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Diffstat (limited to 'src/qmlcompiler/qqmljstypepropagator_p.h')
| -rw-r--r-- | src/qmlcompiler/qqmljstypepropagator_p.h | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/src/qmlcompiler/qqmljstypepropagator_p.h b/src/qmlcompiler/qqmljstypepropagator_p.h new file mode 100644 index 0000000000..c9bbeb27cc --- /dev/null +++ b/src/qmlcompiler/qqmljstypepropagator_p.h @@ -0,0 +1,274 @@ +// Copyright (C) 2021 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 + +#ifndef QQMLJSTYPEPROPAGATOR_P_H +#define QQMLJSTYPEPROPAGATOR_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#include <private/qqmljsast_p.h> +#include <private/qqmljsscope_p.h> +#include <private/qqmljscompilepass_p.h> + +QT_BEGIN_NAMESPACE + +namespace QQmlSA { +class PassManager; +}; + +struct Q_QMLCOMPILER_EXPORT QQmlJSTypePropagator : public QQmlJSCompilePass +{ + QQmlJSTypePropagator(const QV4::Compiler::JSUnitGenerator *unitGenerator, + const QQmlJSTypeResolver *typeResolver, QQmlJSLogger *logger, + BasicBlocks basicBlocks = {}, InstructionAnnotations annotations = {}, + QQmlSA::PassManager *passManager = nullptr); + + BlocksAndAnnotations run(const Function *m_function, QQmlJS::DiagnosticMessage *error); + + void generate_Ret() override; + void generate_Debug() override; + void generate_LoadConst(int index) override; + void generate_LoadZero() override; + void generate_LoadTrue() override; + void generate_LoadFalse() override; + void generate_LoadNull() override; + void generate_LoadUndefined() override; + void generate_LoadInt(int value) override; + void generate_MoveConst(int constIndex, int destTemp) override; + void generate_LoadReg(int reg) override; + void generate_StoreReg(int reg) override; + void generate_MoveReg(int srcReg, int destReg) override; + void generate_LoadImport(int index) override; + void generate_LoadLocal(int index) override; + void generate_StoreLocal(int index) override; + void generate_LoadScopedLocal(int scope, int index) override; + void generate_StoreScopedLocal(int scope, int index) override; + void generate_LoadRuntimeString(int stringId) override; + void generate_MoveRegExp(int regExpId, int destReg) override; + void generate_LoadClosure(int value) override; + void generate_LoadName(int nameIndex) override; + void generate_LoadGlobalLookup(int index) override; + void generate_LoadQmlContextPropertyLookup(int index) override; + void generate_StoreNameCommon(int nameIndex); + void generate_StoreNameSloppy(int nameIndex) override; + void generate_StoreNameStrict(int name) override; + void generate_LoadElement(int base) override; + void generate_StoreElement(int base, int index) override; + void generate_LoadProperty(int nameIndex) override; + void generate_LoadOptionalProperty(int name, int offset) override; + void generate_GetLookup(int index) override; + void generate_GetOptionalLookup(int index, int offset) override; + void generate_StoreProperty(int name, int base) override; + void generate_SetLookup(int index, int base) override; + void generate_LoadSuperProperty(int property) override; + void generate_StoreSuperProperty(int property) override; + void generate_Yield() override; + void generate_YieldStar() override; + void generate_Resume(int) override; + + void generate_CallValue(int name, int argc, int argv) override; + void generate_CallWithReceiver(int name, int thisObject, int argc, int argv) override; + void generate_CallProperty(int name, int base, int argc, int argv) override; + void generate_CallPropertyLookup(int lookupIndex, int base, int argc, int argv) override; + void generate_CallName(int name, int argc, int argv) override; + void generate_CallPossiblyDirectEval(int argc, int argv) override; + void generate_CallGlobalLookup(int index, int argc, int argv) override; + void generate_CallQmlContextPropertyLookup(int index, int argc, int argv) override; + void generate_CallWithSpread(int func, int thisObject, int argc, int argv) override; + void generate_TailCall(int func, int thisObject, int argc, int argv) override; + void generate_Construct(int func, int argc, int argv) override; + void