| // Copyright (c) 2019, 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. |
| |
| library dart2js.constants.expressions.evaluate_test; |
| |
| import 'dart:async'; |
| import 'package:async_helper/async_helper.dart'; |
| import 'package:expect/expect.dart'; |
| import 'package:compiler/src/commandline_options.dart'; |
| import 'package:compiler/src/common_elements.dart'; |
| import 'package:compiler/src/compiler.dart'; |
| import 'package:compiler/src/constants/values.dart'; |
| import 'package:compiler/src/elements/entities.dart'; |
| import 'package:compiler/src/elements/indexed.dart'; |
| import 'package:compiler/src/ir/constants.dart'; |
| import 'package:compiler/src/ir/visitors.dart'; |
| import 'package:compiler/src/kernel/kernel_strategy.dart'; |
| import 'package:compiler/src/kernel/element_map_impl.dart'; |
| import 'package:front_end/src/api_unstable/dart2js.dart' as ir; |
| import 'package:kernel/ast.dart' as ir; |
| import '../helpers/memory_compiler.dart'; |
| |
| class TestData { |
| final String name; |
| |
| /// Declarations needed for the [constants]. |
| final String declarations; |
| |
| /// Tested constants. |
| final List<ConstantData> constants; |
| |
| const TestData(this.name, this.declarations, this.constants); |
| } |
| |
| class ConstantData { |
| /// Source code for the constant expression. |
| final String code; |
| |
| /// Constant value as structured text for the empty environment or a map from |
| /// environment to either the expected constant value as structured text or |
| /// a [ConstantResult]. |
| final expectedResults; |
| |
| /// A [String] or a list of [String]s containing the code names for the error |
| /// messages expected as the result of evaluating the constant under the empty |
| /// environment. |
| final expectedErrors; |
| |
| const ConstantData(this.code, this.expectedResults, {this.expectedErrors}); |
| } |
| |
| const List<TestData> DATA = const [ |
| const TestData('simple', '', const [ |
| const ConstantData('null', 'NullConstant'), |
| const ConstantData('false', 'BoolConstant(false)'), |
| const ConstantData('true', 'BoolConstant(true)'), |
| const ConstantData('0', 'IntConstant(0)'), |
| const ConstantData('0.0', 'IntConstant(0)'), |
| const ConstantData('"foo"', 'StringConstant("foo")'), |
| const ConstantData('1 + 2', 'IntConstant(3)'), |
| const ConstantData('-(1)', 'IntConstant(-1)'), |
| const ConstantData('1 == 2', 'BoolConstant(false)'), |
| const ConstantData('1 != 2', 'BoolConstant(true)'), |
| const ConstantData('1 / 0', 'DoubleConstant(Infinity)'), |
| const ConstantData('0 / 0', 'DoubleConstant(NaN)'), |
| const ConstantData('1 << 0', 'IntConstant(1)'), |
| const ConstantData('1 >> 0', 'IntConstant(1)'), |
| const ConstantData('"foo".length', 'IntConstant(3)'), |
| const ConstantData('identical(0, 1)', 'BoolConstant(false)'), |
| const ConstantData('"a" "b"', 'StringConstant("ab")'), |
| const ConstantData(r'"${null}"', 'StringConstant("null")'), |
| const ConstantData('identical', 'FunctionConstant(identical)'), |
| const ConstantData('true ? 0 : 1', 'IntConstant(0)'), |
| const ConstantData('proxy', 'ConstructedConstant(_Proxy())'), |
| const ConstantData('const [] == null', 'BoolConstant(false)'), |
| const ConstantData('proxy == null', 'BoolConstant(false)'), |
| const ConstantData('proxy != null', 'BoolConstant(true)'), |
| const ConstantData('null == proxy', 'BoolConstant(false)'), |
| const ConstantData('null != proxy', 'BoolConstant(true)'), |
| const ConstantData('true == proxy', 'BoolConstant(false)'), |
| const ConstantData('true != proxy', 'BoolConstant(true)'), |
| const ConstantData('0 == proxy', 'BoolConstant(false)'), |
| const ConstantData('0 != proxy', 'BoolConstant(true)'), |
| const ConstantData('0.5 == proxy', 'BoolConstant(false)'), |
| const ConstantData('0.5 != proxy', 'BoolConstant(true)'), |
| const ConstantData('"" == proxy', 'BoolConstant(false)'), |
| const ConstantData('"" != proxy', 'BoolConstant(true)'), |
