diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 402232a1720b7..89b27d8936410 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -309,6 +309,7 @@ symbols! { RwLockReadGuard, RwLockWriteGuard, Saturating, + SeekFrom, Send, SeqCst, Sized, diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs index 644b294db8da1..2a4262b236780 100644 --- a/library/std/src/io/mod.rs +++ b/library/std/src/io/mod.rs @@ -2058,6 +2058,7 @@ pub trait Seek { /// It is used by the [`Seek`] trait. #[derive(Copy, PartialEq, Eq, Clone, Debug)] #[stable(feature = "rust1", since = "1.0.0")] +#[cfg_attr(not(test), rustc_diagnostic_item = "SeekFrom")] pub enum SeekFrom { /// Sets the offset to the provided number of bytes. #[stable(feature = "rust1", since = "1.0.0")] diff --git a/src/tools/clippy/clippy_lints/src/methods/seek_from_current.rs b/src/tools/clippy/clippy_lints/src/methods/seek_from_current.rs index e45c7962f13f4..8bc535ac47a84 100644 --- a/src/tools/clippy/clippy_lints/src/methods/seek_from_current.rs +++ b/src/tools/clippy/clippy_lints/src/methods/seek_from_current.rs @@ -8,7 +8,7 @@ use rustc_span::sym; use clippy_utils::diagnostics::span_lint_and_sugg; use clippy_utils::source::snippet_with_applicability; use clippy_utils::ty::implements_trait; -use clippy_utils::{match_def_path, paths}; +use clippy_utils::is_enum_variant_ctor; use super::SEEK_FROM_CURRENT; @@ -36,8 +36,8 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>, recv: &' fn arg_is_seek_from_current<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) -> bool { if let ExprKind::Call(f, args) = expr.kind && let ExprKind::Path(ref path) = f.kind - && let Some(def_id) = cx.qpath_res(path, f.hir_id).opt_def_id() - && match_def_path(cx, def_id, &paths::STD_IO_SEEK_FROM_CURRENT) + && let Some(ctor_call_id) = cx.qpath_res(path, f.hir_id).opt_def_id() + && is_enum_variant_ctor(cx, sym::SeekFrom, sym!(Current), ctor_call_id) { // check if argument of `SeekFrom::Current` is `0` if args.len() == 1 diff --git a/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs b/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs index cc4cb47e35c63..7c09cc252e13a 100644 --- a/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs +++ b/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs @@ -1,6 +1,6 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::ty::implements_trait; -use clippy_utils::{is_expr_used_or_unified, match_def_path, paths}; +use clippy_utils::{is_expr_used_or_unified, is_enum_variant_ctor}; use rustc_ast::ast::{LitIntType, LitKind}; use rustc_data_structures::packed::Pu128; use rustc_errors::Applicability; @@ -28,8 +28,8 @@ pub(super) fn check<'tcx>( && implements_trait(cx, ty, seek_trait_id, &[]) && let ExprKind::Call(func, args1) = arg.kind && let ExprKind::Path(ref path) = func.kind - && let Some(def_id) = cx.qpath_res(path, func.hir_id).opt_def_id() - && match_def_path(cx, def_id, &paths::STD_IO_SEEKFROM_START) + && let Some(ctor_call_id) = cx.qpath_res(path, func.hir_id).opt_def_id() + && is_enum_variant_ctor(cx, sym::SeekFrom, sym!(Start), ctor_call_id) && args1.len() == 1 && let ExprKind::Lit(lit) = args1[0].kind && let LitKind::Int(Pu128(0), LitIntType::Unsuffixed) = lit.node diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index 5db14872c36b0..0d0d6219c5e05 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -263,24 +263,18 @@ pub fn is_res_lang_ctor(cx: &LateContext<'_>, res: Res, lang_item: LangItem) -> } } -pub fn is_res_diagnostic_ctor(cx: &LateContext<'_>, res: Res, diag_item: Symbol) -> bool { - if let Res::Def(DefKind::Ctor(..), id) = res - && let Some(id) = cx.tcx.opt_parent(id) - { - cx.tcx.is_diagnostic_item(diag_item, id) - } else { - false - } -} -/// Checks if a `QPath` resolves to a constructor of a diagnostic item. -pub fn is_diagnostic_ctor(cx: &LateContext<'_>, qpath: &QPath<'_>, diagnostic_item: Symbol) -> bool { - if let QPath::Resolved(_, path) = qpath { - if let Res::Def(DefKind::Ctor(..), ctor_id) = path.res { - return cx.tcx.is_diagnostic_item(diagnostic_item, cx.tcx.parent(ctor_id)); - } - } - false +/// Checks if `{ctor_call_id}(...)` is `{enum_item}::{variant_name}(...)`. +pub fn is_enum_variant_ctor(cx: &LateContext<'_>, enum_item: Symbol, variant_name: Symbol, ctor_call_id: DefId) -> bool { + let Some(enum_def_id) = cx.tcx.get_diagnostic_item(enum_item) else { + return false; + }; + + let variants = cx.tcx.adt_def(enum_def_id).variants().iter(); + variants + .filter(|variant| variant.name == variant_name) + .filter_map(|variant| variant.ctor.as_ref()) + .any(|(_, ctor_def_id)| *ctor_def_id == ctor_call_id) } /// Checks if the `DefId` matches the given diagnostic item or it's constructor. diff --git a/src/tools/clippy/clippy_utils/src/paths.rs b/src/tools/clippy/clippy_utils/src/paths.rs index c8b59fca52418..a30edc48fff26 100644 --- a/src/tools/clippy/clippy_utils/src/paths.rs +++ b/src/tools/clippy/clippy_utils/src/paths.rs @@ -29,8 +29,7 @@ pub const SYM_MODULE: [&str; 3] = ["rustc_span", "symbol", "sym"]; pub const SYNTAX_CONTEXT: [&str; 3] = ["rustc_span", "hygiene", "SyntaxContext"]; // Paths in `core`/`alloc`/`std`. This should be avoided and cleaned up by adding diagnostic items. -pub const STD_IO_SEEK_FROM_CURRENT: [&str; 4] = ["std", "io", "SeekFrom", "Current"]; -pub const STD_IO_SEEKFROM_START: [&str; 4] = ["std", "io", "SeekFrom", "Start"]; +// ... none currently! // Paths in clippy itself pub const MSRV: [&str; 3] = ["clippy_config", "msrvs", "Msrv"]; diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index c18f569e52867..7b23aa3463923 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -2,8 +2,8 @@ use std::borrow::Cow; use std::collections::{HashMap, HashSet}; -use std::ffi::{OsStr, OsString}; -use std::fs::{self, create_dir_all, File, OpenOptions}; +use std::ffi::OsString; +use std::fs::{self, create_dir_all, File}; use std::hash::{DefaultHasher, Hash, Hasher}; use std::io::prelude::*; use std::io::{self, BufReader}; @@ -14,10 +14,7 @@ use std::{env, iter, str}; use anyhow::Context; use colored::Colorize; -use glob::glob; -use miropt_test_tools::{files_for_miropt_test, MiroptTest, MiroptTestFile}; use regex::{Captures, Regex}; -use rustfix::{apply_suggestions, get_suggestions_from_json, Filter}; use tracing::*; use crate::common::{ @@ -31,12 +28,29 @@ use crate::compute_diff::{write_diff, write_filtered_diff}; use crate::errors::{self, Error, ErrorKind}; use crate::header::TestProps; use crate::read2::{read2_abbreviated, Truncated}; -use crate::util::{add_dylib_path, copy_dir_all, dylib_env_var, logv, static_regex, PathBufExt}; -use crate::{extract_gdb_version, is_android_gdb_target, json, ColorConfig}; +use crate::util::{add_dylib_path, logv, static_regex, PathBufExt}; +use crate::{json, ColorConfig}; -mod coverage; mod debugger; -use debugger::DebuggerCommands; + +// Helper modules that implement test running logic for each test suite. +// tidy-alphabet-start +mod assembly; +mod codegen; +mod codegen_units; +mod coverage; +mod crash; +mod debuginfo; +mod incremental; +mod js_doc; +mod mir_opt; +mod pretty; +mod run_make; +mod rustdoc; +mod rustdoc_json; +mod ui; +mod valgrind; +// tidy-alphabet-end #[cfg(test)] mod tests; @@ -325,81 +339,6 @@ impl<'test> TestCx<'test> { } } - fn run_cfail_test(&self) { - let pm = self.pass_mode(); - let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm)); - self.check_if_test_should_compile(&proc_res, pm); - self.check_no_compiler_crash(&proc_res, self.props.should_ice); - - let output_to_check = self.get_output(&proc_res); - let expected_errors = errors::load_errors(&self.testpaths.file, self.revision); - if !expected_errors.is_empty() { - if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty() - { - self.fatal("both error pattern and expected errors specified"); - } - self.check_expected_errors(expected_errors, &proc_res); - } else { - self.check_all_error_patterns(&output_to_check, &proc_res, pm); - } - if self.props.should_ice { - match proc_res.status.code() { - Some(101) => (), - _ => self.fatal("expected ICE"), - } - } - - self.check_forbid_output(&output_to_check, &proc_res); - } - - fn run_crash_test(&self) { - let pm = self.pass_mode(); - let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm)); - - if std::env::var("COMPILETEST_VERBOSE_CRASHES").is_ok() { - eprintln!("{}", proc_res.status); - eprintln!("{}", proc_res.stdout); - eprintln!("{}", proc_res.stderr); - eprintln!("{}", proc_res.cmdline); - } - - // if a test does not crash, consider it an error - if proc_res.status.success() || matches!(proc_res.status.code(), Some(1 | 0)) { - self.fatal(&format!( - "crashtest no longer crashes/triggers ICE, horray! Please give it a meaningful name, \ - add a doc-comment to the start of the test explaining why it exists and \ - move it to tests/ui or wherever you see fit. Adding 'Fixes #' to your PR description \ - ensures that the corresponding ticket is auto-closed upon merge." - )); - } - } - - fn run_rfail_test(&self) { - let pm = self.pass_mode(); - let should_run = self.run_if_enabled(); - let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm)); - - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - - if let WillExecute::Disabled = should_run { - return; - } - - let proc_res = self.exec_compiled_test(); - - // The value our Makefile configures valgrind to return on failure - const VALGRIND_ERR: i32 = 100; - if proc_res.status.code() == Some(VALGRIND_ERR) { - self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res); - } - - let output_to_check = self.get_output(&proc_res); - self.check_correct_failure_status(&proc_res); - self.check_all_error_patterns(&output_to_check, &proc_res, pm); - } - fn get_output(&self, proc_res: &ProcRes) -> String { if self.props.check_stdout { format!("{}{}", proc_res.stdout, proc_res.stderr) @@ -423,73 +362,6 @@ impl<'test> TestCx<'test> { } } - fn run_cpass_test(&self) { - let emit_metadata = self.should_emit_metadata(self.pass_mode()); - let proc_res = self.compile_test(WillExecute::No, emit_metadata); - - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - - // FIXME(#41968): Move this check to tidy? - if !errors::load_errors(&self.testpaths.file, self.revision).is_empty() { - self.fatal("compile-pass tests with expected warnings should be moved to ui/"); - } - } - - fn run_rpass_test(&self) { - let emit_metadata = self.should_emit_metadata(self.pass_mode()); - let should_run = self.run_if_enabled(); - let proc_res = self.compile_test(should_run, emit_metadata); - - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - - // FIXME(#41968): Move this check to tidy? - if !errors::load_errors(&self.testpaths.file, self.revision).is_empty() { - self.fatal("run-pass tests with expected warnings should be moved to ui/"); - } - - if let WillExecute::Disabled = should_run { - return; - } - - let proc_res = self.exec_compiled_test(); - if !proc_res.status.success() { - self.fatal_proc_rec("test run failed!", &proc_res); - } - } - - fn run_valgrind_test(&self) { - assert!(self.revision.is_none(), "revisions not relevant here"); - - if self.config.valgrind_path.is_none() { - assert!(!self.config.force_valgrind); - return self.run_rpass_test(); - } - - let should_run = self.run_if_enabled(); - let mut proc_res = self.compile_test(should_run, Emit::None); - - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - - if let WillExecute::Disabled = should_run { - return; - } - - let mut new_config = self.config.clone(); - new_config.runner = new_config.valgrind_path.clone(); - let new_cx = TestCx { config: &new_config, ..*self }; - proc_res = new_cx.exec_compiled_test(); - - if !proc_res.status.success() { - self.fatal_proc_rec("test run failed!", &proc_res); - } - } - /// Runs a [`Command`] and waits for it to finish, then converts its exit /// status and output streams into a [`ProcRes`]. /// @@ -517,104 +389,6 @@ impl<'test> TestCx<'test> { proc_res } - fn run_pretty_test(&self) { - if self.props.pp_exact.is_some() { - logv(self.config, "testing for exact pretty-printing".to_owned()); - } else { - logv(self.config, "testing for converging pretty-printing".to_owned()); - } - - let rounds = match self.props.pp_exact { - Some(_) => 1, - None => 2, - }; - - let src = fs::read_to_string(&self.testpaths.file).unwrap(); - let mut srcs = vec![src]; - - let mut round = 0; - while round < rounds { - logv( - self.config, - format!("pretty-printing round {} revision {:?}", round, self.revision), - ); - let read_from = - if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) }; - - let proc_res = self.print_source(read_from, &self.props.pretty_mode); - if !proc_res.status.success() { - self.fatal_proc_rec( - &format!( - "pretty-printing failed in round {} revision {:?}", - round, self.revision - ), - &proc_res, - ); - } - - let ProcRes { stdout, .. } = proc_res; - srcs.push(stdout); - round += 1; - } - - let mut expected = match self.props.pp_exact { - Some(ref file) => { - let filepath = self.testpaths.file.parent().unwrap().join(file); - fs::read_to_string(&filepath).unwrap() - } - None => srcs[srcs.len() - 2].clone(), - }; - let mut actual = srcs[srcs.len() - 1].clone(); - - if self.props.pp_exact.is_some() { - // Now we have to care about line endings - let cr = "\r".to_owned(); - actual = actual.replace(&cr, ""); - expected = expected.replace(&cr, ""); - } - - if !self.config.bless { - self.compare_source(&expected, &actual); - } else if expected != actual { - let filepath_buf; - let filepath = match &self.props.pp_exact { - Some(file) => { - filepath_buf = self.testpaths.file.parent().unwrap().join(file); - &filepath_buf - } - None => &self.testpaths.file, - }; - fs::write(filepath, &actual).unwrap(); - } - - // If we're only making sure that the output matches then just stop here - if self.props.pretty_compare_only { - return; - } - - // Finally, let's make sure it actually appears to remain valid code - let proc_res = self.typecheck_source(actual); - if !proc_res.status.success() { - self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res); - } - - if !self.props.pretty_expanded { - return; - } - - // additionally, run `-Zunpretty=expanded` and try to build it. - let proc_res = self.print_source(ReadFrom::Path, "expanded"); - if !proc_res.status.success() { - self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res); - } - - let ProcRes { stdout: expanded_src, .. } = proc_res; - let proc_res = self.typecheck_source(expanded_src); - if !proc_res.status.success() { - self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res); - } - } - fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes { let aux_dir = self.aux_output_dir_name(); let input: &str = match read_from { @@ -727,624 +501,130 @@ impl<'test> TestCx<'test> { self.compose_and_run_compiler(rustc, Some(src), self.testpaths) } - fn run_debuginfo_test(&self) { - match self.config.debugger.unwrap() { - Debugger::Cdb => self.run_debuginfo_cdb_test(), - Debugger::Gdb => self.run_debuginfo_gdb_test(), - Debugger::Lldb => self.run_debuginfo_lldb_test(), - } - } - - fn run_debuginfo_cdb_test(&self) { - let config = Config { - target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags), - host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags), - ..self.config.clone() - }; + fn maybe_add_external_args(&self, cmd: &mut Command, args: &Vec) { + // Filter out the arguments that should not be added by runtest here. + // + // Notable use-cases are: do not add our optimisation flag if + // `compile-flags: -Copt-level=x` and similar for debug-info level as well. + const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C*/ "opt-level="]; + const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C*/ "debuginfo="]; - let test_cx = TestCx { config: &config, ..*self }; + // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting + // its arguments. They need to be collected separately. For now I cannot be bothered to + // implement this the "right" way. + let have_opt_flag = + self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f))); + let have_debug_flag = self + .props + .compile_flags + .iter() + .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f))); - test_cx.run_debuginfo_cdb_test_no_opt(); + for arg in args { + if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag { + continue; + } + if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag { + continue; + } + cmd.arg(arg); + } } - fn run_debuginfo_cdb_test_no_opt(&self) { - let exe_file = self.make_exe_name(); - - // Existing PDB files are update in-place. When changing the debuginfo - // the compiler generates for something, this can lead to the situation - // where both the old and the new version of the debuginfo for the same - // type is present in the PDB, which is very confusing. - // Therefore we delete any existing PDB file before compiling the test - // case. - // FIXME: If can reliably detect that MSVC's link.exe is used, then - // passing `/INCREMENTAL:NO` might be a cleaner way to do this. - let pdb_file = exe_file.with_extension(".pdb"); - if pdb_file.exists() { - std::fs::remove_file(pdb_file).unwrap(); + fn check_all_error_patterns( + &self, + output_to_check: &str, + proc_res: &ProcRes, + pm: Option, + ) { + if self.props.error_patterns.is_empty() && self.props.regex_error_patterns.is_empty() { + if pm.is_some() { + // FIXME(#65865) + return; + } else { + self.fatal(&format!( + "no error pattern specified in {:?}", + self.testpaths.file.display() + )); + } } - // compile test file (it should have 'compile-flags:-g' in the header) - let should_run = self.run_if_enabled(); - let compile_result = self.compile_test(should_run, Emit::None); - if !compile_result.status.success() { - self.fatal_proc_rec("compilation failed!", &compile_result); - } - if let WillExecute::Disabled = should_run { - return; - } + let mut missing_patterns: Vec = Vec::new(); - let prefixes = { - static PREFIXES: &[&str] = &["cdb", "cdbg"]; - // No "native rust support" variation for CDB yet. - PREFIXES - }; + self.check_error_patterns(output_to_check, &mut missing_patterns); + self.check_regex_error_patterns(output_to_check, proc_res, &mut missing_patterns); - // Parse debugger commands etc from test files - let dbg_cmds = DebuggerCommands::parse_from( - &self.testpaths.file, - self.config, - prefixes, - self.revision, - ) - .unwrap_or_else(|e| self.fatal(&e)); - - // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands - let mut script_str = String::with_capacity(2048); - script_str.push_str("version\n"); // List CDB (and more) version info in test output - script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug - - // If a .js file exists next to the source file being tested, then this is a JavaScript - // debugging extension that needs to be loaded. - let mut js_extension = self.testpaths.file.clone(); - js_extension.set_extension("cdb.js"); - if js_extension.exists() { - script_str.push_str(&format!(".scriptload \"{}\"\n", js_extension.to_string_lossy())); + if missing_patterns.is_empty() { + return; } - // Set breakpoints on every line that contains the string "#break" - let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy(); - for line in &dbg_cmds.breakpoint_lines { - script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line)); + if missing_patterns.len() == 1 { + self.fatal_proc_rec( + &format!("error pattern '{}' not found!", missing_patterns[0]), + proc_res, + ); + } else { + for pattern in missing_patterns { + self.error(&format!("error pattern '{}' not found!", pattern)); + } + self.fatal_proc_rec("multiple error patterns not found", proc_res); } + } - // Append the other `cdb-command:`s - for line in &dbg_cmds.commands { - script_str.push_str(line); - script_str.push('\n'); + fn check_error_patterns(&self, output_to_check: &str, missing_patterns: &mut Vec) { + debug!