Files
sdk/runtime/vm/compiler/frontend/bytecode_reader.h
T
Alexander Markov 7f8db8d06f [vm] Refactoring: extract constant evaluator and fingerprints helper
This CL continues refactoring aimed at isolating StreamingFlowGraphBuilder.

StreamingFlowGraphBuilder dependency is removed from classes
* StreamingConstantEvaluator (it still depends on FlowGraphBuilder)
* ConstantHelper
* SimpleExpressionConverter
and several methods in object.cc.

StreamingConstantEvaluator and ConstantHelper are moved from
kernel_binary_flowgraph{.h, .cc} to a new source file
constant_evaluator{.h, .cc}. StreamingConstantEvaluator is renamed
to ConstantEvaluator.

KernelFingerprintHelper and KernelSourceFingerprintHelper are moved to
a new source file kernel_fingerprints{.h, .cc}.

Instances of kernel::FlowGraphBuilder no longer contain back reference
to a StreamingFlowGraphBuilder. In order to drop this circular dependency
TranslateFinallyFinalizers() is moved from FlowGraphBuilder to
StreamingFlowGraphBuilder.

Change-Id: Id550d22b3567dea9512328a900935bd6145a8107
Reviewed-on: https://dart-review.googlesource.com/64463
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2018-07-11 21:30:13 +00:00

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1.7 KiB
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// Copyright (c) 2018, 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.
#ifndef RUNTIME_VM_COMPILER_FRONTEND_BYTECODE_READER_H_
#define RUNTIME_VM_COMPILER_FRONTEND_BYTECODE_READER_H_
#include "vm/compiler/frontend/kernel_translation_helper.h"
#include "vm/object.h"
#if !defined(DART_PRECOMPILED_RUNTIME)
#if defined(DART_USE_INTERPRETER)
namespace dart {
namespace kernel {
// Helper class which provides access to bytecode metadata.
class BytecodeMetadataHelper : public MetadataHelper {
public:
static const char* tag() { return "vm.bytecode"; }
explicit BytecodeMetadataHelper(KernelReaderHelper* helper,
TypeTranslator* type_translator,
ActiveClass* active_class);
void ReadMetadata(const Function& function);
private:
// Returns the index of the last read pool entry.
intptr_t ReadPoolEntries(const Function& function,
const Function& inner_function,
const ObjectPool& pool,
intptr_t from_index);
RawCode* ReadBytecode(const ObjectPool& pool);
void ReadExceptionsTable(const Code& bytecode);
RawTypedData* NativeEntry(const Function& function,
const String& external_name);
TypeTranslator& type_translator_;
ActiveClass* const active_class_;
DISALLOW_COPY_AND_ASSIGN(BytecodeMetadataHelper);
};
} // namespace kernel
} // namespace dart
#endif // defined(DART_USE_INTERPRETER)
#endif // !defined(DART_PRECOMPILED_RUNTIME)
#endif // RUNTIME_VM_COMPILER_FRONTEND_BYTECODE_READER_H_