blob: 4362bf947e991da56577ed03403bfe6cd359a5f5 [file] [log] [blame]
// Copyright (c) 2020, 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:io' show Directory, Platform;
import 'package:_fe_analyzer_shared/src/testing/id.dart' show ActualData, Id;
import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
show DataInterpreter, runTests;
import 'package:front_end/src/fasta/source/source_member_builder.dart';
import 'package:front_end/src/fasta/type_inference/type_inference_engine.dart';
import 'package:front_end/src/testing/id_testing_helper.dart';
import 'package:front_end/src/testing/id_testing_utils.dart';
import 'package:kernel/ast.dart' hide Variance, MapLiteralEntry;
Future<void> main(List<String> args) async {
Directory dataDir = new Directory.fromUri(
Platform.script.resolve('../../../_fe_analyzer_shared/test/flow_analysis/'
'why_not_promoted/data'));
await runTests<String>(dataDir,
args: args,
createUriForFileName: createUriForFileName,
onFailure: onFailure,
runTest: runTestFor(
const WhyNotPromotedDataComputer(), [cfeNonNullableOnlyConfig]));
}
class WhyNotPromotedDataComputer extends DataComputer<String> {
const WhyNotPromotedDataComputer();
@override
DataInterpreter<String> get dataValidator =>
const _WhyNotPromotedDataInterpreter();
/// Errors are supported for testing erroneous code. The reported errors are
/// not tested.
@override
bool get supportsErrors => true;
/// Function that computes a data mapping for [member].
///
/// Fills [actualMap] with the data.
@override
void computeMemberData(
TestConfig config,
InternalCompilerResult compilerResult,
Member member,
Map<Id, ActualData<String>> actualMap,
{bool? verbose}) {
SourceMemberBuilder memberBuilder =
lookupMemberBuilder(compilerResult, member) as SourceMemberBuilder;
member.accept(new WhyNotPromotedDataExtractor(compilerResult, actualMap,
memberBuilder.dataForTesting!.inferenceData.flowAnalysisResult));
}
}
class WhyNotPromotedDataExtractor extends CfeDataExtractor<String> {
final FlowAnalysisResult _flowResult;
WhyNotPromotedDataExtractor(InternalCompilerResult compilerResult,
Map<Id, ActualData<String>> actualMap, this._flowResult)
: super(compilerResult, actualMap);
@override
String? computeNodeValue(Id id, TreeNode node) {
String? nonPromotionReason = _flowResult.nonPromotionReasons[node];
if (nonPromotionReason != null) {
return 'notPromoted($nonPromotionReason)';
}
return _flowResult.nonPromotionReasonTargets[node];
}
}
class _WhyNotPromotedDataInterpreter implements DataInterpreter<String> {
const _WhyNotPromotedDataInterpreter();
@override
String getText(String actualData, [String? indentation]) => actualData;
@override
String? isAsExpected(String actualData, String? expectedData) {
if (actualData == expectedData) {
return null;
} else {
return 'Expected $expectedData, got $actualData';
}
}
@override
bool isEmpty(String? actualData) => actualData == null;
}