Support more attributes ; Add examples ; Fix generated use statement pointing to self ; Fix linter warning avoid_return_types_on_setters ; Reduce number of generated files

.github/workflows/ci.yaml

@@ -188,6 +188,8 @@ jobs:
           - frb_example--flutter_via_create
           - frb_example--flutter_via_integrate
           - frb_example--flutter_package
+          - frb_example--rust_ui_counter--ui
+          - frb_example--rust_ui_todo_list--ui
         exclude:
           - { image: windows-2019, package: frb_example--deliberate_bad }
           - { image: macos-11, package: frb_example--deliberate_bad }
@@ -756,6 +758,8 @@ jobs:
         package:
           - frb_example--flutter_via_create
           - frb_example--flutter_package--example
+          - frb_example--rust_ui_counter--ui
+          - frb_example--rust_ui_todo_list--ui
           # no `frb_example--flutter_via_integrate` since it is similar to `flutter_via_create`
         device:
           - "pixel"
@@ -822,6 +826,8 @@ jobs:
         package:
           - frb_example--flutter_via_create
           - frb_example--flutter_package--example
+          - frb_example--rust_ui_counter--ui
+          - frb_example--rust_ui_todo_list--ui
           # no `frb_example--flutter_via_integrate` since it is similar to `flutter_via_create`
         device:
           - "iPad (10th generation) Simulator (17.2)"
@@ -880,6 +886,26 @@ jobs:
             platform: linux
             package: frb_example--flutter_package--example
 
+          - image: windows-2019
+            platform: windows
+            package: frb_example--rust_ui_counter--ui
+          - image: macos-13
+            platform: macos
+            package: frb_example--rust_ui_counter--ui
+          - image: ubuntu-latest
+            platform: linux
+            package: frb_example--rust_ui_counter--ui
+
+          - image: windows-2019
+            platform: windows
+            package: frb_example--rust_ui_todo_list--ui
+          - image: macos-13
+            platform: macos
+            package: frb_example--rust_ui_todo_list--ui
+          - image: ubuntu-latest
+            platform: linux
+            package: frb_example--rust_ui_todo_list--ui
+
           # only slightly test `flutter_via_integrate` since quite similar to `flutter_via_create`
           - image: ubuntu-latest
             platform: linux

Cargo.toml

@@ -17,6 +17,8 @@ exclude = [
     "frb_example/pure_dart/rust",
     "frb_example/pure_dart_pde/rust",
     "frb_example/integrate_third_party/rust",
+    "frb_example/rust_ui_counter",
+    "frb_example/rust_ui_todo_list",
 ]
 resolver = "2"
 

frb_codegen/assets/integration_template/REPLACE_ME_RUST_CRATE_DIR/src/frb_generated.rs

@@ -231,14 +231,46 @@ impl SseEncode for bool {
 }
 
 #[cfg(not(target_family = "wasm"))]
-#[path = "frb_generated.io.rs"]
-mod io;
+mod io {
+    // This file is automatically generated, so please do not edit it.
+    // Generated by `flutter_rust_bridge`@ 2.0.0.
+
+    // Section: imports
+
+    use super::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_io!();
+}
 #[cfg(not(target_family = "wasm"))]
 pub use io::*;
 
 /// cbindgen:ignore
 #[cfg(target_family = "wasm")]
-#[path = "frb_generated.web.rs"]
-mod web;
+mod web {
+    // This file is automatically generated, so please do not edit it.
+    // Generated by `flutter_rust_bridge`@ 2.0.0.
+
+    // Section: imports
+
+    use super::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::wasm_bindgen;
+    use flutter_rust_bridge::for_generated::wasm_bindgen::prelude::*;
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_web!();
+}
 #[cfg(target_family = "wasm")]
 pub use web::*;

frb_codegen/src/library/codegen/config/internal_config_parser/controller_parser.rs

