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39 | #ifndef QV4RUNTIMEAPI_P_H | - |
40 | #define QV4RUNTIMEAPI_P_H | - |
41 | | - |
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52 | | - |
53 | #include <private/qv4global_p.h> | - |
54 | | - |
55 | QT_BEGIN_NAMESPACE | - |
56 | | - |
57 | namespace QV4 { | - |
58 | | - |
59 | typedef uint Bool; | - |
60 | struct NoThrowEngine; | - |
61 | namespace { | - |
62 | template <typename T> | - |
63 | struct ExceptionCheck { | - |
64 | enum { NeedsCheck = 1 }; | - |
65 | }; | - |
66 | | - |
67 | template <> | - |
68 | struct ExceptionCheck<void (*)(QV4::NoThrowEngine *)> { | - |
69 | enum { NeedsCheck = 0 }; | - |
70 | }; | - |
71 | template <typename A> | - |
72 | struct ExceptionCheck<void (*)(A, QV4::NoThrowEngine)> { | - |
73 | enum { NeedsCheck = 0 }; | - |
74 | }; | - |
75 | template <> | - |
76 | struct ExceptionCheck<QV4::ReturnedValue (*)(QV4::NoThrowEngine *)> { | - |
77 | enum { NeedsCheck = 0 }; | - |
78 | }; | - |
79 | template <typename A> | - |
80 | struct ExceptionCheck<QV4::ReturnedValue (*)(QV4::NoThrowEngine *, A)> { | - |
81 | enum { NeedsCheck = 0 }; | - |
82 | }; | - |
83 | template <typename A, typename B> | - |
84 | struct ExceptionCheck<QV4::ReturnedValue (*)(QV4::NoThrowEngine *, A, B)> { | - |
85 | enum { NeedsCheck = 0 }; | - |
86 | }; | - |
87 | template <typename A, typename B, typename C> | - |
88 | struct ExceptionCheck<void (*)(QV4::NoThrowEngine *, A, B, C)> { | - |
89 | enum { NeedsCheck = 0 }; | - |
90 | }; | - |
91 | } | - |
92 | | - |
93 | #define FOR_EACH_RUNTIME_METHOD(F) \ | - |
94 | /* call */ \ | - |
95 | F(ReturnedValue, callGlobalLookup, (ExecutionEngine *engine, uint index, Value *argv, int argc)) \ | - |
96 | F(ReturnedValue, callName, (ExecutionEngine *engine, int nameIndex, Value *argv, int argc)) \ | - |
97 | F(ReturnedValue, callProperty, (ExecutionEngine *engine, Value *base, int nameIndex, Value *argv, int argc)) \ | - |
98 | F(ReturnedValue, callPropertyLookup, (ExecutionEngine *engine, Value *base, uint index, Value *argv, int argc)) \ | - |
99 | F(ReturnedValue, callElement, (ExecutionEngine *engine, Value *base, const Value &index, Value *argv, int argc)) \ | - |
100 | F(ReturnedValue, callValue, (ExecutionEngine *engine, const Value &func, Value *argv, int argc)) \ | - |
101 | F(ReturnedValue, callPossiblyDirectEval, (ExecutionEngine *engine, Value *argv, int argc)) \ | - |
102 | F(ReturnedValue, callWithSpread, (ExecutionEngine *engine, const Value &func, const Value &thisObject, Value *argv, int argc)) \ | - |
103 | \ | - |
104 | /* construct */ \ | - |
105 | F(ReturnedValue, construct, (ExecutionEngine *engine, const Value &func, const Value &newTarget, Value *argv, int argc)) \ | - |
106 | F(ReturnedValue, constructWithSpread, (ExecutionEngine *engine, const Value &func, const Value &newTarget, Value *argv, int argc)) \ | - |
107 | \ | - |
108 | /* load & store */ \ | - |
109 | F(void, storeNameStrict, (ExecutionEngine *engine, int nameIndex, const Value &value)) \ | - |
110 | F(void, storeNameSloppy, (ExecutionEngine *engine, int nameIndex, const Value &value)) \ | - |
111 | F(void, storeProperty, (ExecutionEngine *engine, const Value &object, int nameIndex, const Value &value)) \ | - |
112 | F(void, storeElement, (ExecutionEngine *engine, const Value &object, const Value &index, const Value &value)) \ | - |
113 | F(ReturnedValue, loadProperty, (ExecutionEngine *engine, const Value &object, int nameIndex)) \ | - |
114 | F(ReturnedValue, loadName, (ExecutionEngine *engine, int nameIndex)) \ | - |
115 | F(ReturnedValue, loadElement, (ExecutionEngine *engine, const Value &object, const Value &index)) \ | - |
116 | F(ReturnedValue, loadSuperProperty, (ExecutionEngine *engine, const Value &property)) \ | - |
117 | F(void, storeSuperProperty, (ExecutionEngine *engine, const Value &property, const Value &value)) \ | - |
118 | \ | - |
119 | /* typeof */ \ | - |
120 | F(ReturnedValue, typeofValue, (ExecutionEngine *engine, const Value &val)) \ | - |
