mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-26 05:02:31 -06:00
586 lines
26 KiB
Python
586 lines
26 KiB
Python
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import FFIConstants
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import FFITypes
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import FFIOverload
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import string
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from direct.showbase.PythonUtil import *
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augmentedAssignments = ['__iadd__', '__isub__', '__imul__', '__idiv__',
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'__ior__', '__iand__', '__ixor__',
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'__ilshift__', '__irshift__']
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class FunctionSpecification:
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def __init__(self):
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self.name = ''
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self.typeDescriptor = None
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self.index = 0
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self.overloaded = 0
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# Is this function a constructor
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self.constructor = 0
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def isConstructor(self):
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return self.constructor
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def isStatic(self):
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for arg in self.typeDescriptor.argumentTypes:
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if arg.isThis:
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return 0
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# No args were this pointers, must be static
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return 1
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def outputTypeChecking(self, methodClass, args, file, nesting):
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"""
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Output an assert statement to check the type of each arg in this method
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This can be turned off with a command line parameter in generatePythonCode
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It is valid to pass in None for methodClass if you are not in any methodClass
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"""
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if FFIConstants.wantTypeChecking:
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for i in range(len(args)):
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methodArgSpec = args[i]
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typeDesc = methodArgSpec.typeDescriptor.recursiveTypeDescriptor()
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typeName = FFIOverload.getTypeName(methodClass, typeDesc)
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# We only do type checking on class types. C++ can do
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# type checking on the primitive types, and will do a
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# better job anyway.
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if typeDesc.__class__ == FFITypes.ClassTypeDescriptor:
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# Get the real return type (not derived)
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if ((not typeDesc.isNested) and
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# Do not put our own module in the import list
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(methodClass != typeDesc)):
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indent(file, nesting, 'import ' + typeDesc.foreignTypeName + '\n')
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indent(file, nesting, 'if not isinstance(' +
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methodArgSpec.name + ', ' + typeName + '):\n')
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indent(file, nesting + 1,
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'raise TypeError, "Invalid argument %s, expected <%s>"\n' % (i, typeDesc.foreignTypeName))
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def outputCFunctionComment(self, file, nesting):
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"""
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Output a docstring to the file describing the C++ call with type info
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Also output the C++ comment from interrogate.
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"""
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if FFIConstants.wantComments:
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indent(file, nesting, '"""\n')
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# Output the function prototype
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if self.typeDescriptor.prototype:
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indent(file, nesting, self.typeDescriptor.prototype + '\n')
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# Output the function comment
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if self.typeDescriptor.comment:
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# To insert tabs into the comment, replace all newlines with a newline+tabs
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comment = string.replace(self.typeDescriptor.comment,
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'\n', ('\n' + (' ' * nesting)))
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indent(file, nesting, comment)
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indent(file, 0, '\n')
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indent(file, nesting, '"""\n')
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def getFinalName(self):
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"""
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Return the name of the function given that it might be overloaded
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If it is overloaded, prepend "overloaded", then append the types of
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each argument to make it unique.
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So "getChild(int)" becomes "overloaded_getChild_int(int)"
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"""
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if self.overloaded:
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name = 'private__overloaded_' + self.name
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for methodArgSpec in self.typeDescriptor.argumentTypes:
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name = name + '_' + methodArgSpec.typeDescriptor.foreignTypeName
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return name
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else:
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return self.name
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def outputOverloadedCall(self, file, classTypeDesc, numArgs):
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"""
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Write the function call to call this overloaded method
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For example:
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self.overloaded_setPos_ptrNodePath_float_float_float(*_args)
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If it is a class (static) method, call the class method
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Class.overloaded_setPos_ptrNodePath_float_float_float(*_args)
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Constructors are not treated as static. They are special because
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they are not really constructors, they are instance methods that fill
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in the this pointer.
