blob: e93560a3a725ae64e1d7324e6a69a3c0c8174b6e [file] [log] [blame]
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'dart:async';
import 'package:analyzer/dart/ast/ast.dart';
import 'package:analyzer/dart/element/element.dart';
import 'package:analyzer/src/dart/ast/ast.dart';
import 'package:analyzer/src/dart/ast/utilities.dart';
import 'package:analyzer/src/dart/element/element.dart';
import 'package:analyzer/src/generated/declaration_resolver.dart';
import 'package:analyzer/src/generated/engine.dart';
import 'package:analyzer/src/generated/source.dart';
import 'package:analyzer/src/task/api/dart.dart';
import 'package:analyzer/src/task/dart.dart';
import 'package:test/test.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';
import 'resolver_test_case.dart';
import 'test_support.dart';
main() {
defineReflectiveSuite(() {
defineReflectiveTests(DeclarationResolverMetadataTest);
defineReflectiveTests(DeclarationResolverTest);
defineReflectiveTests(StrongModeDeclarationResolverTest);
});
}
CompilationUnit _cloneResolveUnit(CompilationUnit unit) {
CompilationUnit clonedUnit = AstCloner.clone(unit);
new DeclarationResolver().resolve(clonedUnit, unit.element);
return clonedUnit;
}
SimpleIdentifier _findSimpleIdentifier(
AstNode root, String code, String search) {
return EngineTestCase.findNode(
root, code, search, (n) => n is SimpleIdentifier);
}
@reflectiveTest
class DeclarationResolverMetadataTest extends ResolverTestCase {
String code;
CompilationUnit unit;
CompilationUnit unit2;
void checkMetadata(String search, {bool expectDifferent: false}) {
NodeList<Annotation> metadata = _findMetadata(unit, search);
NodeList<Annotation> metadata2 = _findMetadata(unit2, search);
expect(metadata, isNotEmpty);
for (int i = 0; i < metadata.length; i++) {
Matcher expectation = same(metadata[i].elementAnnotation);
if (expectDifferent) {
expectation = isNot(expectation);
}
expect(metadata2[i].elementAnnotation, expectation);
}
}
Future<Null> setupCode(String code) async {
this.code = code;
unit = await resolveSource(code + ' const a = null;');
unit2 = _cloneResolveUnit(unit);
}
test_metadata_classDeclaration() async {
await setupCode('@a class C {}');
checkMetadata('C');
}
test_metadata_classTypeAlias() async {
await setupCode('@a class C = D with E; class D {} class E {}');
checkMetadata('C');
}
test_metadata_constructorDeclaration_named() async {
await setupCode('class C { @a C.x(); }');
checkMetadata('x');
}
test_metadata_constructorDeclaration_unnamed() async {
await setupCode('class C { @a C(); }');
checkMetadata('C()');
}
test_metadata_declaredIdentifier() async {
await setupCode('f(x, y) { for (@a var x in y) {} }');
checkMetadata('var', expectDifferent: true);
}
test_metadata_enumDeclaration() async {
await setupCode('@a enum E { v }');
checkMetadata('E');
}
test_metadata_enumDeclaration_constant() async {
await setupCode('enum E { @a v }');
checkMetadata('v');
}
test_metadata_exportDirective() async {
addNamedSource('/foo.dart', 'class C {}');
await setupCode('@a export "foo.dart";');
checkMetadata('export');
}
test_metadata_exportDirective_resynthesized() async {
CompilationUnit unit = await resolveSource(r'''
@a
export "dart:async";
@b
export "dart:math";
const a = null;
const b = null;
''');
expect(unit.directives[0].metadata.single.name.name, 'a');
expect(unit.directives[1].metadata.single.name.name, 'b');
var unitElement = unit.element as CompilationUnitElementImpl;
// Damage the unit element - as if "setAnnotations" were not called.
// The ExportElement(s) still have the metadata, we should use it.
unitElement.setAnnotations(unit.directives[0].offset, []);
unitElement.setAnnotations(unit.directives[1].offset, []);
expect(unitElement.library.exports[0].metadata, hasLength(1));
expect(unitElement.library.exports[1].metadata, hasLength(1));
// DeclarationResolver on the clone should succeed.