121 | F(ReturnedValue, typeofName, (ExecutionEngine *engine, int nameIndex)) \ | - |
122 | \ | - |
123 | /* delete */ \ | - |
124 | F(bool, deleteProperty, (ExecutionEngine *engine, const Value &base, const Value &index)) \ | - |
125 | F(bool, deleteName, (ExecutionEngine *engine, int nameIndex)) \ | - |
126 | \ | - |
127 | /* exceptions & scopes */ \ | - |
128 | F(void, throwException, (ExecutionEngine *engine, const Value &value)) \ | - |
129 | F(ReturnedValue, createWithContext, (ExecutionEngine *, Value *jsStackFrame)) \ | - |
130 | F(ReturnedValue, createCatchContext, (ExecutionContext *parent, int blockIndex, int exceptionVarNameIndex)) \ | - |
131 | F(ReturnedValue, createBlockContext, (ExecutionContext *parent, int index)) \ | - |
132 | F(ReturnedValue, createScriptContext, (ExecutionEngine *engine, int index)) \ | - |
133 | F(ReturnedValue, cloneBlockContext, (ExecutionContext *previous)) \ | - |
134 | F(ReturnedValue, popScriptContext, (ExecutionEngine *engine)) \ | - |
135 | \ | - |
136 | /* closures */ \ | - |
137 | F(ReturnedValue, closure, (ExecutionEngine *engine, int functionId)) \ | - |
138 | \ | - |
139 | /* function header */ \ | - |
140 | F(void, declareVar, (ExecutionEngine *engine, bool deletable, int nameIndex)) \ | - |
141 | F(ReturnedValue, createMappedArgumentsObject, (ExecutionEngine *engine)) \ | - |
142 | F(ReturnedValue, createUnmappedArgumentsObject, (ExecutionEngine *engine)) \ | - |
143 | F(ReturnedValue, createRestParameter, (ExecutionEngine *engine, int argIndex)) \ | - |
144 | \ | - |
145 | /* literals */ \ | - |
146 | F(ReturnedValue, arrayLiteral, (ExecutionEngine *engine, Value *values, uint length)) \ | - |
147 | F(ReturnedValue, objectLiteral, (ExecutionEngine *engine, int classId, int argc, const Value *args)) \ | - |
148 | F(ReturnedValue, createClass, (ExecutionEngine *engine, int classIndex, const Value &heritage, const Value *computedNames)) \ | - |
149 | \ | - |
150 | /* for-in, for-of and array destructuring */ \ | - |
151 | F(ReturnedValue, getIterator, (ExecutionEngine *engine, const Value &in, int iterator)) \ | - |
152 | F(ReturnedValue, iteratorNext, (ExecutionEngine *engine, const Value &iterator, Value *value)) \ | - |
153 | F(ReturnedValue, iteratorClose, (ExecutionEngine *engine, const Value &iterator, const Value &done)) \ | - |
154 | F(ReturnedValue, destructureRestElement, (ExecutionEngine *engine, const Value &iterator)) \ | - |
155 | \ | - |
156 | /* unary operators */ \ | - |
157 | F(ReturnedValue, uMinus, (const Value &value)) \ | - |
158 | \ | - |
159 | /* binary operators */ \ | - |
160 | F(ReturnedValue, instanceof, (ExecutionEngine *engine, const Value &left, const Value &right)) \ | - |
161 | F(ReturnedValue, in, (ExecutionEngine *engine, const Value &left, const Value &right)) \ | - |
162 | F(ReturnedValue, add, (ExecutionEngine *engine, const Value &left, const Value &right)) \ | - |
163 | F(ReturnedValue, sub, (const Value &left, const Value &right)) \ | - |
164 | F(ReturnedValue, mul, (const Value &left, const Value &right)) \ | - |
165 | F(ReturnedValue, div, (const Value &left, const Value &right)) \ | - |
166 | F(ReturnedValue, mod, (const Value &left, const Value &right)) \ | - |
167 | F(ReturnedValue, shl, (const Value &left, const Value &right)) \ | - |
168 | F(ReturnedValue, shr, (const Value &left, const Value &right)) \ | - |
169 | F(ReturnedValue, ushr, (const Value &left, const Value &right)) \ | - |
170 | F(ReturnedValue, greaterThan, (const Value &left, const Value &right)) \ | - |
171 | F(ReturnedValue, lessThan, (const Value &left, const Value &right)) \ | - |
172 | F(ReturnedValue, greaterEqual, (const Value &left, const Value &right)) \ | - |
173 | F(ReturnedValue, lessEqual, (const Value &left, const Value &right)) \ | - |
174 | F(ReturnedValue, equal, (const Value &left, const Value &right)) \ | - |
175 | F(ReturnedValue, notEqual, (const Value &left, const Value &right)) \ | - |
176 | F(ReturnedValue, strictEqual, (const Value &left, const Value &right)) \ | - |