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These do not get indented because they are not the beginning of the line
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If classTypeDesc is None, then this is a global function and should
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output code as such
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"""
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if classTypeDesc:
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if (self.isStatic() and not self.isConstructor()):
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if numArgs:
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indent(file, 0, classTypeDesc.foreignTypeName + '.' + self.getFinalName() + '(*_args)\n')
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else:
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indent(file, 0, classTypeDesc.foreignTypeName + '.' + self.getFinalName() + '()\n')
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else:
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if numArgs:
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indent(file, 0, 'self.' + self.getFinalName() + '(*_args)\n')
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else:
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indent(file, 0, 'self.' + self.getFinalName() + '()\n')
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else:
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if numArgs:
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indent(file, 0, self.getFinalName() + '(*_args)\n')
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else:
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indent(file, 0, self.getFinalName() + '()\n')
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class GlobalFunctionSpecification(FunctionSpecification):
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def __init__(self):
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FunctionSpecification.__init__(self)
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# Use generateCode when creating a global (non-class) function
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def generateGlobalCode(self, file):
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self.outputHeader(file)
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self.outputBody(file)
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self.outputFooter(file)
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# Use generateCode when creating a global (non-class) function
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def generateGlobalDowncastCode(self, file):
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self.outputHeader(file)
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self.outputBody(file, 0, 0) # no downcast, no type checking
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self.outputFooter(file)
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# Use generateMethodCode when creating a global->class function
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def generateMethodCode(self, methodClass, file, nesting):
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self.outputMethodHeader(methodClass, file, nesting)
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self.outputMethodBody(methodClass, file, nesting)
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self.outputMethodFooter(methodClass, file, nesting)
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##################################################
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## Global Function Code Generation
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##################################################
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def outputHeader(self, file):
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argTypes = self.typeDescriptor.argumentTypes
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indent(file, 0, 'def ' + self.getFinalName() + '(')
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for i in range(len(argTypes)):
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file.write(argTypes[i].name)
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if (i < (len(argTypes)-1)):
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file.write(', ')
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file.write('):\n')
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def outputBody(self, file, needsDowncast=1, typeChecking=1):
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# The method body will look something like
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# returnValue = PandaGlobal.method(arg)
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# returnObject = NodePath()
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# returnObject.this = returnValue
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# returnObject.userManagesMemory = 1 (optional)
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# return returnObject
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self.outputCFunctionComment(file, 1)
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argTypes = self.typeDescriptor.argumentTypes
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# The global downcast functions do not need type checking, and
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# in fact have a problem where they assert you are downcasting
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# from the immediate superclass when in fact you may be downcasting
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# from a class way up the chain as long as their is single
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# inheritance up to it
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if typeChecking:
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self.outputTypeChecking(None, argTypes, file, 1)
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indent(file, 1, 'returnValue = ' + self.typeDescriptor.moduleName
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+ '.' + self.typeDescriptor.wrapperName + '(')
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for i in range(len(argTypes)):
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file.write(argTypes[i].passName())
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if (i < (len(argTypes)-1)):
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file.write(', ')
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file.write(')\n')
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#indent(file, 1, 'if returnValue is None:\n')
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#indent(file, 2, 'return None\n')
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returnType = self.typeDescriptor.returnType.recursiveTypeDescriptor()
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returnType.generateReturnValueWrapper(None, file,
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self.typeDescriptor.userManagesMemory,
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needsDowncast, 1)
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def outputFooter(self, file):
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indent(file, 0, '\n')
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##################################################
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## Class Method Code Generation
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##################################################
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def outputMethodHeader(self, methodClass, file, nesting):
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argTypes = self.typeDescriptor.argumentTypes
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indent(file, nesting, 'def ' + self.getFinalName() + '(')
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for i in range(len(argTypes)):
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# Instead of the first argument, put self
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if (i == 0):
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file.write('self')
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else:
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file.write(argTypes[i].name)
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if (i < (len(argTypes)-1)):
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file.write(', ')
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file.write('):\n')
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def outputMethodBody(self, methodClass, file, nesting):
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# The method body will look something like
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# returnValue = PandaGlobal.method(self.this, arg)
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# returnValue.userManagesMemory = 1 (optional)
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# return returnValue
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self.outputCFunctionComment(file, nesting+2)
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argTypes = self.typeDescriptor.argumentTypes
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self.outputTypeChecking(methodClass, argTypes[1:], file, nesting+2)
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indent(file, nesting+2, 'returnValue = ' + self.typeDescriptor.moduleName
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+ '.' + self.typeDescriptor.wrapperName + '(')
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for i in range(len(argTypes)):
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# Instead of the first argument, put self.this
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if (i == 0):
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file.write('self.this')
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else:
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file.write(argTypes[i].passName())
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if (i < (len(argTypes)-1)):
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file.write(', ')
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file.write(')\n')
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indent(file, 1, 'if returnValue is None:\n')
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indent(file, 2, 'return None\n')
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returnType = self.typeDescriptor.returnType.recursiveTypeDescriptor()
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returnType.generateReturnValueWrapper(methodClass, file,
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self.typeDescriptor.userManagesMemory,
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1, nesting+2)
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def outputMethodFooter(self, methodClass, file, nesting):
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indent(file, nesting+1, '\n')
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class MethodSpecification(FunctionSpecification):
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def __init__(self):
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FunctionSpecification.__init__(self)
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def generateConstructorCode(self, methodClass, file, nesting):
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self.outputConstructorHeader(methodClass, file, nesting)
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self.outputConstructorBody(methodClass, file, nesting)
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self.outputConstructorFooter(methodClass, file, nesting)
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def generateDestructorCode(self, methodClass, file, nesting):
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self.outputDestructorHeader(methodClass, file, nesting)
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self.outputDestructorBody(methodClass, file, nesting)
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self.outputDestructorFooter(methodClass, file, nesting)
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def generateMethodCode(self, methodClass, file, nesting):
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self.outputMethodHeader(methodClass, file, nesting)
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self.outputMethodBody(methodClass, file, nesting)
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self.outputMethodFooter(methodClass, file, nesting)
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def generateStaticCode(self, methodClass, file, nesting):
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self.outputStaticHeader(methodClass, file, nesting)
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self.outputStaticBody(methodClass, file, nesting)
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self.outputStaticFooter(methodClass, file, nesting)
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def generateInheritedMethodCode(self, methodClass, parentList, file, nesting, needsDowncast):
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self.outputInheritedMethodHeader(methodClass, parentList, file, nesting, needsDowncast)
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self.outputInheritedMethodBody(methodClass, parentList, file, nesting, needsDowncast)
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self.outputInheritedMethodFooter(methodClass, parentList, file, nesting, needsDowncast)
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def generateUpcastMethodCode(self, methodClass, file, nesting):
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# The upcast method code is just like regular code, but the
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# return value wrapper does not have downcasting instructions
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self.outputMethodHeader(methodClass, file, nesting)
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self.outputMethodBody(methodClass, file, nesting, 0) # no downcast
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self.outputMethodFooter(methodClass, file, nesting)
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##################################################
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## Constructor Code Generation
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##################################################
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def outputConstructorHeader(self, methodClass, file, nesting):
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argTypes = self.typeDescriptor.argumentTypes
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thislessArgTypes = self.typeDescriptor.thislessArgTypes()
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indent(file, nesting+1, 'def ' + self.getFinalName() + '(self')
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if (len(thislessArgTypes) > 0):
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file.write(', ')
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for i in range(len(thislessArgTypes)):
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file.write(thislessArgTypes[i].name)
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if (i < (len(thislessArgTypes)-1)):
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file.write(', ')
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file.write('):\n')
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self.outputCFunctionComment(file, nesting+2)
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def outputConstructorBody(self, methodClass, file, nesting):
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# The method body will look something like
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# self.this = panda.Class_constructor(arg)
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# self.userManagesMemory = 1 (optional)
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argTypes = self.typeDescriptor.argumentTypes
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thislessArgTypes = self.typeDescriptor.thislessArgTypes()
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self.outputTypeChecking(methodClass, thislessArgTypes, file, nesting+2)
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indent(file, nesting+2, 'self.this = ' + self.typeDescriptor.moduleName + '.'
