| // Copyright (c) 2012, 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. |
| // Test constant folding. |
| |
| library compiler_helper; |
| |
| import "dart:uri"; |
| |
| import "../../../sdk/lib/_internal/compiler/implementation/elements/elements.dart" |
| as lego; |
| import "../../../sdk/lib/_internal/compiler/implementation/js_backend/js_backend.dart" |
| as js; |
| import "../../../sdk/lib/_internal/compiler/implementation/dart2jslib.dart" |
| as leg; |
| import "../../../sdk/lib/_internal/compiler/implementation/ssa/ssa.dart" as ssa; |
| import "../../../sdk/lib/_internal/compiler/implementation/util/util.dart"; |
| import '../../../sdk/lib/_internal/compiler/implementation/source_file.dart'; |
| |
| import "mock_compiler.dart"; |
| import "parser_helper.dart"; |
| |
| String compile(String code, {String entry: 'main', |
| String coreSource: DEFAULT_CORELIB, |
| bool enableTypeAssertions: false, |
| bool minify: false, |
| bool analyzeAll: false}) { |
| MockCompiler compiler = |
| new MockCompiler(enableTypeAssertions: enableTypeAssertions, |
| coreSource: coreSource, |
| enableMinification: minify); |
| compiler.parseScript(code); |
| lego.Element element = compiler.mainApp.find(buildSourceString(entry)); |
| if (element == null) return null; |
| compiler.backend.enqueueHelpers(compiler.enqueuer.resolution); |
| compiler.processQueue(compiler.enqueuer.resolution, element); |
| var context = new js.JavaScriptItemCompilationContext(); |
| leg.WorkItem work = new leg.WorkItem(element, null, context); |
| work.run(compiler, compiler.enqueuer.codegen); |
| return compiler.enqueuer.codegen.lookupCode(element); |
| } |
| |
| MockCompiler compilerFor(String code, Uri uri, {bool analyzeAll: false}) { |
| MockCompiler compiler = new MockCompiler(analyzeAll: analyzeAll); |
| compiler.sourceFiles[uri.toString()] = new SourceFile(uri.toString(), code); |
| return compiler; |
| } |
| |
| String compileAll(String code) { |
| Uri uri = new Uri.fromComponents(scheme: 'source'); |
| MockCompiler compiler = compilerFor(code, uri); |
| compiler.runCompiler(uri); |
| Expect.isFalse(compiler.compilationFailed, |
| 'Unexpected compilation error'); |
| return compiler.assembledCode; |
| } |
| |
| dynamic compileAndCheck(String code, |
| String name, |
| check(MockCompiler compiler, lego.Element element)) { |
| Uri uri = new Uri.fromComponents(scheme: 'source'); |
| MockCompiler compiler = compilerFor(code, uri); |
| compiler.runCompiler(uri); |
| lego.Element element = findElement(compiler, name); |
| return check(compiler, element); |
| } |
| |
| lego.Element findElement(compiler, String name) { |
| var element = compiler.mainApp.find(buildSourceString(name)); |
| Expect.isNotNull(element, 'Could not locate $name.'); |
| return element; |
| } |
| |
| String anyIdentifier = "[a-zA-Z][a-zA-Z0-9]*"; |
| |
| String getIntTypeCheck(String variable) { |
| return "\\($variable ?!== ?\\($variable ?\\| ?0\\)\\)"; |
| } |
| |
| String getNumberTypeCheck(String variable) { |
| return "\\(typeof $variable ?!== ?'number'\\)"; |
| } |
| |
| bool checkNumberOfMatches(Iterator it, int nb) { |
| for (int i = 0; i < nb; i++) { |
| Expect.isTrue(it.hasNext, "Found less than $nb matches"); |
| it.next(); |
| } |
| Expect.isFalse(it.hasNext, "Found more than $nb matches"); |
| } |
| |
| void compileAndMatch(String code, String entry, RegExp regexp) { |
| String generated = compile(code, entry: entry); |
| Expect.isTrue(regexp.hasMatch(generated), |
| '"$generated" does not match /$regexp/'); |
| } |
| |
| void compileAndDoNotMatch(String code, String entry, RegExp regexp) { |
| String generated = compile(code, entry: entry); |
| Expect.isFalse(regexp.hasMatch(generated), |
| '"$generated" has a match in /$regexp/'); |
| } |
| |
| int length(Link link) => link.isEmpty ? 0 : length(link.tail) + 1; |
| |
| // Does a compile and then a match where every 'x' is replaced by something |
| // that matches any variable, and every space is optional. |
| void compileAndMatchFuzzy(String code, String entry, String regexp) { |
| compileAndMatchFuzzyHelper(code, entry, regexp, true); |
| } |
| |
| void compileAndDoNotMatchFuzzy(String code, String entry, String regexp) { |
| compileAndMatchFuzzyHelper(code, entry, regexp, false); |
| } |
| |
| void compileAndMatchFuzzyHelper( |
| String code, String entry, String regexp, bool shouldMatch) { |
| String generated = compile(code, entry: entry); |
| final xRe = new RegExp('\\bx\\b'); |
| regexp = regexp.replaceAll(xRe, '(?:$anyIdentifier)'); |
| final spaceRe = new RegExp('\\s+'); |
| regexp = regexp.replaceAll(spaceRe, '(?:\\s*)'); |
| if (shouldMatch) { |
| Expect.isTrue(new RegExp(regexp).hasMatch(generated)); |
| } else { |
| Expect.isFalse(new RegExp(regexp).hasMatch(generated)); |
| } |
| } |
| |