iposva@google.com
99d563982c
Review URL: https://chromiumcodereview.appspot.com//10827288 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10616 260f80e4-7a28-3924-810f-c04153c831b5
78 lines
3.1 KiB
C++
78 lines
3.1 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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// Class for intrinsifying functions.
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#include "vm/intrinsifier.h"
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#include "vm/flags.h"
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#include "vm/object.h"
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namespace dart {
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DEFINE_FLAG(bool, intrinsify, true, "Instrinsify when possible");
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static bool CompareNames(const char* test_name, const char* name) {
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if (strcmp(test_name, name) == 0) {
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return true;
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}
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if ((name[0] == '_') && (test_name[0] == '_')) {
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// Check if the private class is member of corelib and matches the
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// test_class_name.
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const Library& core_lib = Library::Handle(Library::CoreLibrary());
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const Library& core_impl_lib = Library::Handle(Library::CoreImplLibrary());
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String& test_str = String::Handle(String::New(test_name));
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String& test_str_with_key = String::Handle();
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test_str_with_key =
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String::Concat(test_str, String::Handle(core_lib.private_key()));
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if (strcmp(test_str_with_key.ToCString(), name) == 0) {
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return true;
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}
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test_str_with_key =
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String::Concat(test_str, String::Handle(core_impl_lib.private_key()));
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if (strcmp(test_str_with_key.ToCString(), name) == 0) {
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return true;
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}
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}
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return false;
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}
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// Returns true if the function matches function_name and class_name, with
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// special recognition of corelib private classes.
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static bool TestFunction(const Function& function,
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const char* function_class_name,
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const char* function_name,
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const char* test_class_name,
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const char* test_function_name) {
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return CompareNames(test_class_name, function_class_name) &&
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CompareNames(test_function_name, function_name);
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}
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bool Intrinsifier::Intrinsify(const Function& function, Assembler* assembler) {
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if (!FLAG_intrinsify) return false;
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const char* function_name = String::Handle(function.name()).ToCString();
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const Class& function_class = Class::Handle(function.Owner());
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const char* class_name = String::Handle(function_class.Name()).ToCString();
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// Only core library methods can be intrinsified.
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const Library& core_lib = Library::Handle(Library::CoreLibrary());
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const Library& core_impl_lib = Library::Handle(Library::CoreImplLibrary());
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if ((function_class.library() != core_lib.raw()) &&
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(function_class.library() != core_impl_lib.raw())) {
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return false;
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}
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#define FIND_INTRINSICS(test_class_name, test_function_name, destination) \
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if (TestFunction(function, \
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class_name, function_name, \
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#test_class_name, #test_function_name)) { \
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return destination(assembler); \
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} \
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INTRINSIC_LIST(FIND_INTRINSICS);
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#undef FIND_INTRINSICS
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return false;
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}
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} // namespace dart
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