CompilationUnit clonedUnit = AstCloner.clone(unit);
new DeclarationResolver().resolve(clonedUnit, unit.element);
expect(unit.directives[0].metadata.single.name.name, 'a');
expect(unit.directives[1].metadata.single.name.name, 'b');
}
test_metadata_fieldDeclaration() async {
await setupCode('class C { @a int x; }');
checkMetadata('x');
}
test_metadata_fieldFormalParameter() async {
await setupCode('class C { var x; C(@a this.x); }');
checkMetadata('this');
}
test_metadata_fieldFormalParameter_withDefault() async {
await setupCode('class C { var x; C([@a this.x = null]); }');
checkMetadata('this');
}
test_metadata_functionDeclaration_function() async {
await setupCode('@a f() {}');
checkMetadata('f');
}
test_metadata_functionDeclaration_getter() async {
await setupCode('@a get f() => null;');
checkMetadata('f');
}
test_metadata_functionDeclaration_setter() async {
await setupCode('@a set f(value) {}');
checkMetadata('f');
}
test_metadata_functionTypeAlias() async {
await setupCode('@a typedef F();');
checkMetadata('F');
}
test_metadata_functionTypedFormalParameter() async {
await setupCode('f(@a g()) {}');
checkMetadata('g');
}
test_metadata_functionTypedFormalParameter_withDefault() async {
await setupCode('f([@a g() = null]) {}');
checkMetadata('g');
}
test_metadata_importDirective() async {
addNamedSource('/foo.dart', 'class C {}');
await setupCode('@a import "foo.dart";');
checkMetadata('import');
}
test_metadata_importDirective_partiallyResolved() async {
addNamedSource('/foo.dart', 'class C {}');
this.code = 'const a = null; @a import "foo.dart";';
Source source = addNamedSource('/test.dart', code);
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
analysisContext.computeResult(source, LIBRARY_ELEMENT1);
unit = analysisContext.computeResult(target, RESOLVED_UNIT1);
unit2 = _cloneResolveUnit(unit);
checkMetadata('import');
}
test_metadata_importDirective_resynthesized() async {
CompilationUnit unit = await resolveSource(r'''
@a
import "dart:async";
@b
import "dart:math";
const a = null;
const b = null;
''');
expect(unit.directives[0].metadata.single.name.name, 'a');
expect(unit.directives[1].metadata.single.name.name, 'b');
var unitElement = unit.element as CompilationUnitElementImpl;
// Damage the unit element - as if "setAnnotations" were not called.
// The ImportElement(s) still have the metadata, we should use it.
unitElement.setAnnotations(unit.directives[0].offset, []);
unitElement.setAnnotations(unit.directives[1].offset, []);
expect(unitElement.library.imports[0].metadata, hasLength(1));
expect(unitElement.library.imports[1].metadata, hasLength(1));
// DeclarationResolver on the clone should succeed.
CompilationUnit clonedUnit = AstCloner.clone(unit);
new DeclarationResolver().resolve(clonedUnit, unit.element);
expect(unit.directives[0].metadata.single.name.name, 'a');
expect(unit.directives[1].metadata.single.name.name, 'b');
}
test_metadata_libraryDirective() async {
await setupCode('@a library L;');
checkMetadata('L');
}
test_metadata_libraryDirective_resynthesized() async {
CompilationUnit unit = await resolveSource('@a library L; const a = null;');
expect(unit.directives.single.metadata.single.name.name, 'a');
var unitElement = unit.element as CompilationUnitElementImpl;
// Damage the unit element - as if "setAnnotations" were not called.
// The LibraryElement still has the metadata, we should use it.
unitElement.setAnnotations(unit.directives.single.offset, []);
expect(unitElement.library.metadata, hasLength(1));
// DeclarationResolver on the clone should succeed.
CompilationUnit clonedUnit = AstCloner.clone(unit);
new DeclarationResolver().resolve(clonedUnit, unit.element);
expect(clonedUnit.directives.single.metadata.single.name.name, 'a');
}
test_metadata_localFunctionDeclaration() async {
await setupCode('f() { @a g() {} }');
// Note: metadata on local function declarations is ignored by the
// analyzer. TODO(paulberry): is this a bug?
