| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 /// Additions to Fasta for generating .dill (Kernel IR) files with dart2js patch | |
| 6 /// files and native hooks. | |
| 7 library compiler.src.kernel.fasta_support; | |
| 8 | |
| 9 // TODO(sigmund): get rid of this file. Fasta should be agnostic of the | |
| 10 // target platform, at which point this should not be necessary. In particular, | |
| 11 // we need to: | |
| 12 // - add a fasta flag to configure the platform library location. | |
| 13 // - add a fasta flag to specify which sdk libraries should be built-in | |
| 14 // (that would replace `loadExtraRequiredLibraries`). | |
| 15 // - add flags to fasta to turn on various transformations. | |
| 16 // - get rid of `native` in dart2js patches or unify the syntax with the VM. | |
| 17 | |
| 18 import 'dart:async' show Future; | |
| 19 import 'dart:io' show exitCode; | |
| 20 | |
| 21 import 'package:front_end/file_system.dart'; | |
| 22 import 'package:front_end/physical_file_system.dart'; | |
| 23 import 'package:front_end/src/fasta/kernel/utils.dart'; | |
| 24 import 'package:kernel/ast.dart' show Source, Library; | |
| 25 import 'package:kernel/target/targets.dart' show TargetFlags, NoneTarget; | |
| 26 | |
| 27 import 'package:front_end/src/fasta/builder/builder.dart' show LibraryBuilder; | |
| 28 import 'package:front_end/src/fasta/compiler_context.dart' show CompilerContext; | |
| 29 import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget; | |
| 30 import 'package:front_end/src/fasta/fasta.dart' show CompileTask; | |
| 31 import 'package:front_end/src/fasta/kernel/kernel_target.dart' | |
| 32 show KernelTarget; | |
| 33 import 'package:front_end/src/fasta/loader.dart' show Loader; | |
| 34 import 'package:front_end/src/fasta/parser/parser.dart' show optional; | |
| 35 import 'package:front_end/src/fasta/source/source_loader.dart' | |
| 36 show SourceLoader; | |
| 37 import 'package:front_end/src/scanner/token.dart' show Token; | |
| 38 import 'package:front_end/src/fasta/ticker.dart' show Ticker; | |
| 39 import 'package:front_end/src/fasta/translate_uri.dart' show TranslateUri; | |
| 40 | |
| 41 import 'package:compiler/src/native/native.dart' show maybeEnableNative; | |
| 42 | |
| 43 /// Generates a platform.dill file containing the compiled Kernel IR of the | |
| 44 /// dart2js SDK. | |
| 45 Future compilePlatform(Uri patchedSdk, Uri fullOutput, | |
| 46 {Uri outlineOutput, Uri packages}) async { | |
| 47 Uri deps = Uri.base.resolveUri(new Uri.file("${fullOutput.toFilePath()}.d")); | |
| 48 TranslateUri uriTranslator = await TranslateUri | |
| 49 .parse(PhysicalFileSystem.instance, patchedSdk, packages: packages); | |
| 50 var ticker = new Ticker(isVerbose: false); | |
| 51 var dillTarget = new DillTargetForDart2js(ticker, uriTranslator); | |
| 52 var kernelTarget = | |
| 53 new KernelTargetForDart2js(dillTarget, uriTranslator, false); | |
| 54 | |
| 55 kernelTarget.read(Uri.parse("dart:core")); | |
| 56 await dillTarget.buildOutlines(); | |
| 57 var outline = await kernelTarget.buildOutlines(); | |
| 58 await writeProgramToFile(outline, outlineOutput); | |
| 59 ticker.logMs("Wrote outline to ${outlineOutput.toFilePath()}"); | |
| 60 | |
| 61 if (exitCode != 0) return null; | |
| 62 var program = await kernelTarget.buildProgram(); | |
| 63 await writeProgramToFile(program, fullOutput); | |
| 64 ticker.logMs("Wrote program to ${fullOutput.toFilePath()}"); | |
| 65 await kernelTarget.writeDepsFile(fullOutput, deps); | |
| 66 } | |
| 67 | |
| 68 /// Extends the internal fasta [CompileTask] to use a dart2js-aware [DillTarget] | |
| 69 /// and [KernelTarget]. | |
| 70 class Dart2jsCompileTask extends CompileTask { | |
| 71 Dart2jsCompileTask(CompilerContext c, Ticker ticker) : super(c, ticker); | |
| 72 | |
| 73 @override | |
| 74 DillTarget createDillTarget(TranslateUri uriTranslator) { | |
| 75 return new DillTargetForDart2js(ticker, uriTranslator); | |
| 76 } | |
| 77 | |
| 78 @override | |
| 79 KernelTarget createKernelTarget( | |
| 80 DillTarget dillTarget, TranslateUri uriTranslator, bool strongMode) { | |
| 81 return new KernelTargetForDart2js( | |
| 82 dillTarget, uriTranslator, strongMode, c.uriToSource); | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 /// Specializes [KernelTarget] to build kernel for dart2js: no transformations | |
| 87 /// are run, JS-specific libraries are included in the SDK, and native clauses | |
| 88 /// have no string parameter. | |
| 89 class KernelTargetForDart2js extends KernelTarget { | |
