Srdjan Mitrovic
ed73a3d151
BUG= R=fschneider@google.com Review URL: https://codereview.chromium.org//1149713002
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
// Copyright (c) 2012, 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 VM_COMPILER_H_
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#define VM_COMPILER_H_
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#include "vm/allocation.h"
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#include "vm/growable_array.h"
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#include "vm/runtime_entry.h"
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namespace dart {
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// Forward declarations.
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class Class;
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class Function;
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class Library;
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class ParsedFunction;
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class RawInstance;
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class Script;
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class SequenceNode;
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DECLARE_RUNTIME_ENTRY(CompileFunction);
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class Compiler : public AllStatic {
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public:
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// Extracts top level entities from the script and populates
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// the class dictionary of the library.
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//
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// Returns Error::null() if there is no compilation error.
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static RawError* Compile(const Library& library, const Script& script);
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// Extracts function and field symbols from the class and populates
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// the class.
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//
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// Returns Error::null() if there is no compilation error.
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static RawError* CompileClass(const Class& cls);
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// Generates code for given function and sets its code field.
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//
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// Returns Error::null() if there is no compilation error.
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static RawError* CompileFunction(Thread* thread, const Function& function);
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// Generates unoptimized code if not present, current code is unchanged.
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static RawError* EnsureUnoptimizedCode(Thread* thread,
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const Function& function);
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// Generates optimized code for function.
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//
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// Returns Error::null() if there is no compilation error.
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static RawError* CompileOptimizedFunction(
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Thread* thread,
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const Function& function,
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intptr_t osr_id = Isolate::kNoDeoptId);
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// Generates code for given parsed function (without parsing it again) and
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// sets its code field.
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//
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// Returns Error::null() if there is no compilation error.
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static RawError* CompileParsedFunction(ParsedFunction* parsed_function);
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// Generates and executes code for a given code fragment, e.g. a
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// compile time constant expression. Returns the result returned
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// by the fragment.
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//
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// The return value is either a RawInstance on success or a RawError
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// on compilation failure.
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static RawObject* ExecuteOnce(SequenceNode* fragment);
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// Evaluates the initializer expression of the given static field.
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//
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// The return value is either a RawInstance on success or a RawError
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// on compilation failure.
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static RawObject* EvaluateStaticInitializer(const Field& field);
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// Generates local var descriptors and sets it in 'code'. Do not call if the
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// local var descriptor already exists.
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static void ComputeLocalVarDescriptors(const Code& code);
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// Eagerly compiles all functions in a class.
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//
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// Returns Error::null() if there is no compilation error.
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static RawError* CompileAllFunctions(const Class& cls);
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// The following global flags are changed by --noopt handler;
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// the flags are changed when generating best unoptimized code (no runtime
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// feedback, no deoptimization).
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// Default: false.
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static bool always_optimize() { return always_optimize_; }
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static void set_always_optimize(bool value) { always_optimize_ = value; }
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// Default: true.
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static bool guess_other_cid() { return guess_other_cid_; }
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static void set_guess_other_cid(bool value) { guess_other_cid_ = value; }
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private:
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static bool always_optimize_;
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static bool guess_other_cid_;
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};
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} // namespace dart
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#endif // VM_COMPILER_H_
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