| const ConstantData('Object', 'TypeConstant(Object)'), |
| const ConstantData('null ?? 0', 'IntConstant(0)'), |
| const ConstantData( |
| 'const [0, 1]', 'ListConstant(<int>[IntConstant(0), IntConstant(1)])'), |
| const ConstantData('const <int>[0, 1]', |
| 'ListConstant(<int>[IntConstant(0), IntConstant(1)])'), |
| const ConstantData( |
| 'const {0, 1}', 'SetConstant(<int>{IntConstant(0), IntConstant(1)})'), |
| const ConstantData('const <int>{0, 1}', |
| 'SetConstant(<int>{IntConstant(0), IntConstant(1)})'), |
| const ConstantData( |
| 'const {0: 1, 2: 3}', |
| 'MapConstant(<int, int>{IntConstant(0): IntConstant(1), ' |
| 'IntConstant(2): IntConstant(3)})'), |
| const ConstantData( |
| 'const <int, int>{0: 1, 2: 3}', |
| 'MapConstant(<int, int>{IntConstant(0): IntConstant(1), ' |
| 'IntConstant(2): IntConstant(3)})'), |
| const ConstantData('const <int, int>{0: 1, 0: 2}', 'NonConstant', |
| expectedErrors: 'ConstEvalDuplicateKey'), |
| const ConstantData( |
| 'const bool.fromEnvironment("foo", defaultValue: false)', |
| const <Map<String, String>, String>{ |
| const {}: 'BoolConstant(false)', |
| const {'foo': 'true'}: 'BoolConstant(true)' |
| }), |
| const ConstantData( |
| 'const int.fromEnvironment("foo", defaultValue: 42)', |
| const <Map<String, String>, String>{ |
| const {}: 'IntConstant(42)', |
| const {'foo': '87'}: 'IntConstant(87)' |
| }), |
| const ConstantData( |
| 'const String.fromEnvironment("foo", defaultValue: "bar")', |
| const <Map<String, String>, String>{ |
| const {}: 'StringConstant("bar")', |
| const {'foo': 'foo'}: 'StringConstant("foo")' |
| }), |
| ]), |
| const TestData('env', ''' |
| const a = const bool.fromEnvironment("foo", defaultValue: true); |
| const b = const int.fromEnvironment("bar", defaultValue: 42); |
| |
| class A { |
| const A(); |
| } |
| class B { |
| final field1; |
| const B(this.field1); |
| } |
| class C extends B { |
| final field2; |
| const C({field1: 42, this.field2: false}) : super(field1); |
| const C.named([field = false]) : this(field1: field, field2: field); |
| } |
| class D extends C { |
| final field3 = 99; |
| const D(a, b) : super(field2: a, field1: b); |
| } |
| ''', const [ |
| const ConstantData('const Object()', 'ConstructedConstant(Object())'), |
| const ConstantData('const A()', 'ConstructedConstant(A())'), |
| const ConstantData( |
| 'const B(0)', 'ConstructedConstant(B(field1=IntConstant(0)))'), |
| const ConstantData('const B(const A())', |
| 'ConstructedConstant(B(field1=ConstructedConstant(A())))'), |
| const ConstantData( |
| 'const C()', |
| 'ConstructedConstant(C(field1=IntConstant(42),' |
| 'field2=BoolConstant(false)))'), |
| const ConstantData( |
| 'const C(field1: 87)', |
| 'ConstructedConstant(C(field1=IntConstant(87),' |
| 'field2=BoolConstant(false)))'), |
| const ConstantData( |
| 'const C(field2: true)', |
| 'ConstructedConstant(C(field1=IntConstant(42),' |
| 'field2=BoolConstant(true)))'), |
| const ConstantData( |
| 'const C.named()', |
| 'ConstructedConstant(C(field1=BoolConstant(false),' |
| 'field2=BoolConstant(false)))'), |
| const ConstantData( |
| 'const C.named(87)', |
| 'ConstructedConstant(C(field1=IntConstant(87),' |
| 'field2=IntConstant(87)))'), |
| const ConstantData( |
| 'const C(field1: a, field2: b)', const <Map<String, String>, String>{ |
| const {}: 'ConstructedConstant(C(field1=BoolConstant(true),' |
| 'field2=IntConstant(42)))', |
| const {'foo': 'false', 'bar': '87'}: |
| 'ConstructedConstant(C(field1=BoolConstant(false),' |
| 'field2=IntConstant(87)))', |
| }), |
| const ConstantData( |
| 'const D(42, 87)', |
| 'ConstructedConstant(D(field1=IntConstant(87),' |
| 'field2=IntConstant(42),' |
| 'field3=IntConstant(99)))'), |
| ]), |
| const TestData('redirect', ''' |
| class A<T> implements B<Null> { |
| final field1; |
| const A({this.field1:42}); |
| } |
| class B<S> implements C<Null> { |
| const factory B({field1}) = A<B<S>>; |
| const factory B.named() = A<S>; |
| } |
| class C<U> { |
| const factory C({field1}) = A<B<double>>; |
| } |
| ''', const [ |