@@ -1,19 +1,18 @@
 use crate::codegen::config::internal_config::ControllerInternalConfig;
-use crate::codegen::generator::misc::target::TargetOrCommonMap;
 use crate::codegen::MetaConfig;
-use std::path::{Path, PathBuf};
+use std::path::Path;
 
 pub(super) fn parse(
     meta_config: &MetaConfig,
     rust_crate_dir: &Path,
-    rust_output_path: &TargetOrCommonMap<PathBuf>,
+    rust_output_path: &Path,
 ) -> anyhow::Result<ControllerInternalConfig> {
     let watching_paths = vec![
         // The whole crate needs to be watched, because e.g. when a struct definition changes
         // in a non-input file, it may still cause the generated code to change.
         rust_crate_dir.join("src"),
     ];
-    let exclude_paths = rust_output_path.clone().into_vec();
+    let exclude_paths = vec![rust_output_path.to_owned()];
 
     Ok(ControllerInternalConfig {
         watch: meta_config.watch,

frb_codegen/src/library/codegen/config/internal_config_parser/generator_parser.rs

@@ -4,7 +4,6 @@ use crate::codegen::config::internal_config::{
 use crate::codegen::config::internal_config_parser::dart_path_parser::DartOutputPathPack;
 use crate::codegen::generator::api_dart::internal_config::GeneratorApiDartInternalConfig;
 use crate::codegen::generator::codec::structs::CodecMode;
-use crate::codegen::generator::misc::target::TargetOrCommonMap;
 use crate::codegen::generator::wire::c::internal_config::GeneratorWireCInternalConfig;
 use crate::codegen::generator::wire::dart::internal_config::{
     DartOutputClassNamePack, GeneratorWireDartDefaultExternalLibraryLoaderInternalConfig,
@@ -29,7 +28,7 @@ pub(super) struct Args<'a> {
     pub rust_crate_dir: &'a Path,
     pub dart_output_path_pack: &'a DartOutputPathPack,
     pub dart_output_class_name_pack: &'a DartOutputClassNamePack,
-    pub rust_output_path: &'a TargetOrCommonMap<PathBuf>,
+    pub rust_output_path: &'a Path,
     pub default_stream_sink_codec: CodecMode,
     pub default_rust_opaque_codec: RustOpaqueCodecMode,
     pub c_output_path: &'a Option<PathBuf>,
@@ -90,7 +89,7 @@ pub(super) fn parse(args: Args) -> anyhow::Result<GeneratorInternalConfig> {
             rust: GeneratorWireRustInternalConfig {
                 rust_crate_dir: rust_crate_dir.to_owned(),
                 web_enabled,
-                rust_output_path: rust_output_path.clone(),
+                rust_output_path: rust_output_path.to_owned(),
                 c_symbol_prefix: c_symbol_prefix.clone(),
                 has_ffigen: full_dep,
                 default_stream_sink_codec,
@@ -100,7 +99,7 @@ pub(super) fn parse(args: Args) -> anyhow::Result<GeneratorInternalConfig> {
             c: GeneratorWireCInternalConfig {
                 enable: full_dep,
                 rust_crate_dir: rust_crate_dir.to_owned(),
-                rust_output_path: rust_output_path.clone(),
+                rust_output_path: rust_output_path.to_owned(),
                 c_output_path: c_output_path.clone(),
                 c_symbol_prefix,
             },

frb_codegen/src/library/codegen/config/internal_config_parser/mod.rs

@@ -244,12 +244,9 @@ mod tests {
 
         assert!(result.is_err());
         let error = result.err().unwrap();
-        assert!(error.to_string().contains("rust_output: is wrong:"));
         assert!(error
-            .source()
-            .unwrap()
             .to_string()
-            .contains("A path for input/output needs to include the file name"));
+            .contains("Rust output path needs to include the file name."));
         Ok(())
     }
 }

frb_codegen/src/library/codegen/config/internal_config_parser/rust_path_parser.rs