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+ self.typeDescriptor.wrapperName + '(')
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# Do not pass self into the constructor
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for i in range(len(thislessArgTypes)):
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file.write(thislessArgTypes[i].passName())
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if (i < (len(thislessArgTypes)-1)):
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file.write(', ')
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file.write(')\n')
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indent(file, nesting+2, 'assert self.this != 0\n')
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if self.typeDescriptor.userManagesMemory:
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indent(file, nesting+2, 'self.userManagesMemory = 1\n')
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def outputConstructorFooter(self, methodClass, file, nesting):
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indent(file, nesting+1, '\n')
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##################################################
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## Destructor Code Generation
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##################################################
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def outputDestructorHeader(self, methodClass, file, nesting):
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argTypes = self.typeDescriptor.argumentTypes
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thislessArgTypes = self.typeDescriptor.thislessArgTypes()
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indent(file, nesting+1, 'def ' + self.getFinalName() + '(self')
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if (len(thislessArgTypes) > 0):
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file.write(', ')
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for i in range(len(thislessArgTypes)):
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file.write(thislessArgTypes[i].name)
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if (i < (len(thislessArgTypes)-1)):
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file.write(', ')
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file.write('):\n')
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self.outputCFunctionComment(file, nesting+2)
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def outputDestructorBody(self, methodClass, file, nesting):
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# The method body will look something like
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# panda.Class_destructor(self.this)
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functionName = (self.typeDescriptor.moduleName + '.'
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+ self.typeDescriptor.wrapperName)
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# Make sure the module and function have not been deleted first
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# This only happens during shutdown
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indent(file, nesting+2, 'if (' + self.typeDescriptor.moduleName + ' and ' +
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functionName + '):\n')
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indent(file, nesting+3, functionName + '(self.this)\n')
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def outputDestructorFooter(self, methodClass, file, nesting):
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indent(file, nesting+1, '\n')
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##################################################
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## Method Code Generation
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##################################################
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def outputMethodHeader(self, methodClass, file, nesting):
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argTypes = self.typeDescriptor.argumentTypes
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thislessArgTypes = self.typeDescriptor.thislessArgTypes()
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indent(file, nesting, 'def ' + self.getFinalName() + '(self')
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if (len(thislessArgTypes) > 0):
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file.write(', ')
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for i in range(len(thislessArgTypes)):
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file.write(thislessArgTypes[i].name)
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if (i < (len(thislessArgTypes)-1)):
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file.write(', ')
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file.write('):\n')
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def outputMethodBody(self, methodClass, file, nesting, needsDowncast=1):
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# The method body will look something like
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# returnValue = panda.Class_method(self.this, arg)
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# returnValue.userManagesMemory = 1 (optional)
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# return returnValue
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self.outputCFunctionComment(file, nesting+2)
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argTypes = self.typeDescriptor.argumentTypes
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thislessArgTypes = self.typeDescriptor.thislessArgTypes()
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self.outputTypeChecking(methodClass, thislessArgTypes, file, nesting+2)
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indent(file, nesting+2, 'returnValue = ' + self.typeDescriptor.moduleName + '.'
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+ self.typeDescriptor.wrapperName + '(')
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file.write('self.this')
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if (len(thislessArgTypes) > 0):
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file.write(', ')
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for i in range(len(thislessArgTypes)):
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file.write(thislessArgTypes[i].passName())
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if (i < (len(thislessArgTypes)-1)):
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file.write(', ')
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file.write(')\n')
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# If this is an augmented assignment operator like +=, we have special rules
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# In this case we simply call the C++ function, make sure we got the same
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# return value back, then return self. Otherwise if you let it go through the
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# normal system, it actually deletes the old Python object causing the C++ memory
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# to be deleted then returns a new Python shadow object with the old C++ pointer... BAD!