| const ConstantData( |
| 'const A()', 'ConstructedConstant(A<dynamic>(field1=IntConstant(42)))'), |
| const ConstantData('const A<int>(field1: 87)', |
| 'ConstructedConstant(A<int>(field1=IntConstant(87)))'), |
| const ConstantData('const B()', |
| 'ConstructedConstant(A<B<dynamic>>(field1=IntConstant(42)))'), |
| const ConstantData('const B<int>()', |
| 'ConstructedConstant(A<B<int>>(field1=IntConstant(42)))'), |
| const ConstantData('const B<int>(field1: 87)', |
| 'ConstructedConstant(A<B<int>>(field1=IntConstant(87)))'), |
| const ConstantData('const C<int>(field1: 87)', |
| 'ConstructedConstant(A<B<double>>(field1=IntConstant(87)))'), |
| const ConstantData('const B<int>.named()', |
| 'ConstructedConstant(A<int>(field1=IntConstant(42)))'), |
| ]), |
| const TestData('env2', ''' |
| const c = const int.fromEnvironment("foo", defaultValue: 5); |
| const d = const int.fromEnvironment("bar", defaultValue: 10); |
| |
| class A { |
| final field; |
| const A(a, b) : field = a + b; |
| } |
| |
| class B extends A { |
| const B(a) : super(a, a * 2); |
| } |
| ''', const [ |
| const ConstantData('const A(c, d)', const <Map<String, String>, String>{ |
| const {}: 'ConstructedConstant(A(field=IntConstant(15)))', |
| const {'foo': '7', 'bar': '11'}: |
| 'ConstructedConstant(A(field=IntConstant(18)))', |
| }), |
| const ConstantData('const B(d)', const <Map<String, String>, String>{ |
| const {}: 'ConstructedConstant(B(field=IntConstant(30)))', |
| const {'bar': '42'}: 'ConstructedConstant(B(field=IntConstant(126)))', |
| }), |
| ]), |
| const TestData('construct', ''' |
| class A { |
| final x; |
| final y; |
| final z; |
| final t; |
| final u = 42; |
| const A(this.z, tt) : y = 499, t = tt, x = 3; |
| const A.named(z, this.t) : y = 400 + z, this.z = z, x = 3; |
| const A.named2(t, z, y, x) : x = t, y = z, z = y, t = x; |
| } |
| ''', const [ |
| const ConstantData( |
| 'const A.named(99, 100)', |
| 'ConstructedConstant(A(' |
| 't=IntConstant(100),' |
| 'u=IntConstant(42),' |
| 'x=IntConstant(3),' |
| 'y=IntConstant(499),' |
| 'z=IntConstant(99)))'), |
| const ConstantData( |
| 'const A(99, 100)', |
| 'ConstructedConstant(A(' |
| 't=IntConstant(100),' |
| 'u=IntConstant(42),' |
| 'x=IntConstant(3),' |
| 'y=IntConstant(499),' |
| 'z=IntConstant(99)))'), |
| ]), |
| const TestData('errors', r''' |
| const dynamic null_ = const bool.fromEnvironment('x') ? null : null; |
| const dynamic zero = const bool.fromEnvironment('x') ? null : 0; |
| const dynamic minus_one = const bool.fromEnvironment('x') ? null : -1; |
| const dynamic false_ = const bool.fromEnvironment('x') ? null : false; |
| const dynamic integer = const int.fromEnvironment("foo", defaultValue: 5); |
| const dynamic string = const String.fromEnvironment("bar", defaultValue: "baz"); |
| const dynamic boolean = const bool.fromEnvironment("baz", defaultValue: false); |
| const dynamic not_string = |
| const bool.fromEnvironment("not_string", defaultValue: false) ? '' : 0; |
| class Class1 { |
| final field; |
| const Class1() : field = not_string.length; |
| } |
| class Class2 implements Class3 { |
| const Class2() : assert(false_); |
| const Class2.redirect() : this(); |
| } |
| class Class3 { |
| const Class3() : assert(false_, "Message"); |
| const factory Class3.fact() = Class2; |
| } |
| class Class4 extends Class2 { |
| const Class4(); |
| } |
| class Class5 { |
| const Class5(a) : assert(a > 0, "$a <= 0"); |
| } |
| class Class6 extends Class5 { |
| const Class6(a) : super(a - 1); |
| } |
| class Class7 { |
| const Class7(); |
| } |
| class Class8 { |
| final field; |
| const Class8(this.field); |
| } |
| class Class9 { |
| final field = null_; |
| const Class9(); |
| } |
| class Class10 { |
| final int field = string; |
| const Class10(); |
| } |
| ''', const [ |
| const ConstantData( |
| r'"$integer $string $boolean"', 'StringConstant("5 baz false")'), |
| const ConstantData('integer ? true : false', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData(r'"${proxy}"', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidStringInterpolationOperand'), |
