qv4vme_moth.cpp File Reference

#include "qv4vme_moth_p.h"
#include <QtCore/qjsondocument.h>
#include <QtCore/qjsonobject.h>
#include <private/qv4alloca_p.h>
#include <private/qv4instr_moth_p.h>
#include <private/qv4value_p.h>
#include <private/qv4debugging_p.h>
#include <private/qv4function_p.h>
#include <private/qv4functionobject_p.h>
#include <private/qv4math_p.h>
#include <private/qv4scopedvalue_p.h>
#include <private/qv4lookup_p.h>
#include <private/qv4regexp_p.h>
#include <private/qv4regexpobject_p.h>
#include <private/qv4string_p.h>
#include <private/qv4profiling_p.h>
#include <private/qv4jscall_p.h>
#include <private/qv4generatorobject_p.h>
#include <private/qqmljavascriptexpression_p.h>
#include <private/qv4qmlcontext_p.h>
#include <QtQml/private/qv4runtime_p.h>
#include <iostream>
#include <qtqml_tracepoints_p.h>

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Macros
#define	MOTH_BEGIN_INSTR_COMMON(instr)
#define	MOTH_BEGIN_INSTR(instr)    MOTH_BEGIN_INSTR_COMMON(instr)
#define	MOTH_END_INSTR(instr)
#define	STACK_VALUE(temp)   stackValue(stack, temp, frame)
#define	CHECK_EXCEPTION
#define	STORE_IP()   frame->instructionPointer = int(code - function->codeData);
#define	STORE_ACC()   accumulator = acc;
#define	ACC   Value::fromReturnedValue(acc)
#define	VALUE_TO_INT(i, val)

Enumerations
enum	{ ShowWhenDeoptimiationHappens = 0 }

Functions
Q_QML_EXPORT void	qt_v4ResolvePendingBreakpointsHook ()
Q_QML_EXPORT void	qt_v4TriggeredBreakpointHook ()
Q_QML_EXPORT int	qt_v4DebuggerHook (const char *json)
static QV4::Value &	stackValue (QV4::Value *stack, size_t slot, const JSTypesStackFrame *frame)
static Heap::CallContext *	getScope (QV4::Value *stack, int level)
static const QV4::Value &	constant (Function *function, int index)
static bool	compareEqualInt (QV4::Value &accumulator, QV4::Value lhs, int rhs)

Macro Definition Documentation

ACC

#define ACC   Value::fromReturnedValue(acc)

Definition at line 379 of file qv4vme_moth.cpp.

CHECK_EXCEPTION

#define CHECK_EXCEPTION

Value:

    if (engine->hasException || engine->isInterrupted.loadRelaxed()) \
        goto handleUnwind

Definition at line 330 of file qv4vme_moth.cpp.

MOTH_BEGIN_INSTR

#define MOTH_BEGIN_INSTR

(

instr

)

MOTH_BEGIN_INSTR_COMMON(instr)

Definition at line 300 of file qv4vme_moth.cpp.

MOTH_BEGIN_INSTR_COMMON

#define MOTH_BEGIN_INSTR_COMMON

(

instr

)

Value:

    { \
        INSTR_##instr(MOTH_DECODE)

Definition at line 291 of file qv4vme_moth.cpp.

MOTH_END_INSTR

#define MOTH_END_INSTR

(

instr

)

Value:

        continue; \
    }

Definition at line 309 of file qv4vme_moth.cpp.

STACK_VALUE

#define STACK_VALUE

(

temp

)

stackValue(stack, temp, frame)

Definition at line 324 of file qv4vme_moth.cpp.

STORE_ACC

#define STORE_ACC

(

)

accumulator = acc;

Definition at line 378 of file qv4vme_moth.cpp.

STORE_IP

#define STORE_IP

(

)

frame->instructionPointer = int(code - function->codeData);

Definition at line 377 of file qv4vme_moth.cpp.

VALUE_TO_INT

#define VALUE_TO_INT	(		i,
			val
	)

Value:

    int i; \
    do { \
        if (Q_LIKELY(val.integerCompatible())) { \
            i = val.int_32(); \
        } else { \
            double d; \
            if (val.isDouble()) \
                d = val.doubleValue(); \
            else { \
                STORE_ACC(); \
                d = val.toNumberImpl(); \
                CHECK_EXCEPTION; \
            } \
            i = QJSNumberCoercion::toInteger(d); \
        } \
    } while (false)

Definition at line 380 of file qv4vme_moth.cpp.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
ShowWhenDeoptimiationHappens

Definition at line 41 of file qv4vme_moth.cpp.

