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1f55b7ca10
This is a reland of 8a21ab195a
Original change's description:
> [VM/runtime] Refactor the representation of type parameters in the VM.
>
> This introduces a new VM internal class 'TypeParameters' representing the declaration of a list of type parameters, either in a class or function.
> The reference to (or use of) a type parameter is still represented by the existing 'TypeParameter' class.
>
> Fixes https://github.com/dart-lang/sdk/issues/43901
> Fixes https://github.com/dart-lang/sdk/issues/45763
>
> TEST=existing ones and a regression test
>
> Change-Id: I1fde808bf753cc1cb829f2c4383c1836651cee80
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/189942
> Commit-Queue: Régis Crelier <regis@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
This fixes https://github.com/dart-lang/sdk/issues/45911
TEST=existing ones and a regression test
Change-Id: I709d38b1df3d73fe3c9796d5aca3cbbdcf77fd38
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/198380
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
59 lines
2.8 KiB
Dart
59 lines
2.8 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library test.generic_bounded;
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import 'dart:mirrors';
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import 'package:expect/expect.dart';
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import 'generics_helper.dart';
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class Super<T extends num> {}
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class Fixed extends Super<int> {}
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class Generic<R> extends Super<R> {} // //# 02: compile-time error
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class Malbounded extends Super<String> {} //# 01: compile-time error
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main() {
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ClassMirror superDecl = reflectClass(Super);
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ClassMirror superOfInt = reflectClass(Fixed).superclass!;
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ClassMirror genericDecl = reflectClass(Generic); // //# 02: continued
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ClassMirror superOfR = genericDecl.superclass!; // //# 02: continued
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ClassMirror genericOfDouble = reflect(new Generic<double>()).type; // //# 02: continued
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ClassMirror superOfDouble = genericOfDouble.superclass!; // //# 02: continued
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ClassMirror genericOfBool = reflect(new Generic<bool>()).type; // //# 02: compile-time error
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ClassMirror superOfBool = genericOfBool.superclass!; // //# 02: continued
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Expect.isFalse(genericOfBool.isOriginalDeclaration); // //# 02: continued
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Expect.isFalse(superOfBool.isOriginalDeclaration); // //# 02: continued
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typeParameters(genericOfBool, [#R]); // //# 02: continued
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typeParameters(superOfBool, [#T]); // //# 02: continued
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typeArguments(genericOfBool, [reflectClass(bool)]); // //# 02: continued
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typeArguments(superOfBool, [reflectClass(bool)]); // //# 02: continued
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ClassMirror superOfString = reflectClass(Malbounded).superclass!; // //# 01: continued
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Expect.isTrue(superDecl.isOriginalDeclaration);
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Expect.isFalse(superOfInt.isOriginalDeclaration);
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Expect.isTrue(genericDecl.isOriginalDeclaration); // //# 02: continued
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Expect.isFalse(superOfR.isOriginalDeclaration); // //# 02: continued
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Expect.isFalse(genericOfDouble.isOriginalDeclaration); // //# 02: continued
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Expect.isFalse(superOfDouble.isOriginalDeclaration); // //# 02: continued
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Expect.isFalse(superOfString.isOriginalDeclaration); // //# 01: continued
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TypeVariableMirror tFromSuper = superDecl.typeVariables.single;
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TypeVariableMirror rFromGeneric = genericDecl.typeVariables.single; // //# 02: continued
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Expect.equals(reflectClass(num), tFromSuper.upperBound);
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Expect.equals(reflectClass(Object), rFromGeneric.upperBound); // //# 02: continued
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typeArguments(superDecl, []);
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typeArguments(superOfInt, [reflectClass(int)]);
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typeArguments(genericDecl, []); // //# 02: continued
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typeArguments(superOfR, [rFromGeneric]); // //# 02: continued
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typeArguments(genericOfDouble, [reflectClass(double)]); // //# 02: continued
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typeArguments(superOfDouble, [reflectClass(double)]); // //# 02: continued
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typeArguments(superOfString, [reflectClass(String)]); // //# 01: continued
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}
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