| const ConstantData('0 + string', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('string + 0', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidBinaryOperandType'), |
| const ConstantData('boolean + string', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidMethodInvocation'), |
| const ConstantData('boolean + false', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidMethodInvocation'), |
| const ConstantData('0 * string', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('0 % string', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('0 << string', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('1 ~/ zero', 'NonConstant', |
| expectedErrors: 'ConstEvalZeroDivisor'), |
| const ConstantData('1 % zero', 'NonConstant', |
| expectedErrors: 'ConstEvalZeroDivisor'), |
| const ConstantData('1 << minus_one', 'NonConstant', |
| expectedErrors: 'ConstEvalNegativeShift'), |
| const ConstantData('1 >> minus_one', 'NonConstant', |
| expectedErrors: 'ConstEvalNegativeShift'), |
| const ConstantData('const bool.fromEnvironment(integer)', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData( |
| 'const bool.fromEnvironment("baz", defaultValue: integer)', |
| 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('const int.fromEnvironment(integer)', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData( |
| 'const int.fromEnvironment("baz", defaultValue: string)', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('const String.fromEnvironment(integer)', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData( |
| 'const String.fromEnvironment("baz", defaultValue: integer)', |
| 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('false || integer', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('integer || true', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('integer && true', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('!integer', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('!string', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('-(string)', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidMethodInvocation'), |
| const ConstantData('not_string.length', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidPropertyGet'), |
| const ConstantData('const Class1()', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidPropertyGet'), |
| const ConstantData('const Class2()', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertion'), |
| const ConstantData('const Class2.redirect()', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertion'), |
| const ConstantData('const Class3()', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertionWithMessage'), |
| const ConstantData('const Class3.fact()', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertion'), |
| const ConstantData('const Class4()', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertion'), |
| const ConstantData('const Class5(0)', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertionWithMessage'), |
| const ConstantData('const Class5(1)', 'ConstructedConstant(Class5())'), |
| const ConstantData('const Class6(1)', 'NonConstant', |
| expectedErrors: 'ConstEvalFailedAssertionWithMessage'), |
| const ConstantData('const Class6(2)', 'ConstructedConstant(Class6())'), |
| const ConstantData('const Class7()', 'ConstructedConstant(Class7())'), |
| const ConstantData('const Class7() == const Class7()', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidEqualsOperandType'), |
| const ConstantData('const Class7() != const Class7()', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidEqualsOperandType'), |
| const ConstantData('const Class8(not_string.length)', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidPropertyGet'), |
| const ConstantData( |
| 'const Class9()', 'ConstructedConstant(Class9(field=NullConstant))'), |
| const ConstantData('const Class10()', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| ]), |
