Alexander Markov
3abf78212c
Add dart2bytecode tool which takes Dart sources and produces Dart bytecode. The tool uses common front-end (CFE) to parse Dart source code and contains bytecode generator which translates kernel AST to bytecode. Change-Id: I90bd6e72c619cf0edc556da0640760b30e81091d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/378560 Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Slava Egorov <vegorov@google.com>
73 lines
2.3 KiB
Dart
73 lines
2.3 KiB
Dart
// Copyright (c) 2024, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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/// Collection of options for bytecode generator.
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class BytecodeOptions {
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static Map<String, String> commandLineFlags = {
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'annotations': 'Emit Dart annotations',
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'local-var-info': 'Emit debug information about local variables',
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'debugger-stops': 'Emit bytecode instructions for stopping in the debugger',
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'show-bytecode-size-stat': 'Show bytecode size breakdown',
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'source-positions': 'Emit source positions',
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'instance-field-initializers': 'Emit separate instance field initializers',
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'keep-unreachable-code':
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'Do not remove unreachable code (useful if collecting code coverage)',
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};
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bool enableAsserts;
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bool emitSourcePositions;
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bool emitLocalVarInfo;
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bool emitDebuggerStops;
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bool emitAnnotations;
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bool emitInstanceFieldInitializers;
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bool omitAssertSourcePositions;
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bool keepUnreachableCode;
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bool showBytecodeSizeStatistics;
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BytecodeOptions({
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this.enableAsserts = false,
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this.emitSourcePositions = false,
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this.emitLocalVarInfo = false,
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this.emitDebuggerStops = false,
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this.emitAnnotations = false,
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this.emitInstanceFieldInitializers = false,
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this.omitAssertSourcePositions = false,
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this.keepUnreachableCode = false,
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this.showBytecodeSizeStatistics = false,
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}) {}
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void parseCommandLineFlags(List<String>? flags) {
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if (flags == null) {
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return;
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}
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for (String flag in flags) {
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switch (flag) {
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case 'source-positions':
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emitSourcePositions = true;
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break;
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case 'local-var-info':
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emitLocalVarInfo = true;
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break;
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case 'debugger-stops':
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emitDebuggerStops = true;
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break;
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case 'annotations':
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emitAnnotations = true;
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break;
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case 'instance-field-initializers':
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emitInstanceFieldInitializers = true;
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break;
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case 'keep-unreachable-code':
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keepUnreachableCode = true;
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break;
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case 'show-bytecode-size-stat':
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showBytecodeSizeStatistics = true;
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break;
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default:
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throw 'Unexpected bytecode flag $flag';
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}
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}
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}
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}
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