Kevin Millikin
9935e86688
In the VM's Kernel representation, introduce wrapper classes for string and name indexes so it is obvious which one is which. For convenience there is an implicit conversion so that they can each be used where an int is allowed. However, there is no implicit conversion _to_ either of these types. BUG= R=vegorov@google.com Review-Url: https://codereview.chromium.org/2860823002 .
127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
// 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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#ifndef RUNTIME_VM_KERNEL_BINARY_FLOWGRAPH_H_
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#define RUNTIME_VM_KERNEL_BINARY_FLOWGRAPH_H_
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#if !defined(DART_PRECOMPILED_RUNTIME)
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#include <map>
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#include "vm/kernel.h"
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#include "vm/kernel_binary.h"
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#include "vm/kernel_to_il.h"
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#include "vm/object.h"
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namespace dart {
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namespace kernel {
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class StreamingConstantEvaluator {
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public:
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StreamingConstantEvaluator(StreamingFlowGraphBuilder* builder,
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Zone* zone,
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TranslationHelper* h,
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DartTypeTranslator* type_translator);
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virtual ~StreamingConstantEvaluator() {}
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Instance& EvaluateExpression();
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void EvaluateStaticGet();
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void EvaluateSymbolLiteral();
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void EvaluateDoubleLiteral();
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private:
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RawObject* EvaluateConstConstructorCall(const dart::Class& type_class,
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const TypeArguments& type_arguments,
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const Function& constructor,
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const Object& argument);
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bool GetCachedConstant(intptr_t kernel_offset, Instance* value);
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void CacheConstantValue(intptr_t kernel_offset, const Instance& value);
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StreamingFlowGraphBuilder* builder_;
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Isolate* isolate_;
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Zone* zone_;
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TranslationHelper& translation_helper_;
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// DartTypeTranslator& type_translator_;
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Script& script_;
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Instance& result_;
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};
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class StreamingFlowGraphBuilder {
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public:
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StreamingFlowGraphBuilder(FlowGraphBuilder* flow_graph_builder,
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const uint8_t* buffer,
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intptr_t buffer_length)
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: flow_graph_builder_(flow_graph_builder),
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translation_helper_(flow_graph_builder->translation_helper_),
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zone_(flow_graph_builder->zone_),
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reader_(new Reader(buffer, buffer_length)),
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constant_evaluator_(this,
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flow_graph_builder->zone_,
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&flow_graph_builder->translation_helper_,
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&flow_graph_builder->type_translator_) {}
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virtual ~StreamingFlowGraphBuilder() {}
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Fragment BuildAt(intptr_t kernel_offset);
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private:
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intptr_t ReaderOffset();
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void SetOffset(intptr_t offset);
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void SkipBytes(intptr_t skip);
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uint32_t ReadUInt();
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intptr_t ReadListLength();
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NameIndex ReadCanonicalNameReference();
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TokenPosition ReadPosition(bool record = true);
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Tag ReadTag(uint8_t* payload = NULL);
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CatchBlock* catch_block();
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ScopeBuildingResult* scopes();
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ParsedFunction* parsed_function();
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Fragment DebugStepCheck(TokenPosition position);
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Fragment LoadLocal(LocalVariable* variable);
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Fragment PushArgument();
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Fragment RethrowException(TokenPosition position, int catch_try_index);
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Fragment ThrowNoSuchMethodError();
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Fragment Constant(const Object& value);
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Fragment IntConstant(int64_t value);
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Fragment LoadStaticField();
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Fragment StaticCall(TokenPosition position,
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const Function& target,
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intptr_t argument_count);
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Fragment BuildInvalidExpression();
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Fragment BuildStaticGet();
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Fragment BuildSymbolLiteral();
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Fragment BuildThisExpression();
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Fragment BuildRethrow();
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Fragment BuildBigIntLiteral();
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Fragment BuildStringLiteral();
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Fragment BuildIntLiteral(uint8_t payload);
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Fragment BuildIntLiteral(bool is_negative);
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Fragment BuildDoubleLiteral();
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Fragment BuildBoolLiteral(bool value);
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Fragment BuildNullLiteral();
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FlowGraphBuilder* flow_graph_builder_;
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TranslationHelper& translation_helper_;
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Zone* zone_;
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Reader* reader_;
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StreamingConstantEvaluator constant_evaluator_;
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friend class StreamingConstantEvaluator;
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};
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} // namespace kernel
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} // namespace dart
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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#endif // RUNTIME_VM_KERNEL_BINARY_FLOWGRAPH_H_
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