("check_error_patterns"); + for pattern in &self.props.error_patterns { + if output_to_check.contains(pattern.trim()) { + debug!("found error pattern {}", pattern); + } else { + missing_patterns.push(pattern.to_string()); + } } + } - script_str.push_str("qq\n"); // Quit the debugger (including remote debugger, if any) - - // Write the script into a file - debug!("script_str = {}", script_str); - self.dump_output_file(&script_str, "debugger.script"); - let debugger_script = self.make_out_name("debugger.script"); - - let cdb_path = &self.config.cdb.as_ref().unwrap(); - let mut cdb = Command::new(cdb_path); - cdb.arg("-lines") // Enable source line debugging. - .arg("-cf") - .arg(&debugger_script) - .arg(&exe_file); - - let debugger_run_result = self.compose_and_run( - cdb, - self.config.run_lib_path.to_str().unwrap(), - None, // aux_path - None, // input - ); + fn check_regex_error_patterns( + &self, + output_to_check: &str, + proc_res: &ProcRes, + missing_patterns: &mut Vec, + ) { + debug!("check_regex_error_patterns"); - if !debugger_run_result.status.success() { - self.fatal_proc_rec("Error while running CDB", &debugger_run_result); + for pattern in &self.props.regex_error_patterns { + let pattern = pattern.trim(); + let re = match Regex::new(pattern) { + Ok(re) => re, + Err(err) => { + self.fatal_proc_rec( + &format!("invalid regex error pattern '{}': {:?}", pattern, err), + proc_res, + ); + } + }; + if re.is_match(output_to_check) { + debug!("found regex error pattern {}", pattern); + } else { + missing_patterns.push(pattern.to_string()); + } } + } - if let Err(e) = dbg_cmds.check_output(&debugger_run_result) { - self.fatal_proc_rec(&e, &debugger_run_result); + fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) { + match proc_res.status.code() { + Some(101) if !should_ice => { + self.fatal_proc_rec("compiler encountered internal error", proc_res) + } + None => self.fatal_proc_rec("compiler terminated by signal", proc_res), + _ => (), } } - fn run_debuginfo_gdb_test(&self) { - let config = Config { - target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags), - host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags), - ..self.config.clone() - }; - - let test_cx = TestCx { config: &config, ..*self }; - - test_cx.run_debuginfo_gdb_test_no_opt(); - } - - fn run_debuginfo_gdb_test_no_opt(&self) { - let dbg_cmds = DebuggerCommands::parse_from( - &self.testpaths.file, - self.config, - &["gdb"], - self.revision, - ) - .unwrap_or_else(|e| self.fatal(&e)); - let mut cmds = dbg_cmds.commands.join("\n"); - - // compile test file (it should have 'compile-flags:-g' in the header) - let should_run = self.run_if_enabled(); - let compiler_run_result = self.compile_test(should_run, Emit::None); - if !compiler_run_result.status.success() { - self.fatal_proc_rec("compilation failed!", &compiler_run_result); - } - if let WillExecute::Disabled = should_run { - return; - } - - let exe_file = self.make_exe_name(); - - let debugger_run_result; - if is_android_gdb_target(&self.config.target) { - cmds = cmds.replace("run", "continue"); - - let tool_path = match self.config.android_cross_path.to_str() { - Some(x) => x.to_owned(), - None => self.fatal("cannot find android cross path"), - }; - - // write debugger script - let mut script_str = String::with_capacity(2048); - script_str.push_str(&format!("set charset {}\n", Self::charset())); - script_str.push_str(&format!("set sysroot {}\n", tool_path)); - script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap())); - script_str.push_str("target remote :5039\n"); - script_str.push_str(&format!( - "set solib-search-path \ - ./{}/stage2/lib/rustlib/{}/lib/\n", - self.config.host, self.config.target - )); - for line in &dbg_cmds.breakpoint_lines { - script_str.push_str( - format!( - "break {:?}:{}\n", - self.testpaths.file.file_name().unwrap().to_string_lossy(), - *line - ) - .as_str(), - ); - } - script_str.push_str(&cmds); - script_str.push_str("\nquit\n"); - - debug!("script_str = {}", script_str); - self.dump_output_file(&script_str, "debugger.script"); - - let adb_path = &self.config.adb_path; - - Command::new(adb_path) - .arg("push") - .arg(&exe_file) - .arg(&self.config.adb_test_dir) - .status() - .unwrap_or_else(|e| panic!("failed to exec `{adb_path:?}`: {e:?}")); - - Command::new(adb_path) - .args(&["forward", "tcp:5039", "tcp:5039"]) - .status() - .unwrap_or_else(|e| panic!("failed to exec `{adb_path:?}`: {e:?}")); - - let adb_arg = format!( - "export LD_LIBRARY_PATH={}; \ - gdbserver{} :5039 {}/{}", - self.config.adb_test_dir.clone(), - if self.config.target.contains("aarch64") { "64" } else { "" }, - self.config.adb_test_dir.clone(), - exe_file.file_name().unwrap().to_str().unwrap() - ); - - debug!("adb arg: {}", adb_arg); - let mut adb = Command::new(adb_path) - .args(&["shell", &adb_arg]) - .stdout(Stdio::piped()) - .stderr(Stdio::inherit()) - .spawn() - .unwrap_or_else(|e| panic!("failed to exec `{adb_path:?}`: {e:?}")); - - // Wait for the gdbserver to print out "Listening on port ..." - // at which point we know that it's started and then we can - // execute the debugger below. - let mut stdout = BufReader::new(adb.stdout.take().unwrap()); - let mut line = String::new(); - loop { - line.truncate(0); - stdout.read_line(&mut line).unwrap(); - if line.starts_with("Listening on port 5039") { - break; - } - } - drop(stdout); - - let mut debugger_script = OsString::from("-command="); - debugger_script.push(self.make_out_name("debugger.script")); - let debugger_opts: &[&OsStr] = - &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script]; - - let gdb_path = self.config.gdb.as_ref().unwrap(); - let Output { status, stdout, stderr } = Command::new(&gdb_path) - .args(debugger_opts) - .output() - .unwrap_or_else(|e| panic!("failed to exec `{gdb_path:?}`: {e:?}")); - let cmdline = { - let mut gdb = Command::new(&format!("{}-gdb", self.config.target)); - gdb.args(debugger_opts); - let cmdline = self.make_cmdline(&gdb, ""); - logv(self.config, format!("executing {}", cmdline)); - cmdline - }; - - debugger_run_result = ProcRes { - status, - stdout: String::from_utf8(stdout).unwrap(), - stderr: String::from_utf8(stderr).unwrap(), - truncated: Truncated::No, - cmdline, - }; - if adb.kill().is_err() { - println!("Adb process is already finished."); - } - } else { - let rust_src_root = - self.config.find_rust_src_root().expect("Could not find Rust source root"); - let rust_pp_module_rel_path = Path::new("./src/etc"); - let rust_pp_module_abs_path = - rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned(); - // write debugger script - let mut script_str = String::with_capacity(2048); - script_str.push_str(&format!("set charset {}\n", Self::charset())); - script_str.push_str("show version\n"); - - match self.config.gdb_version { - Some(version) => { - println!("NOTE: compiletest thinks it is using GDB version {}", version); - - if version > extract_gdb_version("7.4").unwrap() { - // Add the directory containing the pretty printers to - // GDB's script auto loading safe path - script_str.push_str(&format!( - "add-auto-load-safe-path {}\n", - rust_pp_module_abs_path.replace(r"\", r"\\") - )); - - let output_base_dir = self.output_base_dir().to_str().unwrap().to_owned(); - - // Add the directory containing the output binary to - // include embedded pretty printers to GDB's script - // auto loading safe path - script_str.push_str(&format!( - "add-auto-load-safe-path {}\n", - output_base_dir.replace(r"\", r"\\") - )); - } - } - _ => { - println!( - "NOTE: compiletest does not know which version of \ - GDB it is using" - ); - } - } - - // The following line actually doesn't have to do anything with - // pretty printing, it just tells GDB to print values on one line: - script_str.push_str("set print pretty off\n"); - - // Add the pretty printer directory to GDB's source-file search path - script_str - .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\"))); - - // Load the target executable - script_str - .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\"))); - - // Force GDB to print values in the Rust format. - script_str.push_str("set language rust\n"); - - // Add line breakpoints - for line in &dbg_cmds.breakpoint_lines { - script_str.push_str(&format!( - "break '{}':{}\n", - self.testpaths.file.file_name().unwrap().to_string_lossy(), - *line - )); - } - - script_str.push_str(&cmds); - script_str.push_str("\nquit\n"); - - debug!("script_str = {}", script_str); - self.dump_output_file(&script_str, "debugger.script"); - - let mut debugger_script = OsString::from("-command="); - debugger_script.push(self.make_out_name("debugger.script")); - - let debugger_opts: &[&OsStr] = - &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script]; - - let mut gdb = Command::new(self.config.gdb.as_ref().unwrap()); - let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { - format!("{pp}:{rust_pp_module_abs_path}") - } else { - rust_pp_module_abs_path - }; - gdb.args(debugger_opts).env("PYTHONPATH", pythonpath); - - debugger_run_result = - self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None); - } - - if !debugger_run_result.status.success() { - self.fatal_proc_rec("gdb failed to execute", &debugger_run_result); - } - - if let Err(e) = dbg_cmds.check_output(&debugger_run_result) { - self.fatal_proc_rec(&e, &debugger_run_result); - } - } - - fn run_debuginfo_lldb_test(&self) { - if self.config.lldb_python_dir.is_none() { - self.fatal("Can't run LLDB test because LLDB's python path is not set."); - } - - let config = Config { - target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags), - host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags), - ..self.config.clone() - }; - - let test_cx = TestCx { config: &config, ..*self }; - - test_cx.run_debuginfo_lldb_test_no_opt(); - } - - fn run_debuginfo_lldb_test_no_opt(&self) { - // compile test file (it should have 'compile-flags:-g' in the header) - let should_run = self.run_if_enabled(); - let compile_result = self.compile_test(should_run, Emit::None); - if !compile_result.status.success() { - self.fatal_proc_rec("compilation failed!", &compile_result); - } - if let WillExecute::Disabled = should_run { - return; - } - - let exe_file = self.make_exe_name(); - - match self.config.lldb_version { - Some(ref version) => { - println!("NOTE: compiletest thinks it is using LLDB version {}", version); - } - _ => { - println!( - "NOTE: compiletest does not know which version of \ - LLDB it is using" - ); - } - } - - // Parse debugger commands etc from test files - let dbg_cmds = DebuggerCommands::parse_from( - &self.testpaths.file, - self.config, - &["lldb"], - self.revision, - ) - .unwrap_or_else(|e| self.fatal(&e)); - - // Write debugger script: - // We don't want to hang when calling `quit` while the process is still running - let mut script_str = String::from("settings set auto-confirm true\n"); - - // Make LLDB emit its version, so we have it documented in the test output - script_str.push_str("version\n"); - - // Switch LLDB into "Rust mode" - let rust_src_root = - self.config.find_rust_src_root().expect("Could not find Rust source root"); - let rust_pp_module_rel_path = Path::new("./src/etc"); - let rust_pp_module_abs_path = rust_src_root.join(rust_pp_module_rel_path); - - script_str.push_str(&format!( - "command script import {}/lldb_lookup.py\n", - rust_pp_module_abs_path.to_str().unwrap() - )); - File::open(rust_pp_module_abs_path.join("lldb_commands")) - .and_then(|mut file| file.read_to_string(&mut script_str)) - .expect("Failed to read lldb_commands"); - - // Set breakpoints on every line that contains the string "#break" - let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy(); - for line in &dbg_cmds.breakpoint_lines { - script_str.push_str(&format!( - "breakpoint set --file '{}' --line {}\n", - source_file_name, line - )); - } - - // Append the other commands - for line in &dbg_cmds.commands { - script_str.push_str(line); - script_str.push('\n'); - } - - // Finally, quit the debugger - script_str.push_str("\nquit\n"); - - // Write the script into a file - debug!("script_str = {}", script_str); - self.dump_output_file(&script_str, "debugger.script"); - let debugger_script = self.make_out_name("debugger.script"); - - // Let LLDB execute the script via lldb_batchmode.py - let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root); - - if !debugger_run_result.status.success() { - self.fatal_proc_rec("Error while running LLDB", &debugger_run_result); - } - - if let Err(e) = dbg_cmds.check_output(&debugger_run_result) { - self.fatal_proc_rec(&e, &debugger_run_result); - } - } - - fn run_lldb( - &self, - test_executable: &Path, - debugger_script: &Path, - rust_src_root: &Path, - ) -> ProcRes { - // Prepare the lldb_batchmode which executes the debugger script - let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py"); - let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { - format!("{pp}:{}", self.config.lldb_python_dir.as_ref().unwrap()) - } else { - self.config.lldb_python_dir.as_ref().unwrap().to_string() - }; - self.run_command_to_procres( - Command::new(&self.config.python) - .arg(&lldb_script_path) - .arg(test_executable) - .arg(debugger_script) - .env("PYTHONUNBUFFERED", "1") // Help debugging #78665 - .env("PYTHONPATH", pythonpath), - ) - } - - fn cleanup_debug_info_options(&self, options: &Vec) -> Vec { - // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS. - let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()]; - - options.iter().filter(|x| !options_to_remove.contains(x)).cloned().collect() - } - - fn maybe_add_external_args(&self, cmd: &mut Command, args: &Vec) { - // Filter out the arguments that should not be added by runtest here. - // - // Notable use-cases are: do not add our optimisation flag if - // `compile-flags: -Copt-level=x` and similar for debug-info level as well. - const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C*/ "opt-level="]; - const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C*/ "debuginfo="]; - - // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting - // its arguments. They need to be collected separately. For now I cannot be bothered to - // implement this the "right" way. - let have_opt_flag = - self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f))); - let have_debug_flag = self - .props - .compile_flags - .iter() - .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f))); - - for arg in args { - if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag { - continue; - } - if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag { - continue; - } - cmd.arg(arg); - } - } - - fn check_all_error_patterns( - &self, - output_to_check: &str, - proc_res: &ProcRes, - pm: Option, - ) { - if self.props.error_patterns.is_empty() && self.props.regex_error_patterns.is_empty() { - if pm.is_some() { - // FIXME(#65865) - return; - } else { - self.fatal(&format!( - "no error pattern specified in {:?}", - self.testpaths.file.display() - )); - } - } - - let mut missing_patterns: Vec = Vec::new(); - - self.check_error_patterns(output_to_check, &mut missing_patterns); - self.check_regex_error_patterns(output_to_check, proc_res, &mut missing_patterns); - - if missing_patterns.is_empty() { - return; - } - - if missing_patterns.len() == 1 { - self.fatal_proc_rec( - &format!("error pattern '{}' not found!", missing_patterns[0]), - proc_res, - ); - } else { - for pattern in missing_patterns { - self.error(&format!("error pattern '{}' not found!", pattern)); - } - self.fatal_proc_rec("multiple error patterns not found", proc_res); - } - } - - fn check_error_patterns(&self, output_to_check: &str, missing_patterns: &mut Vec) { - debug!("check_error_patterns"); - for pattern in &self.props.error_patterns { - if output_to_check.contains(pattern.trim()) { - debug!("found error pattern {}", pattern); - } else { - missing_patterns.push(pattern.to_string()); - } - } - } - - fn check_regex_error_patterns( - &self, - output_to_check: &str, - proc_res: &ProcRes, - missing_patterns: &mut Vec, - ) { - debug!("check_regex_error_patterns"); - - for pattern in &self.props.regex_error_patterns { - let pattern = pattern.trim(); - let re = match Regex::new(pattern) { - Ok(re) => re, - Err(err) => { - self.fatal_proc_rec( - &format!("invalid regex error pattern '{}': {:?}", pattern, err), - proc_res, - ); - } - }; - if re.is_match(output_to_check) { - debug!("found regex error pattern {}", pattern); - } else { - missing_patterns.push(pattern.to_string()); - } - } - } - - fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) { - match proc_res.status.code() { - Some(101) if !should_ice => { - self.fatal_proc_rec("compiler encountered internal error", proc_res) - } - None => self.fatal_proc_rec("compiler terminated by signal", proc_res), - _ => (), - } - } - - fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) { - for pat in &self.props.forbid_output { - if output_to_check.contains(pat) { - self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res); - } - } + fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) { + for pat in &self.props.forbid_output { + if output_to_check.contains(pat) { + self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res); + } + } } fn check_expected_errors(&self, expected_errors: Vec, proc_res: &ProcRes) { @@ -2016,6 +1296,14 @@ impl<'test> TestCx<'test> { || self.config.src_base.ends_with("rustdoc-json") } + fn get_mir_dump_dir(&self) -> PathBuf { + let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path()); + debug!("input_file: {:?}", self.testpaths.file); + mir_dump_dir.push(&self.testpaths.relative_dir); + mir_dump_dir.push(self.testpaths.file.file_stem().unwrap()); + mir_dump_dir + } + fn make_compile_args( &self, input_file: &Path, @@ -2626,77 +1914,13 @@ impl<'test> TestCx<'test> { self.compose_and_run(filecheck, "", None, None) } - fn run_codegen_test(&self) { - if self.config.llvm_filecheck.is_none() { - self.fatal("missing --llvm-filecheck"); - } - - let (proc_res, output_path) = self.compile_test_and_save_ir(); - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } + fn charset() -> &'static str { + // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset + if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" } + } - if let Some(PassMode::Build) = self.pass_mode() { - return; - } - let proc_res = self.verify_with_filecheck(&output_path); - if !proc_res.status.success() { - self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res); - } - } - - fn run_assembly_test(&self) { - if self.config.llvm_filecheck.is_none() { - self.fatal("missing --llvm-filecheck"); - } - - let (proc_res, output_path) = self.compile_test_and_save_assembly(); - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - - let proc_res = self.verify_with_filecheck(&output_path); - if !proc_res.status.success() { - self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res); - } - } - - fn charset() -> &'static str { - // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset - if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" } - } - - fn run_rustdoc_test(&self) { - assert!(self.revision.is_none(), "revisions not relevant here"); - - let out_dir = self.output_base_dir(); - remove_and_create_dir_all(&out_dir); - - let proc_res = self.document(&out_dir, &self.testpaths); - if !proc_res.status.success() { - self.fatal_proc_rec("rustdoc failed!", &proc_res); - } - - if self.props.check_test_line_numbers_match { - self.check_rustdoc_test_option(proc_res); - } else { - let root = self.config.find_rust_src_root().unwrap(); - let mut cmd = Command::new(&self.config.python); - cmd.arg(root.join("src/etc/htmldocck.py")).arg(&out_dir).arg(&self.testpaths.file); - if self.config.bless { - cmd.arg("--bless"); - } - let res = self.run_command_to_procres(&mut cmd); - if !res.status.success() { - self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| { - this.compare_to_default_rustdoc(&out_dir) - }); - } - } - } - - fn compare_to_default_rustdoc(&mut self, out_dir: &Path) { - if !self.config.has_tidy { + fn compare_to_default_rustdoc(&mut self, out_dir: &Path) { + if !self.config.has_tidy { return; } println!