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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_RUNTIME_RUNTIME_UTILS_H_ | 5 #ifndef V8_RUNTIME_RUNTIME_UTILS_H_ |
6 #define V8_RUNTIME_RUNTIME_UTILS_H_ | 6 #define V8_RUNTIME_RUNTIME_UTILS_H_ |
7 | 7 |
8 #include "src/base/logging.h" | 8 #include "src/base/logging.h" |
9 #include "src/runtime/runtime.h" | 9 #include "src/runtime/runtime.h" |
10 | 10 |
11 namespace v8 { | 11 namespace v8 { |
12 namespace internal { | 12 namespace internal { |
13 | 13 |
14 #ifdef DEBUG | |
15 | |
16 #define RUNTIME_ASSERT(value) \ | |
17 do { \ | |
18 if (!(value)) { \ | |
19 V8_RuntimeError(__FILE__, __LINE__, #value); \ | |
20 return isolate->ThrowIllegalOperation(); \ | |
21 } \ | |
22 } while (0) | |
23 | |
24 #else | |
25 | |
26 #define RUNTIME_ASSERT(value) \ | |
27 do { \ | |
28 if (!(value)) { \ | |
29 return isolate->ThrowIllegalOperation(); \ | |
30 } \ | |
31 } while (0) | |
32 | |
33 #endif | |
34 | |
35 // Cast the given object to a value of the specified type and store | 14 // Cast the given object to a value of the specified type and store |
36 // it in a variable with the given name. If the object is not of the | 15 // it in a variable with the given name. If the object is not of the |
37 // expected type call IllegalOperation and return. | 16 // expected type we crash safely. |
38 #define CONVERT_ARG_CHECKED(Type, name, index) \ | 17 #define CONVERT_ARG_CHECKED(Type, name, index) \ |
39 RUNTIME_ASSERT(args[index]->Is##Type()); \ | 18 CHECK(args[index]->Is##Type()); \ |
40 Type* name = Type::cast(args[index]); | 19 Type* name = Type::cast(args[index]); |
41 | 20 |
42 #define CONVERT_ARG_HANDLE_CHECKED(Type, name, index) \ | 21 #define CONVERT_ARG_HANDLE_CHECKED(Type, name, index) \ |
43 RUNTIME_ASSERT(args[index]->Is##Type()); \ | 22 CHECK(args[index]->Is##Type()); \ |
44 Handle<Type> name = args.at<Type>(index); | 23 Handle<Type> name = args.at<Type>(index); |
45 | 24 |
46 #define CONVERT_NUMBER_ARG_HANDLE_CHECKED(name, index) \ | 25 #define CONVERT_NUMBER_ARG_HANDLE_CHECKED(name, index) \ |
47 RUNTIME_ASSERT(args[index]->IsNumber()); \ | 26 CHECK(args[index]->IsNumber()); \ |
48 Handle<Object> name = args.at<Object>(index); | 27 Handle<Object> name = args.at<Object>(index); |
49 | 28 |
50 // Cast the given object to a boolean and store it in a variable with | 29 // Cast the given object to a boolean and store it in a variable with |
51 // the given name. If the object is not a boolean call IllegalOperation | 30 // the given name. If the object is not a boolean we crash safely. |
52 // and return. | |
53 #define CONVERT_BOOLEAN_ARG_CHECKED(name, index) \ | 31 #define CONVERT_BOOLEAN_ARG_CHECKED(name, index) \ |
54 RUNTIME_ASSERT(args[index]->IsBoolean()); \ | 32 CHECK(args[index]->IsBoolean()); \ |
55 bool name = args[index]->IsTrue(isolate); | 33 bool name = args[index]->IsTrue(isolate); |
56 | 34 |
57 // Cast the given argument to a Smi and store its value in an int variable | 35 // Cast the given argument to a Smi and store its value in an int variable |
58 // with the given name. If the argument is not a Smi call IllegalOperation | 36 // with the given name. If the argument is not a Smi we crash safely. |
59 // and return. | |
60 #define CONVERT_SMI_ARG_CHECKED(name, index) \ | 37 #define CONVERT_SMI_ARG_CHECKED(name, index) \ |
61 RUNTIME_ASSERT(args[index]->IsSmi()); \ | 38 CHECK(args[index]->IsSmi()); \ |
62 int name = args.smi_at(index); | 39 int name = args.smi_at(index); |
63 | 40 |
64 // Cast the given argument to a double and store it in a variable with | 41 // Cast the given argument to a double and store it in a variable with |