@@ -1,19 +1,17 @@
-use crate::codegen::config::internal_config_parser::dart_path_parser::compute_path_map;
 use crate::codegen::config::internal_config_parser::rust_path_migrator::ConfigRustRootAndRustInput;
-use crate::codegen::generator::misc::target::TargetOrCommonMap;
 use crate::codegen::parser::mir::internal_config::RustInputNamespacePack;
 use crate::utils::crate_name::CrateName;
 use crate::utils::namespace::Namespace;
 use crate::utils::path_utils::canonicalize_with_error_message;
-use anyhow::Context;
+use anyhow::ensure;
 use itertools::Itertools;
 use std::path::{Path, PathBuf};
 
 pub(super) struct RustInputInfo {
     pub rust_crate_dir: PathBuf,
     pub third_party_crate_names: Vec<CrateName>,
     pub rust_input_namespace_pack: RustInputNamespacePack,
-    pub rust_output_path: TargetOrCommonMap<PathBuf>,
+    pub rust_output_path: PathBuf,
 }
 
 pub(super) fn compute_rust_path_info(
@@ -28,7 +26,7 @@ pub(super) fn compute_rust_path_info(
     let rust_output_path = compute_rust_output_path(config_rust_output, base_dir, &rust_crate_dir)?;
 
     let rust_output_path_namespace =
-        Namespace::new_from_rust_crate_path(&rust_output_path.common, &rust_crate_dir)?;
+        Namespace::new_from_rust_crate_path(&rust_output_path, &rust_crate_dir)?;
 
     Ok(RustInputInfo {
         rust_crate_dir,
@@ -79,12 +77,21 @@ fn compute_rust_output_path(
     config_rust_output: &Option<String>,
     base_dir: &Path,
     rust_crate_dir: &Path,
-) -> anyhow::Result<TargetOrCommonMap<PathBuf>> {
-    let path_common = base_dir.join(
+) -> anyhow::Result<PathBuf> {
+    let ans = base_dir.join(
         (config_rust_output.clone().map(PathBuf::from))
             .unwrap_or_else(|| fallback_rust_output_path(rust_crate_dir)),
     );
-    compute_path_map(&path_common).context("rust_output: is wrong: ")
+
+    // We do not care about codecov for this, since it is just a sanity check warning
+    // frb-coverage:ignore-start
+    ensure!(
+        ans.extension().is_some(),
+        "Rust output path needs to include the file name."
+    );
+    // frb-coverage:ignore-end
+
+    Ok(ans)
 }
 
 fn fallback_rust_output_path(rust_crate_dir: &Path) -> PathBuf {

frb_codegen/src/library/codegen/generator/api_dart/spec_generator/class/method.rs

@@ -231,10 +231,14 @@ fn generate_signature(
 ) -> String {
     let is_static_method = method_info.mode == MirFuncOwnerInfoMethodMode::Static;
     let maybe_static = if is_static_method { "static" } else { "" };
-    let return_type = &api_dart_func.func_return_type;
-    let (func_params, maybe_accessor) = match func.accessor {
-        Some(MirFuncAccessorMode::Getter) => ("".to_owned(), "get"),
+    let (return_type, func_params, maybe_accessor) = match func.accessor {
+        Some(MirFuncAccessorMode::Getter) => (
+            api_dart_func.func_return_type.as_ref(),
+            "".to_owned(),
+            "get",
+        ),
         Some(MirFuncAccessorMode::Setter) => (
+            "",
             // TODO: merge with below
             format!(
                 "({})",
@@ -245,6 +249,7 @@ fn generate_signature(
             "set",
         ),
         None => (
+            api_dart_func.func_return_type.as_ref(),
             format!("({})", compute_params_str(func_params, func.arg_mode)),
             "",
         ),

frb_codegen/src/library/codegen/generator/wire/c/internal_config.rs

@@ -1,12 +1,11 @@
-use crate::codegen::generator::misc::target::TargetOrCommonMap;
 use serde::{Deserialize, Serialize};
 use std::path::PathBuf;
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub(crate) struct GeneratorWireCInternalConfig {
     pub(crate) enable: bool,
     pub(crate) rust_crate_dir: PathBuf,
-    pub(crate) rust_output_path: TargetOrCommonMap<PathBuf>,
+    pub(crate) rust_output_path: PathBuf,
     pub(crate) c_output_path: Option<PathBuf>,
     pub(crate) c_symbol_prefix: String,
 }

