| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/qml/jsruntime/qv4stackframe_p.h |
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| 1 | /**************************************************************************** | - | ||||||
| 2 | ** | - | ||||||
| 3 | ** Copyright (C) 2018 The Qt Company Ltd. | - | ||||||
| 4 | ** Contact: https://www.qt.io/licensing/ | - | ||||||
| 5 | ** | - | ||||||
| 6 | ** This file is part of the QtQml module of the Qt Toolkit. | - | ||||||
| 7 | ** | - | ||||||
| 8 | ** $QT_BEGIN_LICENSE:LGPL$ | - | ||||||
| 9 | ** Commercial License Usage | - | ||||||
| 10 | ** Licensees holding valid commercial Qt licenses may use this file in | - | ||||||
| 11 | ** accordance with the commercial license agreement provided with the | - | ||||||
| 12 | ** Software or, alternatively, in accordance with the terms contained in | - | ||||||
| 13 | ** a written agreement between you and The Qt Company. For licensing terms | - | ||||||
| 14 | ** and conditions see https://www.qt.io/terms-conditions. For further | - | ||||||
| 15 | ** information use the contact form at https://www.qt.io/contact-us. | - | ||||||
| 16 | ** | - | ||||||
| 17 | ** GNU Lesser General Public License Usage | - | ||||||
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | - | ||||||
| 19 | ** General Public License version 3 as published by the Free Software | - | ||||||
| 20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the | - | ||||||
| 21 | ** packaging of this file. Please review the following information to | - | ||||||
| 22 | ** ensure the GNU Lesser General Public License version 3 requirements | - | ||||||
| 23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. | - | ||||||
| 24 | ** | - | ||||||
| 25 | ** GNU General Public License Usage | - | ||||||
| 26 | ** Alternatively, this file may be used under the terms of the GNU | - | ||||||
| 27 | ** General Public License version 2.0 or (at your option) the GNU General | - | ||||||
| 28 | ** Public license version 3 or any later version approved by the KDE Free | - | ||||||
| 29 | ** Qt Foundation. The licenses are as published by the Free Software | - | ||||||
| 30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 | - | ||||||
| 31 | ** included in the packaging of this file. Please review the following | - | ||||||
| 32 | ** information to ensure the GNU General Public License requirements will | - | ||||||
| 33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and | - | ||||||
| 34 | ** https://www.gnu.org/licenses/gpl-3.0.html. | - | ||||||
| 35 | ** | - | ||||||
| 36 | ** $QT_END_LICENSE$ | - | ||||||
| 37 | ** | - | ||||||
| 38 | ****************************************************************************/ | - | ||||||
| 39 | #ifndef QV4STACKFRAME_H | - | ||||||
| 40 | #define QV4STACKFRAME_H | - | ||||||
| 41 | - | |||||||
| 42 | #include <private/qv4context_p.h> | - | ||||||
| 43 | #include <private/qv4enginebase_p.h> | - | ||||||
| 44 | #ifndef V4_BOOTSTRAP | - | ||||||
| 45 | #include <private/qv4function_p.h> | - | ||||||
| 46 | #endif | - | ||||||
| 47 | - | |||||||
| 48 | QT_BEGIN_NAMESPACE | - | ||||||
| 49 | - | |||||||
| 50 | namespace QV4 { | - | ||||||
| 51 | - | |||||||
| 52 | struct CallData | - | ||||||
| 53 | { | - | ||||||
| 54 | enum Offsets { | - | ||||||
| 55 | Function = 0, | - | ||||||
| 56 | Context = 1, | - | ||||||
| 57 | Accumulator = 2, | - | ||||||
| 58 | This = 3, | - | ||||||
| 59 | NewTarget = 4, | - | ||||||
| 60 | Argc = 5 | - | ||||||
| 61 | }; | - | ||||||
| 62 | - | |||||||
| 63 | Value function; | - | ||||||
| 64 | Value context; | - | ||||||
| 65 | Value accumulator; | - | ||||||