| const TestData('assert', ''' |
| const true_ = const bool.fromEnvironment('x') ? null : true; |
| class A { |
| const A() : assert(true); |
| } |
| class B { |
| const B() : assert(true, "Message"); |
| } |
| class C { |
| final a; |
| const C(this.a); |
| } |
| class D extends C { |
| final b; |
| const D(c) : b = c + 2, super(c + 1); |
| } |
| class E { |
| const E() : assert(true_); |
| } |
| ''', const [ |
| const ConstantData(r'const A()', 'ConstructedConstant(A())'), |
| const ConstantData(r'const B()', 'ConstructedConstant(B())'), |
| const ConstantData(r'const D(0)', |
| 'ConstructedConstant(D(a=IntConstant(1),b=IntConstant(2)))'), |
| const ConstantData(r'const E()', 'ConstructedConstant(E())'), |
| ]), |
| const TestData('instantiations', ''' |
| T identity<T>(T t) => t; |
| class C<T> { |
| final T defaultValue; |
| final T Function(T t) identityFunction; |
| |
| const C(this.defaultValue, this.identityFunction); |
| } |
| ''', const <ConstantData>[ |
| const ConstantData('identity', 'FunctionConstant(identity)'), |
| const ConstantData( |
| 'const C<int>(0, identity)', |
| 'ConstructedConstant(C<int>(defaultValue=IntConstant(0),' |
| 'identityFunction=InstantiationConstant([int],' |
| 'FunctionConstant(identity))))'), |
| const ConstantData( |
| 'const C<double>(0.5, identity)', |
| 'ConstructedConstant(C<double>(defaultValue=DoubleConstant(0.5),' |
| 'identityFunction=InstantiationConstant([double],' |
| 'FunctionConstant(identity))))'), |
| ]), |
| const TestData('generic class', ''' |
| class C<T> { |
| const C.generative(); |
| const C.redirect() : this.generative(); |
| } |
| ''', const <ConstantData>[ |
| const ConstantData( |
| 'const C<int>.generative()', 'ConstructedConstant(C<int>())'), |
| const ConstantData( |
| 'const C<int>.redirect()', 'ConstructedConstant(C<int>())'), |
| ]), |
| const TestData('instance', ''' |
| const dynamic zero_ = const bool.fromEnvironment("x") ? null : 0; |
| class Class9 { |
| final field = zero_; |
| const Class9(); |
| } |
| ''', const <ConstantData>[ |
| const ConstantData( |
| 'const Class9()', 'ConstructedConstant(Class9(field=IntConstant(0)))'), |
| ]), |
| const TestData('type-variables', ''' |
| class A { |
| const A(); |
| } |
| |
| class C1<T> { |
| final T a; |
| const C1(dynamic t) : a = t; // adds implicit cast `as T` |
| } |
| |
| T id<T>(T t) => t; |
| |
| class C2<T> { |
| final T Function(T) a; |
| const C2(dynamic t) : a = id; // implicit partial instantiation |
| } |
| ''', const <ConstantData>[ |
| const ConstantData('const C1<A>(const A())', |
| 'ConstructedConstant(C1<A>(a=ConstructedConstant(A())))'), |
| const ConstantData( |
| 'const C2<A>(id)', |
| 'ConstructedConstant(C2<A>(a=' |
| 'InstantiationConstant([A],FunctionConstant(id))))'), |
| ]), |
| const TestData('unused-arguments', ''' |
| class A { |
| const A(); |
| |
| A operator -() => this; |
| } |
| class B implements A { |
| const B(); |
| |
| B operator -() => this; |
| } |
| class C implements A { |
| const C(); |
| |
| C operator -() => this; |
| } |
| class Class<T extends A> { |
| const Class(T t); |
| const Class.redirect(dynamic t) : this(t); |
| const Class.method(T t) : this(-t); |
| } |
| class Subclass<T extends A> extends Class<T> { |
| const Subclass(dynamic t) : super(t); |
| } |
| ''', const <ConstantData>[ |
| const ConstantData( |
| 'const Class<A>(const A())', 'ConstructedConstant(Class<A>())'), |
| const ConstantData('const Class<B>.redirect(const B())', |
| 'ConstructedConstant(Class<B>())'), |
| const ConstantData('const Class<B>.redirect(const C())', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| const ConstantData('const Class<A>.method(const A())', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidMethodInvocation'), |
| const ConstantData( |
| 'const Subclass<A>(const A())', 'ConstructedConstant(Subclass<A>())'), |
| const ConstantData( |
| 'const Subclass<B>(const B())', 'ConstructedConstant(Subclass<B>())'), |
| const ConstantData('const Subclass<B>(const C())', 'NonConstant', |