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if self.getFinalName() in augmentedAssignments:
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indent(file, nesting+2, 'assert self.this == returnValue\n')
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indent(file, nesting+2, 'return self\n')
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else:
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returnType = self.typeDescriptor.returnType.recursiveTypeDescriptor()
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returnType.generateReturnValueWrapper(methodClass, file,
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self.typeDescriptor.userManagesMemory,
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needsDowncast, nesting+2)
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def outputMethodFooter(self, methodClass, file, nesting):
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indent(file, nesting, 'FFIExternalObject.funcToMethod(' +self.getFinalName()+ ',' + methodClass.foreignTypeName + ",'" +self.getFinalName() +"')\n")
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indent(file, nesting, 'del ' + self.getFinalName()+' \n')
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indent(file, nesting+1,'\n')
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#indent(file, nesting, methodClass.foreignTypeName +'.'+ self.getFinalName() + ' = staticmethod(' + self.getFinalName() + ')\n')
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#indent(file, nesting,'del ' + self.getFinalName()+' \n')
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#indent(file, nesting+1, '\n')
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indent(file, nesting+1, '\n')
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##################################################
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## Static Method Code Generation
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##################################################
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def outputStaticHeader(self, methodClass, file, nesting):
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argTypes = self.typeDescriptor.argumentTypes
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indent(file, nesting, 'def ' + self.getFinalName() + '(')
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for i in range(len(argTypes)):
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file.write(argTypes[i].name)
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if (i < (len(argTypes)-1)):
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file.write(', ')
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file.write('):\n')
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def outputStaticBody(self, methodClass, file, nesting):
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# The method body will look something like
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# returnValue = panda.class_method(self.this, arg)
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# returnValue.userManagesMemory = 1 (optional)
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# return returnValue
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self.outputCFunctionComment(file, nesting+2)
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argTypes = self.typeDescriptor.argumentTypes
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thislessArgTypes = self.typeDescriptor.thislessArgTypes()
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self.outputTypeChecking(methodClass, thislessArgTypes, file, nesting+2)
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indent(file, nesting+2, 'returnValue = ' + self.typeDescriptor.moduleName + '.'
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+ self.typeDescriptor.wrapperName + '(')
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# Static methods do not take the this parameter
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if (len(thislessArgTypes) > 0):
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for i in range(len(thislessArgTypes)):
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file.write(thislessArgTypes[i].passName())
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if (i < (len(thislessArgTypes)-1)):
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file.write(', ')
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file.write(')\n')
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returnType = self.typeDescriptor.returnType.recursiveTypeDescriptor()
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returnType.generateReturnValueWrapper(methodClass, file,
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self.typeDescriptor.userManagesMemory,
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1, nesting+2)
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def outputStaticFooter(self, methodClass, file, nesting):
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indent(file, nesting, methodClass.foreignTypeName +'.'+ self.getFinalName() + ' = staticmethod(' + self.getFinalName() + ')\n')
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indent(file, nesting,'del ' + self.getFinalName()+' \n')
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indent(file, nesting+1, '\n')
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##################################################