65 // the given name. If the argument is not a number (as opposed to | 42 // the given name. If the argument is not a number (as opposed to |
66 // the number not-a-number) call IllegalOperation and return. | 43 // the number not-a-number) we crash safely. |
67 #define CONVERT_DOUBLE_ARG_CHECKED(name, index) \ | 44 #define CONVERT_DOUBLE_ARG_CHECKED(name, index) \ |
68 RUNTIME_ASSERT(args[index]->IsNumber()); \ | 45 CHECK(args[index]->IsNumber()); \ |
69 double name = args.number_at(index); | 46 double name = args.number_at(index); |
70 | 47 |
71 | |
72 // Cast the given argument to a size_t and store its value in a variable with | 48 // Cast the given argument to a size_t and store its value in a variable with |
73 // the given name. If the argument is not a size_t call IllegalOperation and | 49 // the given name. If the argument is not a size_t we crash safely. |
74 // return. | |
75 #define CONVERT_SIZE_ARG_CHECKED(name, index) \ | 50 #define CONVERT_SIZE_ARG_CHECKED(name, index) \ |
76 RUNTIME_ASSERT(args[index]->IsNumber()); \ | 51 CHECK(args[index]->IsNumber()); \ |
77 Handle<Object> name##_object = args.at<Object>(index); \ | 52 Handle<Object> name##_object = args.at<Object>(index); \ |
78 size_t name = 0; \ | 53 size_t name = 0; \ |
79 RUNTIME_ASSERT(TryNumberToSize(isolate, *name##_object, &name)); | 54 CHECK(TryNumberToSize(isolate, *name##_object, &name)); |
80 | |
81 | 55 |
82 // Call the specified converter on the object *comand store the result in | 56 // Call the specified converter on the object *comand store the result in |
83 // a variable of the specified type with the given name. If the | 57 // a variable of the specified type with the given name. If the |
84 // object is not a Number call IllegalOperation and return. | 58 // object is not a Number we crash safely. |
85 #define CONVERT_NUMBER_CHECKED(type, name, Type, obj) \ | 59 #define CONVERT_NUMBER_CHECKED(type, name, Type, obj) \ |
86 RUNTIME_ASSERT(obj->IsNumber()); \ | 60 CHECK(obj->IsNumber()); \ |
87 type name = NumberTo##Type(obj); | 61 type name = NumberTo##Type(obj); |
88 | 62 |
89 | |
90 // Cast the given argument to PropertyDetails and store its value in a | 63 // Cast the given argument to PropertyDetails and store its value in a |
91 // variable with the given name. If the argument is not a Smi call | 64 // variable with the given name. If the argument is not a Smi we crash safely. |
92 // IllegalOperation and return. | |
93 #define CONVERT_PROPERTY_DETAILS_CHECKED(name, index) \ | 65 #define CONVERT_PROPERTY_DETAILS_CHECKED(name, index) \ |
94 RUNTIME_ASSERT(args[index]->IsSmi()); \ | 66 CHECK(args[index]->IsSmi()); \ |
95 PropertyDetails name = PropertyDetails(Smi::cast(args[index])); | 67 PropertyDetails name = PropertyDetails(Smi::cast(args[index])); |
96 | 68 |
97 | |
98 // Assert that the given argument has a valid value for a LanguageMode | 69 // Assert that the given argument has a valid value for a LanguageMode |
99 // and store it in a LanguageMode variable with the given name. | 70 // and store it in a LanguageMode variable with the given name. |
100 #define CONVERT_LANGUAGE_MODE_ARG_CHECKED(name, index) \ | 71 #define CONVERT_LANGUAGE_MODE_ARG_CHECKED(name, index) \ |
101 RUNTIME_ASSERT(args[index]->IsSmi()); \ | 72 CHECK(args[index]->IsSmi()); \ |
102 RUNTIME_ASSERT(is_valid_language_mode(args.smi_at(index))); \ | 73 CHECK(is_valid_language_mode(args.smi_at(index))); \ |
103 LanguageMode name = static_cast<LanguageMode>(args.smi_at(index)); | 74 LanguageMode name = static_cast<LanguageMode>(args.smi_at(index)); |
104 | 75 |
105 | |
106 // Assert that the given argument is a number within the Int32 range | 76 // Assert that the given argument is a number within the Int32 range |