| 66 | Value thisObject; | - | ||||||
| 67 | Value newTarget; | - | ||||||
| 68 | Value _argc; | - | ||||||
| 69 | - | |||||||
| 70 | int argc() const { | - | ||||||
| 71 | Q_ASSERT(_argc.isInteger()); | - | ||||||
| 72 | return _argc.int_32(); executed 2207750 times by 130 tests: return _argc.int_32();Executed by:
| 2207750 | ||||||
| 73 | } | - | ||||||
| 74 | - | |||||||
| 75 | void setArgc(int argc) { | - | ||||||
| 76 | Q_ASSERT(argc >= 0); | - | ||||||
| 77 | _argc.setInt_32(argc); | - | ||||||
| 78 | } executed 19862422 times by 135 tests: end of blockExecuted by:
| 19862422 | ||||||
| 79 | - | |||||||
| 80 | inline ReturnedValue argument(int i) const { | - | ||||||
| 81 | return i < argc() ? args[i].asReturnedValue() : Primitive::undefinedValue().asReturnedValue(); never executed: return i < argc() ? args[i].asReturnedValue() : Primitive::undefinedValue().asReturnedValue(); | 0 | ||||||
| 82 | } | - | ||||||
| 83 | - | |||||||
| 84 | Value args[1]; | - | ||||||
| 85 | - | |||||||
| 86 | static Q_DECL_CONSTEXPR int HeaderSize() { return offsetof(CallData, args) / sizeof(QV4::Value); } | - | ||||||
| 87 | }; | - | ||||||
| 88 | - | |||||||
| 89 | Q_STATIC_ASSERT(std::is_standard_layout<CallData>::value); | - | ||||||
| 90 | Q_STATIC_ASSERT(offsetof(CallData, thisObject) == CallData::This*sizeof(Value)); | - | ||||||
| 91 | Q_STATIC_ASSERT(offsetof(CallData, args) == 6*sizeof(Value)); | - | ||||||
| 92 | - | |||||||
| 93 | struct Q_QML_EXPORT CppStackFrame { | - | ||||||
| 94 | EngineBase *engine; | - | ||||||
| 95 | Value *savedStackTop; | - | ||||||
| 96 | CppStackFrame *parent; | - | ||||||
| 97 | Function *v4Function; | - | ||||||
| 98 | CallData *jsFrame; | - | ||||||
| 99 | const Value *originalArguments; | - | ||||||
| 100 | int originalArgumentsCount; | - | ||||||
| 101 | int instructionPointer; | - | ||||||
| 102 | const char *yield; | - | ||||||
| 103 | const char *unwindHandler; | - | ||||||
| 104 | const char *unwindLabel; | - | ||||||
| 105 | int unwindLevel; | - | ||||||
| 106 | - | |||||||
| 107 | void init(EngineBase *engine, Function *v4Function, const Value *argv, int argc) { | - | ||||||
| 108 | this->engine = engine; | - | ||||||
| 109 | - | |||||||
| 110 | this->v4Function = v4Function; | - | ||||||
| 111 | originalArguments = argv; | - | ||||||
| 112 | originalArgumentsCount = argc; | - | ||||||
| 113 | instructionPointer = 0; | - | ||||||
| 114 | yield = nullptr; | - | ||||||
| 115 | unwindHandler = nullptr; | - | ||||||
| 116 | unwindLabel = nullptr; | - | ||||||
| 117 | unwindLevel = 0; | - | ||||||
| 118 | } executed 17775220 times by 135 tests: end of blockExecuted by:
| 17775220 | ||||||
| 119 | - | |||||||
| 120 | void push() { | - | ||||||
| 121 | parent = engine->currentStackFrame; | - | ||||||
| 122 | engine->currentStackFrame = this; | - | ||||||
| 123 | savedStackTop = engine->jsStackTop; | - | ||||||
| 124 | } executed 17779491 times by 135 tests: end of blockExecuted by:
| 17779491 | ||||||
| 125 | - | |||||||
| 126 | void pop() { | - | ||||||
| 127 | engine->currentStackFrame = parent; | - | ||||||
| 128 | engine->jsStackTop = savedStackTop; | - | ||||||
| 129 | } executed 17723791 times by 135 tests: end of blockExecuted by:
| 17723791 | ||||||
| 130 | - | |||||||
| 131 | #ifndef V4_BOOTSTRAP | - | ||||||
| 132 | static uint requiredJSStackFrameSize(uint nRegisters) { | - | ||||||
| 133 | return CallData::HeaderSize() + nRegisters; executed 360 times by 1 test: return CallData::HeaderSize() + nRegisters;Executed by:
| 360 | ||||||
| 134 | } | - | ||||||
| 135 | static uint requiredJSStackFrameSize(Function *v4Function) { | - | ||||||