generate_ConstructWithSpread(int func, int argc, int argv) override; + void generate_SetUnwindHandler(int offset) override; + void generate_UnwindDispatch() override; + void generate_UnwindToLabel(int level, int offset) override; + void generate_DeadTemporalZoneCheck(int name) override; + void generate_ThrowException() override; + void generate_GetException() override; + void generate_SetException() override; + void generate_CreateCallContext() override; + void generate_PushCatchContext(int index, int name) override; + void generate_PushWithContext() override; + void generate_PushBlockContext(int index) override; + void generate_CloneBlockContext() override; + void generate_PushScriptContext(int index) override; + void generate_PopScriptContext() override; + void generate_PopContext() override; + void generate_GetIterator(int iterator) override; + void generate_IteratorNext(int value, int offset) override; + void generate_IteratorNextForYieldStar(int iterator, int object, int offset) override; + void generate_IteratorClose() override; + void generate_DestructureRestElement() override; + void generate_DeleteProperty(int base, int index) override; + void generate_DeleteName(int name) override; + void generate_TypeofName(int name) override; + void generate_TypeofValue() override; + void generate_DeclareVar(int varName, int isDeletable) override; + void generate_DefineArray(int argc, int args) override; + void generate_DefineObjectLiteral(int internalClassId, int argc, int args) override; + void generate_CreateClass(int classIndex, int heritage, int computedNames) override; + void generate_CreateMappedArgumentsObject() override; + void generate_CreateUnmappedArgumentsObject() override; + void generate_CreateRestParameter(int argIndex) override; + void generate_ConvertThisToObject() override; + void generate_LoadSuperConstructor() override; + void generate_ToObject() override; + void generate_Jump(int offset) override; + void generate_JumpTrue(int offset) override; + void generate_JumpFalse(int offset) override; + void generate_JumpNoException(int offset) override; + void generate_JumpNotUndefined(int offset) override; + void generate_CheckException() override; + void generate_CmpEqNull() override; + void generate_CmpNeNull() override; + void generate_CmpEqInt(int lhsConst) override; + void generate_CmpNeInt(int lhs) override; + void generate_CmpEq(int lhs) override; + void generate_CmpNe(int lhs) override; + void generate_CmpGt(int lhs) override; + void generate_CmpGe(int lhs) override; + void generate_CmpLt(int lhs) override; + void generate_CmpLe(int lhs) override; + void generate_CmpStrictEqual(int lhs) override; + void generate_CmpStrictNotEqual(int lhs) override; + void generate_CmpIn(int lhs) override; + void generate_CmpInstanceOf(int lhs) override; + void generate_As(int lhs) override; + void generate_UNot() override; + void generate_UPlus() override; + void generate_UMinus() override; + void generate_UCompl() override; + void generate_Increment() override; + void generate_Decrement() override; + void generate_Add(int lhs) override; + void generate_BitAnd(int lhs) override; + void generate_BitOr(int lhs) override; + void generate_BitXor(int lhs) override; + void generate_UShr(int lhs) override; + void generate_Shr(int lhs) override; + void generate_Shl(int lhs) override; + void generate_BitAndConst(int rhsConst) override; + void generate_BitOrConst(int rhsConst) override; + void generate_BitXorConst(int rhsConst) override; + void generate_UShrConst(int rhsConst) override; + void generate_ShrConst(int rhs) override; + void generate_ShlConst(int rhs) override; + void generate_Exp(int lhs) override; + void generate_Mul(int lhs) override; + void generate_Div(int lhs) override; + void generate_Mod(int lhs) override; + void generate_Sub(int lhs) override; + void generate_InitializeBlockDeadTemporalZone(int firstReg, int count) override; + void generate_ThrowOnNullOrUndefined() override; + void generate_GetTemplateObject(int index) override; + + bool checkForEnumProblems(const QQmlJSRegisterContent &base, const QString &propertyName); + + Verdict startInstruction(QV4::Moth::Instr::Type