("info: generating a diff against nightly rustdoc"); @@ -2847,49 +2071,6 @@ impl<'test> TestCx<'test> { }; } - fn run_rustdoc_json_test(&self) { - //FIXME: Add bless option. - - assert!(self.revision.is_none(), "revisions not relevant here"); - - let out_dir = self.output_base_dir(); - remove_and_create_dir_all(&out_dir); - - let proc_res = self.document(&out_dir, &self.testpaths); - if !proc_res.status.success() { - self.fatal_proc_rec("rustdoc failed!", &proc_res); - } - - let root = self.config.find_rust_src_root().unwrap(); - let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap()); - json_out.set_extension("json"); - let res = self.run_command_to_procres( - Command::new(self.config.jsondocck_path.as_ref().unwrap()) - .arg("--doc-dir") - .arg(root.join(&out_dir)) - .arg("--template") - .arg(&self.testpaths.file), - ); - - if !res.status.success() { - self.fatal_proc_rec_with_ctx("jsondocck failed!", &res, |_| { - println!("Rustdoc Output:"); - proc_res.print_info(); - }) - } - - let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap()); - json_out.set_extension("json"); - - let res = self.run_command_to_procres( - Command::new(self.config.jsondoclint_path.as_ref().unwrap()).arg(&json_out), - ); - - if !res.status.success() { - self.fatal_proc_rec("jsondoclint failed!", &res); - } - } - fn get_lines>( &self, path: &P, @@ -2990,824 +2171,6 @@ impl<'test> TestCx<'test> { } } - fn run_codegen_units_test(&self) { - assert!(self.revision.is_none(), "revisions not relevant here"); - - let proc_res = self.compile_test(WillExecute::No, Emit::None); - - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - - self.check_no_compiler_crash(&proc_res, self.props.should_ice); - - const PREFIX: &str = "MONO_ITEM "; - const CGU_MARKER: &str = "@@"; - - // Some MonoItems can contain {closure@/path/to/checkout/tests/codgen-units/test.rs} - // To prevent the current dir from leaking, we just replace the entire path to the test - // file with TEST_PATH. - let actual: Vec = proc_res - .stdout - .lines() - .filter(|line| line.starts_with(PREFIX)) - .map(|line| { - line.replace(&self.testpaths.file.display().to_string(), "TEST_PATH").to_string() - }) - .map(|line| str_to_mono_item(&line, true)) - .collect(); - - let expected: Vec = errors::load_errors(&self.testpaths.file, None) - .iter() - .map(|e| str_to_mono_item(&e.msg[..], false)) - .collect(); - - let mut missing = Vec::new(); - let mut wrong_cgus = Vec::new(); - - for expected_item in &expected { - let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name); - - if let Some(actual_item) = actual_item_with_same_name { - if !expected_item.codegen_units.is_empty() && - // Also check for codegen units - expected_item.codegen_units != actual_item.codegen_units - { - wrong_cgus.push((expected_item.clone(), actual_item.clone())); - } - } else { - missing.push(expected_item.string.clone()); - } - } - - let unexpected: Vec<_> = actual - .iter() - .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name)) - .map(|acgu| acgu.string.clone()) - .collect(); - - if !missing.is_empty() { - missing.sort(); - - println!("\nThese items should have been contained but were not:\n"); - - for item in &missing { - println!("{}", item); - } - - println!("\n"); - } - - if !unexpected.is_empty() { - let sorted = { - let mut sorted = unexpected.clone(); - sorted.sort(); - sorted - }; - - println!("\nThese items were contained but should not have been:\n"); - - for item in sorted { - println!("{}", item); - } - - println!("\n"); - } - - if !wrong_cgus.is_empty() { - wrong_cgus.sort_by_key(|pair| pair.0.name.clone()); - println!("\nThe following items were assigned to wrong codegen units:\n"); - - for &(ref expected_item, ref actual_item) in &wrong_cgus { - println!("{}", expected_item.name); - println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units)); - println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units)); - println!(); - } - } - - if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) { - panic!(); - } - - #[derive(Clone, Eq, PartialEq)] - struct MonoItem { - name: String, - codegen_units: HashSet, - string: String, - } - - // [MONO_ITEM] name [@@ (cgu)+] - fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem { - let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() }; - - let full_string = format!("{}{}", PREFIX, s); - - let parts: Vec<&str> = - s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect(); - - let name = parts[0].trim(); - - let cgus = if parts.len() > 1 { - let cgus_str = parts[1]; - - cgus_str - .split(' ') - .map(str::trim) - .filter(|s| !s.is_empty()) - .map(|s| { - if cgu_has_crate_disambiguator { - remove_crate_disambiguators_from_set_of_cgu_names(s) - } else { - s.to_string() - } - }) - .collect() - } else { - HashSet::new() - }; - - MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string } - } - - fn codegen_units_to_str(cgus: &HashSet) -> String { - let mut cgus: Vec<_> = cgus.iter().collect(); - cgus.sort(); - - let mut string = String::new(); - for cgu in cgus { - string.push_str(&cgu[..]); - string.push(' '); - } - - string - } - - // Given a cgu-name-prefix of the form . or - // the form .-in-., - // remove all crate-disambiguators. - fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String { - let Some(captures) = - static_regex!(r"^[^\.]+(?P\.[[:alnum:]]+)(-in-[^\.]+(?P\.[[:alnum:]]+))?") - .captures(cgu) - else { - panic!("invalid cgu name encountered: {cgu}"); - }; - - let mut new_name = cgu.to_owned(); - - if let Some(d2) = captures.name("d2") { - new_name.replace_range(d2.start()..d2.end(), ""); - } - - let d1 = captures.name("d1").unwrap(); - new_name.replace_range(d1.start()..d1.end(), ""); - - new_name - } - - // The name of merged CGUs is constructed as the names of the original - // CGUs joined with "--". This function splits such composite CGU names - // and handles each component individually. - fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String { - cgus.split("--").map(remove_crate_disambiguator_from_cgu).collect::>().join("--") - } - } - - fn init_incremental_test(&self) { - // (See `run_incremental_test` for an overview of how incremental tests work.) - - // Before any of the revisions have executed, create the - // incremental workproduct directory. Delete any old - // incremental work products that may be there from prior - // runs. - let incremental_dir = self.props.incremental_dir.as_ref().unwrap(); - if incremental_dir.exists() { - // Canonicalizing the path will convert it to the //?/ format - // on Windows, which enables paths longer than 260 character - let canonicalized = incremental_dir.canonicalize().unwrap(); - fs::remove_dir_all(canonicalized).unwrap(); - } - fs::create_dir_all(&incremental_dir).unwrap(); - - if self.config.verbose { - println!("init_incremental_test: incremental_dir={}", incremental_dir.display()); - } - } - - fn run_incremental_test(&self) { - // Basic plan for a test incremental/foo/bar.rs: - // - load list of revisions rpass1, cfail2, rpass3 - // - each should begin with `cpass`, `rpass`, `cfail`, or `rfail` - // - if `cpass`, expect compilation to succeed, don't execute - // - if `rpass`, expect compilation and execution to succeed - // - if `cfail`, expect compilation to fail - // - if `rfail`, expect compilation to succeed and execution to fail - // - create a directory build/foo/bar.incremental - // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1 - // - because name of revision starts with "rpass", expect success - // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2 - // - because name of revision starts with "cfail", expect an error - // - load expected errors as usual, but filter for those that end in `[rfail2]` - // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3 - // - because name of revision starts with "rpass", expect success - // - execute build/foo/bar.exe and save output - // - // FIXME -- use non-incremental mode as an oracle? That doesn't apply - // to #[rustc_dirty] and clean tests I guess - - let revision = self.revision.expect("incremental tests require a list of revisions"); - - // Incremental workproduct directory should have already been created. - let incremental_dir = self.props.incremental_dir.as_ref().unwrap(); - assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir"); - - if self.config.verbose { - print!("revision={:?} props={:#?}", revision, self.props); - } - - if revision.starts_with("cpass") { - if self.props.should_ice { - self.fatal("can only use should-ice in cfail tests"); - } - self.run_cpass_test(); - } else if revision.starts_with("rpass") { - if self.props.should_ice { - self.fatal("can only use should-ice in cfail tests"); - } - self.run_rpass_test(); - } else if revision.starts_with("rfail") { - if self.props.should_ice { - self.fatal("can only use should-ice in cfail tests"); - } - self.run_rfail_test(); - } else if revision.starts_with("cfail") { - self.run_cfail_test(); - } else { - self.fatal("revision name must begin with cpass, rpass, rfail, or cfail"); - } - } - - fn run_rmake_test(&self) { - let test_dir = &self.testpaths.file; - if test_dir.join("rmake.rs").exists() { - self.run_rmake_v2_test(); - } else if test_dir.join("Makefile").exists() { - self.run_rmake_legacy_test(); - } else { - self.fatal("failed to find either `rmake.rs` or `Makefile`") - } - } - - fn run_rmake_legacy_test(&self) { - let cwd = env::current_dir().unwrap(); - let src_root = self.config.src_base.parent().unwrap().parent().unwrap(); - let src_root = cwd.join(&src_root); - - let tmpdir = cwd.join(self.output_base_name()); - if tmpdir.exists() { - self.aggressive_rm_rf(&tmpdir).unwrap(); - } - create_dir_all(&tmpdir).unwrap(); - - let host = &self.config.host; - let make = if host.contains("dragonfly") - || host.contains("freebsd") - || host.contains("netbsd") - || host.contains("openbsd") - || host.contains("aix") - { - "gmake" - } else { - "make" - }; - - let mut cmd = Command::new(make); - cmd.current_dir(&self.testpaths.file) - .stdout(Stdio::piped()) - .stderr(Stdio::piped()) - .env("TARGET", &self.config.target) - .env("PYTHON", &self.config.python) - .env("S", src_root) - .env("RUST_BUILD_STAGE", &self.config.stage_id) - .env("RUSTC", cwd.join(&self.config.rustc_path)) - .env("TMPDIR", &tmpdir) - .env("LD_LIB_PATH_ENVVAR", dylib_env_var()) - .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path)) - .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path)) - .env("LLVM_COMPONENTS", &self.config.llvm_components) - // We for sure don't want these tests to run in parallel, so make - // sure they don't have access to these vars if we run via `make` - // at the top level - .env_remove("MAKEFLAGS") - .env_remove("MFLAGS") - .env_remove("CARGO_MAKEFLAGS"); - - if let Some(ref rustdoc) = self.config.rustdoc_path { - cmd.env("RUSTDOC", cwd.join(rustdoc)); - } - - if let Some(ref node) = self.config.nodejs { - cmd.env("NODE", node); - } - - if let Some(ref linker) = self.config.target_linker { - cmd.env("RUSTC_LINKER", linker); - } - - if let Some(ref clang) = self.config.run_clang_based_tests_with { - cmd.env("CLANG", clang); - } - - if let Some(ref filecheck) = self.config.llvm_filecheck { - cmd.env("LLVM_FILECHECK", filecheck); - } - - if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir { - cmd.env("LLVM_BIN_DIR", llvm_bin_dir); - } - - if let Some(ref remote_test_client) = self.config.remote_test_client { - cmd.env("REMOTE_TEST_CLIENT", remote_test_client); - } - - // We don't want RUSTFLAGS set from the outside to interfere with - // compiler flags set in the test cases: - cmd.env_remove("RUSTFLAGS"); - - // Use dynamic musl for tests because static doesn't allow creating dylibs - if self.config.host.contains("musl") { - cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1"); - } - - if self.config.bless { - cmd.env("RUSTC_BLESS_TEST", "--bless"); - // Assume this option is active if the environment variable is "defined", with _any_ value. - // As an example, a `Makefile` can use this option by: - // - // ifdef RUSTC_BLESS_TEST - // cp "$(TMPDIR)"/actual_something.ext expected_something.ext - // else - // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext - // endif - } - - if self.config.target.contains("msvc") && !self.config.cc.is_empty() { - // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe` - // and that `lib.exe` lives next to it. - let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe"); - - // MSYS doesn't like passing flags of the form `/foo` as it thinks it's - // a path and instead passes `C:\msys64\foo`, so convert all - // `/`-arguments to MSVC here to `-` arguments. - let cflags = self - .config - .cflags - .split(' ') - .map(|s| s.replace("/", "-")) - .collect::>() - .join(" "); - let cxxflags = self - .config - .cxxflags - .split(' ') - .map(|s| s.replace("/", "-")) - .collect::>() - .join(" "); - - cmd.env("IS_MSVC", "1") - .env("IS_WINDOWS", "1") - .env("MSVC_LIB", format!("'{}' -nologo", lib.display())) - .env("MSVC_LIB_PATH", format!("{}", lib.display())) - .env("CC", format!("'{}' {}", self.config.cc, cflags)) - .env("CXX", format!("'{}' {}", &self.config.cxx, cxxflags)); - } else { - cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags)) - .env("CXX", format!("{} {}", self.config.cxx, self.config.cxxflags)) - .env("AR", &self.config.ar); - - if self.config.target.contains("windows") { - cmd.env("IS_WINDOWS", "1"); - } - } - - let (output, truncated) = - self.read2_abbreviated(cmd.spawn().expect("failed to spawn `make`")); - if !output.status.success() { - let res = ProcRes { - status: output.status, - stdout: String::from_utf8_lossy(&output.stdout).into_owned(), - stderr: String::from_utf8_lossy(&output.stderr).into_owned(), - truncated, - cmdline: format!("{:?}", cmd), - }; - self.fatal_proc_rec("make failed", &res); - } - } - - fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> { - for e in path.read_dir()? { - let entry = e?; - let path = entry.path(); - if entry.file_type()?.is_dir() { - self.aggressive_rm_rf(&path)?; - } else { - // Remove readonly files as well on windows (by default we can't) - fs::remove_file(&path).or_else(|e| { - if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied { - let mut meta = entry.metadata()?.permissions(); - meta.set_readonly(false); - fs::set_permissions(&path, meta)?; - fs::remove_file(&path) - } else { - Err(e) - } - })?; - } - } - fs::remove_dir(path) - } - - fn run_rmake_v2_test(&self) { - // For `run-make` V2, we need to perform 2 steps to build and run a `run-make` V2 recipe - // (`rmake.rs`) to run the actual tests. The support library is already built as a tool rust - // library and is available under `build/$TARGET/stageN-tools-bin/librun_make_support.rlib`. - // - // 1. We need to build the recipe `rmake.rs` as a binary and link in the `run_make_support` - // library. - // 2. We need to run the recipe binary. - - // So we assume the rust-lang/rust project setup looks like the following (our `.` is the - // top-level directory, irrelevant entries to our purposes omitted): - // - // ``` - // . // <- `source_root` - // ├── build/ // <- `build_root` - // ├── compiler/ - // ├── library/ - // ├── src/ - // │ └── tools/ - // │ └── run_make_support/ - // └── tests - // └── run-make/ - // ``` - - // `source_root` is the top-level directory containing the rust-lang/rust checkout. - let source_root = - self.config.find_rust_src_root().expect("could not determine rust source root"); - // `self.config.build_base` is actually the build base folder + "test" + test suite name, it - // looks like `build//test/run-make`. But we want `build//`. Note - // that the `build` directory does not need to be called `build`, nor does it need to be - // under `source_root`, so we must compute it based off of `self.config.build_base`. - let build_root = - self.config.build_base.parent().and_then(Path::parent).unwrap().to_path_buf(); - - // We construct the following directory tree for each rmake.rs test: - // ``` - // / - // rmake.exe - // rmake_out/ - // ``` - // having the recipe executable separate from the output artifacts directory allows the - // recipes to `remove_dir_all($TMPDIR)` without running into issues related trying to remove - // a currently running executable because the recipe executable is not under the - // `rmake_out/` directory. - // - // This setup intentionally diverges from legacy Makefile run-make tests. - let base_dir = self.output_base_name(); - if base_dir.exists() { - self.aggressive_rm_rf(&base_dir).unwrap(); - } - let rmake_out_dir = base_dir.join("rmake_out"); - create_dir_all(&rmake_out_dir).unwrap(); - - // Copy all input files (apart from rmake.rs) to the temporary directory, - // so that the input directory structure from `tests/run-make/` is mirrored - // to the `rmake_out` directory. - for path in walkdir::WalkDir::new(&self.testpaths.file).min_depth(1) { - let path = path.unwrap().path().to_path_buf(); - if path.file_name().is_some_and(|s| s != "rmake.rs") { - let target = rmake_out_dir.join(path.strip_prefix(&self.testpaths.file).unwrap()); - if path.is_dir() { - copy_dir_all(&path, target).unwrap(); - } else { - fs::copy(&path, target).unwrap(); - } - } - } - - // `self.config.stage_id` looks like `stage1-`, but we only want - // the `stage1` part as that is what the output directories of bootstrap are prefixed with. - // Note that this *assumes* build layout from bootstrap is produced as: - // - // ``` - // build// // <- this is `build_root` - // ├── stage0 - // ├── stage0-bootstrap-tools - // ├── stage0-codegen - // ├── stage0-rustc - // ├── stage0-std - // ├── stage0-sysroot - // ├── stage0-tools - // ├── stage0-tools-bin - // ├── stage1 - // ├── stage1-std - // ├── stage1-tools - // ├── stage1-tools-bin - // └── test - // ``` - // FIXME(jieyouxu): improve the communication between bootstrap and compiletest here so - // we don't have to hack out a `stageN`. - let stage = self.config.stage_id.split('-').next().unwrap(); - - // In order to link in the support library as a rlib when compiling recipes, we need three - // paths: - // 1. Path of the built support library rlib itself. - // 2. Path of the built support library's dependencies directory. - // 3. Path of the built support library's dependencies' dependencies directory. - // - // The paths look like - // - // ``` - // build// - // ├── stageN-tools-bin/ - // │ └── librun_make_support.rlib // <- support rlib itself - // ├── stageN-tools/ - // │ ├── release/deps/ // <- deps of deps - // │ └── /release/deps/ // <- deps - // ``` - // - // FIXME(jieyouxu): there almost certainly is a better way to do this (specifically how the - // support lib and its deps are organized, can't we copy them to the tools-bin dir as - // well?), but this seems to work for now. - - let stage_tools_bin = build_root.join(format!("{stage}-tools-bin")); - let support_lib_path = stage_tools_bin.join("librun_make_support.rlib"); - - let stage_tools = build_root.join(format!