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Type checking is broken #6

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DartBot opened this issue Oct 10, 2011 · 7 comments
Closed

Type checking is broken #6

DartBot opened this issue Oct 10, 2011 · 7 comments

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DartBot commented Oct 10, 2011

This issue was originally filed by [email protected]


Use dartc_test to run:

bool foo(bool bar()) => bar();

bool bar() {}

main() {
  foo(bar);
}

with --enable_type_checks.

An error is thrown because the type of bar is not bool.

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DartBot commented Oct 10, 2011

This comment was originally written by [email protected]


Just to be more clear, test.py —checked should turn on the type checks. Support was only added a few days ago. A fresh build and Ben got them to work in as much as they are supported.


Added Invalid label.

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DartBot commented Oct 10, 2011

This comment was originally written by [email protected]


Added Accepted label.

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DartBot commented Oct 10, 2011

This comment was originally written by [email protected]


bool foo(bool bar()) => bar();

bool baz() => true;

main() {
 Expect.equals(true, foo(baz));
}

When run with --enable_type_checks, this should produce no errors, but instead I get:

$ dart --enable_type_checks /tmp/foo3.dart
/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:403: [object Object]
  throw e;
        ^
[object Object]
    at $Dart$ThrowException (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:401:11)
    at $te (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1701:3)
    at $chk (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1688:3)
    at unnamed7e6fa6$foo$member (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:18591:3)
    at unnamed7e6fa6$main$member (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:18616:35)
    at /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1079:5
    at isolate$Isolate.run (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:869:14)
    at isolate$IsolateEvent.process (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:905:16)
    at isolate$doOneEventLoopIteration (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1038:11)
    at isolate$doRunEventLoop (/tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1054:26)
Execution failed.
Mapped stack trace:
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:401:11 ($Dart$ThrowException)
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1701:3 ($te)
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1688:3 ($chk)
    at MAPPED : file:/tmp/foo3.dart/foo3.dart:1:10 (unnamed7e6fa6$foo$member)
    at MAPPED : file:/tmp/foo3.dart/foo3.dart:6:22 (unnamed7e6fa6$main$member)
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1079:5
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:869:14 (isolate$Isolate.run)
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:905:16 (isolate$IsolateEvent.process)
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1038:11 (isolate$doOneEventLoopIteration)
    at UNMAPPED: /tmp/dart_file:_tmp_foo3.dart3547703831643974851.js:1054:26 (isolate$doRunEventLoop)

V8 execution returned non-zero exit-code: 1


Set owner to [email protected].
Removed Priority-High label.
Added Priority-Medium, Area-Compiler labels.

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DartBot commented Oct 25, 2011

This comment was originally written by [email protected]


Set owner to [email protected].
Added Started label.

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DartBot commented Oct 25, 2011

This comment was originally written by [email protected]


I have a fix I will be landing today that addresses this.

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DartBot commented Oct 25, 2011

This comment was originally written by [email protected]


Sorry, jat. I assumed that a patch was not forth coming. Assigned back to you.


Set owner to [email protected].

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DartBot commented Nov 1, 2011

This comment was originally written by [email protected]


JAT, I believe that your commit, http://code.google.com/p/dart/source/detail?r=975 fixed this issue. Please reopen if that is not the case.


Added Fixed label.

copybara-service bot pushed a commit that referenced this issue Oct 22, 2024
See: b/374689139.

https://dart-review.googlesource.com/c/sdk/+/390941 is blocking an SDK roll.

Root cause:


```
Action threw an exception: type 'ConstructorMember' is not a subtype of type 'ConstructorFragment' in type cast
#0      InterfaceTypeImpl.constructors2.<anonymous closure> (package:analyzer/src/dart/element/type.dart:569)
#1      MappedListIterable.elementAt (dart:_internal/iterable.dart:435)
#2      ListIterator.moveNext (dart:_internal/iterable.dart:364)
#3      new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189)
#4      new _GrowableList.of (dart:core-patch/growable_array.dart:150)
#5      new List.of (dart:core-patch/array_patch.dart:39)
#6      ListIterable.toList (dart:_internal/iterable.dart:224)
#7      InterfaceTypeImpl.constructors2 (package:analyzer/src/dart/element/type.dart:570)
#8      _Visitor._hasConstConstructorInvocation (package:linter/src/rules/prefer_const_constructors_in_immutables.dart:110)
#9      _Visitor.visitConstructorDeclaration (package:linter/src/rules/prefer_const_constructors_in_immutables.dart:58)
```


To verify the fix locally:

```
  solo_test_X() async {
    await assertNoErrorsInCode(r'''
class A<T> {}
''');

    var A = findElement.class_('A').instantiate(
      typeArguments: [intType],
      nullabilitySuffix: NullabilitySuffix.none,
    );
    A.constructors2;
  }
```


Bug: b/374689139
Change-Id: I70034d938d840dc0c3939db27e7116164e4617e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/391483
Reviewed-by: Konstantin Shcheglov <[email protected]>
Commit-Queue: Phil Quitslund <[email protected]>
This issue was closed.
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