| expectedErrors: 'ConstEvalInvalidType'), |
| ]), |
| ]; |
| |
| main(List<String> args) { |
| asyncTest(() async { |
| for (TestData data in DATA) { |
| if (args.isNotEmpty && !args.contains(data.name)) continue; |
| await testData(data); |
| } |
| }); |
| } |
| |
| Future testData(TestData data) async { |
| StringBuffer sb = new StringBuffer(); |
| sb.writeln('${data.declarations}'); |
| Map<String, ConstantData> constants = {}; |
| List<String> names = <String>[]; |
| data.constants.forEach((ConstantData constantData) { |
| String name = 'c${constants.length}'; |
| names.add(name); |
| // Encode the constants as part of a from-environment conditional to force |
| // CFE to create unevaluated constants. |
| sb.writeln('const $name = const bool.fromEnvironment("x") ? ' |
| 'null : ${constantData.code};'); |
| constants[name] = constantData; |
| }); |
| sb.writeln('main() {'); |
| for (String name in names) { |
| sb.writeln(' print($name);'); |
| } |
| sb.writeln('}'); |
| String source = sb.toString(); |
| print("--source '${data.name}'---------------------------------------------"); |
| print(source); |
| |
| Future runTest() async { |
| CompilationResult result = await runCompiler(memorySourceFiles: { |
| 'main.dart': source |
| }, options: [ |
| Flags.enableAsserts, |
| '${Flags.enableLanguageExperiments}=constant-update-2018', |
| ]); |
| Compiler compiler = result.compiler; |
| KernelFrontendStrategy frontEndStrategy = compiler.frontendStrategy; |
| KernelToElementMapImpl elementMap = frontEndStrategy.elementMap; |
| KElementEnvironment elementEnvironment = |
| compiler.frontendStrategy.elementEnvironment; |
| LibraryEntity library = elementEnvironment.mainLibrary; |
| constants.forEach((String name, ConstantData data) { |
| IndexedField field = |
| elementEnvironment.lookupLibraryMember(library, name); |
| compiler.reporter.withCurrentElement(field, () { |
| var expectedResults = data.expectedResults; |
| if (expectedResults is String) { |
| expectedResults = <Map<String, String>, String>{ |
| const <String, String>{}: expectedResults |
| }; |
| } |
| ir.Field node = elementMap.getMemberNode(field); |
| ir.ConstantExpression initializer = node.initializer; |
| print('-- testing $field = ${data.code} --'); |
| expectedResults |
| .forEach((Map<String, String> environment, String expectedText) { |
| List<String> errors = []; |
| Dart2jsConstantEvaluator evaluator = |
| new Dart2jsConstantEvaluator(elementMap.typeEnvironment, |
| (ir.LocatedMessage message, List<ir.LocatedMessage> context) { |
| // TODO(johnniwinther): Assert that `message.uri != null`. Currently |
| // all unevaluated constants have no uri. |
| errors.add(message.code.name); |
| reportLocatedMessage(elementMap.reporter, message, context); |
| }, |
| enableAsserts: true, |
| environment: environment, |
| supportReevaluationForTesting: true); |
| ir.Constant evaluatedConstant = evaluator.evaluate(initializer); |
| |
| ConstantValue value = evaluatedConstant is! ir.UnevaluatedConstant |
| ? evaluatedConstant.accept(new ConstantValuefier(elementMap)) |
| : new NonConstantValue(); |
| |
| Expect.isNotNull( |
| value, |
| "Expected non-null value from evaluation of " |
| "`${data.code}`."); |
| |
| String valueText = value.toStructuredText(); |
| Expect.equals( |
| expectedText, |
| valueText, |
| "Unexpected value '${valueText}' for field $field = " |
| "`${data.code}` in env $environment, " |
| "expected '${expectedText}'."); |
| |
| var expectedErrors = data.expectedErrors; |
| if (expectedErrors != null) { |
| if (expectedErrors is! List) { |
| expectedErrors = [expectedErrors]; |
| } |
| Expect.listEquals( |
| expectedErrors, |
| errors, |
| "Error mismatch for `$field = ${data.code}`:\n" |
| "Expected: ${data.expectedErrors},\n" |
| "Found: ${errors}."); |
| } else { |
| Expect.isTrue( |
| errors.isEmpty, |
| "Unexpected errors for `$field = ${data.code}`:\n" |
| "Found: ${errors}."); |
| } |
| }); |
| }); |
| }); |
| } |
| |
| await runTest(); |
| } |
