Peter von der Ahé
4f2bdff90b
Change-Id: I1a3cc03fba9783807fa637a9d42fdbad68ee7686 Reviewed-on: https://dart-review.googlesource.com/31040 Commit-Queue: Peter von der Ahé <ahe@google.com> Reviewed-by: Kevin Millikin <kmillikin@google.com>
84 lines
2.9 KiB
Dart
84 lines
2.9 KiB
Dart
// Copyright (c) 2017, 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.
|
|
|
|
/// Defines the VM-specific translation of Dart source code to kernel binaries.
|
|
library vm.kernel_front_end;
|
|
|
|
import 'dart:async';
|
|
|
|
import 'package:front_end/src/api_prototype/compiler_options.dart'
|
|
show CompilerOptions, ErrorHandler;
|
|
import 'package:front_end/src/api_prototype/kernel_generator.dart'
|
|
show kernelForProgram;
|
|
import 'package:front_end/src/api_prototype/compilation_message.dart'
|
|
show CompilationMessage, Severity;
|
|
import 'package:front_end/src/fasta/severity.dart' show Severity;
|
|
import 'package:kernel/ast.dart' show Component;
|
|
import 'package:kernel/core_types.dart' show CoreTypes;
|
|
|
|
import 'transformations/devirtualization.dart' as devirtualization
|
|
show transformComponent;
|
|
import 'transformations/no_dynamic_invocations_annotator.dart'
|
|
as no_dynamic_invocations_annotator show transformComponent;
|
|
import 'transformations/type_flow/transformer.dart' as globalTypeFlow
|
|
show transformComponent;
|
|
|
|
/// Generates a kernel representation of the program whose main library is in
|
|
/// the given [source]. Intended for whole program (non-modular) compilation.
|
|
///
|
|
/// VM-specific replacement of [kernelForProgram].
|
|
///
|
|
Future<Component> compileToKernel(Uri source, CompilerOptions options,
|
|
{bool aot: false,
|
|
bool useGlobalTypeFlowAnalysis: false,
|
|
List<String> entryPoints}) async {
|
|
// Replace error handler to detect if there are compilation errors.
|
|
final errorDetector =
|
|
new ErrorDetector(previousErrorHandler: options.onError);
|
|
options.onError = errorDetector;
|
|
|
|
final component = await kernelForProgram(source, options);
|
|
|
|
// Restore error handler (in case 'options' are reused).
|
|
options.onError = errorDetector.previousErrorHandler;
|
|
|
|
// Run global transformations only if component is correct.
|
|
if (aot && (component != null) && !errorDetector.hasCompilationErrors) {
|
|
_runGlobalTransformations(
|
|
component, options.strongMode, useGlobalTypeFlowAnalysis, entryPoints);
|
|
}
|
|
|
|
return component;
|
|
}
|
|
|
|
_runGlobalTransformations(Component component, bool strongMode,
|
|
bool useGlobalTypeFlowAnalysis, List<String> entryPoints) {
|
|
if (strongMode) {
|
|
final coreTypes = new CoreTypes(component);
|
|
|
|
if (useGlobalTypeFlowAnalysis) {
|
|
globalTypeFlow.transformComponent(coreTypes, component, entryPoints);
|
|
} else {
|
|
devirtualization.transformComponent(coreTypes, component);
|
|
}
|
|
|
|
no_dynamic_invocations_annotator.transformComponent(component);
|
|
}
|
|
}
|
|
|
|
class ErrorDetector {
|
|
final ErrorHandler previousErrorHandler;
|
|
bool hasCompilationErrors = false;
|
|
|
|
ErrorDetector({this.previousErrorHandler});
|
|
|
|
void call(CompilationMessage message) {
|
|
if (message.severity == Severity.error) {
|
|
hasCompilationErrors = true;
|
|
}
|
|
|
|
previousErrorHandler?.call(message);
|
|
}
|
|
}
|