1 // Copyright 2016 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 #include "src/builtins/builtins.h" 6 #include "src/builtins/builtins-utils.h" 7 8 #include "src/counters.h" 9 #include "src/objects-inl.h" 10 #include "src/string-builder.h" 11 #include "src/wasm/wasm-module.h" 12 13 namespace v8 { 14 namespace internal { 15 16 #define CHECK_CALLSITE(recv, method) \ 17 CHECK_RECEIVER(JSObject, recv, method); \ 18 if (!JSReceiver::HasOwnProperty( \ 19 recv, isolate->factory()->call_site_frame_array_symbol()) \ 20 .FromMaybe(false)) { \ 21 THROW_NEW_ERROR_RETURN_FAILURE( \ 22 isolate, \ 23 NewTypeError(MessageTemplate::kCallSiteMethod, \ 24 isolate->factory()->NewStringFromAsciiChecked(method))); \ 25 } 26 27 namespace { 28 29 Object* PositiveNumberOrNull(int value, Isolate* isolate) { 30 if (value >= 0) return *isolate->factory()->NewNumberFromInt(value); 31 return isolate->heap()->null_value(); 32 } 33 34 Handle<FrameArray> GetFrameArray(Isolate* isolate, Handle<JSObject> object) { 35 Handle<Object> frame_array_obj = JSObject::GetDataProperty( 36 object, isolate->factory()->call_site_frame_array_symbol()); 37 return Handle<FrameArray>::cast(frame_array_obj); 38 } 39 40 int GetFrameIndex(Isolate* isolate, Handle<JSObject> object) { 41 Handle<Object> frame_index_obj = JSObject::GetDataProperty( 42 object, isolate->factory()->call_site_frame_index_symbol()); 43 return Smi::cast(*frame_index_obj)->value(); 44 } 45 46 } // namespace 47 48 BUILTIN(CallSitePrototypeGetColumnNumber) { 49 HandleScope scope(isolate); 50 CHECK_CALLSITE(recv, "getColumnNumber"); 51 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 52 GetFrameIndex(isolate, recv)); 53 return PositiveNumberOrNull(it.Frame()->GetColumnNumber(), isolate); 54 } 55 56 BUILTIN(CallSitePrototypeGetEvalOrigin) { 57 HandleScope scope(isolate); 58 CHECK_CALLSITE(recv, "getEvalOrigin"); 59 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 60 GetFrameIndex(isolate, recv)); 61 return *it.Frame()->GetEvalOrigin(); 62 } 63 64 BUILTIN(CallSitePrototypeGetFileName) { 65 HandleScope scope(isolate); 66 CHECK_CALLSITE(recv, "getFileName"); 67 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 68 GetFrameIndex(isolate, recv)); 69 return *it.Frame()->GetFileName(); 70 } 71 72 BUILTIN(CallSitePrototypeGetFunction) { 73 HandleScope scope(isolate); 74 CHECK_CALLSITE(recv, "getFunction"); 75 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 76 GetFrameIndex(isolate, recv)); 77 78 StackFrameBase* frame = it.Frame(); 79 if (frame->IsStrict()) return isolate->heap()->undefined_value(); 80 return *frame->GetFunction(); 81 } 82 83 BUILTIN(CallSitePrototypeGetFunctionName) { 84 HandleScope scope(isolate); 85 CHECK_CALLSITE(recv, "getFunctionName"); 86 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 87 GetFrameIndex(isolate, recv)); 88 return *it.Frame()->GetFunctionName(); 89 } 90 91 BUILTIN(CallSitePrototypeGetLineNumber) { 92 HandleScope scope(isolate); 93 CHECK_CALLSITE(recv, "getLineNumber"); 94 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 95 GetFrameIndex(isolate, recv)); 96 return PositiveNumberOrNull(it.Frame()->GetLineNumber(), isolate); 97 } 98 99 BUILTIN(CallSitePrototypeGetMethodName) { 100 HandleScope scope(isolate); 101 CHECK_CALLSITE(recv, "getMethodName"); 102 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 103 GetFrameIndex(isolate, recv)); 104 return *it.Frame()->GetMethodName(); 105 } 106 107 BUILTIN(CallSitePrototypeGetPosition) { 108 HandleScope scope(isolate); 109 CHECK_CALLSITE(recv, "getPosition"); 110 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 111 GetFrameIndex(isolate, recv)); 112 return Smi::FromInt(it.Frame()->GetPosition()); 113 } 114 115 BUILTIN(CallSitePrototypeGetScriptNameOrSourceURL) { 116 HandleScope scope(isolate); 117 CHECK_CALLSITE(recv, "getScriptNameOrSourceUrl"); 118 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 119 GetFrameIndex(isolate, recv)); 120 return *it.Frame()->GetScriptNameOrSourceUrl(); 121 } 122 123 BUILTIN(CallSitePrototypeGetThis) { 124 HandleScope scope(isolate); 125 CHECK_CALLSITE(recv, "getThis"); 126 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 127 GetFrameIndex(isolate, recv)); 128 129 StackFrameBase* frame = it.Frame(); 130 if (frame->IsStrict()) return isolate->heap()->undefined_value(); 131 return *frame->GetReceiver(); 132 } 133 134 BUILTIN(CallSitePrototypeGetTypeName) { 135 HandleScope scope(isolate); 136 CHECK_CALLSITE(recv, "getTypeName"); 137 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 138 GetFrameIndex(isolate, recv)); 139 return *it.Frame()->GetTypeName(); 140 } 141 142 BUILTIN(CallSitePrototypeIsConstructor) { 143 HandleScope scope(isolate); 144 CHECK_CALLSITE(recv, "isConstructor"); 145 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 146 GetFrameIndex(isolate, recv)); 147 return isolate->heap()->ToBoolean(it.Frame()->IsConstructor()); 148 } 149 150 BUILTIN(CallSitePrototypeIsEval) { 151 HandleScope scope(isolate); 152 CHECK_CALLSITE(recv, "isEval"); 153 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 154 GetFrameIndex(isolate, recv)); 155 return isolate->heap()->ToBoolean(it.Frame()->IsEval()); 156 } 157 158 BUILTIN(CallSitePrototypeIsNative) { 159 HandleScope scope(isolate); 160 CHECK_CALLSITE(recv, "isNative"); 161 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 162 GetFrameIndex(isolate, recv)); 163 return isolate->heap()->ToBoolean(it.Frame()->IsNative()); 164 } 165 166 BUILTIN(CallSitePrototypeIsToplevel) { 167 HandleScope scope(isolate); 168 CHECK_CALLSITE(recv, "isToplevel"); 169 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 170 GetFrameIndex(isolate, recv)); 171 return isolate->heap()->ToBoolean(it.Frame()->IsToplevel()); 172 } 173 174 BUILTIN(CallSitePrototypeToString) { 175 HandleScope scope(isolate); 176 CHECK_CALLSITE(recv, "toString"); 177 FrameArrayIterator it(isolate, GetFrameArray(isolate, recv), 178 GetFrameIndex(isolate, recv)); 179 RETURN_RESULT_OR_FAILURE(isolate, it.Frame()->ToString()); 180 } 181 182 #undef CHECK_CALLSITE 183 184 } // namespace internal 185 } // namespace v8 186