107 // and convert it to int32_t. If the argument is not an Int32 call | 77 // and convert it to int32_t. If the argument is not an Int32 we crash safely. |
108 // IllegalOperation and return. | |
109 #define CONVERT_INT32_ARG_CHECKED(name, index) \ | 78 #define CONVERT_INT32_ARG_CHECKED(name, index) \ |
110 RUNTIME_ASSERT(args[index]->IsNumber()); \ | 79 CHECK(args[index]->IsNumber()); \ |
111 int32_t name = 0; \ | 80 int32_t name = 0; \ |
112 RUNTIME_ASSERT(args[index]->ToInt32(&name)); | 81 CHECK(args[index]->ToInt32(&name)); |
113 | |
114 | 82 |
115 // Cast the given argument to PropertyAttributes and store its value in a | 83 // Cast the given argument to PropertyAttributes and store its value in a |
116 // variable with the given name. If the argument is not a Smi call or the | 84 // variable with the given name. If the argument is not a Smi or the |
117 // enum value is out of range, call IllegalOperation and return. | 85 // enum value is out of range, we crash safely. |
118 #define CONVERT_PROPERTY_ATTRIBUTES_CHECKED(name, index) \ | 86 #define CONVERT_PROPERTY_ATTRIBUTES_CHECKED(name, index) \ |
119 RUNTIME_ASSERT(args[index]->IsSmi()); \ | 87 CHECK(args[index]->IsSmi()); \ |
120 RUNTIME_ASSERT( \ | 88 CHECK((args.smi_at(index) & ~(READ_ONLY | DONT_ENUM | DONT_DELETE)) == 0); \ |
121 (args.smi_at(index) & ~(READ_ONLY | DONT_ENUM | DONT_DELETE)) == 0); \ | |
122 PropertyAttributes name = static_cast<PropertyAttributes>(args.smi_at(index)); | 89 PropertyAttributes name = static_cast<PropertyAttributes>(args.smi_at(index)); |
123 | 90 |
124 | |
125 // A mechanism to return a pair of Object pointers in registers (if possible). | 91 // A mechanism to return a pair of Object pointers in registers (if possible). |
126 // How this is achieved is calling convention-dependent. | 92 // How this is achieved is calling convention-dependent. |
127 // All currently supported x86 compiles uses calling conventions that are cdecl | 93 // All currently supported x86 compiles uses calling conventions that are cdecl |
128 // variants where a 64-bit value is returned in two 32-bit registers | 94 // variants where a 64-bit value is returned in two 32-bit registers |
129 // (edx:eax on ia32, r1:r0 on ARM). | 95 // (edx:eax on ia32, r1:r0 on ARM). |
130 // In AMD-64 calling convention a struct of two pointers is returned in rdx:rax. | 96 // In AMD-64 calling convention a struct of two pointers is returned in rdx:rax. |
131 // In Win64 calling convention, a struct of two pointers is returned in memory, | 97 // In Win64 calling convention, a struct of two pointers is returned in memory, |
132 // allocated by the caller, and passed as a pointer in a hidden first parameter. | 98 // allocated by the caller, and passed as a pointer in a hidden first parameter. |
133 #ifdef V8_HOST_ARCH_64_BIT | 99 #ifdef V8_HOST_ARCH_64_BIT |
134 struct ObjectPair { | 100 struct ObjectPair { |
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188 static inline ObjectTriple MakeTriple(Object* x, Object* y, Object* z) { | 154 static inline ObjectTriple MakeTriple(Object* x, Object* y, Object* z) { |
189 ObjectTriple result = {x, y, z}; | 155 ObjectTriple result = {x, y, z}; |
190 // ObjectTriple is assigned to a hidden first argument. | 156 // ObjectTriple is assigned to a hidden first argument. |
191 return result; | 157 return result; |
192 } | 158 } |
193 | 159 |
194 } // namespace internal | 160 } // namespace internal |
195 } // namespace v8 | 161 } // namespace v8 |
196 | 162 |
197 #endif // V8_RUNTIME_RUNTIME_UTILS_H_ | 163 #endif // V8_RUNTIME_RUNTIME_UTILS_H_ |
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