177 | F(ReturnedValue, strictNotEqual, (const Value &left, const Value &right)) \ | - |
178 | \ | - |
179 | /* comparisons */ \ | - |
180 | F(Bool, compareGreaterThan, (const Value &l, const Value &r)) \ | - |
181 | F(Bool, compareLessThan, (const Value &l, const Value &r)) \ | - |
182 | F(Bool, compareGreaterEqual, (const Value &l, const Value &r)) \ | - |
183 | F(Bool, compareLessEqual, (const Value &l, const Value &r)) \ | - |
184 | F(Bool, compareEqual, (const Value &left, const Value &right)) \ | - |
185 | F(Bool, compareNotEqual, (const Value &left, const Value &right)) \ | - |
186 | F(Bool, compareStrictEqual, (const Value &left, const Value &right)) \ | - |
187 | F(Bool, compareStrictNotEqual, (const Value &left, const Value &right)) \ | - |
188 | \ | - |
189 | F(Bool, compareInstanceof, (ExecutionEngine *engine, const Value &left, const Value &right)) \ | - |
190 | F(Bool, compareIn, (ExecutionEngine *engine, const Value &left, const Value &right)) \ | - |
191 | \ | - |
192 | F(ReturnedValue, regexpLiteral, (ExecutionEngine *engine, int id)) \ | - |
193 | \ | - |
194 | /* qml */ \ | - |
195 | F(ReturnedValue, loadQmlContext, (NoThrowEngine *engine)) \ | - |
196 | F(ReturnedValue, loadQmlImportedScripts, (NoThrowEngine *engine)) \ | - |
197 | F(ReturnedValue, loadQmlScopeObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, bool captureRequired)) \ | - |
198 | F(ReturnedValue, loadQmlContextObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, bool captureRequired)) \ | - |
199 | F(ReturnedValue, loadQmlIdObject, (ExecutionEngine *engine, const Value &context, uint index)) \ | - |
200 | F(ReturnedValue, callQmlScopeObjectProperty, (ExecutionEngine *engine, Value *base, int propertyIndex, Value *argv, int argc)) \ | - |
201 | F(ReturnedValue, callQmlContextObjectProperty, (ExecutionEngine *engine, Value *base, int propertyIndex, Value *argv, int argc)) \ | - |
202 | \ | - |
203 | F(void, storeQmlScopeObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, const Value &value)) \ | - |
204 | F(void, storeQmlContextObjectProperty, (ExecutionEngine *engine, const Value &context, int propertyIndex, const Value &value)) \ | - |
205 | | - |
206 | struct Q_QML_PRIVATE_EXPORT Runtime { | - |
207 | Runtime(); | - |
208 | | - |
209 | typedef ReturnedValue (*UnaryOperation)(const Value &value); | - |
210 | typedef ReturnedValue (*BinaryOperation)(const Value &left, const Value &right); | - |
211 | typedef ReturnedValue (*BinaryOperationContext)(ExecutionEngine *engine, const Value &left, const Value &right); | - |
212 | | - |
213 | #define DEFINE_RUNTIME_METHOD_ENUM(returnvalue, name, args) name, | - |
214 | enum RuntimeMethods { | - |
215 | FOR_EACH_RUNTIME_METHOD(DEFINE_RUNTIME_METHOD_ENUM) | - |
216 | RuntimeMethodCount, | - |
217 | InvalidRuntimeMethod = RuntimeMethodCount | - |
218 | }; | - |
219 | #undef DEFINE_RUNTIME_METHOD_ENUM | - |
220 | | - |
221 | void *runtimeMethods[RuntimeMethodCount]; | - |
222 | | - |
223 | static uint runtimeMethodOffset(RuntimeMethods method) { return method*QT_POINTER_SIZE; } never executed: return method*8; | 0 |
224 | | - |
225 | #define RUNTIME_METHOD(returnvalue, name, args) \ | - |
226 | typedef returnvalue (*Method_##name)args; \ | - |
227 | enum { Method_##name##_NeedsExceptionCheck = ExceptionCheck<Method_##name>::NeedsCheck }; \ | - |
228 | static returnvalue method_##name args; | - |
229 | FOR_EACH_RUNTIME_METHOD(RUNTIME_METHOD) | - |
230 | #undef RUNTIME_METHOD | - |
231 | | - |
232 | }; | - |
233 | | - |
234 | static_assert(std::is_standard_layout<Runtime>::value, "Runtime needs to be standard layout in order for us to be able to use offsetof"); | - |
235 | static_assert(offsetof(Runtime, runtimeMethods) == 0, "JIT expects this to be the first member"); | - |
236 | static_assert(sizeof(Runtime::BinaryOperation) == sizeof(void*), "JIT expects a function pointer to fit into a regular pointer, for cross-compilation offset translation"); | - |
237 | | - |
238 | } | - |
239 | | - |
240 | QT_END_NAMESPACE | - |
241 | | - |
242 | #endif // QV4RUNTIMEAPI_P_H | - |
| | |