("{stage}-tools")); - let support_lib_deps = stage_tools.join(&self.config.host).join("release").join("deps"); - let support_lib_deps_deps = stage_tools.join("release").join("deps"); - - // To compile the recipe with rustc, we need to provide suitable dynamic library search - // paths to rustc. This includes both: - // 1. The "base" dylib search paths that was provided to compiletest, e.g. `LD_LIBRARY_PATH` - // on some linux distros. - // 2. Specific library paths in `self.config.compile_lib_path` needed for running rustc. - - let base_dylib_search_paths = - Vec::from_iter(env::split_paths(&env::var(dylib_env_var()).unwrap())); - - let host_dylib_search_paths = { - let mut paths = vec![self.config.compile_lib_path.clone()]; - paths.extend(base_dylib_search_paths.iter().cloned()); - paths - }; - - // Calculate the paths of the recipe binary. As previously discussed, this is placed at - // `/` with `bin_name` being `rmake` or `rmake.exe` depending on - // platform. - let recipe_bin = { - let mut p = base_dir.join("rmake"); - p.set_extension(env::consts::EXE_EXTENSION); - p - }; - - let mut rustc = Command::new(&self.config.rustc_path); - rustc - .arg("-o") - .arg(&recipe_bin) - // Specify library search paths for `run_make_support`. - .arg(format!("-Ldependency={}", &support_lib_path.parent().unwrap().to_string_lossy())) - .arg(format!("-Ldependency={}", &support_lib_deps.to_string_lossy())) - .arg(format!("-Ldependency={}", &support_lib_deps_deps.to_string_lossy())) - // Provide `run_make_support` as extern prelude, so test writers don't need to write - // `extern run_make_support;`. - .arg("--extern") - .arg(format!("run_make_support={}", &support_lib_path.to_string_lossy())) - .arg("--edition=2021") - .arg(&self.testpaths.file.join("rmake.rs")) - // Provide necessary library search paths for rustc. - .env(dylib_env_var(), &env::join_paths(host_dylib_search_paths).unwrap()); - - // In test code we want to be very pedantic about values being silently discarded that are - // annotated with `#[must_use]`. - rustc.arg("-Dunused_must_use"); - - // > `cg_clif` uses `COMPILETEST_FORCE_STAGE0=1 ./x.py test --stage 0` for running the rustc - // > test suite. With the introduction of rmake.rs this broke. `librun_make_support.rlib` is - // > compiled using the bootstrap rustc wrapper which sets `--sysroot - // > build/aarch64-unknown-linux-gnu/stage0-sysroot`, but then compiletest will compile - // > `rmake.rs` using the sysroot of the bootstrap compiler causing it to not find the - // > `libstd.rlib` against which `librun_make_support.rlib` is compiled. - // - // The gist here is that we have to pass the proper stage0 sysroot if we want - // - // ``` - // $ COMPILETEST_FORCE_STAGE0=1 ./x test run-make --stage 0 - // ``` - // - // to work correctly. - // - // See for more background. - if std::env::var_os("COMPILETEST_FORCE_STAGE0").is_some() { - let stage0_sysroot = build_root.join("stage0-sysroot"); - rustc.arg("--sysroot").arg(&stage0_sysroot); - } - - // Now run rustc to build the recipe. - let res = self.run_command_to_procres(&mut rustc); - if !res.status.success() { - self.fatal_proc_rec("run-make test failed: could not build `rmake.rs` recipe", &res); - } - - // To actually run the recipe, we have to provide the recipe with a bunch of information - // provided through env vars. - - // Compute stage-specific standard library paths. - let stage_std_path = build_root.join(&stage).join("lib"); - - // Compute dynamic library search paths for recipes. - let recipe_dylib_search_paths = { - let mut paths = base_dylib_search_paths.clone(); - paths.push(support_lib_path.parent().unwrap().to_path_buf()); - paths.push(stage_std_path.join("rustlib").join(&self.config.host).join("lib")); - paths - }; - - // Compute runtime library search paths for recipes. This is target-specific. - let target_runtime_dylib_search_paths = { - let mut paths = vec![rmake_out_dir.clone()]; - paths.extend(base_dylib_search_paths.iter().cloned()); - paths - }; - - // FIXME(jieyouxu): please rename `TARGET_RPATH_ENV`, `HOST_RPATH_DIR` and - // `TARGET_RPATH_DIR`, it is **extremely** confusing! - let mut cmd = Command::new(&recipe_bin); - cmd.current_dir(&rmake_out_dir) - .stdout(Stdio::piped()) - .stderr(Stdio::piped()) - // Provide the target-specific env var that is used to record dylib search paths. For - // example, this could be `LD_LIBRARY_PATH` on some linux distros but `PATH` on Windows. - .env("LD_LIB_PATH_ENVVAR", dylib_env_var()) - // Provide the dylib search paths. - .env(dylib_env_var(), &env::join_paths(recipe_dylib_search_paths).unwrap()) - // Provide runtime dylib search paths. - .env("TARGET_RPATH_ENV", &env::join_paths(target_runtime_dylib_search_paths).unwrap()) - // Provide the target. - .env("TARGET", &self.config.target) - // Some tests unfortunately still need Python, so provide path to a Python interpreter. - .env("PYTHON", &self.config.python) - // Provide path to checkout root. This is the top-level directory containing - // rust-lang/rust checkout. - .env("SOURCE_ROOT", &source_root) - // Provide path to stage-corresponding rustc. - .env("RUSTC", &self.config.rustc_path) - // Provide the directory to libraries that are needed to run the *compiler*. This is not - // to be confused with `TARGET_RPATH_ENV` or `TARGET_RPATH_DIR`. This is needed if the - // recipe wants to invoke rustc. - .env("HOST_RPATH_DIR", &self.config.compile_lib_path) - // Provide the directory to libraries that might be needed to run compiled binaries - // (further compiled by the recipe!). - .env("TARGET_RPATH_DIR", &self.config.run_lib_path) - // Provide which LLVM components are available (e.g. which LLVM components are provided - // through a specific CI runner). - .env("LLVM_COMPONENTS", &self.config.llvm_components); - - if let Some(ref rustdoc) = self.config.rustdoc_path { - cmd.env("RUSTDOC", source_root.join(rustdoc)); - } - - if let Some(ref node) = self.config.nodejs { - cmd.env("NODE", node); - } - - if let Some(ref linker) = self.config.target_linker { - cmd.env("RUSTC_LINKER", linker); - } - - if let Some(ref clang) = self.config.run_clang_based_tests_with { - cmd.env("CLANG", clang); - } - - if let Some(ref filecheck) = self.config.llvm_filecheck { - cmd.env("LLVM_FILECHECK", filecheck); - } - - if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir { - cmd.env("LLVM_BIN_DIR", llvm_bin_dir); - } - - if let Some(ref remote_test_client) = self.config.remote_test_client { - cmd.env("REMOTE_TEST_CLIENT", remote_test_client); - } - - // We don't want RUSTFLAGS set from the outside to interfere with - // compiler flags set in the test cases: - cmd.env_remove("RUSTFLAGS"); - - // Use dynamic musl for tests because static doesn't allow creating dylibs - if self.config.host.contains("musl") { - cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1"); - } - - if self.config.bless { - // If we're running in `--bless` mode, set an environment variable to tell - // `run_make_support` to bless snapshot files instead of checking them. - // - // The value is this test's source directory, because the support code - // will need that path in order to bless the _original_ snapshot files, - // not the copies in `rmake_out`. - // (See .) - cmd.env("RUSTC_BLESS_TEST", &self.testpaths.file); - } - - if self.config.target.contains("msvc") && !self.config.cc.is_empty() { - // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe` - // and that `lib.exe` lives next to it. - let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe"); - - // MSYS doesn't like passing flags of the form `/foo` as it thinks it's - // a path and instead passes `C:\msys64\foo`, so convert all - // `/`-arguments to MSVC here to `-` arguments. - let cflags = self - .config - .cflags - .split(' ') - .map(|s| s.replace("/", "-")) - .collect::>() - .join(" "); - let cxxflags = self - .config - .cxxflags - .split(' ') - .map(|s| s.replace("/", "-")) - .collect::>() - .join(" "); - - cmd.env("IS_MSVC", "1") - .env("IS_WINDOWS", "1") - .env("MSVC_LIB", format!("'{}' -nologo", lib.display())) - .env("MSVC_LIB_PATH", format!("{}", lib.display())) - // Note: we diverge from legacy run_make and don't lump `CC` the compiler and - // default flags together. - .env("CC_DEFAULT_FLAGS", &cflags) - .env("CC", &self.config.cc) - .env("CXX_DEFAULT_FLAGS", &cxxflags) - .env("CXX", &self.config.cxx); - } else { - cmd.env("CC_DEFAULT_FLAGS", &self.config.cflags) - .env("CC", &self.config.cc) - .env("CXX_DEFAULT_FLAGS", &self.config.cxxflags) - .env("CXX", &self.config.cxx) - .env("AR", &self.config.ar); - - if self.config.target.contains("windows") { - cmd.env("IS_WINDOWS", "1"); - } - } - - let (Output { stdout, stderr, status }, truncated) = - self.read2_abbreviated(cmd.spawn().expect("failed to spawn `rmake`")); - if !status.success() { - let res = ProcRes { - status, - stdout: String::from_utf8_lossy(&stdout).into_owned(), - stderr: String::from_utf8_lossy(&stderr).into_owned(), - truncated, - cmdline: format!("{:?}", cmd), - }; - self.fatal_proc_rec("rmake recipe failed to complete", &res); - } - } - - fn run_js_doc_test(&self) { - if let Some(nodejs) = &self.config.nodejs { - let out_dir = self.output_base_dir(); - - self.document(&out_dir, &self.testpaths); - - let root = self.config.find_rust_src_root().unwrap(); - let file_stem = - self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem"); - let res = self.run_command_to_procres( - Command::new(&nodejs) - .arg(root.join("src/tools/rustdoc-js/tester.js")) - .arg("--doc-folder") - .arg(out_dir) - .arg("--crate-name") - .arg(file_stem.replace("-", "_")) - .arg("--test-file") - .arg(self.testpaths.file.with_extension("js")), - ); - if !res.status.success() { - self.fatal_proc_rec("rustdoc-js test failed!", &res); - } - } else { - self.fatal("no nodeJS"); - } - } - fn force_color_svg(&self) -> bool { self.props.compile_flags.iter().any(|s| s.contains("--color=always")) } @@ -3895,377 +2258,6 @@ impl<'test> TestCx<'test> { errors } - fn run_ui_test(&self) { - if let Some(FailMode::Build) = self.props.fail_mode { - // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck). - let pm = Some(PassMode::Check); - let proc_res = - self.compile_test_general(WillExecute::No, Emit::Metadata, pm, Vec::new()); - self.check_if_test_should_compile(&proc_res, pm); - } - - let pm = self.pass_mode(); - let should_run = self.should_run(pm); - let emit_metadata = self.should_emit_metadata(pm); - let proc_res = self.compile_test(should_run, emit_metadata); - self.check_if_test_should_compile(&proc_res, pm); - if matches!(proc_res.truncated, Truncated::Yes) - && !self.props.dont_check_compiler_stdout - && !self.props.dont_check_compiler_stderr - { - self.fatal_proc_rec( - "compiler output got truncated, cannot compare with reference file", - &proc_res, - ); - } - - // if the user specified a format in the ui test - // print the output to the stderr file, otherwise extract - // the rendered error messages from json and print them - let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format")); - - let expected_fixed = self.load_expected_output(UI_FIXED); - - self.check_and_prune_duplicate_outputs(&proc_res, &[], &[]); - - let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit); - let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr); - - if self.config.compare_mode.is_some() { - // don't test rustfix with nll right now - } else if self.config.rustfix_coverage { - // Find out which tests have `MachineApplicable` suggestions but are missing - // `run-rustfix` or `run-rustfix-only-machine-applicable` headers. - // - // This will return an empty `Vec` in case the executed test file has a - // `compile-flags: --error-format=xxxx` header with a value other than `json`. - let suggestions = get_suggestions_from_json( - &rustfix_input, - &HashSet::new(), - Filter::MachineApplicableOnly, - ) - .unwrap_or_default(); - if !suggestions.is_empty() - && !self.props.run_rustfix - && !self.props.rustfix_only_machine_applicable - { - let mut coverage_file_path = self.config.build_base.clone(); - coverage_file_path.push("rustfix_missing_coverage.txt"); - debug!("coverage_file_path: {}", coverage_file_path.display()); - - let mut file = OpenOptions::new() - .create(true) - .append(true) - .open(coverage_file_path.as_path()) - .expect("could not create or open file"); - - if let Err(e) = writeln!(file, "{}", self.testpaths.file.display()) { - panic!("couldn't write to {}: {e:?}", coverage_file_path.display()); - } - } - } else if self.props.run_rustfix { - // Apply suggestions from rustc to the code itself - let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap(); - let suggestions = get_suggestions_from_json( - &rustfix_input, - &HashSet::new(), - if self.props.rustfix_only_machine_applicable { - Filter::MachineApplicableOnly - } else { - Filter::Everything - }, - ) - .unwrap(); - let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|e| { - panic!( - "failed to apply suggestions for {:?} with rustfix: {}", - self.testpaths.file, e - ) - }); - - errors += self.compare_output("fixed", &fixed_code, &expected_fixed); - } else if !expected_fixed.is_empty() { - panic!( - "the `//@ run-rustfix` directive wasn't found but a `*.fixed` \ - file was found" - ); - } - - if errors > 0 { - println!("To update references, rerun the tests and pass the `--bless` flag"); - let relative_path_to_file = - self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap()); - println!( - "To only update this specific test, also pass `--test-args {}`", - relative_path_to_file.display(), - ); - self.fatal_proc_rec( - &format!("{} errors occurred comparing output.", errors), - &proc_res, - ); - } - - let expected_errors = errors::load_errors(&self.testpaths.file, self.revision); - - if let WillExecute::Yes = should_run { - let proc_res = self.exec_compiled_test(); - let run_output_errors = if self.props.check_run_results { - self.load_compare_outputs(&proc_res, TestOutput::Run, explicit) - } else { - 0 - }; - if run_output_errors > 0 { - self.fatal_proc_rec( - &format!("{} errors occurred comparing run output.", run_output_errors), - &proc_res, - ); - } - if self.should_run_successfully(pm) { - if !proc_res.status.success() { - self.fatal_proc_rec("test run failed!", &proc_res); - } - } else if proc_res.status.success() { - self.fatal_proc_rec("test run succeeded!", &proc_res); - } - - if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty() - { - // "// error-pattern" comments - let output_to_check = self.get_output(&proc_res); - self.check_all_error_patterns(&output_to_check, &proc_res, pm); - } - } - - debug!( - "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \ - proc_res.status={:?} props.error_patterns={:?}", - explicit, - self.config.compare_mode, - expected_errors, - proc_res.status, - self.props.error_patterns - ); - - let check_patterns = should_run == WillExecute::No - && (!self.props.error_patterns.is_empty() - || !self.props.regex_error_patterns.is_empty()); - if !explicit && self.config.compare_mode.is_none() { - let check_annotations = !check_patterns || !expected_errors.is_empty(); - - if check_annotations { - // "//~ERROR comments" - self.check_expected_errors(expected_errors, &proc_res); - } - } else if explicit && !expected_errors.is_empty() { - let msg = format!( - "line {}: cannot combine `--error-format` with {} annotations; use `error-pattern` instead", - expected_errors[0].line_num, - expected_errors[0].kind.unwrap_or(ErrorKind::Error), - ); - self.fatal(&msg); - } - if check_patterns { - // "// error-pattern" comments - let output_to_check = self.get_output(&proc_res); - self.check_all_error_patterns(&output_to_check, &proc_res, pm); - } - - if self.props.run_rustfix && self.config.compare_mode.is_none() { - // And finally, compile the fixed code and make sure it both - // succeeds and has no diagnostics. - let mut rustc = self.make_compile_args( - &self.expected_output_path(UI_FIXED), - TargetLocation::ThisFile(self.make_exe_name()), - emit_metadata, - AllowUnused::No, - LinkToAux::Yes, - Vec::new(), - ); - - // If a test is revisioned, it's fixed source file can be named "a.foo.fixed", which, - // well, "a.foo" isn't a valid crate name. So we explicitly mangle the test name - // (including the revision) here to avoid the test writer having to manually specify a - // `#![crate_name = "..."]` as a workaround. This is okay since we're only checking if - // the fixed code is compilable. - if self.revision.is_some() { - let crate_name = - self.testpaths.file.file_stem().expect("test must have a file stem"); - // crate name must be alphanumeric or `_`. - let crate_name = - crate_name.to_str().expect("crate name implies file name must be valid UTF-8"); - // replace `a.foo` -> `a__foo` for crate name purposes. - // replace `revision-name-with-dashes` -> `revision_name_with_underscore` - let crate_name = crate_name.replace('.', "__"); - let crate_name = crate_name.replace('-', "_"); - rustc.arg("--crate-name"); - rustc.arg(crate_name); - } - - let res = self.compose_and_run_compiler(rustc, None, self.testpaths); - if !res.status.success() { - self.fatal_proc_rec("failed to compile fixed code", &res); - } - if !res.stderr.is_empty() - && !self.props.rustfix_only_machine_applicable - && !json::rustfix_diagnostics_only(&res.stderr).is_empty() - { - self.fatal_proc_rec("fixed code is still producing diagnostics", &res); - } - } - } - - fn run_mir_opt_test(&self) { - let pm = self.pass_mode(); - let should_run = self.should_run(pm); - - let mut test_info = files_for_miropt_test( - &self.testpaths.file, - self.config.get_pointer_width(), - self.config.target_cfg().panic.for_miropt_test_tools(), - ); - - let passes = std::mem::take(&mut test_info.passes); - - let proc_res = self.compile_test_with_passes(should_run, Emit::Mir, passes); - if !proc_res.status.success() { - self.fatal_proc_rec("compilation failed!", &proc_res); - } - self.check_mir_dump(test_info); - - if let WillExecute::Yes = should_run { - let proc_res = self.exec_compiled_test(); - - if !proc_res.status.success() { - self.fatal_proc_rec("test run failed!", &proc_res); - } - } - } - - fn check_mir_dump(&self, test_info: MiroptTest) { - let test_dir = self.testpaths.file.parent().unwrap(); - let test_crate = - self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace('-', "_"); - - let MiroptTest { run_filecheck, suffix, files, passes: _ } = test_info; - - if self.config.bless { - for e in - glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, suffix)).unwrap() - { - std::fs::remove_file(e.unwrap()).unwrap(); - } - for e in - glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, suffix)).unwrap() - { - std::fs::remove_file(e.unwrap()).unwrap(); - } - } - - for MiroptTestFile { from_file, to_file, expected_file } in files { - let dumped_string = if let Some(after) = to_file { - self.diff_mir_files(from_file.into(), after.into()) - } else { - let mut output_file = PathBuf::new(); - output_file.push(self.get_mir_dump_dir()); - output_file.push(&from_file); - debug!( - "comparing the contents of: {} with {}", - output_file.display(), - expected_file.display() - ); - if !output_file.exists() { - panic!( - "Output file `{}` from test does not exist, available files are in `{}`", - output_file.display(), - output_file.parent().unwrap().display() - ); - } - self.check_mir_test_timestamp(&from_file, &output_file); - let dumped_string = fs::read_to_string(&output_file).unwrap(); - self.normalize_output(&dumped_string, &[]) - }; - - if self.config.bless { - let _ = std::fs::remove_file(&expected_file); - std::fs::write(expected_file, dumped_string.as_bytes()).unwrap(); - } else { - if !expected_file.exists() { - panic!("Output file `{}` from test does not exist", expected_file.display()); - } - let expected_string = fs::read_to_string(&expected_file).unwrap(); - if dumped_string != expected_string { - print!("{}", write_diff(&expected_string, &dumped_string, 3)); - panic!( - "Actual MIR output differs from expected MIR output {}", - expected_file.display() - ); - } - } - } - - if run_filecheck { - let output_path = self.output_base_name().with_extension("mir"); - let proc_res = self.verify_with_filecheck(&output_path); - if !proc_res.status.success() { - self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res); - } - } - } - - fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String { - let to_full_path = |path: PathBuf| { - let full = self.get_mir_dump_dir().join(&path); - if !full.exists() { - panic!