| 136 | return CallData::HeaderSize() + v4Function->compiledFunction->nRegisters; executed 17794237 times by 135 tests: return CallData::HeaderSize() + v4Function->compiledFunction->nRegisters;Executed by:
| 17794237 | ||||||
| 137 | } | - | ||||||
| 138 | uint requiredJSStackFrameSize() const { | - | ||||||
| 139 | return requiredJSStackFrameSize(v4Function); executed 17779960 times by 135 tests: return requiredJSStackFrameSize(v4Function);Executed by:
| 17779960 | ||||||
| 140 | } | - | ||||||
| 141 | void setupJSFrame(Value *stackSpace, const Value &function, const Heap::ExecutionContext *scope, | - | ||||||
| 142 | const Value &thisObject, const Value &newTarget = Primitive::undefinedValue()) { | - | ||||||
| 143 | setupJSFrame(stackSpace, function, scope, thisObject, newTarget, | - | ||||||
| 144 | v4Function->nFormals, v4Function->compiledFunction->nRegisters); | - | ||||||
| 145 | } executed 17766858 times by 135 tests: end of blockExecuted by:
| 17766858 | ||||||
| 146 | void setupJSFrame(Value *stackSpace, const Value &function, const Heap::ExecutionContext *scope, | - | ||||||
| 147 | const Value &thisObject, const Value &newTarget, uint nFormals, uint nRegisters) | - | ||||||
| 148 | { | - | ||||||
| 149 | jsFrame = reinterpret_cast<CallData *>(stackSpace); | - | ||||||
| 150 | jsFrame->function = function; | - | ||||||
| 151 | jsFrame->context = scope->asReturnedValue(); | - | ||||||
| 152 | jsFrame->accumulator = Encode::undefined(); | - | ||||||
| 153 | jsFrame->thisObject = thisObject; | - | ||||||
| 154 | jsFrame->newTarget = newTarget; | - | ||||||
| 155 | - | |||||||
| 156 | uint argc = uint(originalArgumentsCount); | - | ||||||
| 157 | if (argc > nFormals)
| 16554-17741876 | ||||||
| 158 | argc = nFormals; executed 16554 times by 12 tests: argc = nFormals;Executed by:
| 16554 | ||||||
| 159 | jsFrame->setArgc(argc); | - | ||||||
| 160 | - | |||||||
| 161 | memcpy(jsFrame->args, originalArguments, argc*sizeof(Value)); | - | ||||||
| 162 | const Value *end = jsFrame->args + nRegisters; | - | ||||||
| 163 | for (Value *v = jsFrame->args + argc; v < end; ++v)
| 17772939-200097203 | ||||||
| 164 | *v = Encode::undefined(); executed 200159901 times by 135 tests: *v = Encode::undefined();Executed by:
| 200159901 | ||||||
| 165 | } executed 17749088 times by 135 tests: end of blockExecuted by:
| 17749088 | ||||||
| 166 | #endif | - | ||||||
| 167 | - | |||||||
| 168 | QString source() const; | - | ||||||
| 169 | QString function() const; | - | ||||||
| 170 | inline QV4::ExecutionContext *context() const { | - | ||||||
| 171 | return static_cast<ExecutionContext *>(&jsFrame->context); executed 8691557 times by 29 tests: return static_cast<ExecutionContext *>(&jsFrame->context);Executed by:
| 8691557 | ||||||
| 172 | } | - | ||||||
| 173 | int lineNumber() const; | - | ||||||
| 174 | - | |||||||
| 175 | inline QV4::Heap::CallContext *callContext() const { | - | ||||||
| 176 | Heap::ExecutionContext *ctx = static_cast<ExecutionContext &>(jsFrame->context).d();\ | - | ||||||
| 177 | while (ctx->type != Heap::ExecutionContext::Type_CallContext)
| 0 | ||||||
| 178 | ctx = ctx->outer; never executed: ctx = ctx->outer; | 0 | ||||||
| 179 | return static_cast<Heap::CallContext *>(ctx); never executed: return static_cast<Heap::CallContext *>(ctx); | 0 | ||||||
| 180 | } | - | ||||||
| 181 | ReturnedValue thisObject() const; | - | ||||||
| 182 | }; | - | ||||||
| 183 | - | |||||||
| 184 | } | - | ||||||
| 185 | - | |||||||
| 186 | QT_END_NAMESPACE | - | ||||||
| 187 | - | |||||||
| 188 | #endif | - | ||||||
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