Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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. |
| 4 | |
| 5 | #ifndef V8_IC_CALL_OPTIMIZATION_H_ |
| 6 | #define V8_IC_CALL_OPTIMIZATION_H_ |
| 7 | |
| 8 | #include "src/code-stubs.h" |
| 9 | #include "src/ic/access-compiler.h" |
| 10 | #include "src/macro-assembler.h" |
| 11 | #include "src/objects.h" |
| 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | // Holds information about possible function call optimizations. |
| 16 | class CallOptimization BASE_EMBEDDED { |
| 17 | public: |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 18 | explicit CallOptimization(Handle<Object> function); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 19 | |
| 20 | bool is_constant_call() const { return !constant_function_.is_null(); } |
| 21 | |
| 22 | Handle<JSFunction> constant_function() const { |
| 23 | DCHECK(is_constant_call()); |
| 24 | return constant_function_; |
| 25 | } |
| 26 | |
| 27 | bool is_simple_api_call() const { return is_simple_api_call_; } |
| 28 | |
| 29 | Handle<FunctionTemplateInfo> expected_receiver_type() const { |
| 30 | DCHECK(is_simple_api_call()); |
| 31 | return expected_receiver_type_; |
| 32 | } |
| 33 | |
| 34 | Handle<CallHandlerInfo> api_call_info() const { |
| 35 | DCHECK(is_simple_api_call()); |
| 36 | return api_call_info_; |
| 37 | } |
| 38 | |
| 39 | enum HolderLookup { kHolderNotFound, kHolderIsReceiver, kHolderFound }; |
| 40 | Handle<JSObject> LookupHolderOfExpectedType( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 41 | Handle<Map> receiver_map, HolderLookup* holder_lookup, |
| 42 | int* holder_depth_in_prototype_chain = NULL) const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 43 | |
| 44 | // Check if the api holder is between the receiver and the holder. |
| 45 | bool IsCompatibleReceiver(Handle<Object> receiver, |
| 46 | Handle<JSObject> holder) const; |
| 47 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 48 | // Check if the api holder is between the receiver and the holder. |
| 49 | bool IsCompatibleReceiverMap(Handle<Map> receiver_map, |
| 50 | Handle<JSObject> holder) const; |
| 51 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 52 | private: |
| 53 | void Initialize(Handle<JSFunction> function); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 54 | void Initialize(Handle<FunctionTemplateInfo> function_template_info); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 55 | |
| 56 | // Determines whether the given function can be called using the |
| 57 | // fast api call builtin. |
| 58 | void AnalyzePossibleApiFunction(Handle<JSFunction> function); |
| 59 | |
| 60 | Handle<JSFunction> constant_function_; |
| 61 | bool is_simple_api_call_; |
| 62 | Handle<FunctionTemplateInfo> expected_receiver_type_; |
| 63 | Handle<CallHandlerInfo> api_call_info_; |
| 64 | }; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | } // namespace internal |
| 66 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 67 | |
| 68 | #endif // V8_IC_CALL_OPTIMIZATION_H_ |