| // Copyright (c) 2016, 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 fasta.tool.entry_points; |
| |
| import 'dart:async' show Future; |
| |
| import 'dart:convert' show JSON; |
| |
| import 'dart:io' show File, exitCode; |
| |
| import 'package:compiler/src/kernel/dart2js_target.dart' show Dart2jsTarget; |
| |
| import 'package:kernel/target/targets.dart' show TargetFlags, targets; |
| |
| import 'package:front_end/src/fasta/compiler_context.dart' show CompilerContext; |
| |
| import 'package:front_end/src/fasta/deprecated_problems.dart' |
| show deprecated_InputError, deprecated_inputError; |
| |
| import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget; |
| |
| import 'package:front_end/src/fasta/kernel/kernel_target.dart' |
| show KernelTarget; |
| |
| import 'package:front_end/src/fasta/kernel/utils.dart' |
| show printProgramText, writeProgramToFile; |
| |
| import 'package:front_end/src/fasta/severity.dart' show Severity; |
| |
| import 'package:front_end/src/fasta/ticker.dart' show Ticker; |
| |
| import 'package:front_end/src/fasta/uri_translator.dart' show UriTranslator; |
| |
| import 'package:kernel/kernel.dart' show Program, loadProgramFromBytes; |
| |
| import 'command_line.dart' show withGlobalOptions; |
| |
| const bool summary = const bool.fromEnvironment("summary", defaultValue: false); |
| |
| const int iterations = const int.fromEnvironment("iterations", defaultValue: 1); |
| |
| compileEntryPoint(List<String> arguments) async { |
| targets["dart2js"] = (TargetFlags flags) => new Dart2jsTarget(flags); |
| |
| // Timing results for each iteration |
| List<double> elapsedTimes = <double>[]; |
| |
| for (int i = 0; i < iterations; i++) { |
| if (i > 0) { |
| print("\n\n=== Iteration ${i+1} of $iterations"); |
| } |
| var stopwatch = new Stopwatch()..start(); |
| await compile(arguments); |
| stopwatch.stop(); |
| |
| elapsedTimes.add(stopwatch.elapsedMilliseconds.toDouble()); |
| } |
| |
| if (summary) { |
| var json = JSON.encode(<String, dynamic>{'elapsedTimes': elapsedTimes}); |
| print('\nSummary: $json'); |
| } |
| } |
| |
| outlineEntryPoint(List<String> arguments) async { |
| for (int i = 0; i < iterations; i++) { |
| if (i > 0) { |
| print("\n"); |
| } |
| await outline(arguments); |
| } |
| } |
| |
| Future<KernelTarget> outline(List<String> arguments) async { |
| try { |
| return await withGlobalOptions("outline", arguments, true, |
| (CompilerContext c, _) async { |
| if (c.options.verbose) { |
| print("Building outlines for ${arguments.join(' ')}"); |
| } |
| CompileTask task = |
| new CompileTask(c, new Ticker(isVerbose: c.options.verbose)); |
| return await task.buildOutline(c.options.output); |
| }); |
| } on deprecated_InputError catch (e) { |
| exitCode = 1; |
| CompilerContext.runWithDefaultOptions( |
| (c) => c.report(deprecated_InputError.toMessage(e), Severity.error)); |
| return null; |
| } |
| } |
| |
| Future<Uri> compile(List<String> arguments) async { |
| try { |
| return await withGlobalOptions("compile", arguments, true, |
| (CompilerContext c, _) async { |
| if (c.options.verbose) { |
| print("Compiling directly to Kernel: ${arguments.join(' ')}"); |
| } |
| CompileTask task = |
| new CompileTask(c, new Ticker(isVerbose: c.options.verbose)); |
| return await task.compile(); |
| }); |
| } on deprecated_InputError catch (e) { |
| exitCode = 1; |
| CompilerContext.runWithDefaultOptions( |
| (c) => c.report(deprecated_InputError.toMessage(e), Severity.error)); |
| return null; |
| } |
| } |
| |
| class CompileTask { |
| final CompilerContext c; |
| final Ticker ticker; |
| |
| CompileTask(this.c, this.ticker); |
| |
| DillTarget createDillTarget(UriTranslator uriTranslator) { |
| return new DillTarget(ticker, uriTranslator, c.options.target); |
| } |
| |
| KernelTarget createKernelTarget( |
| DillTarget dillTarget, UriTranslator uriTranslator, bool strongMode) { |
| return new KernelTarget(c.fileSystem, false, dillTarget, uriTranslator, |
| uriToSource: c.uriToSource); |
| } |
| |
| Future<KernelTarget> buildOutline([Uri output]) async { |
| UriTranslator uriTranslator = await c.options.getUriTranslator(); |
| ticker.logMs("Read packages file"); |
| DillTarget dillTarget = createDillTarget(uriTranslator); |
| KernelTarget kernelTarget = |
| createKernelTarget(dillTarget, uriTranslator, c.options.strongMode); |
| if (c.options.strongMode) { |
| print("Note: strong mode support is preliminary and may not work."); |
| } |
| Uri platform = c.options.sdkSummary; |
| if (platform != null) { |
| _appendDillForUri(dillTarget, platform); |
| } |
| Uri uri = c.options.inputs.first; |
| String path = uriTranslator.translate(uri)?.path ?? uri.path; |
| if (path.endsWith(".dart")) { |
| kernelTarget.read(uri); |
| } else { |
| deprecated_inputError(uri, -1, "Unexpected input: $uri"); |
| } |
| await dillTarget.buildOutlines(); |
| var outline = await kernelTarget.buildOutlines(); |
| if (c.options.debugDump && output != null) { |
| printProgramText(outline, libraryFilter: kernelTarget.isSourceLibrary); |
| } |
| if (output != null) { |
| await writeProgramToFile(outline, output); |
| ticker.logMs("Wrote outline to ${output.toFilePath()}"); |
| } |
| return kernelTarget; |
| } |
| |
| Future<Uri> compile() async { |
| KernelTarget kernelTarget = await buildOutline(); |
| if (exitCode != 0) return null; |
| Uri uri = c.options.output; |
| var program = await kernelTarget.buildProgram(verify: c.options.verify); |
| if (c.options.debugDump) { |
| printProgramText(program, libraryFilter: kernelTarget.isSourceLibrary); |
| } |
| await writeProgramToFile(program, uri); |
| ticker.logMs("Wrote program to ${uri.toFilePath()}"); |
| return uri; |
| } |
| } |
| |
| /// Load the [Program] from the given [uri] and append its libraries |
| /// to the [dillTarget]. |
| void _appendDillForUri(DillTarget dillTarget, Uri uri) { |
| var bytes = new File.fromUri(uri).readAsBytesSync(); |
| var platformProgram = loadProgramFromBytes(bytes); |
| dillTarget.loader.appendLibraries(platformProgram, byteCount: bytes.length); |
| } |