instr) override; + void endInstruction(QV4::Moth::Instr::Type instr) override; + +private: + struct ExpectedRegisterState + { + int originatingOffset = 0; + VirtualRegisters registers; + }; + + struct PassState : QQmlJSCompilePass::State + { + InstructionAnnotations annotations; + QSet<int> jumpTargets; + bool skipInstructionsUntilNextJumpTarget = false; + bool needsMorePasses = false; + }; + + void handleUnqualifiedAccess(const QString &name, bool isMethod) const; + void checkDeprecated(QQmlJSScope::ConstPtr scope, const QString &name, bool isMethod) const; + bool isCallingProperty(QQmlJSScope::ConstPtr scope, const QString &name) const; + + enum PropertyResolution { + PropertyMissing, + PropertyTypeUnresolved, + PropertyFullyResolved + }; + + PropertyResolution propertyResolution(QQmlJSScope::ConstPtr scope, const QString &type) const; + QQmlJS::SourceLocation getCurrentSourceLocation() const; + QQmlJS::SourceLocation getCurrentBindingSourceLocation() const; + + void checkConversion(const QQmlJSRegisterContent &from, const QQmlJSRegisterContent &to); + void generateUnaryArithmeticOperation(QQmlJSTypeResolver::UnaryOperator op); + + QQmlJSRegisterContent propagateBinaryOperation(QSOperator::Op op, int lhs); + void generateBinaryArithmeticOperation(QSOperator::Op op, int lhs); + void generateBinaryConstArithmeticOperation(QSOperator::Op op); + + void propagateCall( + const QList<QQmlJSMetaMethod> &methods, int argc, int argv, + const QQmlJSScope::ConstPtr &scope); + bool propagateTranslationMethod(const QList<QQmlJSMetaMethod> &methods, int argc, int argv); + void propagateStringArgCall(int argv); + bool propagateArrayMethod(const QString &name, int argc, int argv, const QQmlJSRegisterContent &valueType); + void propagatePropertyLookup( + const QString &name, int lookupIndex = QQmlJSRegisterContent::InvalidLookupIndex); + void propagateScopeLookupCall(const QString &functionName, int argc, int argv); + void saveRegisterStateForJump(int offset); + bool canConvertFromTo(const QQmlJSRegisterContent &from, const QQmlJSRegisterContent &to); + + QString registerName(int registerIndex) const; + + QQmlJSRegisterContent checkedInputRegister(int reg); + QQmlJSMetaMethod bestMatchForCall(const QList<QQmlJSMetaMethod> &methods, int argc, int argv, + QStringList *errors); + + void setAccumulator(const QQmlJSRegisterContent &content); + void setRegister(int index, const QQmlJSRegisterContent &content); + void mergeRegister(int index, const QQmlJSRegisterContent &a, const QQmlJSRegisterContent &b); + + void addReadRegister(int index, const QQmlJSRegisterContent &convertTo); + void addReadAccumulator(const QQmlJSRegisterContent &convertTo) + { + addReadRegister(Accumulator, convertTo); + } + + void recordEqualsNullType(); + void recordEqualsIntType(); + void recordEqualsType(int lhs); + void recordCompareType(int lhs); + + // helper functions to deal with special cases in generate_ methods + void generate_CallProperty_SCMath(int base, int arcg, int argv); + void generate_CallProperty_SCconsole(int base, int argc, int argv); + void generate_Construct_SCDate(int argc, int argv); + void generate_Construct_SCArray(int argc, int argv); + + // helper functions to perform QQmlSA checks + void generate_ret_SAcheck(); + void generate_LoadQmlContextPropertyLookup_SAcheck(const QString &name); + void generate_StoreNameCommon_SAcheck(const QQmlJSRegisterContent &in, const QString &name); + void propagatePropertyLookup_SAcheck(const QString &propertyName); + void generate_StoreProperty_SAcheck(const QString propertyName, const QQmlJSRegisterContent &callBase); + void generate_callProperty_SAcheck(const QString propertyName, const QQmlJSScope::ConstPtr &baseType); + + + QQmlJSRegisterContent m_returnType; + QQmlSA::PassManager *m_passManager = nullptr; + QQmlJSScope::ConstPtr m_attachedContext; + + // Not part of the state, as the back jumps are the reason for running multiple passes + QMultiHash<int, ExpectedRegisterState> m_jumpOriginRegisterStateByTargetInstructionOffset; + + InstructionAnnotations m_prevStateAnnotations; + PassState m_state; +}; + +QT_END_NAMESPACE + +#endif // QQMLJSTYPEPROPAGATOR_P_H |