1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef V8_IC_CALL_OPTIMIZATION_H_
6 #define V8_IC_CALL_OPTIMIZATION_H_
8 #include "src/code-stubs.h"
9 #include "src/ic/access-compiler.h"
10 #include "src/macro-assembler.h"
11 #include "src/objects.h"
15 // Holds information about possible function call optimizations.
16 class CallOptimization BASE_EMBEDDED {
18 explicit CallOptimization(Handle<JSFunction> function);
20 bool is_constant_call() const { return !constant_function_.is_null(); }
22 Handle<JSFunction> constant_function() const {
23 DCHECK(is_constant_call());
24 return constant_function_;
27 bool is_simple_api_call() const { return is_simple_api_call_; }
29 Handle<FunctionTemplateInfo> expected_receiver_type() const {
30 DCHECK(is_simple_api_call());
31 return expected_receiver_type_;
34 Handle<CallHandlerInfo> api_call_info() const {
35 DCHECK(is_simple_api_call());
36 return api_call_info_;
39 enum HolderLookup { kHolderNotFound, kHolderIsReceiver, kHolderFound };
40 Handle<JSObject> LookupHolderOfExpectedType(
41 Handle<Map> receiver_map, HolderLookup* holder_lookup) const;
43 // Check if the api holder is between the receiver and the holder.
44 bool IsCompatibleReceiver(Handle<Object> receiver,
45 Handle<JSObject> holder) const;
48 void Initialize(Handle<JSFunction> function);
50 // Determines whether the given function can be called using the
51 // fast api call builtin.
52 void AnalyzePossibleApiFunction(Handle<JSFunction> function);
54 Handle<JSFunction> constant_function_;
55 bool is_simple_api_call_;
56 Handle<FunctionTemplateInfo> expected_receiver_type_;
57 Handle<CallHandlerInfo> api_call_info_;
60 } // namespace v8::internal
62 #endif // V8_IC_CALL_OPTIMIZATION_H_