Function Documentation

compareEqualInt()

static bool compareEqualInt ( QV4::Value &  accumulator, QV4::Value  lhs, int  rhs  )

static

Definition at line 350 of file qv4vme_moth.cpp.

References QV4::StaticValue::doubleValue(), QV4::Value::fromReturnedValue(), QV4::StaticValue::int_32(), QV4::StaticValue::isManagedOrUndefined(), QV4::Value::isString(), QV4::StaticValue::isUndefined(), QV4::RuntimeHelpers::objectDefaultValue(), QV4::PREFERREDTYPE_HINT, QV4::StaticValue::QT_Bool, QV4::StaticValue::QT_Empty, QV4::StaticValue::QT_Int, QV4::StaticValue::QT_Null, QV4::StaticValue::quickType(), and QV4::RuntimeHelpers::stringToNumber().

Referenced by QV4::Moth::VME::interpret().

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constant()

static const QV4::Value & constant ( Function *  function, int  index  )

inlinestatic

Definition at line 345 of file qv4vme_moth.cpp.

References function.

Referenced by QV4::Compiler::Codegen::Reference::asRValue(), QV4::Compiler::Codegen::RValue::constantValue(), QV4::Compiler::Codegen::Reference::fromConst(), QV4::Moth::VME::interpret(), QV4::Compiler::Codegen::RValue::loadInAccumulator(), QV4::Compiler::Codegen::Reference::loadInAccumulator(), QV4::Compiler::Codegen::Reference::operator==(), QV4::Compiler::Codegen::Reference::storeConstOnStack(), QV4::Compiler::Codegen::Reference::storeConstOnStack(), and QV4::Compiler::Codegen::RValue::storeOnStack().

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getScope()

static Heap::CallContext * getScope ( QV4::Value *  stack, int  level  )

inlinestatic

Definition at line 334 of file qv4vme_moth.cpp.

References QV4::CallData::Context, d, and Q_ASSERT.

Referenced by QV4::Moth::VME::interpret().

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qt_v4DebuggerHook()

Q_QML_EXPORT int qt_v4DebuggerHook

(

const char *

json

)

Since

5.5

The main entry point into "Native Mixed" Debugging.

Commands are passed as UTF-8 encoded JSON data. The data has two compulsory fields: \list

• version: Version of the protocol (currently 1)
• command: Name of the command \endlist

Depending on command, more fields can be present.

Error is indicated by negative return values, success by non-negative return values.

protocolVersion: Returns version of implemented protocol.

insertBreakpoint: Sets a breakpoint on a given file and line. \list

• fullName: Name of the QML/JS file
• lineNumber: Line number in the file
• condition: Breakpoint condition \endlist Returns a unique positive number as handle.

removeBreakpoint: Removes a breakpoint from a given file and line. \list

• fullName: Name of the QML/JS file
• lineNumber: Line number in the file
• condition: Breakpoint condition \endlist Returns zero on success, a negative number on failure.

prepareStep: Puts the interpreter in stepping mode. Returns zero.

qt_v4ResolvePendingBreakpointsHook()

Q_QML_EXPORT void qt_v4ResolvePendingBreakpointsHook

(

)

Since

5.5

This function is called uncondionally from VME::run().

An attached debugger can set a breakpoint here to intercept calls to VME::run().

Definition at line 56 of file qv4vme_moth.cpp.

Referenced by QV4::Moth::VME::exec(), and QV4::Moth::VME::exec().

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qt_v4TriggeredBreakpointHook()

Q_QML_EXPORT void qt_v4TriggeredBreakpointHook

(

)

Since

5.5

This function is called when a QML interpreter breakpoint is hit.

An attached debugger can set a breakpoint here.

Definition at line 68 of file qv4vme_moth.cpp.

stackValue()

static QV4::Value & stackValue ( QV4::Value *  stack, size_t  slot, const JSTypesStackFrame *  frame  )

inlinestatic

Definition at line 314 of file qv4vme_moth.cpp.

References frame, QV4::CallData::HeaderSize(), Q_ASSERT, and Q_UNUSED.

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