( - "the mir dump file for {} does not exist (requested in {})", - path.display(), - self.testpaths.file.display(), - ); - } - full - }; - let before = to_full_path(before); - let after = to_full_path(after); - debug!("comparing the contents of: {} with {}", before.display(), after.display()); - let before = fs::read_to_string(before).unwrap(); - let after = fs::read_to_string(after).unwrap(); - let before = self.normalize_output(&before, &[]); - let after = self.normalize_output(&after, &[]); - let mut dumped_string = String::new(); - for result in diff::lines(&before, &after) { - use std::fmt::Write; - match result { - diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(), - diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(), - diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(), - } - } - dumped_string - } - - fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) { - let t = |file| fs::metadata(file).unwrap().modified().unwrap(); - let source_file = &self.testpaths.file; - let output_time = t(output_file); - let source_time = t(source_file); - if source_time > output_time { - debug!("source file time: {:?} output file time: {:?}", source_time, output_time); - panic!( - "test source file `{}` is newer than potentially stale output file `{}`.", - source_file.display(), - test_name - ); - } - } - - fn get_mir_dump_dir(&self) -> PathBuf { - let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path()); - debug!("input_file: {:?}", self.testpaths.file); - mir_dump_dir.push(&self.testpaths.relative_dir); - mir_dump_dir.push(self.testpaths.file.file_stem().unwrap()); - mir_dump_dir - } - fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String { // Crude heuristic to detect when the output should have JSON-specific // normalization steps applied. @@ -4634,6 +2626,77 @@ impl<'test> TestCx<'test> { let stamp = crate::stamp(&self.config, self.testpaths, self.revision); fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap(); } + + fn init_incremental_test(&self) { + // (See `run_incremental_test` for an overview of how incremental tests work.) + + // Before any of the revisions have executed, create the + // incremental workproduct directory. Delete any old + // incremental work products that may be there from prior + // runs. + let incremental_dir = self.props.incremental_dir.as_ref().unwrap(); + if incremental_dir.exists() { + // Canonicalizing the path will convert it to the //?/ format + // on Windows, which enables paths longer than 260 character + let canonicalized = incremental_dir.canonicalize().unwrap(); + fs::remove_dir_all(canonicalized).unwrap(); + } + fs::create_dir_all(&incremental_dir).unwrap(); + + if self.config.verbose { + println!("init_incremental_test: incremental_dir={}", incremental_dir.display()); + } + } + + // FIXME(jieyouxu): `run_rpass_test` is hoisted out here and not in incremental because + // apparently valgrind test falls back to `run_rpass_test` if valgrind isn't available, which + // seems highly questionable to me. + fn run_rpass_test(&self) { + let emit_metadata = self.should_emit_metadata(self.pass_mode()); + let should_run = self.run_if_enabled(); + let proc_res = self.compile_test(should_run, emit_metadata); + + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + // FIXME(#41968): Move this check to tidy? + if !errors::load_errors(&self.testpaths.file, self.revision).is_empty() { + self.fatal("run-pass tests with expected warnings should be moved to ui/"); + } + + if let WillExecute::Disabled = should_run { + return; + } + + let proc_res = self.exec_compiled_test(); + if !proc_res.status.success() { + self.fatal_proc_rec("test run failed!", &proc_res); + } + } + + fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> { + for e in path.read_dir()? { + let entry = e?; + let path = entry.path(); + if entry.file_type()?.is_dir() { + self.aggressive_rm_rf(&path)?; + } else { + // Remove readonly files as well on windows (by default we can't) + fs::remove_file(&path).or_else(|e| { + if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied { + let mut meta = entry.metadata()?.permissions(); + meta.set_readonly(false); + fs::set_permissions(&path, meta)?; + fs::remove_file(&path) + } else { + Err(e) + } + })?; + } + } + fs::remove_dir(path) + } } struct ProcArgs { diff --git a/src/tools/compiletest/src/runtest/assembly.rs b/src/tools/compiletest/src/runtest/assembly.rs new file mode 100644 index 0000000000000..430a5534da1fd --- /dev/null +++ b/src/tools/compiletest/src/runtest/assembly.rs @@ -0,0 +1,19 @@ +use super::TestCx; + +impl TestCx<'_> { + pub(super) fn run_assembly_test(&self) { + if self.config.llvm_filecheck.is_none() { + self.fatal("missing --llvm-filecheck"); + } + + let (proc_res, output_path) = self.compile_test_and_save_assembly(); + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + let proc_res = self.verify_with_filecheck(&output_path); + if !proc_res.status.success() { + self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res); + } + } +} diff --git a/src/tools/compiletest/src/runtest/codegen.rs b/src/tools/compiletest/src/runtest/codegen.rs new file mode 100644 index 0000000000000..6e61ab5e46d66 --- /dev/null +++ b/src/tools/compiletest/src/runtest/codegen.rs @@ -0,0 +1,22 @@ +use super::{PassMode, TestCx}; + +impl TestCx<'_> { + pub(super) fn run_codegen_test(&self) { + if self.config.llvm_filecheck.is_none() { + self.fatal("missing --llvm-filecheck"); + } + + let (proc_res, output_path) = self.compile_test_and_save_ir(); + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + if let Some(PassMode::Build) = self.pass_mode() { + return; + } + let proc_res = self.verify_with_filecheck(&output_path); + if !proc_res.status.success() { + self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res); + } + } +} diff --git a/src/tools/compiletest/src/runtest/codegen_units.rs b/src/tools/compiletest/src/runtest/codegen_units.rs new file mode 100644 index 0000000000000..6c866cbef21ab --- /dev/null +++ b/src/tools/compiletest/src/runtest/codegen_units.rs @@ -0,0 +1,191 @@ +use std::collections::HashSet; + +use super::{Emit, TestCx, WillExecute}; +use crate::errors; +use crate::util::static_regex; + +impl TestCx<'_> { + pub(super) fn run_codegen_units_test(&self) { + assert!(self.revision.is_none(), "revisions not relevant here"); + + let proc_res = self.compile_test(WillExecute::No, Emit::None); + + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + self.check_no_compiler_crash(&proc_res, self.props.should_ice); + + const PREFIX: &str = "MONO_ITEM "; + const CGU_MARKER: &str = "@@"; + + // Some MonoItems can contain {closure@/path/to/checkout/tests/codgen-units/test.rs} + // To prevent the current dir from leaking, we just replace the entire path to the test + // file with TEST_PATH. + let actual: Vec = proc_res + .stdout + .lines() + .filter(|line| line.starts_with(PREFIX)) + .map(|line| { + line.replace(&self.testpaths.file.display().to_string(), "TEST_PATH").to_string() + }) + .map(|line| str_to_mono_item(&line, true)) + .collect(); + + let expected: Vec = errors::load_errors(&self.testpaths.file, None) + .iter() + .map(|e| str_to_mono_item(&e.msg[..], false)) + .collect(); + + let mut missing = Vec::new(); + let mut wrong_cgus = Vec::new(); + + for expected_item in &expected { + let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name); + + if let Some(actual_item) = actual_item_with_same_name { + if !expected_item.codegen_units.is_empty() && + // Also check for codegen units + expected_item.codegen_units != actual_item.codegen_units + { + wrong_cgus.push((expected_item.clone(), actual_item.clone())); + } + } else { + missing.push(expected_item.string.clone()); + } + } + + let unexpected: Vec<_> = actual + .iter() + .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name)) + .map(|acgu| acgu.string.clone()) + .collect(); + + if !missing.is_empty() { + missing.sort(); + + println!("\nThese items should have been contained but were not:\n"); + + for item in &missing { + println!("{}", item); + } + + println!("\n"); + } + + if !unexpected.is_empty() { + let sorted = { + let mut sorted = unexpected.clone(); + sorted.sort(); + sorted + }; + + println!("\nThese items were contained but should not have been:\n"); + + for item in sorted { + println!("{}", item); + } + + println!("\n"); + } + + if !wrong_cgus.is_empty() { + wrong_cgus.sort_by_key(|pair| pair.0.name.clone()); + println!("\nThe following items were assigned to wrong codegen units:\n"); + + for &(ref expected_item, ref actual_item) in &wrong_cgus { + println!("{}", expected_item.name); + println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units)); + println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units)); + println!(); + } + } + + if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) { + panic!(); + } + + #[derive(Clone, Eq, PartialEq)] + struct MonoItem { + name: String, + codegen_units: HashSet, + string: String, + } + + // [MONO_ITEM] name [@@ (cgu)+] + fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem { + let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() }; + + let full_string = format!("{}{}", PREFIX, s); + + let parts: Vec<&str> = + s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect(); + + let name = parts[0].trim(); + + let cgus = if parts.len() > 1 { + let cgus_str = parts[1]; + + cgus_str + .split(' ') + .map(str::trim) + .filter(|s| !s.is_empty()) + .map(|s| { + if cgu_has_crate_disambiguator { + remove_crate_disambiguators_from_set_of_cgu_names(s) + } else { + s.to_string() + } + }) + .collect() + } else { + HashSet::new() + }; + + MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string } + } + + fn codegen_units_to_str(cgus: &HashSet) -> String { + let mut cgus: Vec<_> = cgus.iter().collect(); + cgus.sort(); + + let mut string = String::new(); + for cgu in cgus { + string.push_str(&cgu[..]); + string.push(' '); + } + + string + } + + // Given a cgu-name-prefix of the form . or + // the form .-in-., + // remove all crate-disambiguators. + fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String { + let Some(captures) = + static_regex!(r"^[^\.]+(?P\.[[:alnum:]]+)(-in-[^\.]+(?P\.[[:alnum:]]+))?") + .captures(cgu) + else { + panic!("invalid cgu name encountered: {cgu}"); + }; + + let mut new_name = cgu.to_owned(); + + if let Some(d2) = captures.name("d2") { + new_name.replace_range(d2.start()..d2.end(), ""); + } + + let d1 = captures.name("d1").unwrap(); + new_name.replace_range(d1.start()..d1.end(), ""); + + new_name + } + + // The name of merged CGUs is constructed as the names of the original + // CGUs joined with "--". This function splits such composite CGU names + // and handles each component individually. + fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String { + cgus.split("--").map(remove_crate_disambiguator_from_cgu).collect::>().join("--") + } + } +} diff --git a/src/tools/compiletest/src/runtest/coverage.rs b/src/tools/compiletest/src/runtest/coverage.rs index 05191a159801c..961a160298631 100644 --- a/src/tools/compiletest/src/runtest/coverage.rs +++ b/src/tools/compiletest/src/runtest/coverage.rs @@ -18,7 +18,7 @@ impl<'test> TestCx<'test> { .unwrap_or_else(|| self.fatal("missing --coverage-dump")) } - pub(crate) fn run_coverage_map_test(&self) { + pub(super) fn run_coverage_map_test(&self) { let coverage_dump_path = self.coverage_dump_path(); let (proc_res, llvm_ir_path) = self.compile_test_and_save_ir(); @@ -50,7 +50,7 @@ impl<'test> TestCx<'test> { } } - pub(crate) fn run_coverage_run_test(&self) { + pub(super) fn run_coverage_run_test(&self) { let should_run = self.run_if_enabled(); let proc_res = self.compile_test(should_run, Emit::None); diff --git a/src/tools/compiletest/src/runtest/crash.rs b/src/tools/compiletest/src/runtest/crash.rs new file mode 100644 index 0000000000000..7f2bec4949be7 --- /dev/null +++ b/src/tools/compiletest/src/runtest/crash.rs @@ -0,0 +1,25 @@ +use super::{TestCx, WillExecute}; + +impl TestCx<'_> { + pub(super) fn run_crash_test(&self) { + let pm = self.pass_mode(); + let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm)); + + if std::env::var("COMPILETEST_VERBOSE_CRASHES").is_ok() { + eprintln!("{}", proc_res.status); + eprintln!("{}", proc_res.stdout); + eprintln!("{}", proc_res.stderr); + eprintln!("{}", proc_res.cmdline); + } + + // if a test does not crash, consider it an error + if proc_res.status.success() || matches!(proc_res.status.code(), Some(1 | 0)) { + self.fatal(&format!( + "crashtest no longer crashes/triggers ICE, horray! Please give it a meaningful name, \ + add a doc-comment to the start of the test explaining why it exists and \ + move it to tests/ui or wherever you see fit. Adding 'Fixes #' to your PR description \ + ensures that the corresponding ticket is auto-closed upon merge." + )); + } + } +} diff --git a/src/tools/compiletest/src/runtest/debuginfo.rs b/src/tools/compiletest/src/runtest/debuginfo.rs new file mode 100644 index 0000000000000..36127414ab147 --- /dev/null +++ b/src/tools/compiletest/src/runtest/debuginfo.rs @@ -0,0 +1,509 @@ +use std::ffi::{OsStr, OsString}; +use std::fs::File; +use std::io::{BufRead, BufReader, Read}; +use std::path::Path; +use std::process::{Command, Output, Stdio}; + +use tracing::debug; + +use super::debugger::DebuggerCommands; +use super::{Debugger, Emit, ProcRes, TestCx, Truncated, WillExecute}; +use crate::common::Config; +use crate::util::logv; +use crate::{extract_gdb_version, is_android_gdb_target}; + +impl TestCx<'_> { + pub(super) fn run_debuginfo_test(&self) { + match self.config.debugger.unwrap() { + Debugger::Cdb => self.run_debuginfo_cdb_test(), + Debugger::Gdb => self.run_debuginfo_gdb_test(), + Debugger::Lldb => self.run_debuginfo_lldb_test(), + } + } + + fn run_debuginfo_cdb_test(&self) { + let config = Config { + target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags), + host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags), + ..self.config.clone() + }; + + let test_cx = TestCx { config: &config, ..*self }; + + test_cx.run_debuginfo_cdb_test_no_opt(); + } + + fn run_debuginfo_cdb_test_no_opt(&self) { + let exe_file = self.make_exe_name(); + + // Existing PDB files are update in-place. When changing the debuginfo + // the compiler generates for something, this can lead to the situation + // where both the old and the new version of the debuginfo for the same + // type is present in the PDB, which is very confusing. + // Therefore we delete any existing PDB file before compiling the test + // case. + // FIXME: If can reliably detect that MSVC's link.exe is used, then + // passing `/INCREMENTAL:NO` might be a cleaner way to do this. + let pdb_file = exe_file.with_extension(".pdb"); + if pdb_file.exists() { + std::fs::remove_file(pdb_file).unwrap(); + } + + // compile test file (it should have 'compile-flags:-g' in the header) + let should_run = self.run_if_enabled(); + let compile_result = self.compile_test(should_run, Emit::None); + if !compile_result.status.success() { + self.fatal_proc_rec("compilation failed!", &compile_result); + } + if let WillExecute::Disabled = should_run { + return; + } + + let prefixes = { + static PREFIXES: &[&str] = &["cdb", "cdbg"]; + // No "native rust support" variation for CDB yet. + PREFIXES + }; + + // Parse debugger commands etc from test files + let dbg_cmds = DebuggerCommands::parse_from( + &self.testpaths.file, + self.config, + prefixes, + self.revision, + ) + .unwrap_or_else(|e| self.fatal(&e)); + + // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands + let mut script_str = String::with_capacity(2048); + script_str.push_str("version\n"); // List CDB (and more) version info in test output + script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug + + // If a .js file exists next to the source file being tested, then this is a JavaScript + // debugging extension that needs to be loaded. + let mut js_extension = self.testpaths.file.clone(); + js_extension.set_extension("cdb.js"); + if js_extension.exists() { + script_str.push_str(&format!(".scriptload \"{}\"\n", js_extension.to_string_lossy())); + } + + // Set breakpoints on every line that contains the string "#break" + let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy(); + for line in &dbg_cmds.breakpoint_lines { + script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line)); + } + + // Append the other `cdb-command:`s + for line in &dbg_cmds.commands { + script_str.push_str(line); + script_str.push('\n'); + } + + script_str.push_str("qq\n"); // Quit the debugger (including remote debugger, if any) + + // Write the script into a file + debug!("script_str = {}", script_str); + self.dump_output_file(&script_str, "debugger.script"); + let debugger_script = self.make_out_name("debugger.script"); + + let cdb_path = &self.config.cdb.as_ref().unwrap(); + let mut cdb = Command::new(cdb_path); + cdb.arg("-lines") // Enable source line debugging. + .arg("-cf") + .arg(&debugger_script) + .arg(&exe_file); + + let debugger_run_result = self.compose_and_run( + cdb, + self.config.run_lib_path.to_str().unwrap(), + None, // aux_path + None, // input + ); + + if !debugger_run_result.status.success() { + self.fatal_proc_rec("Error while running CDB", &debugger_run_result); + } + + if let Err(e) = dbg_cmds.check_output(&debugger_run_result) { + self.fatal_proc_rec(&e, &debugger_run_result); + } + } + + fn run_debuginfo_gdb_test(&self) { + let config = Config { + target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags), + host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags), + ..self.config.clone() + }; + + let test_cx = TestCx { config: &config, ..*self }; + + test_cx.run_debuginfo_gdb_test_no_opt(); + } + + fn run_debuginfo_gdb_test_no_opt(&self) { + let dbg_cmds = DebuggerCommands::parse_from( + &self.testpaths.file, + self.config, + &["gdb"], + self.revision, + ) + .unwrap_or_else(|e| self.fatal(&e)); + let mut cmds = dbg_cmds.commands.join("\n"); + + // compile test file (it should have 'compile-flags:-g' in the header) + let should_run = self.run_if_enabled(); + let compiler_run_result = self.compile_test(should_run, Emit::None); + if !compiler_run_result.status.success() { + self.fatal_proc_rec("compilation failed!", &compiler_run_result); + } + if let WillExecute::Disabled = should_run { + return; + } + + let exe_file = self.make_exe_name(); + + let debugger_run_result; + if is_android_gdb_target(&self.config.target) { + cmds = cmds.replace("run", "continue"); + + let tool_path = match self.config.android_cross_path.to_str() { + Some(x) => x.to_owned(), + None => self.fatal("cannot find android cross path"), + }; + + // write debugger script + let mut script_str = String::with_capacity(2048); + script_str.push_str(&format!("set charset {}\n", Self::charset())); + script_str.push_str(&format!("set sysroot {}\n", tool_path)); + script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap())); + script_str.push_str("target remote :5039\n"); + script_str.push_str(&format!( + "set solib-search-path \ + ./{}/stage2/lib/rustlib/{}/lib/\n", + self.config.host, self.config.target + )); + for line in &dbg_cmds.breakpoint_lines { + script_str.push_str( + format!( + "break {:?}:{}\n", + self.testpaths.file.file_name().unwrap().to_string_lossy(), + *line + ) + .as_str(), + ); + } + script_str.push_str(&cmds); + script_str.push_str("\nquit\n"); + + debug!("script_str = {}", script_str); + self.dump_output_file(&script_str, "debugger.script"); + + let adb_path = &self.config.adb_path; + + Command::new(adb_path) + .arg("push") + .arg(&exe_file) + .arg(&self.config.adb_test_dir) + .status() + .unwrap_or_else(|e| panic!