FunctionDeclaration node = EngineTestCase.findNode(
unit, code, 'g', (AstNode n) => n is FunctionDeclaration);
NodeList<Annotation> metadata = (node as FunctionDeclarationImpl).metadata;
if (usingFastaParser) {
expect(metadata, hasLength(1));
} else {
expect(metadata, isEmpty);
}
}
test_metadata_localVariableDeclaration() async {
await setupCode('f() { @a int x; }');
checkMetadata('x', expectDifferent: true);
}
test_metadata_methodDeclaration_getter() async {
await setupCode('class C { @a get m => null; }');
checkMetadata('m');
}
test_metadata_methodDeclaration_method() async {
await setupCode('class C { @a m() {} }');
checkMetadata('m');
}
test_metadata_methodDeclaration_setter() async {
await setupCode('class C { @a set m(value) {} }');
checkMetadata('m');
}
test_metadata_partDirective() async {
addNamedSource('/foo.dart', 'part of L;');
await setupCode('library L; @a part "foo.dart";');
checkMetadata('part');
}
test_metadata_partDirective_resynthesized() async {
addNamedSource('/part_a.dart', 'part of L;');
addNamedSource('/part_b.dart', 'part of L;');
CompilationUnit unit = await resolveSource(r'''
library L;
@a
part "part_a.dart";
@b
part "part_b.dart";
const a = null;
const b = null;
''');
expect(unit.directives[1].metadata.single.name.name, 'a');
expect(unit.directives[2].metadata.single.name.name, 'b');
var unitElement = unit.element as CompilationUnitElementImpl;
// Damage the unit element - as if "setAnnotations" were not called.
// The ImportElement(s) still have the metadata, we should use it.
unitElement.setAnnotations(unit.directives[1].offset, []);
unitElement.setAnnotations(unit.directives[2].offset, []);
expect(unitElement.library.parts[0].metadata, hasLength(1));
expect(unitElement.library.parts[1].metadata, hasLength(1));
// DeclarationResolver on the clone should succeed.
CompilationUnit clonedUnit = AstCloner.clone(unit);
new DeclarationResolver().resolve(clonedUnit, unit.element);
expect(unit.directives[1].metadata.single.name.name, 'a');
expect(unit.directives[2].metadata.single.name.name, 'b');
}
test_metadata_simpleFormalParameter() async {
await setupCode('f(@a x) {}) {}');
checkMetadata('x');
}
test_metadata_simpleFormalParameter_withDefault() async {
await setupCode('f([@a x = null]) {}');
checkMetadata('x');
}
test_metadata_topLevelVariableDeclaration() async {
await setupCode('@a int x;');
checkMetadata('x');
}
test_metadata_typeParameter_ofClass() async {
await setupCode('class C<@a T> {}');
checkMetadata('T');
}
test_metadata_typeParameter_ofClassTypeAlias() async {
await setupCode('class C<@a T> = D with E; class D {} class E {}');
checkMetadata('T');
}
test_metadata_typeParameter_ofFunction() async {
await setupCode('f<@a T>() {}');
checkMetadata('T');
}
test_metadata_typeParameter_ofTypedef() async {
await setupCode('typedef F<@a T>();');
checkMetadata('T');
}
NodeList<Annotation> _findMetadata(CompilationUnit unit, String search) {
AstNode node =
EngineTestCase.findNode(unit, code, search, (AstNode _) => true);
while (node != null) {
if (node is AnnotatedNode && node.metadata.isNotEmpty) {
return node.metadata;
}
if (node is NormalFormalParameter && node.metadata.isNotEmpty) {
return node.metadata;
}
node = node.parent;
}
fail('Node not found');
}
}
@reflectiveTest
class DeclarationResolverTest extends ResolverTestCase {
@override
void setUp() {
super.setUp();
}
test_closure_inside_catch_block() async {
String code = '''
f() {
try {
} catch (e) {
return () => null;
}
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_closure_inside_labeled_statement() async {
String code = '''
f(b) {
foo: while (true) {
if (b) {
break foo;
}
return () => null;
}
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_closure_inside_switch_case() async {
String code = '''
void f(k, m) {
switch (k) {
case 0:
m.forEach((key, value) {});
break;
}
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_closure_inside_switch_default() async {
String code = '''
void f(k, m) {
switch (k) {
default:
m.forEach((key, value) {});
break;
}
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_enumConstant_partiallyResolved() async {
String code = r'''
enum Fruit {apple, pear}
''';
Source source = addNamedSource('/test.dart', code);
LibrarySpecificUnit target = new LibrarySpecificUnit(source, source);
analysisContext.computeResult(source, LIBRARY_ELEMENT1);
CompilationUnit unit =
analysisContext.computeResult(target, RESOLVED_UNIT1);
_cloneResolveUnit(unit);
}
test_functionDeclaration_getter() async {
String code = r'''
int get zzz => 42;
''';
CompilationUnit unit = await resolveSource(code);
PropertyAccessorElement getterElement =
_findSimpleIdentifier(unit, code, 'zzz =>').staticElement;
expect(getterElement.isGetter, isTrue);