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## Upcast Method Code Generation
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##################################################
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def outputInheritedMethodHeader(self, methodClass, parentList, file, nesting, needsDowncast):
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argTypes = self.typeDescriptor.argumentTypes
|
|
thislessArgTypes = self.typeDescriptor.thislessArgTypes()
|
|
indent(file, nesting, 'def ' + self.getFinalName() + '(self')
|
|
if (len(thislessArgTypes) > 0):
|
|
file.write(', ')
|
|
for i in range(len(thislessArgTypes)):
|
|
file.write(thislessArgTypes[i].name)
|
|
if (i < (len(thislessArgTypes)-1)):
|
|
file.write(', ')
|
|
file.write('):\n')
|
|
|
|
def outputInheritedMethodBody(self, methodClass, parentList, file, nesting, needsDowncast):
|
|
# The method body will look something like
|
|
# upcastSelf = self.upcastToParentClass()
|
|
# returnValue = libpanda.method(upcastSelf.this, arg)
|
|
# returnValue.userManagesMemory = 1 (optional)
|
|
# return returnValue
|
|
self.outputCFunctionComment(file, nesting+2)
|
|
argTypes = self.typeDescriptor.argumentTypes
|
|
thislessArgTypes = self.typeDescriptor.thislessArgTypes()
|
|
self.outputTypeChecking(methodClass, thislessArgTypes, file, nesting+2)
|
|
indent(file, nesting+2, 'upcastSelf = self\n')
|
|
for i in range(len(parentList)):
|
|
# Only output the upcast call if that parent class defines it
|
|
parentClass = parentList[i]
|
|
methodName = 'upcastTo' + parentClass.foreignTypeName
|
|
if (i != 0):
|
|
childClass = parentList[i-1]
|
|
if childClass.hasMethodNamed(methodName):
|
|
indent(file, nesting+2, 'upcastSelf = upcastSelf.' + methodName + '()\n')
|
|
else:
|
|
indent(file, nesting+2, '# upcastSelf = upcastSelf.' + methodName + '()\n')
|
|
else:
|
|
if methodClass.hasMethodNamed(methodName):
|
|
indent(file, nesting+2, 'upcastSelf = upcastSelf.' + methodName + '()\n')
|
|
else:
|
|
indent(file, nesting+2, '# upcastSelf = upcastSelf.' + methodName + '()\n')
|
|
|
|
indent(file, nesting+2, 'returnValue = ' + self.typeDescriptor.moduleName
|
|
+ '.' + self.typeDescriptor.wrapperName + '(upcastSelf.this')
|
|
if (len(thislessArgTypes) > 0):
|
|
file.write(', ')
|
|
for i in range(len(thislessArgTypes)):
|
|
file.write(thislessArgTypes[i].passName())
|
|
if (i < (len(thislessArgTypes)-1)):
|
|
file.write(', ')
|
|
file.write(')\n')
|
|
returnType = self.typeDescriptor.returnType.recursiveTypeDescriptor()
|
|
# Generate the return value code with no downcast instructions
|
|
returnType.generateReturnValueWrapper(methodClass, file,
|
|
self.typeDescriptor.userManagesMemory,
|
|
needsDowncast, nesting+2)
|
|
|
|
def outputInheritedMethodFooter(self, methodClass, parentList, file, nesting, needsDowncast):
|
|
indent(file, nesting, 'FFIExternalObject.funcToMethod(' +self.getFinalName()+ ',' + methodClass.foreignTypeName + ",'" +self.getFinalName() +"')\n")
|
|
indent(file, nesting, 'del ' + self.getFinalName()+' \n')
|
|
indent(file, nesting+1,'\n')
|
|
|
|
|
|
class GlobalValueSpecification:
|
|
def __init__(self):
|
|
self.name = ''
|
|
# We really do not need the descriptor for the value, just
|
|
# the getter and setter
|
|
# self.typeDescriptor = None
|
|
# To be filled in with a GlobalFunctionSpecification
|
|
self.getter = None
|
|
# To be filled in with a GlobalFunctionSpecification
|
|
self.setter = None
|
|
|
|
def generateGlobalCode(self, file):
|
|
indent(file, 0, '# Global value: ' + self.name + '\n')
|
|
if self.getter:
|
|
self.getter.generateGlobalCode(file)
|
|
if self.setter:
|
|
self.setter.generateGlobalCode(file)
|
|
indent(file, 0, '\n')
|
|
|
|
|
|
# Manifest symbols
|
|
class ManifestSpecification:
|
|
def __init__(self):
|
|
self.name = ''
|
|
|
|
# We are not currently using the type descriptor
|
|
self.typeDescriptor = None
|
|
|
|
# To be filled in with a GlobalFunctionSpecification
|
|
# if this manifest has one
|
|
self.getter = None
|
|
|
|
# Manifests that have int values have their int value defined
|
|
# instead of having to call a getter (because there are so many of them)
|
|
self.intValue = None
|
|
|
|
# The string definition of this manifest
|
|
self.definition = None
|
|
|
|
def generateGlobalCode(self, file):
|
|
# Note, if the manifest has no value and no getter we do not output anything
|
|
# even though they may be defined in the C++ sense. Without any values
|
|
# they are pretty useless in Python
|
|
|
|
# If it has an int value, just output that instead of bothering
|
|
# with a getter
|
|
if (self.intValue != None):
|
|
indent(file, 0, '# Manifest: ' + self.name + '\n')
|
|
indent(file, 0, (self.name + ' = ' + repr(self.intValue) + '\n'))
|
|
indent(file, 0, '\n')
|
|
|
|
elif self.definition:
|
|
indent(file, 0, ('# Manifest: ' + self.name + ' definition: ' +
|
|
self.definition + '\n'))
|
|
# Out put the getter
|
|
if self.getter:
|
|
self.getter.generateGlobalCode(file)
|
|
indent(file, 0, '\n')
|
|
|
|
|
|
class MethodArgumentSpecification:
|
|
def __init__(self):
|
|
self.name = ''
|
|
self.typeDescriptor = None
|
|
# By default it is not the this pointer
|
|
self.isThis = 0
|
|
|
|
def passName(self):
|
|
if (self.typeDescriptor.recursiveTypeDescriptor().__class__ == \
|
|
FFITypes.ClassTypeDescriptor):
|
|
return self.name + '.this'
|
|
else:
|
|
return self.name
|