("failed to exec `{adb_path:?}`: {e:?}")); + + Command::new(adb_path) + .args(&["forward", "tcp:5039", "tcp:5039"]) + .status() + .unwrap_or_else(|e| panic!("failed to exec `{adb_path:?}`: {e:?}")); + + let adb_arg = format!( + "export LD_LIBRARY_PATH={}; \ + gdbserver{} :5039 {}/{}", + self.config.adb_test_dir.clone(), + if self.config.target.contains("aarch64") { "64" } else { "" }, + self.config.adb_test_dir.clone(), + exe_file.file_name().unwrap().to_str().unwrap() + ); + + debug!("adb arg: {}", adb_arg); + let mut adb = Command::new(adb_path) + .args(&["shell", &adb_arg]) + .stdout(Stdio::piped()) + .stderr(Stdio::inherit()) + .spawn() + .unwrap_or_else(|e| panic!("failed to exec `{adb_path:?}`: {e:?}")); + + // Wait for the gdbserver to print out "Listening on port ..." + // at which point we know that it's started and then we can + // execute the debugger below. + let mut stdout = BufReader::new(adb.stdout.take().unwrap()); + let mut line = String::new(); + loop { + line.truncate(0); + stdout.read_line(&mut line).unwrap(); + if line.starts_with("Listening on port 5039") { + break; + } + } + drop(stdout); + + let mut debugger_script = OsString::from("-command="); + debugger_script.push(self.make_out_name("debugger.script")); + let debugger_opts: &[&OsStr] = + &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script]; + + let gdb_path = self.config.gdb.as_ref().unwrap(); + let Output { status, stdout, stderr } = Command::new(&gdb_path) + .args(debugger_opts) + .output() + .unwrap_or_else(|e| panic!("failed to exec `{gdb_path:?}`: {e:?}")); + let cmdline = { + let mut gdb = Command::new(&format!("{}-gdb", self.config.target)); + gdb.args(debugger_opts); + let cmdline = self.make_cmdline(&gdb, ""); + logv(self.config, format!("executing {}", cmdline)); + cmdline + }; + + debugger_run_result = ProcRes { + status, + stdout: String::from_utf8(stdout).unwrap(), + stderr: String::from_utf8(stderr).unwrap(), + truncated: Truncated::No, + cmdline, + }; + if adb.kill().is_err() { + println!("Adb process is already finished."); + } + } else { + let rust_src_root = + self.config.find_rust_src_root().expect("Could not find Rust source root"); + let rust_pp_module_rel_path = Path::new("./src/etc"); + let rust_pp_module_abs_path = + rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned(); + // write debugger script + let mut script_str = String::with_capacity(2048); + script_str.push_str(&format!("set charset {}\n", Self::charset())); + script_str.push_str("show version\n"); + + match self.config.gdb_version { + Some(version) => { + println!("NOTE: compiletest thinks it is using GDB version {}", version); + + if version > extract_gdb_version("7.4").unwrap() { + // Add the directory containing the pretty printers to + // GDB's script auto loading safe path + script_str.push_str(&format!( + "add-auto-load-safe-path {}\n", + rust_pp_module_abs_path.replace(r"\", r"\\") + )); + + let output_base_dir = self.output_base_dir().to_str().unwrap().to_owned(); + + // Add the directory containing the output binary to + // include embedded pretty printers to GDB's script + // auto loading safe path + script_str.push_str(&format!( + "add-auto-load-safe-path {}\n", + output_base_dir.replace(r"\", r"\\") + )); + } + } + _ => { + println!( + "NOTE: compiletest does not know which version of \ + GDB it is using" + ); + } + } + + // The following line actually doesn't have to do anything with + // pretty printing, it just tells GDB to print values on one line: + script_str.push_str("set print pretty off\n"); + + // Add the pretty printer directory to GDB's source-file search path + script_str + .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\"))); + + // Load the target executable + script_str + .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\"))); + + // Force GDB to print values in the Rust format. + script_str.push_str("set language rust\n"); + + // Add line breakpoints + for line in &dbg_cmds.breakpoint_lines { + script_str.push_str(&format!( + "break '{}':{}\n", + self.testpaths.file.file_name().unwrap().to_string_lossy(), + *line + )); + } + + script_str.push_str(&cmds); + script_str.push_str("\nquit\n"); + + debug!("script_str = {}", script_str); + self.dump_output_file(&script_str, "debugger.script"); + + let mut debugger_script = OsString::from("-command="); + debugger_script.push(self.make_out_name("debugger.script")); + + let debugger_opts: &[&OsStr] = + &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script]; + + let mut gdb = Command::new(self.config.gdb.as_ref().unwrap()); + let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { + format!("{pp}:{rust_pp_module_abs_path}") + } else { + rust_pp_module_abs_path + }; + gdb.args(debugger_opts).env("PYTHONPATH", pythonpath); + + debugger_run_result = + self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None); + } + + if !debugger_run_result.status.success() { + self.fatal_proc_rec("gdb failed to execute", &debugger_run_result); + } + + if let Err(e) = dbg_cmds.check_output(&debugger_run_result) { + self.fatal_proc_rec(&e, &debugger_run_result); + } + } + + fn run_debuginfo_lldb_test(&self) { + if self.config.lldb_python_dir.is_none() { + self.fatal("Can't run LLDB test because LLDB's python path is not set."); + } + + let config = Config { + target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags), + host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags), + ..self.config.clone() + }; + + let test_cx = TestCx { config: &config, ..*self }; + + test_cx.run_debuginfo_lldb_test_no_opt(); + } + + fn run_debuginfo_lldb_test_no_opt(&self) { + // compile test file (it should have 'compile-flags:-g' in the header) + let should_run = self.run_if_enabled(); + let compile_result = self.compile_test(should_run, Emit::None); + if !compile_result.status.success() { + self.fatal_proc_rec("compilation failed!", &compile_result); + } + if let WillExecute::Disabled = should_run { + return; + } + + let exe_file = self.make_exe_name(); + + match self.config.lldb_version { + Some(ref version) => { + println!("NOTE: compiletest thinks it is using LLDB version {}", version); + } + _ => { + println!( + "NOTE: compiletest does not know which version of \ + LLDB it is using" + ); + } + } + + // Parse debugger commands etc from test files + let dbg_cmds = DebuggerCommands::parse_from( + &self.testpaths.file, + self.config, + &["lldb"], + self.revision, + ) + .unwrap_or_else(|e| self.fatal(&e)); + + // Write debugger script: + // We don't want to hang when calling `quit` while the process is still running + let mut script_str = String::from("settings set auto-confirm true\n"); + + // Make LLDB emit its version, so we have it documented in the test output + script_str.push_str("version\n"); + + // Switch LLDB into "Rust mode" + let rust_src_root = + self.config.find_rust_src_root().expect("Could not find Rust source root"); + let rust_pp_module_rel_path = Path::new("./src/etc"); + let rust_pp_module_abs_path = rust_src_root.join(rust_pp_module_rel_path); + + script_str.push_str(&format!( + "command script import {}/lldb_lookup.py\n", + rust_pp_module_abs_path.to_str().unwrap() + )); + File::open(rust_pp_module_abs_path.join("lldb_commands")) + .and_then(|mut file| file.read_to_string(&mut script_str)) + .expect("Failed to read lldb_commands"); + + // Set breakpoints on every line that contains the string "#break" + let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy(); + for line in &dbg_cmds.breakpoint_lines { + script_str.push_str(&format!( + "breakpoint set --file '{}' --line {}\n", + source_file_name, line + )); + } + + // Append the other commands + for line in &dbg_cmds.commands { + script_str.push_str(line); + script_str.push('\n'); + } + + // Finally, quit the debugger + script_str.push_str("\nquit\n"); + + // Write the script into a file + debug!("script_str = {}", script_str); + self.dump_output_file(&script_str, "debugger.script"); + let debugger_script = self.make_out_name("debugger.script"); + + // Let LLDB execute the script via lldb_batchmode.py + let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root); + + if !debugger_run_result.status.success() { + self.fatal_proc_rec("Error while running LLDB", &debugger_run_result); + } + + if let Err(e) = dbg_cmds.check_output(&debugger_run_result) { + self.fatal_proc_rec(&e, &debugger_run_result); + } + } + + fn run_lldb( + &self, + test_executable: &Path, + debugger_script: &Path, + rust_src_root: &Path, + ) -> ProcRes { + // Prepare the lldb_batchmode which executes the debugger script + let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py"); + let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { + format!("{pp}:{}", self.config.lldb_python_dir.as_ref().unwrap()) + } else { + self.config.lldb_python_dir.as_ref().unwrap().to_string() + }; + self.run_command_to_procres( + Command::new(&self.config.python) + .arg(&lldb_script_path) + .arg(test_executable) + .arg(debugger_script) + .env("PYTHONUNBUFFERED", "1") // Help debugging #78665 + .env("PYTHONPATH", pythonpath), + ) + } + + fn cleanup_debug_info_options(&self, options: &Vec) -> Vec { + // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS. + let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()]; + + options.iter().filter(|x| !options_to_remove.contains(x)).cloned().collect() + } +} diff --git a/src/tools/compiletest/src/runtest/incremental.rs b/src/tools/compiletest/src/runtest/incremental.rs new file mode 100644 index 0000000000000..81b006292e492 --- /dev/null +++ b/src/tools/compiletest/src/runtest/incremental.rs @@ -0,0 +1,128 @@ +use super::{TestCx, WillExecute}; +use crate::errors; + +// FIXME(jieyouxu): `run_rpass_test` got hoisted out of this because apparently valgrind falls back +// to `run_rpass_test` if valgrind isn't available, which is questionable, but keeping it for +// refactoring changes to preserve current behavior. + +impl TestCx<'_> { + pub(super) fn run_incremental_test(&self) { + // Basic plan for a test incremental/foo/bar.rs: + // - load list of revisions rpass1, cfail2, rpass3 + // - each should begin with `cpass`, `rpass`, `cfail`, or `rfail` + // - if `cpass`, expect compilation to succeed, don't execute + // - if `rpass`, expect compilation and execution to succeed + // - if `cfail`, expect compilation to fail + // - if `rfail`, expect compilation to succeed and execution to fail + // - create a directory build/foo/bar.incremental + // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1 + // - because name of revision starts with "rpass", expect success + // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2 + // - because name of revision starts with "cfail", expect an error + // - load expected errors as usual, but filter for those that end in `[rfail2]` + // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3 + // - because name of revision starts with "rpass", expect success + // - execute build/foo/bar.exe and save output + // + // FIXME -- use non-incremental mode as an oracle? That doesn't apply + // to #[rustc_dirty] and clean tests I guess + + let revision = self.revision.expect("incremental tests require a list of revisions"); + + // Incremental workproduct directory should have already been created. + let incremental_dir = self.props.incremental_dir.as_ref().unwrap(); + assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir"); + + if self.config.verbose { + print!("revision={:?} props={:#?}", revision, self.props); + } + + if revision.starts_with("cpass") { + if self.props.should_ice { + self.fatal("can only use should-ice in cfail tests"); + } + self.run_cpass_test(); + } else if revision.starts_with("rpass") { + if self.props.should_ice { + self.fatal("can only use should-ice in cfail tests"); + } + self.run_rpass_test(); + } else if revision.starts_with("rfail") { + if self.props.should_ice { + self.fatal("can only use should-ice in cfail tests"); + } + self.run_rfail_test(); + } else if revision.starts_with("cfail") { + self.run_cfail_test(); + } else { + self.fatal("revision name must begin with cpass, rpass, rfail, or cfail"); + } + } + + fn run_cpass_test(&self) { + let emit_metadata = self.should_emit_metadata(self.pass_mode()); + let proc_res = self.compile_test(WillExecute::No, emit_metadata); + + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + // FIXME(#41968): Move this check to tidy? + if !errors::load_errors(&self.testpaths.file, self.revision).is_empty() { + self.fatal("compile-pass tests with expected warnings should be moved to ui/"); + } + } + + fn run_cfail_test(&self) { + let pm = self.pass_mode(); + let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm)); + self.check_if_test_should_compile(&proc_res, pm); + self.check_no_compiler_crash(&proc_res, self.props.should_ice); + + let output_to_check = self.get_output(&proc_res); + let expected_errors = errors::load_errors(&self.testpaths.file, self.revision); + if !expected_errors.is_empty() { + if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty() + { + self.fatal("both error pattern and expected errors specified"); + } + self.check_expected_errors(expected_errors, &proc_res); + } else { + self.check_all_error_patterns(&output_to_check, &proc_res, pm); + } + if self.props.should_ice { + match proc_res.status.code() { + Some(101) => (), + _ => self.fatal("expected ICE"), + } + } + + self.check_forbid_output(&output_to_check, &proc_res); + } + + fn run_rfail_test(&self) { + let pm = self.pass_mode(); + let should_run = self.run_if_enabled(); + let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm)); + + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + if let WillExecute::Disabled = should_run { + return; + } + + let proc_res = self.exec_compiled_test(); + + // The value our Makefile configures valgrind to return on failure + const VALGRIND_ERR: i32 = 100; + if proc_res.status.code() == Some(VALGRIND_ERR) { + self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res); + } + + let output_to_check = self.get_output(&proc_res); + self.check_correct_failure_status(&proc_res); + self.check_all_error_patterns(&output_to_check, &proc_res, pm); + } +} diff --git a/src/tools/compiletest/src/runtest/js_doc.rs b/src/tools/compiletest/src/runtest/js_doc.rs new file mode 100644 index 0000000000000..68c74cd155c0e --- /dev/null +++ b/src/tools/compiletest/src/runtest/js_doc.rs @@ -0,0 +1,32 @@ +use std::process::Command; + +use super::TestCx; + +impl TestCx<'_> { + pub(super) fn run_js_doc_test(&self) { + if let Some(nodejs) = &self.config.nodejs { + let out_dir = self.output_base_dir(); + + self.document(&out_dir, &self.testpaths); + + let root = self.config.find_rust_src_root().unwrap(); + let file_stem = + self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem"); + let res = self.run_command_to_procres( + Command::new(&nodejs) + .arg(root.join("src/tools/rustdoc-js/tester.js")) + .arg("--doc-folder") + .arg(out_dir) + .arg("--crate-name") + .arg(file_stem.replace("-", "_")) + .arg("--test-file") + .arg(self.testpaths.file.with_extension("js")), + ); + if !res.status.success() { + self.fatal_proc_rec("rustdoc-js test failed!", &res); + } + } else { + self.fatal("no nodeJS"); + } + } +} diff --git a/src/tools/compiletest/src/runtest/mir_opt.rs b/src/tools/compiletest/src/runtest/mir_opt.rs new file mode 100644 index 0000000000000..02289a8df1eff --- /dev/null +++ b/src/tools/compiletest/src/runtest/mir_opt.rs @@ -0,0 +1,155 @@ +use std::fs; +use std::path::{Path, PathBuf}; + +use glob::glob; +use miropt_test_tools::{files_for_miropt_test, MiroptTest, MiroptTestFile}; +use tracing::debug; + +use super::{Emit, TestCx, WillExecute}; +use crate::compute_diff::write_diff; + +impl TestCx<'_> { + pub(super) fn run_mir_opt_test(&self) { + let pm = self.pass_mode(); + let should_run = self.should_run(pm); + + let mut test_info = files_for_miropt_test( + &self.testpaths.file, + self.config.get_pointer_width(), + self.config.target_cfg().panic.for_miropt_test_tools(), + ); + + let passes = std::mem::take(&mut test_info.passes); + + let proc_res = self.compile_test_with_passes(should_run, Emit::Mir, passes); + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + self.check_mir_dump(test_info); + + if let WillExecute::Yes = should_run { + let proc_res = self.exec_compiled_test(); + + if !proc_res.status.success() { + self.fatal_proc_rec("test run failed!", &proc_res); + } + } + } + + fn check_mir_dump(&self, test_info: MiroptTest) { + let test_dir = self.testpaths.file.parent().unwrap(); + let test_crate = + self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace('-', "_"); + + let MiroptTest { run_filecheck, suffix, files, passes: _ } = test_info; + + if self.config.bless { + for e in + glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, suffix)).unwrap() + { + fs::remove_file(e.unwrap()).unwrap(); + } + for e in + glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, suffix)).unwrap() + { + fs::remove_file(e.unwrap()).unwrap(); + } + } + + for MiroptTestFile { from_file, to_file, expected_file } in files { + let dumped_string = if let Some(after) = to_file { + self.diff_mir_files(from_file.into(), after.into()) + } else { + let mut output_file = PathBuf::new(); + output_file.push(self.get_mir_dump_dir()); + output_file.push(&from_file); + debug!( + "comparing the contents of: {} with {}", + output_file.display(), + expected_file.display() + ); + if !output_file.exists() { + panic!( + "Output file `{}` from test does not exist, available files are in `{}`", + output_file.display(), + output_file.parent().unwrap().display() + ); + } + self.check_mir_test_timestamp(&from_file, &output_file); + let dumped_string = fs::read_to_string(&output_file).unwrap(); + self.normalize_output(&dumped_string, &[]) + }; + + if self.config.bless { + let _ = fs::remove_file(&expected_file); + fs::write(expected_file, dumped_string.as_bytes()).unwrap(); + } else { + if !expected_file.exists() { + panic!("Output file `{}` from test does not exist", expected_file.display()); + } + let expected_string = fs::read_to_string(&expected_file).unwrap(); + if dumped_string != expected_string { + print!("{}", write_diff(&expected_string, &dumped_string, 3)); + panic!( + "Actual MIR output differs from expected MIR output {}", + expected_file.display() + ); + } + } + } + + if run_filecheck { + let output_path = self.output_base_name().with_extension("mir"); + let proc_res = self.verify_with_filecheck(&output_path); + if !proc_res.status.success() { + self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res); + } + } + } + + fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String { + let to_full_path = |path: PathBuf| { + let full = self.get_mir_dump_dir().join(&path); + if !full.exists() { + panic!( + "the mir dump file for {} does not exist (requested in {})", + path.display(), + self.testpaths.file.display(), + ); + } + full + }; + let before = to_full_path(before); + let after = to_full_path(after); + debug!("comparing the contents of: {} with {}", before.display(), after.display()); + let before = fs::read_to_string(before).unwrap(); + let after = fs::read_to_string(after).unwrap(); + let before = self.normalize_output(&before, &[]); + let after = self.normalize_output(&after, &[]); + let mut dumped_string = String::new(); + for result in diff::lines(&before, &after) { + use std::fmt::Write; + match result { + diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(), + diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(), + diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(), + } + } + dumped_string + } + + fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) { + let t = |file| fs::metadata(file).unwrap().modified().unwrap(); + let source_file = &self.testpaths.file; + let output_time = t(output_file); + let source_time = t(source_file); + if source_time > output_time { + debug!