| 90 KernelTargetForDart2js( | |
| 91 DillTarget target, TranslateUri uriTranslator, bool strongMode, | |
| 92 [Map<String, Source> uriToSource]) | |
| 93 : super(PhysicalFileSystem.instance, target, uriTranslator, uriToSource); | |
| 94 @override | |
| 95 SourceLoader<Library> createLoader() => | |
| 96 new SourceLoaderForDart2js<Library>(fileSystem, this); | |
| 97 | |
| 98 @override | |
| 99 bool enableNative(LibraryBuilder library) => maybeEnableNative(library.uri); | |
| 100 | |
| 101 @override | |
| 102 Token skipNativeClause(Token token) => _skipNative(token); | |
| 103 | |
| 104 @override | |
| 105 String extractNativeMethodName(Token token) => ""; | |
| 106 | |
| 107 @override | |
| 108 void loadExtraRequiredLibraries(Loader loader) => _loadExtras(loader); | |
| 109 | |
| 110 @override | |
| 111 void runBuildTransformations() {} | |
| 112 } | |
| 113 | |
| 114 /// Specializes [SourceLoader] to build kernel for dart2js: dart2js extends | |
| 115 /// bool, int, num, double, and String in a different platform library than | |
| 116 /// `dart:core`. | |
| 117 class SourceLoaderForDart2js<L> extends SourceLoader<L> { | |
| 118 LibraryBuilder interceptorsLibrary; | |
| 119 | |
| 120 @override | |
| 121 LibraryBuilder read(Uri uri, int charOffset, | |
| 122 {Uri fileUri, LibraryBuilder accessor, bool isPatch: false}) { | |
| 123 var library = super.read(uri, charOffset, | |
| 124 fileUri: fileUri, accessor: accessor, isPatch: isPatch); | |
| 125 if (uri.scheme == 'dart' && uri.path == '_interceptors') { | |
| 126 interceptorsLibrary = library; | |
| 127 } | |
| 128 return library; | |
| 129 } | |
| 130 | |
| 131 @override | |
| 132 bool canImplementRestrictedTypes(LibraryBuilder library) => | |
| 133 library == coreLibrary || library == interceptorsLibrary; | |
| 134 | |
| 135 SourceLoaderForDart2js(FileSystem fs, KernelTarget target) | |
| 136 : super(fs, target); | |
| 137 } | |
| 138 | |
| 139 /// Specializes [DillTarget] to build kernel for dart2js: JS-specific libraries | |
| 140 /// are included in the SDK, and native clauses have no string parameter. | |
| 141 class DillTargetForDart2js extends DillTarget { | |
| 142 DillTargetForDart2js(Ticker ticker, TranslateUri uriTranslator) | |
| 143 : super(ticker, uriTranslator, new NoneTarget(new TargetFlags())); | |
| 144 | |
| 145 @override | |
| 146 Token skipNativeClause(Token token) => _skipNative(token); | |
| 147 | |
| 148 @override | |
| 149 String extractNativeMethodName(Token token) => ""; | |
| 150 | |
| 151 @override | |
| 152 void loadExtraRequiredLibraries(Loader loader) => _loadExtras(loader); | |
| 153 } | |
| 154 | |
| 155 /// We use native clauses of this form in our dart2js patch files: | |
| 156 /// | |
| 157 /// methodDeclaration() native; | |
| 158 /// | |
| 159 /// The default front_end parser doesn't support this, so it will trigger an | |
| 160 /// error recovery condition. This function is used while parsing to detect this | |
| 161 /// form and continue parsing. | |
| 162 /// | |
| 163 /// Note that `native` isn't part of the Dart Language Specification, and the VM | |
| 164 /// uses it a slightly different form. We hope to remove this syntax in our | |
| 165 /// dart2js patch files and replace it with the external modifier. | |
| 166 Token _skipNative(Token token) { | |
| 167 if (!optional("native", token)) return null; | |
| 168 if (!optional(";", token.next)) return null; | |
| 169 return token; | |
| 170 } | |
| 171 | |
| 172 void _loadExtras(Loader loader) { | |
| 173 for (String uri in _extraDart2jsLibraries) { | |
| 174 loader.read(Uri.parse(uri), -1); | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 const _extraDart2jsLibraries = const <String>[ | |
| 179 'dart:_chrome', | |
| 180 'dart:_foreign_helper', | |
| 181 'dart:_interceptors', | |
| 182 'dart:_internal', | |
| 183 'dart:_isolate_helper', | |
| 184 'dart:_js_embedded_names', | |
| 185 'dart:_js_helper', | |
| 186 'dart:_js_mirrors', | |
| 187 'dart:_js_names', | |
| 188 'dart:_native_typed_data', | |
| 189 'dart:async', | |
| 190 'dart:collection', | |
| 191 'dart:html', | |
| 192 'dart:html_common', | |
| 193 'dart:indexed_db', | |
| 194 'dart:js', | |
| 195 'dart:js_util', | |
| 196 'dart:mirrors', | |
| 197 'dart:svg', | |
| 198 'dart:web_audio', | |
| 199 'dart:web_gl', | |
| 200 'dart:web_sql', | |
| 201 ]; | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2953703002:
Tweak public APIs and use them in patch_sdk, dart2js, and kernel-service (Closed)