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier getterName = _findSimpleIdentifier(unit2, code, 'zzz =>');
expect(getterName.staticElement, same(getterElement));
}
test_functionDeclaration_setter() async {
String code = r'''
void set zzz(_) {}
''';
CompilationUnit unit = await resolveSource(code);
PropertyAccessorElement setterElement =
_findSimpleIdentifier(unit, code, 'zzz(_)').staticElement;
expect(setterElement.isSetter, isTrue);
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier getterName = _findSimpleIdentifier(unit2, code, 'zzz(_)');
expect(getterName.staticElement, same(setterElement));
}
test_genericFunction_asFunctionReturnType() async {
String code = r'''
Function(int, String) f() => null;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asGenericFunctionReturnType() async {
String code = r'''
typedef F<T> = int Function(T t, S s) Function<S>(int);
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asMethodReturnType() async {
String code = r'''
class C {
Function(int, String) m() => null;
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asParameterReturnType() async {
String code = r'''
f(Function(int, String) p) => null;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asTopLevelVariableType() async {
String code = r'''
int Function(int, String) v;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asTypeArgument() async {
String code = r'''
List<Function(int)> v;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asTypeArgument_lessNodes() async {
String code = r'''
Map<Function<int>> v;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asTypeArgument_moreNodes() async {
String code = r'''
List<Function<int>, Function<String>> v;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asTypeArgument_noNodes() async {
String code = r'''
List v;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_genericFunction_asTypeArgument_ofInitializer() async {
String code = r'''
var v = <Function(int)>[];
''';
CompilationUnit unit = await resolveSource(code);
CompilationUnit newUnit = _cloneResolveUnit(unit);
var v = newUnit.declarations[0] as TopLevelVariableDeclaration;
var initializer = v.variables.variables[0].initializer as ListLiteral;
expect(initializer.typeArguments.arguments[0].type, isNotNull);
}
test_genericFunction_invalid_missingParameterName() async {
String code = r'''
typedef F = Function({int});
''';
CompilationUnit unit = await resolveSource(code);
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_invalid_functionDeclaration_getter_inFunction() async {
String code = r'''
var v = (() {
main() {
int get zzz => 42;
}
});
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier getterName = _findSimpleIdentifier(unit2, code, 'zzz =>');
// Local getters are not allowed, so a FunctionElement is created.
expect(getterName.staticElement, new isInstanceOf<FunctionElement>());
}
test_invalid_functionDeclaration_setter_inFunction() async {
String code = r'''
var v = (() {
main() {
set zzz(x) {}
}
});
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier setterName = _findSimpleIdentifier(unit2, code, 'zzz(x)');
// Local getters are not allowed, so a FunctionElement is created.
expect(setterName.staticElement, new isInstanceOf<FunctionElement>());
}
test_visitExportDirective_notExistingSource() async {
String code = r'''
export 'foo.dart';
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitExportDirective_unresolvedUri() async {
String code = r'''
export 'package:foo/bar.dart';
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitFunctionExpression() async {
String code = r'''
main(List<String> items) {
items.forEach((item) {});
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitGenericTypeAlias_0() async {
String code = r'''
typedef F<T> = Function<S>(List<S> list, Function<A>(A), T);
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitGenericTypeAlias_1() async {
String code = r'''
typedef F = Function({int});
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitGenericTypeAlias_2() async {
String code = r'''
typedef F = int;
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitImportDirective_notExistingSource() async {
String code = r'''
import 'foo.dart';
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitImportDirective_unresolvedUri() async {
String code = r'''
import 'package:foo/bar.dart';
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitMethodDeclaration_getter_duplicate() async {
String code = r'''
class C {
int get zzz => 1;
String get zzz => null;
}
''';
CompilationUnit unit = await resolveSource(code);
PropertyAccessorElement firstElement =
_findSimpleIdentifier(unit, code, 'zzz => 1').staticElement;
PropertyAccessorElement secondElement =
_findSimpleIdentifier(unit, code, 'zzz => null').staticElement;