("source file time: {:?} output file time: {:?}", source_time, output_time); + panic!( + "test source file `{}` is newer than potentially stale output file `{}`.", + source_file.display(), + test_name + ); + } + } +} diff --git a/src/tools/compiletest/src/runtest/pretty.rs b/src/tools/compiletest/src/runtest/pretty.rs new file mode 100644 index 0000000000000..40e767e84ef39 --- /dev/null +++ b/src/tools/compiletest/src/runtest/pretty.rs @@ -0,0 +1,104 @@ +use std::fs; + +use super::{ProcRes, ReadFrom, TestCx}; +use crate::util::logv; + +impl TestCx<'_> { + pub(super) fn run_pretty_test(&self) { + if self.props.pp_exact.is_some() { + logv(self.config, "testing for exact pretty-printing".to_owned()); + } else { + logv(self.config, "testing for converging pretty-printing".to_owned()); + } + + let rounds = match self.props.pp_exact { + Some(_) => 1, + None => 2, + }; + + let src = fs::read_to_string(&self.testpaths.file).unwrap(); + let mut srcs = vec![src]; + + let mut round = 0; + while round < rounds { + logv( + self.config, + format!("pretty-printing round {} revision {:?}", round, self.revision), + ); + let read_from = + if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) }; + + let proc_res = self.print_source(read_from, &self.props.pretty_mode); + if !proc_res.status.success() { + self.fatal_proc_rec( + &format!( + "pretty-printing failed in round {} revision {:?}", + round, self.revision + ), + &proc_res, + ); + } + + let ProcRes { stdout, .. } = proc_res; + srcs.push(stdout); + round += 1; + } + + let mut expected = match self.props.pp_exact { + Some(ref file) => { + let filepath = self.testpaths.file.parent().unwrap().join(file); + fs::read_to_string(&filepath).unwrap() + } + None => srcs[srcs.len() - 2].clone(), + }; + let mut actual = srcs[srcs.len() - 1].clone(); + + if self.props.pp_exact.is_some() { + // Now we have to care about line endings + let cr = "\r".to_owned(); + actual = actual.replace(&cr, ""); + expected = expected.replace(&cr, ""); + } + + if !self.config.bless { + self.compare_source(&expected, &actual); + } else if expected != actual { + let filepath_buf; + let filepath = match &self.props.pp_exact { + Some(file) => { + filepath_buf = self.testpaths.file.parent().unwrap().join(file); + &filepath_buf + } + None => &self.testpaths.file, + }; + fs::write(filepath, &actual).unwrap(); + } + + // If we're only making sure that the output matches then just stop here + if self.props.pretty_compare_only { + return; + } + + // Finally, let's make sure it actually appears to remain valid code + let proc_res = self.typecheck_source(actual); + if !proc_res.status.success() { + self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res); + } + + if !self.props.pretty_expanded { + return; + } + + // additionally, run `-Zunpretty=expanded` and try to build it. + let proc_res = self.print_source(ReadFrom::Path, "expanded"); + if !proc_res.status.success() { + self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res); + } + + let ProcRes { stdout: expanded_src, .. } = proc_res; + let proc_res = self.typecheck_source(expanded_src); + if !proc_res.status.success() { + self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res); + } + } +} diff --git a/src/tools/compiletest/src/runtest/run_make.rs b/src/tools/compiletest/src/runtest/run_make.rs new file mode 100644 index 0000000000000..852568ae92536 --- /dev/null +++ b/src/tools/compiletest/src/runtest/run_make.rs @@ -0,0 +1,518 @@ +use std::path::Path; +use std::process::{Command, Output, Stdio}; +use std::{env, fs}; + +use super::{ProcRes, TestCx}; +use crate::util::{copy_dir_all, dylib_env_var}; + +impl TestCx<'_> { + pub(super) fn run_rmake_test(&self) { + let test_dir = &self.testpaths.file; + if test_dir.join("rmake.rs").exists() { + self.run_rmake_v2_test(); + } else if test_dir.join("Makefile").exists() { + self.run_rmake_legacy_test(); + } else { + self.fatal("failed to find either `rmake.rs` or `Makefile`") + } + } + + fn run_rmake_legacy_test(&self) { + let cwd = env::current_dir().unwrap(); + let src_root = self.config.src_base.parent().unwrap().parent().unwrap(); + let src_root = cwd.join(&src_root); + + let tmpdir = cwd.join(self.output_base_name()); + if tmpdir.exists() { + self.aggressive_rm_rf(&tmpdir).unwrap(); + } + fs::create_dir_all(&tmpdir).unwrap(); + + let host = &self.config.host; + let make = if host.contains("dragonfly") + || host.contains("freebsd") + || host.contains("netbsd") + || host.contains("openbsd") + || host.contains("aix") + { + "gmake" + } else { + "make" + }; + + let mut cmd = Command::new(make); + cmd.current_dir(&self.testpaths.file) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()) + .env("TARGET", &self.config.target) + .env("PYTHON", &self.config.python) + .env("S", src_root) + .env("RUST_BUILD_STAGE", &self.config.stage_id) + .env("RUSTC", cwd.join(&self.config.rustc_path)) + .env("TMPDIR", &tmpdir) + .env("LD_LIB_PATH_ENVVAR", dylib_env_var()) + .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path)) + .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path)) + .env("LLVM_COMPONENTS", &self.config.llvm_components) + // We for sure don't want these tests to run in parallel, so make + // sure they don't have access to these vars if we run via `make` + // at the top level + .env_remove("MAKEFLAGS") + .env_remove("MFLAGS") + .env_remove("CARGO_MAKEFLAGS"); + + if let Some(ref rustdoc) = self.config.rustdoc_path { + cmd.env("RUSTDOC", cwd.join(rustdoc)); + } + + if let Some(ref node) = self.config.nodejs { + cmd.env("NODE", node); + } + + if let Some(ref linker) = self.config.target_linker { + cmd.env("RUSTC_LINKER", linker); + } + + if let Some(ref clang) = self.config.run_clang_based_tests_with { + cmd.env("CLANG", clang); + } + + if let Some(ref filecheck) = self.config.llvm_filecheck { + cmd.env("LLVM_FILECHECK", filecheck); + } + + if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir { + cmd.env("LLVM_BIN_DIR", llvm_bin_dir); + } + + if let Some(ref remote_test_client) = self.config.remote_test_client { + cmd.env("REMOTE_TEST_CLIENT", remote_test_client); + } + + // We don't want RUSTFLAGS set from the outside to interfere with + // compiler flags set in the test cases: + cmd.env_remove("RUSTFLAGS"); + + // Use dynamic musl for tests because static doesn't allow creating dylibs + if self.config.host.contains("musl") { + cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1"); + } + + if self.config.bless { + cmd.env("RUSTC_BLESS_TEST", "--bless"); + // Assume this option is active if the environment variable is "defined", with _any_ value. + // As an example, a `Makefile` can use this option by: + // + // ifdef RUSTC_BLESS_TEST + // cp "$(TMPDIR)"/actual_something.ext expected_something.ext + // else + // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext + // endif + } + + if self.config.target.contains("msvc") && !self.config.cc.is_empty() { + // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe` + // and that `lib.exe` lives next to it. + let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe"); + + // MSYS doesn't like passing flags of the form `/foo` as it thinks it's + // a path and instead passes `C:\msys64\foo`, so convert all + // `/`-arguments to MSVC here to `-` arguments. + let cflags = self + .config + .cflags + .split(' ') + .map(|s| s.replace("/", "-")) + .collect::>() + .join(" "); + let cxxflags = self + .config + .cxxflags + .split(' ') + .map(|s| s.replace("/", "-")) + .collect::>() + .join(" "); + + cmd.env("IS_MSVC", "1") + .env("IS_WINDOWS", "1") + .env("MSVC_LIB", format!("'{}' -nologo", lib.display())) + .env("MSVC_LIB_PATH", format!("{}", lib.display())) + .env("CC", format!("'{}' {}", self.config.cc, cflags)) + .env("CXX", format!("'{}' {}", &self.config.cxx, cxxflags)); + } else { + cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags)) + .env("CXX", format!("{} {}", self.config.cxx, self.config.cxxflags)) + .env("AR", &self.config.ar); + + if self.config.target.contains("windows") { + cmd.env("IS_WINDOWS", "1"); + } + } + + let (output, truncated) = + self.read2_abbreviated(cmd.spawn().expect("failed to spawn `make`")); + if !output.status.success() { + let res = ProcRes { + status: output.status, + stdout: String::from_utf8_lossy(&output.stdout).into_owned(), + stderr: String::from_utf8_lossy(&output.stderr).into_owned(), + truncated, + cmdline: format!("{:?}", cmd), + }; + self.fatal_proc_rec("make failed", &res); + } + } + + fn run_rmake_v2_test(&self) { + // For `run-make` V2, we need to perform 2 steps to build and run a `run-make` V2 recipe + // (`rmake.rs`) to run the actual tests. The support library is already built as a tool rust + // library and is available under `build/$TARGET/stageN-tools-bin/librun_make_support.rlib`. + // + // 1. We need to build the recipe `rmake.rs` as a binary and link in the `run_make_support` + // library. + // 2. We need to run the recipe binary. + + // So we assume the rust-lang/rust project setup looks like the following (our `.` is the + // top-level directory, irrelevant entries to our purposes omitted): + // + // ``` + // . // <- `source_root` + // ├── build/ // <- `build_root` + // ├── compiler/ + // ├── library/ + // ├── src/ + // │ └── tools/ + // │ └── run_make_support/ + // └── tests + // └── run-make/ + // ``` + + // `source_root` is the top-level directory containing the rust-lang/rust checkout. + let source_root = + self.config.find_rust_src_root().expect("could not determine rust source root"); + // `self.config.build_base` is actually the build base folder + "test" + test suite name, it + // looks like `build//test/run-make`. But we want `build//`. Note + // that the `build` directory does not need to be called `build`, nor does it need to be + // under `source_root`, so we must compute it based off of `self.config.build_base`. + let build_root = + self.config.build_base.parent().and_then(Path::parent).unwrap().to_path_buf(); + + // We construct the following directory tree for each rmake.rs test: + // ``` + // / + // rmake.exe + // rmake_out/ + // ``` + // having the recipe executable separate from the output artifacts directory allows the + // recipes to `remove_dir_all($TMPDIR)` without running into issues related trying to remove + // a currently running executable because the recipe executable is not under the + // `rmake_out/` directory. + // + // This setup intentionally diverges from legacy Makefile run-make tests. + let base_dir = self.output_base_name(); + if base_dir.exists() { + self.aggressive_rm_rf(&base_dir).unwrap(); + } + let rmake_out_dir = base_dir.join("rmake_out"); + fs::create_dir_all(&rmake_out_dir).unwrap(); + + // Copy all input files (apart from rmake.rs) to the temporary directory, + // so that the input directory structure from `tests/run-make/` is mirrored + // to the `rmake_out` directory. + for path in walkdir::WalkDir::new(&self.testpaths.file).min_depth(1) { + let path = path.unwrap().path().to_path_buf(); + if path.file_name().is_some_and(|s| s != "rmake.rs") { + let target = rmake_out_dir.join(path.strip_prefix(&self.testpaths.file).unwrap()); + if path.is_dir() { + copy_dir_all(&path, target).unwrap(); + } else { + fs::copy(&path, target).unwrap(); + } + } + } + + // `self.config.stage_id` looks like `stage1-`, but we only want + // the `stage1` part as that is what the output directories of bootstrap are prefixed with. + // Note that this *assumes* build layout from bootstrap is produced as: + // + // ``` + // build// // <- this is `build_root` + // ├── stage0 + // ├── stage0-bootstrap-tools + // ├── stage0-codegen + // ├── stage0-rustc + // ├── stage0-std + // ├── stage0-sysroot + // ├── stage0-tools + // ├── stage0-tools-bin + // ├── stage1 + // ├── stage1-std + // ├── stage1-tools + // ├── stage1-tools-bin + // └── test + // ``` + // FIXME(jieyouxu): improve the communication between bootstrap and compiletest here so + // we don't have to hack out a `stageN`. + let stage = self.config.stage_id.split('-').next().unwrap(); + + // In order to link in the support library as a rlib when compiling recipes, we need three + // paths: + // 1. Path of the built support library rlib itself. + // 2. Path of the built support library's dependencies directory. + // 3. Path of the built support library's dependencies' dependencies directory. + // + // The paths look like + // + // ``` + // build// + // ├── stageN-tools-bin/ + // │ └── librun_make_support.rlib // <- support rlib itself + // ├── stageN-tools/ + // │ ├── release/deps/ // <- deps of deps + // │ └── /release/deps/ // <- deps + // ``` + // + // FIXME(jieyouxu): there almost certainly is a better way to do this (specifically how the + // support lib and its deps are organized, can't we copy them to the tools-bin dir as + // well?), but this seems to work for now. + + let stage_tools_bin = build_root.join(format!("{stage}-tools-bin")); + let support_lib_path = stage_tools_bin.join("librun_make_support.rlib"); + + let stage_tools = build_root.join(format!("{stage}-tools")); + let support_lib_deps = stage_tools.join(&self.config.host).join("release").join("deps"); + let support_lib_deps_deps = stage_tools.join("release").join("deps"); + + // To compile the recipe with rustc, we need to provide suitable dynamic library search + // paths to rustc. This includes both: + // 1. The "base" dylib search paths that was provided to compiletest, e.g. `LD_LIBRARY_PATH` + // on some linux distros. + // 2. Specific library paths in `self.config.compile_lib_path` needed for running rustc. + + let base_dylib_search_paths = + Vec::from_iter(env::split_paths(&env::var(dylib_env_var()).unwrap())); + + let host_dylib_search_paths = { + let mut paths = vec![self.config.compile_lib_path.clone()]; + paths.extend(base_dylib_search_paths.iter().cloned()); + paths + }; + + // Calculate the paths of the recipe binary. As previously discussed, this is placed at + // `/` with `bin_name` being `rmake` or `rmake.exe` depending on + // platform. + let recipe_bin = { + let mut p = base_dir.join("rmake"); + p.set_extension(env::consts::EXE_EXTENSION); + p + }; + + let mut rustc = Command::new(&self.config.rustc_path); + rustc + .arg("-o") + .arg(&recipe_bin) + // Specify library search paths for `run_make_support`. + .arg(format!("-Ldependency={}", &support_lib_path.parent().unwrap().to_string_lossy())) + .arg(format!("-Ldependency={}", &support_lib_deps.to_string_lossy())) + .arg(format!("-Ldependency={}", &support_lib_deps_deps.to_string_lossy())) + // Provide `run_make_support` as extern prelude, so test writers don't need to write + // `extern run_make_support;`. + .arg("--extern") + .arg(format!("run_make_support={}", &support_lib_path.to_string_lossy())) + .arg("--edition=2021") + .arg(&self.testpaths.file.join("rmake.rs")) + // Provide necessary library search paths for rustc. + .env(dylib_env_var(), &env::join_paths(host_dylib_search_paths).unwrap()); + + // In test code we want to be very pedantic about values being silently discarded that are + // annotated with `#[must_use]`. + rustc.arg("-Dunused_must_use"); + + // > `cg_clif` uses `COMPILETEST_FORCE_STAGE0=1 ./x.py test --stage 0` for running the rustc + // > test suite. With the introduction of rmake.rs this broke. `librun_make_support.rlib` is + // > compiled using the bootstrap rustc wrapper which sets `--sysroot + // > build/aarch64-unknown-linux-gnu/stage0-sysroot`, but then compiletest will compile + // > `rmake.rs` using the sysroot of the bootstrap compiler causing it to not find the + // > `libstd.rlib` against which `librun_make_support.rlib` is compiled. + // + // The gist here is that we have to pass the proper stage0 sysroot if we want + // + // ``` + // $ COMPILETEST_FORCE_STAGE0=1 ./x test run-make --stage 0 + // ``` + // + // to work correctly. + // + // See for more background. + if std::env::var_os("COMPILETEST_FORCE_STAGE0").is_some() { + let stage0_sysroot = build_root.join("stage0-sysroot"); + rustc.arg("--sysroot").arg(&stage0_sysroot); + } + + // Now run rustc to build the recipe. + let res = self.run_command_to_procres(&mut rustc); + if !res.status.success() { + self.fatal_proc_rec("run-make test failed: could not build `rmake.rs` recipe", &res); + } + + // To actually run the recipe, we have to provide the recipe with a bunch of information + // provided through env vars. + + // Compute stage-specific standard library paths. + let stage_std_path = build_root.join(&stage).join("lib"); + + // Compute dynamic library search paths for recipes. + let recipe_dylib_search_paths = { + let mut paths = base_dylib_search_paths.clone(); + paths.push(support_lib_path.parent().unwrap().to_path_buf()); + paths.push(stage_std_path.join("rustlib").join(&self.config.host).join("lib")); + paths + }; + + // Compute runtime library search paths for recipes. This is target-specific. + let target_runtime_dylib_search_paths = { + let mut paths = vec![rmake_out_dir.clone()]; + paths.extend(base_dylib_search_paths.iter().cloned()); + paths + }; + + // FIXME(jieyouxu): please rename `TARGET_RPATH_ENV`, `HOST_RPATH_DIR` and + // `TARGET_RPATH_DIR`, it is **extremely** confusing! + let mut cmd = Command::new(&recipe_bin); + cmd.current_dir(&rmake_out_dir) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()) + // Provide the target-specific env var that is used to record dylib search paths. For + // example, this could be `LD_LIBRARY_PATH` on some linux distros but `PATH` on Windows. + .env("LD_LIB_PATH_ENVVAR", dylib_env_var()) + // Provide the dylib search paths. + .env(dylib_env_var(), &env::join_paths(recipe_dylib_search_paths).unwrap()) + // Provide runtime dylib search paths. + .env("TARGET_RPATH_ENV", &env::join_paths(target_runtime_dylib_search_paths).unwrap()) + // Provide the target. + .env("TARGET", &self.config.target) + // Some tests unfortunately still need Python, so provide path to a Python interpreter. + .env("PYTHON", &self.config.python) + // Provide path to checkout root. This is the top-level directory containing + // rust-lang/rust checkout. + .env("SOURCE_ROOT", &source_root) + // Provide path to stage-corresponding rustc. + .env("RUSTC", &self.config.rustc_path) + // Provide the directory to libraries that are needed to run the *compiler*. This is not + // to be confused with `TARGET_RPATH_ENV` or `TARGET_RPATH_DIR`. This is needed if the + // recipe wants to invoke rustc. + .env("HOST_RPATH_DIR", &self.config.compile_lib_path) + // Provide the directory to libraries that might be needed to run compiled binaries + // (further compiled by the recipe!). + .env("TARGET_RPATH_DIR", &self.config.run_lib_path) + // Provide which LLVM components are available (e.g. which LLVM components are provided + // through a specific CI runner). + .env("LLVM_COMPONENTS", &self.config.llvm_components); + + if let Some(ref rustdoc) = self.config.rustdoc_path { + cmd.env("RUSTDOC", source_root.join(rustdoc)); + } + + if let Some(ref node) = self.config.nodejs { + cmd.env("NODE", node); + } + + if let Some(ref linker) = self.config.target_linker { + cmd.env("RUSTC_LINKER", linker); + } + + if let Some(ref clang) = self.config.run_clang_based_tests_with { + cmd.env("CLANG", clang); + } + + if let Some(ref filecheck) = self.config.llvm_filecheck { + cmd.env("LLVM_FILECHECK", filecheck); + } + + if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir { + cmd.env("LLVM_BIN_DIR", llvm_bin_dir); + } + + if let Some(ref remote_test_client) = self.config.remote_test_client { + cmd.env("REMOTE_TEST_CLIENT", remote_test_client); + } + + // We don't want RUSTFLAGS set from the outside to interfere with + // compiler flags set in the test cases: + cmd.env_remove("RUSTFLAGS"); + + // Use dynamic musl for tests because static doesn't allow creating dylibs + if self.config.host.contains("musl") { + cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1"); + } + + if self.config.bless { + // If we're running in `--bless` mode, set an environment variable to tell + // `run_make_support` to bless snapshot files instead of checking them. + // + // The value is this test's source directory, because the support code + // will need that path in order to bless the _original_ snapshot files, + // not the copies in `rmake_out`. + // (See .) + cmd.env("RUSTC_BLESS_TEST", &self.testpaths.file); + } + + if self.config.target.contains("msvc") && !self.config.cc.is_empty() { + // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe` + // and that `lib.exe` lives next to it. + let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe"); + + // MSYS doesn't like passing flags of the form `/foo` as it thinks it's + // a path and instead passes `C:\msys64\foo`, so convert all + // `/`-arguments to MSVC here to `-` arguments. + let cflags = self + .config + .cflags + .split(' ') + .map(|s| s.replace("/", "-")) + .collect::>() + .join(" "); + let cxxflags = self + .config + .cxxflags + .split(' ') + .map(|s| s.replace("/", "-")) + .collect::>() + .join(" "); + + cmd.env("IS_MSVC", "1") + .env("IS_WINDOWS", "1") + .env("MSVC_LIB", format!