frb_codegen/src/library/codegen/generator/wire/dart/spec_generator/misc/mod.rs

@@ -8,6 +8,7 @@
 };
 use crate::codegen::generator::wire::dart::spec_generator::output_code::WireDartOutputCode;
 use crate::codegen::generator::wire::rust::spec_generator::extern_func::ExternFunc;
+use crate::codegen::ir::mir::func::MirFuncMode;
 use crate::codegen::ir::mir::pack::MirPackComputedCache;
 use crate::codegen::misc::GeneratorProgressBarPack;
 use crate::library::codegen::generator::wire::dart::spec_generator::misc::ty::WireDartGeneratorMiscTrait;
@@ -29,6 +30,7 @@
     pub(crate) boilerplate: Acc<Vec<WireDartOutputCode>>,
     pub(crate) api_impl_normal_functions: Vec<WireDartOutputCode>,
     pub(crate) extra_functions: Acc<Vec<WireDartOutputCode>>,
+    pub(crate) extra_from_parser: Acc<Vec<WireDartOutputCode>>,
 }
 
 #[allow(clippy::too_many_arguments)]
@@ -63,6 +65,11 @@
         extra_functions: (cache.distinct_types.iter())
             .flat_map(|ty| WireDartGenerator::new(ty.clone(), context).generate_extra_functions())
             .collect(),
+        extra_from_parser: Acc::new_common(vec![WireDartOutputCode {
+            header: context.mir_pack.extra_dart_output_code.header.clone(),
+            body: context.mir_pack.extra_dart_output_code.body.clone(),
+            ..Default::default()
+        }]),
     })
 }
 
@@ -102,7 +109,17 @@
 
     let execute_rust_initializers = (context.mir_pack.funcs_with_impl().iter())
         .filter(|f| f.initializer)
-        .map(|f| format!("await api.{}();\n", f.name_dart_wire()))
+        .map(|f| {
+            format!(
+                "{maybe_await}api.{name}();\n",
+                maybe_await = if f.mode == MirFuncMode::Normal {
+                    "await "
+                } else {
+                    ""
+                },
+                name = f.name_dart_wire()
+            )
+        })
         .join("");
 
     let codegen_version = env!("CARGO_PKG_VERSION");

frb_codegen/src/library/codegen/generator/wire/dart/text_generator.rs

@@ -39,6 +39,7 @@ fn generate_merged_code(spec: &WireDartOutputSpec) -> Acc<WireDartOutputCode> {
     );
     // add("wire_delegate_functions", &spec.misc.wire_delegate_functions);
     add("extra_functions", &spec.misc.extra_functions);
+    add("extra_from_parser", &spec.misc.extra_from_parser);
     add("wire_class", &spec.misc.wire_class);
     add("rust2dart", &spec.rust2dart.inner);
     add("dart2rust", &spec.dart2rust.inner);

frb_codegen/src/library/codegen/generator/wire/rust/internal_config.rs

@@ -1,5 +1,4 @@
 use crate::codegen::generator::codec::structs::CodecMode;
-use crate::codegen::generator::misc::target::TargetOrCommonMap;
 use crate::codegen::ir::mir::ty::rust_opaque::RustOpaqueCodecMode;
 use serde::{Deserialize, Serialize};
 use std::path::PathBuf;
@@ -8,7 +7,7 @@ use std::path::PathBuf;
 pub(crate) struct GeneratorWireRustInternalConfig {
     pub rust_crate_dir: PathBuf,
     pub web_enabled: bool,
-    pub rust_output_path: TargetOrCommonMap<PathBuf>,
+    pub rust_output_path: PathBuf,
     pub c_symbol_prefix: String,
     pub has_ffigen: bool,
     pub default_stream_sink_codec: CodecMode,