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier firstName = _findSimpleIdentifier(unit2, code, 'zzz => 1');
SimpleIdentifier secondName =
_findSimpleIdentifier(unit2, code, 'zzz => null');
expect(firstName.staticElement, same(firstElement));
expect(secondName.staticElement, same(secondElement));
}
test_visitMethodDeclaration_getterSetter() async {
String code = r'''
class C {
int _field = 0;
int get field => _field;
void set field(value) {_field = value;}
}
''';
CompilationUnit unit = await resolveSource(code);
FieldElement getterElement =
_findSimpleIdentifier(unit, code, 'field =').staticElement;
PropertyAccessorElement setterElement =
_findSimpleIdentifier(unit, code, 'field(').staticElement;
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier getterName = _findSimpleIdentifier(unit2, code, 'field =');
SimpleIdentifier setterName = _findSimpleIdentifier(unit2, code, 'field(');
expect(getterName.staticElement, same(getterElement));
expect(setterName.staticElement, same(setterElement));
}
test_visitMethodDeclaration_method_duplicate() async {
String code = r'''
class C {
void zzz(x) {}
void zzz(y) {}
}
''';
CompilationUnit unit = await resolveSource(code);
MethodElement firstElement =
_findSimpleIdentifier(unit, code, 'zzz(x)').staticElement;
MethodElement secondElement =
_findSimpleIdentifier(unit, code, 'zzz(y)').staticElement;
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier firstName = _findSimpleIdentifier(unit2, code, 'zzz(x)');
SimpleIdentifier secondName = _findSimpleIdentifier(unit2, code, 'zzz(y)');
expect(firstName.staticElement, same(firstElement));
expect(secondName.staticElement, same(secondElement));
}
test_visitMethodDeclaration_setter_duplicate() async {
// https://github.com/dart-lang/sdk/issues/25601
String code = r'''
class C {
set zzz(x) {}
set zzz(y) {}
}
''';
CompilationUnit unit = await resolveSource(code);
PropertyAccessorElement firstElement =
_findSimpleIdentifier(unit, code, 'zzz(x)').staticElement;
PropertyAccessorElement secondElement =
_findSimpleIdentifier(unit, code, 'zzz(y)').staticElement;
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
SimpleIdentifier firstName = _findSimpleIdentifier(unit2, code, 'zzz(x)');
SimpleIdentifier secondName = _findSimpleIdentifier(unit2, code, 'zzz(y)');
expect(firstName.staticElement, same(firstElement));
expect(secondName.staticElement, same(secondElement));
}
test_visitMethodDeclaration_unaryMinus() async {
String code = r'''
class C {
C operator -() => null;
C operator -(C other) => null;
}
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
test_visitPartDirective_notExistingSource() async {
String code = r'''
part 'foo.bar';
''';
CompilationUnit unit = await resolveSource(code);
// re-resolve
_cloneResolveUnit(unit);
// no other validations than built into DeclarationResolver
}
}
/**
* Strong mode DeclarationResolver tests
*/
@reflectiveTest
class StrongModeDeclarationResolverTest extends ResolverTestCase {
@override
void setUp() {
resetWith(options: new AnalysisOptionsImpl()..strongMode = true);
}
test_genericFunction_typeParameter() async {
// Fasta ignores generic type comments
if (usingFastaParser) return;
String code = r'''
/*=T*/ max/*<T>*/(/*=T*/ x, /*=T*/ y) => null;
''';
CompilationUnit unit = await resolveSource(code);
FunctionDeclaration node = _findSimpleIdentifier(unit, code, 'max').parent;
TypeParameter t = node.functionExpression.typeParameters.typeParameters[0];
FunctionElement element = node.name.staticElement;
TypeParameterElement tElement = element.typeParameters[0];
expect(tElement, isNotNull);
expect(element.typeParameters.toString(), "[T]");
expect(element.type.toString(), "<T>(T, T) → T");
expect(t.element, same(tElement));
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
node = _findSimpleIdentifier(unit2, code, 'max').parent;
t = node.functionExpression.typeParameters.typeParameters[0];
expect(t.element, same(tElement));
}
test_genericMethod_typeParameter() async {
// Fasta ignores generic type comments
if (usingFastaParser) return;
String code = r'''
class C {
/*=T*/ max/*<T>*/(/*=T*/ x, /*=T*/ y) => null;
}
''';
CompilationUnit unit = await resolveSource(code);
MethodDeclaration node = _findSimpleIdentifier(unit, code, 'max').parent;
TypeParameter t = node.typeParameters.typeParameters[0];
MethodElement element = node.name.staticElement;
TypeParameterElement tElement = element.typeParameters[0];
expect(tElement, isNotNull);
expect(element.typeParameters.toString(), "[T]");
expect(element.type.toString(), "<T>(T, T) → T");
expect(t.element, same(tElement));
// re-resolve
CompilationUnit unit2 = _cloneResolveUnit(unit);
node = _findSimpleIdentifier(unit2, code, 'max').parent;
t = node.typeParameters.typeParameters[0];
expect(t.element, same(tElement));
}
}