("'{}' -nologo", lib.display())) + .env("MSVC_LIB_PATH", format!("{}", lib.display())) + // Note: we diverge from legacy run_make and don't lump `CC` the compiler and + // default flags together. + .env("CC_DEFAULT_FLAGS", &cflags) + .env("CC", &self.config.cc) + .env("CXX_DEFAULT_FLAGS", &cxxflags) + .env("CXX", &self.config.cxx); + } else { + cmd.env("CC_DEFAULT_FLAGS", &self.config.cflags) + .env("CC", &self.config.cc) + .env("CXX_DEFAULT_FLAGS", &self.config.cxxflags) + .env("CXX", &self.config.cxx) + .env("AR", &self.config.ar); + + if self.config.target.contains("windows") { + cmd.env("IS_WINDOWS", "1"); + } + } + + let (Output { stdout, stderr, status }, truncated) = + self.read2_abbreviated(cmd.spawn().expect("failed to spawn `rmake`")); + if !status.success() { + let res = ProcRes { + status, + stdout: String::from_utf8_lossy(&stdout).into_owned(), + stderr: String::from_utf8_lossy(&stderr).into_owned(), + truncated, + cmdline: format!("{:?}", cmd), + }; + self.fatal_proc_rec("rmake recipe failed to complete", &res); + } + } +} diff --git a/src/tools/compiletest/src/runtest/rustdoc.rs b/src/tools/compiletest/src/runtest/rustdoc.rs new file mode 100644 index 0000000000000..6a31888527ef0 --- /dev/null +++ b/src/tools/compiletest/src/runtest/rustdoc.rs @@ -0,0 +1,34 @@ +use std::process::Command; + +use super::{remove_and_create_dir_all, TestCx}; + +impl TestCx<'_> { + pub(super) fn run_rustdoc_test(&self) { + assert!(self.revision.is_none(), "revisions not relevant here"); + + let out_dir = self.output_base_dir(); + remove_and_create_dir_all(&out_dir); + + let proc_res = self.document(&out_dir, &self.testpaths); + if !proc_res.status.success() { + self.fatal_proc_rec("rustdoc failed!", &proc_res); + } + + if self.props.check_test_line_numbers_match { + self.check_rustdoc_test_option(proc_res); + } else { + let root = self.config.find_rust_src_root().unwrap(); + let mut cmd = Command::new(&self.config.python); + cmd.arg(root.join("src/etc/htmldocck.py")).arg(&out_dir).arg(&self.testpaths.file); + if self.config.bless { + cmd.arg("--bless"); + } + let res = self.run_command_to_procres(&mut cmd); + if !res.status.success() { + self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| { + this.compare_to_default_rustdoc(&out_dir) + }); + } + } + } +} diff --git a/src/tools/compiletest/src/runtest/rustdoc_json.rs b/src/tools/compiletest/src/runtest/rustdoc_json.rs new file mode 100644 index 0000000000000..a39887ccd026d --- /dev/null +++ b/src/tools/compiletest/src/runtest/rustdoc_json.rs @@ -0,0 +1,48 @@ +use std::process::Command; + +use super::{remove_and_create_dir_all, TestCx}; + +impl TestCx<'_> { + pub(super) fn run_rustdoc_json_test(&self) { + //FIXME: Add bless option. + + assert!(self.revision.is_none(), "revisions not relevant here"); + + let out_dir = self.output_base_dir(); + remove_and_create_dir_all(&out_dir); + + let proc_res = self.document(&out_dir, &self.testpaths); + if !proc_res.status.success() { + self.fatal_proc_rec("rustdoc failed!", &proc_res); + } + + let root = self.config.find_rust_src_root().unwrap(); + let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap()); + json_out.set_extension("json"); + let res = self.run_command_to_procres( + Command::new(self.config.jsondocck_path.as_ref().unwrap()) + .arg("--doc-dir") + .arg(root.join(&out_dir)) + .arg("--template") + .arg(&self.testpaths.file), + ); + + if !res.status.success() { + self.fatal_proc_rec_with_ctx("jsondocck failed!", &res, |_| { + println!("Rustdoc Output:"); + proc_res.print_info(); + }) + } + + let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap()); + json_out.set_extension("json"); + + let res = self.run_command_to_procres( + Command::new(self.config.jsondoclint_path.as_ref().unwrap()).arg(&json_out), + ); + + if !res.status.success() { + self.fatal_proc_rec("jsondoclint failed!", &res); + } + } +} diff --git a/src/tools/compiletest/src/runtest/ui.rs b/src/tools/compiletest/src/runtest/ui.rs new file mode 100644 index 0000000000000..88a0ec3aa3b2d --- /dev/null +++ b/src/tools/compiletest/src/runtest/ui.rs @@ -0,0 +1,233 @@ +use std::collections::HashSet; +use std::fs::OpenOptions; +use std::io::Write; + +use rustfix::{apply_suggestions, get_suggestions_from_json, Filter}; +use tracing::debug; + +use super::{ + AllowUnused, Emit, ErrorKind, FailMode, LinkToAux, PassMode, TargetLocation, TestCx, + TestOutput, Truncated, WillExecute, UI_FIXED, +}; +use crate::{errors, json}; + +impl TestCx<'_> { + pub(super) fn run_ui_test(&self) { + if let Some(FailMode::Build) = self.props.fail_mode { + // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck). + let pm = Some(PassMode::Check); + let proc_res = + self.compile_test_general(WillExecute::No, Emit::Metadata, pm, Vec::new()); + self.check_if_test_should_compile(&proc_res, pm); + } + + let pm = self.pass_mode(); + let should_run = self.should_run(pm); + let emit_metadata = self.should_emit_metadata(pm); + let proc_res = self.compile_test(should_run, emit_metadata); + self.check_if_test_should_compile(&proc_res, pm); + if matches!(proc_res.truncated, Truncated::Yes) + && !self.props.dont_check_compiler_stdout + && !self.props.dont_check_compiler_stderr + { + self.fatal_proc_rec( + "compiler output got truncated, cannot compare with reference file", + &proc_res, + ); + } + + // if the user specified a format in the ui test + // print the output to the stderr file, otherwise extract + // the rendered error messages from json and print them + let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format")); + + let expected_fixed = self.load_expected_output(UI_FIXED); + + self.check_and_prune_duplicate_outputs(&proc_res, &[], &[]); + + let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit); + let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr); + + if self.config.compare_mode.is_some() { + // don't test rustfix with nll right now + } else if self.config.rustfix_coverage { + // Find out which tests have `MachineApplicable` suggestions but are missing + // `run-rustfix` or `run-rustfix-only-machine-applicable` headers. + // + // This will return an empty `Vec` in case the executed test file has a + // `compile-flags: --error-format=xxxx` header with a value other than `json`. + let suggestions = get_suggestions_from_json( + &rustfix_input, + &HashSet::new(), + Filter::MachineApplicableOnly, + ) + .unwrap_or_default(); + if !suggestions.is_empty() + && !self.props.run_rustfix + && !self.props.rustfix_only_machine_applicable + { + let mut coverage_file_path = self.config.build_base.clone(); + coverage_file_path.push("rustfix_missing_coverage.txt"); + debug!("coverage_file_path: {}", coverage_file_path.display()); + + let mut file = OpenOptions::new() + .create(true) + .append(true) + .open(coverage_file_path.as_path()) + .expect("could not create or open file"); + + if let Err(e) = writeln!(file, "{}", self.testpaths.file.display()) { + panic!("couldn't write to {}: {e:?}", coverage_file_path.display()); + } + } + } else if self.props.run_rustfix { + // Apply suggestions from rustc to the code itself + let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap(); + let suggestions = get_suggestions_from_json( + &rustfix_input, + &HashSet::new(), + if self.props.rustfix_only_machine_applicable { + Filter::MachineApplicableOnly + } else { + Filter::Everything + }, + ) + .unwrap(); + let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|e| { + panic!( + "failed to apply suggestions for {:?} with rustfix: {}", + self.testpaths.file, e + ) + }); + + errors += self.compare_output("fixed", &fixed_code, &expected_fixed); + } else if !expected_fixed.is_empty() { + panic!( + "the `//@ run-rustfix` directive wasn't found but a `*.fixed` \ + file was found" + ); + } + + if errors > 0 { + println!("To update references, rerun the tests and pass the `--bless` flag"); + let relative_path_to_file = + self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap()); + println!( + "To only update this specific test, also pass `--test-args {}`", + relative_path_to_file.display(), + ); + self.fatal_proc_rec( + &format!("{} errors occurred comparing output.", errors), + &proc_res, + ); + } + + let expected_errors = errors::load_errors(&self.testpaths.file, self.revision); + + if let WillExecute::Yes = should_run { + let proc_res = self.exec_compiled_test(); + let run_output_errors = if self.props.check_run_results { + self.load_compare_outputs(&proc_res, TestOutput::Run, explicit) + } else { + 0 + }; + if run_output_errors > 0 { + self.fatal_proc_rec( + &format!("{} errors occurred comparing run output.", run_output_errors), + &proc_res, + ); + } + if self.should_run_successfully(pm) { + if !proc_res.status.success() { + self.fatal_proc_rec("test run failed!", &proc_res); + } + } else if proc_res.status.success() { + self.fatal_proc_rec("test run succeeded!", &proc_res); + } + + if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty() + { + // "// error-pattern" comments + let output_to_check = self.get_output(&proc_res); + self.check_all_error_patterns(&output_to_check, &proc_res, pm); + } + } + + debug!( + "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \ + proc_res.status={:?} props.error_patterns={:?}", + explicit, + self.config.compare_mode, + expected_errors, + proc_res.status, + self.props.error_patterns + ); + + let check_patterns = should_run == WillExecute::No + && (!self.props.error_patterns.is_empty() + || !self.props.regex_error_patterns.is_empty()); + if !explicit && self.config.compare_mode.is_none() { + let check_annotations = !check_patterns || !expected_errors.is_empty(); + + if check_annotations { + // "//~ERROR comments" + self.check_expected_errors(expected_errors, &proc_res); + } + } else if explicit && !expected_errors.is_empty() { + let msg = format!( + "line {}: cannot combine `--error-format` with {} annotations; use `error-pattern` instead", + expected_errors[0].line_num, + expected_errors[0].kind.unwrap_or(ErrorKind::Error), + ); + self.fatal(&msg); + } + if check_patterns { + // "// error-pattern" comments + let output_to_check = self.get_output(&proc_res); + self.check_all_error_patterns(&output_to_check, &proc_res, pm); + } + + if self.props.run_rustfix && self.config.compare_mode.is_none() { + // And finally, compile the fixed code and make sure it both + // succeeds and has no diagnostics. + let mut rustc = self.make_compile_args( + &self.expected_output_path(UI_FIXED), + TargetLocation::ThisFile(self.make_exe_name()), + emit_metadata, + AllowUnused::No, + LinkToAux::Yes, + Vec::new(), + ); + + // If a test is revisioned, it's fixed source file can be named "a.foo.fixed", which, + // well, "a.foo" isn't a valid crate name. So we explicitly mangle the test name + // (including the revision) here to avoid the test writer having to manually specify a + // `#![crate_name = "..."]` as a workaround. This is okay since we're only checking if + // the fixed code is compilable. + if self.revision.is_some() { + let crate_name = + self.testpaths.file.file_stem().expect("test must have a file stem"); + // crate name must be alphanumeric or `_`. + let crate_name = + crate_name.to_str().expect("crate name implies file name must be valid UTF-8"); + // replace `a.foo` -> `a__foo` for crate name purposes. + // replace `revision-name-with-dashes` -> `revision_name_with_underscore` + let crate_name = crate_name.replace('.', "__"); + let crate_name = crate_name.replace('-', "_"); + rustc.arg("--crate-name"); + rustc.arg(crate_name); + } + + let res = self.compose_and_run_compiler(rustc, None, self.testpaths); + if !res.status.success() { + self.fatal_proc_rec("failed to compile fixed code", &res); + } + if !res.stderr.is_empty() + && !self.props.rustfix_only_machine_applicable + && !json::rustfix_diagnostics_only(&res.stderr).is_empty() + { + self.fatal_proc_rec("fixed code is still producing diagnostics", &res); + } + } + } +} diff --git a/src/tools/compiletest/src/runtest/valgrind.rs b/src/tools/compiletest/src/runtest/valgrind.rs new file mode 100644 index 0000000000000..8d72c4be9ff29 --- /dev/null +++ b/src/tools/compiletest/src/runtest/valgrind.rs @@ -0,0 +1,34 @@ +use super::{Emit, TestCx, WillExecute}; + +impl TestCx<'_> { + pub(super) fn run_valgrind_test(&self) { + assert!(self.revision.is_none(), "revisions not relevant here"); + + // FIXME(jieyouxu): does this really make any sense? If a valgrind test isn't testing + // valgrind, what is it even testing? + if self.config.valgrind_path.is_none() { + assert!(!self.config.force_valgrind); + return self.run_rpass_test(); + } + + let should_run = self.run_if_enabled(); + let mut proc_res = self.compile_test(should_run, Emit::None); + + if !proc_res.status.success() { + self.fatal_proc_rec("compilation failed!", &proc_res); + } + + if let WillExecute::Disabled = should_run { + return; + } + + let mut new_config = self.config.clone(); + new_config.runner = new_config.valgrind_path.clone(); + let new_cx = TestCx { config: &new_config, ..*self }; + proc_res = new_cx.exec_compiled_test(); + + if !proc_res.status.success() { + self.fatal_proc_rec("test run failed!", &proc_res); + } + } +} diff --git a/src/tools/tidy/src/lib.rs b/src/tools/tidy/src/lib.rs index 3215896091dde..1e7eb82b83e98 100644 --- a/src/tools/tidy/src/lib.rs +++ b/src/tools/tidy/src/lib.rs @@ -82,6 +82,7 @@ pub mod pal; pub mod run_make_tests; pub mod rustdoc_css_themes; pub mod rustdoc_gui_tests; +pub mod rustdoc_templates; pub mod style; pub mod target_policy; pub mod target_specific_tests; diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs index e6d21bfb245f7..38b3f3f6417a9 100644 --- a/src/tools/tidy/src/main.rs +++ b/src/tools/tidy/src/main.rs @@ -108,6 +108,7 @@ fn main() { check!(mir_opt_tests, &tests_path, bless); check!(rustdoc_gui_tests, &tests_path); check!(rustdoc_css_themes, &librustdoc_path); + check!(rustdoc_templates, &librustdoc_path); check!(known_bug, &crashes_path); check!(unknown_revision, &tests_path); diff --git a/src/tools/tidy/src/rustdoc_templates.rs b/src/tools/tidy/src/rustdoc_templates.rs new file mode 100644 index 0000000000000..6c8530e6366f6 --- /dev/null +++ b/src/tools/tidy/src/rustdoc_templates.rs @@ -0,0 +1,58 @@ +//! Tidy check to ensure that rustdoc templates didn't forget a `{# #}` to strip extra whitespace +//! characters. + +use std::ffi::OsStr; +use std::path::Path; + +use ignore::DirEntry; + +use crate::walk::walk; + +// Array containing `("beginning of tag", "end of tag")`. +const TAGS: &[(&str, &str)] = &[("{#", "#}"), ("{%", "%}"), ("{{", "}}")]; + +pub fn check(librustdoc_path: &Path, bad: &mut bool) { + walk( + &librustdoc_path.join("html/templates"), + |path, is_dir| is_dir || !path.extension().is_some_and(|ext| ext == OsStr::new("html")), + &mut |path: &DirEntry, file_content: &str| { + let mut lines = file_content.lines().enumerate().peekable(); + + while let Some((pos, line)) = lines.next() { + let line = line.trim(); + if TAGS.iter().any(|(_, tag)| line.ends_with(tag)) { + continue; + } + let Some(next_line) = lines.peek().map(|(_, next_line)| next_line.trim()) else { + continue; + }; + if TAGS.iter().any(|(tag, _)| next_line.starts_with(tag)) { + continue; + } + // Maybe this is a multi-line tag, let's filter it out then. + match TAGS.iter().find_map(|(tag, end_tag)| { + if line.rfind(tag).is_some() { Some(end_tag) } else { None } + }) { + None => { + // No it's not, let's error. + tidy_error!( + bad, + "`{}` at line {}: missing `{{# #}}` at the end of the line", + path.path().display(), + pos + 1, + ); + } + Some(end_tag) => { + // We skip the tag. + while let Some((_, next_line)) = lines.peek() { + if next_line.contains(end_tag) { + break; + } + lines.next(); + } + } + } + } + }, + ); +} diff --git a/tests/ui/cfg/cfg-false-feature.rs b/tests/ui/cfg/cfg-false-feature.rs index 6645f667d7e65..716b18492c739 100644 --- a/tests/ui/cfg/cfg-false-feature.rs +++ b/tests/ui/cfg/cfg-false-feature.rs @@ -5,7 +5,7 @@ #![feature(decl_macro)] #![cfg(FALSE)] -#![feature(box_syntax)] +#![feature(box_patterns)] macro mac() {} // OK diff --git a/tests/ui/macros/auxiliary/metavar_2018.rs b/tests/ui/macros/auxiliary/metavar_2018.rs new file mode 100644 index 0000000000000..7e8523a9edf1b --- /dev/null +++ b/tests/ui/macros/auxiliary/metavar_2018.rs @@ -0,0 +1,14 @@ +//@ edition: 2018 +#[macro_export] +macro_rules! make_matcher { + ($name:ident, $fragment_type:ident, $d:tt) => { + #[macro_export] + macro_rules! $name { + ($d _:$fragment_type) => { true }; + (const { 0 }) => { false }; + (A | B) => { false }; + } + }; +} +make_matcher!(is_expr_from_2018, expr, $); +make_matcher!(is_pat_from_2018, pat, $); diff --git a/tests/ui/macros/metavar_cross_edition_recursive_macros.rs b/tests/ui/macros/metavar_cross_edition_recursive_macros.rs new file mode 100644 index 0000000000000..3eec1208b89ae --- /dev/null +++ b/tests/ui/macros/metavar_cross_edition_recursive_macros.rs @@ -0,0 +1,38 @@ +//@ compile-flags: --edition=2024 -Z unstable-options +//@ aux-build: metavar_2018.rs +//@ known-bug: #130484 +//@ run-pass + +// This test captures the behavior of macro-generating-macros with fragment +// specifiers across edition boundaries. + +#![feature(expr_fragment_specifier_2024)] +#![feature(macro_metavar_expr)] +#![allow(incomplete_features)] + +extern crate metavar_2018; + +use metavar_2018::{is_expr_from_2018, is_pat_from_2018, make_matcher}; + +make_matcher!(is_expr_from_2024, expr, $); +make_matcher!(is_pat_from_2024, pat, $); + +fn main() { + // Check expr + let from_2018 = is_expr_from_2018!(const { 0 }); + dbg!(from_2018); + let from_2024 = is_expr_from_2024!(const { 0 }); + dbg!(from_2024); + + assert!(!from_2018); + assert!(!from_2024); // from_2024 will be true once #130484 is fixed + + // Check pat + let from_2018 = is_pat_from_2018!(A | B); + dbg!(from_2018); + let from_2024 = is_pat_from_2024!(A | B); + dbg!(from_2024); + + assert!(!from_2018); + assert!(!from_2024); // from_2024 will be true once #130484 is fixed +} diff --git a/tests/ui/traits/sized-coniductive.rs b/tests/ui/traits/sized-coniductive.rs new file mode 100644 index 0000000000000..5f63b166f988b --- /dev/null +++ b/tests/ui/traits/sized-coniductive.rs @@ -0,0 +1,14 @@ +//@ check-pass +// https://github.com/rust-lang/rust/issues/129541 + +#[derive(Clone)] +struct Test { + field: std::borrow::Cow<'static, [Self]>, +} + +#[derive(Clone)] +struct Hello { + a: <[Hello] as std::borrow::ToOwned>::Owned, +} + +fn main(){}