Dmitry Stefantsov
b87a479c2b
All generic methods are equipped with one extra named parameter for passing type arguments as a list of type values. Additinally, this change forces strong mode usage for 'dartk' in 'reified_dart'. Strong mode is required for loader to not strip away type arguments from generic methods. In future, a command line argument may be implemented for that (e.g. --generic-methods), if generic method support will land before the strong mode. R=karlklose@google.com Review-Url: https://codereview.chromium.org/2713163002 .
50 lines
2.0 KiB
Dart
50 lines
2.0 KiB
Dart
// Copyright (c) 2017, 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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library kernel.target.vmreify;
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import '../ast.dart' show Program;
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import '../transformations/generic_types_reification.dart' as reify
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show transformProgram;
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import 'targets.dart' show TargetFlags;
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import 'vmcc.dart' as vmcc_target;
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/// Specializes the kernel IR to the Dart VM with reified generic types.
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class VmGenericTypesReifiedTarget extends vmcc_target.VmClosureConvertedTarget {
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VmGenericTypesReifiedTarget(TargetFlags flags) : super(flags);
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@override
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String get name => "vmreify";
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// This is the order that bootstrap libraries are loaded according to
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// `runtime/vm/object_store.h`.
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List<String> get extraRequiredLibraries {
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return new List<String>.from(super.extraRequiredLibraries)
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..add("${flags.kernelRuntime.resolve('reify/types.dart')}")
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..add("${flags.kernelRuntime.resolve('reify/declarations.dart')}")
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..add("${flags.kernelRuntime.resolve('reify/interceptors.dart')}");
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}
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@override
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void performGlobalTransformations(Program program) {
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super.performGlobalTransformations(program);
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// TODO(dmitryas) this transformation should be made modular
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reify.transformProgram(program);
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}
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// Disable tree shaking for Generic Types Reification. There are some runtime
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// libraries that are required for the transformation and are shaken off,
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// because they aren't invoked from the program being transformed prior to
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// the transformation.
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// TODO(dmitryas): remove this when the libraries are in dart:_internal
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@override
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void performTreeShaking(Program program) {}
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// Here we disable Erasure pass of VmTarget class. The information deleted by
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// the Erasure pass is required for Generic Type Reification. Also, reify
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// transformation also performs its own Erasure pass.
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@override
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void performErasure(Program program) {}
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}
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