The QScriptContextInfo class provides additional information about a QScriptContext. More...
Public Types | |
| enum | FunctionType |
Public Methods | |
| QScriptContextInfo () | |
| QScriptContextInfo (const QScriptContext *context) | |
| QScriptContextInfo (const QScriptContextInfo &other) | |
| ~QScriptContextInfo () | |
| QString | fileName () const |
| int | functionEndLineNumber () const |
| int | functionMetaIndex () const |
| QString | functionName () const |
| QStringList | functionParameterNames () const |
| int | functionStartLineNumber () const |
| FunctionType | functionType () const |
| bool | isNull () const |
| int | lineNumber () const |
| bool | operator!= (const QScriptContextInfo &other) const |
| QScriptContextInfo & | operator= (const QScriptContextInfo &other) |
| bool | operator== (const QScriptContextInfo &other) const |
| qint64 | scriptId () const |
Detailed Description
The QScriptContextInfo class provides additional information about a QScriptContext. QScriptContextInfo is typically used for debugging purposes. It can provide information about the code being executed, such as the type of the called function, and the original source code location of the current statement.
If the called function is executing CsScript code, you can obtain the script location with the functions fileName() and lineNumber(). You can obtain the starting line number and ending line number of a CsScript function definition with functionStartLineNumber() and functionEndLineNumber(), respectively.
For CsScript functions, methods, and slots, you can call functionParameterNames() to get the names of the formal parameters of the function. For CopperSpice methods and property accessors, you can obtain the index of the underlying QMetaMethod or QMetaProperty by calling functionMetaIndex().
- See also
- QScriptContext, QScriptEngineAgent
Member Enumeration Documentation
This enum specifies the type of function being called.
| Constant | Value | Description |
|---|---|---|
QScriptContextInfo::ScriptFunction | 0 | The function is a CsScript function, i.e. it was defined through a call to QScriptEngine::evaluate(). |
QScriptContextInfo::QtFunction | 1 | The function is a CopperSpice function (a signal, slot or method). |
QScriptContextInfo::QtPropertyFunction | 2 | The function is a CopperSpice property getter or setter. |
QScriptContextInfo::NativeFunction | 3 | The function is a built-in CsScript function, or it was defined through a call to QScriptEngine::newFunction(). |
Constructor & Destructor Documentation
| QScriptContextInfo::QScriptContextInfo | ( | const QScriptContext * | context | ) |
Constructs a new QScriptContextInfo from the given context.
The relevant information is extracted from the context at construction time; i.e. if you continue script execution in the context, the new state of the context will not be reflected in a previously created QScriptContextInfo.
| QScriptContextInfo::QScriptContextInfo | ( | const QScriptContextInfo & | other | ) |
Constructs a new QScriptContextInfo from the other info.
| QScriptContextInfo::QScriptContextInfo | ( | ) |
Constructs a null QScriptContextInfo.
- See also
- isNull()
| QScriptContextInfo::~QScriptContextInfo | ( | ) |
Destroys the QScriptContextInfo.
Method Documentation
| QString QScriptContextInfo::fileName | ( | ) | const |
Returns the name of the file where the code being executed was defined, if available, otherwise returns an empty string.
For CsScript code, this function returns the fileName argument that was passed to QScriptEngine::evaluate().
- See also
- lineNumber(), functionName()
| int QScriptContextInfo::functionEndLineNumber | ( | ) | const |
Returns the line number where the definition of the called function ends, or -1 if the line number is not available.
The ending line number is only available if the functionType() is ScriptFunction.
- See also
- functionStartLineNumber()
| int QScriptContextInfo::functionMetaIndex | ( | ) | const |
Returns the meta index of the called function, or -1 if the meta index is not available.
The meta index is only available if the functionType() is QtFunction or QtPropertyFunction. For QtFunction, the meta index can be passed to QMetaObject::method() to obtain the corresponding method definition; for QtPropertyFunction, the meta index can be passed to QMetaObject::property() to obtain the corresponding property definition.
- See also
- QScriptContext::thisObject()
| QString QScriptContextInfo::functionName | ( | ) | const |
Returns the name of the called function, or an empty string if the name is not available.
For script functions of type QtPropertyFunction, this function always returns the name of the property; you can use QScriptContext::argumentCount() to differentiate between reads and writes.
- See also
- fileName(), functionType()
| QStringList QScriptContextInfo::functionParameterNames | ( | ) | const |
Returns the names of the formal parameters of the called function, or an empty QStringList if the parameter names are not available.
- See also
- QScriptContext::argument()
| int QScriptContextInfo::functionStartLineNumber | ( | ) | const |
Returns the line number where the definition of the called function starts, or -1 if the line number is not available.
The starting line number is only available if the functionType() is ScriptFunction.
- See also
- functionEndLineNumber(), fileName()
| FunctionType QScriptContextInfo::functionType | ( | ) | const |
Returns the type of the called function.
- See also
- functionName(), QScriptContext::callee()
| bool QScriptContextInfo::isNull | ( | ) | const |
Returns true if this QScriptContextInfo is null, i.e. does not contain any information.
| int QScriptContextInfo::lineNumber | ( | ) | const |
Returns the line number corresponding to the statement being executed, or -1 if the line number is not available. The line number is only available if CsScript code is being executed.
- See also
- fileName()
| bool QScriptContextInfo::operator!= | ( | const QScriptContextInfo & | other | ) | const |
Returns true if this QScriptContextInfo is not equal to the other info, otherwise returns false.
| QScriptContextInfo & QScriptContextInfo::operator= | ( | const QScriptContextInfo & | other | ) |
Copy assigns from other and returns a reference to this object.
| bool QScriptContextInfo::operator== | ( | const QScriptContextInfo & | other | ) | const |
Returns true if this QScriptContextInfo is equal to other, otherwise returns false.
| qint64 QScriptContextInfo::scriptId | ( | ) | const |
Returns the ID of the script where the code being executed was defined, or -1 if the ID is not available (i.e. a native function is being executed).
- See also
- QScriptEngineAgent::scriptLoad()
- Generated on Wed Sep 25 2024 09:00 by
1.7.0