PythonSpecData.cpp #3

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/*******************************************************************************
 * Name		: PythonSpecData.cpp
 *
 * Author	: Sven Erik Knop <sknop@perforce.com>
 *
 * Description	: Python bindings for the Perforce API. SpecData subclass for
 * 		  P4Python. This class allows for manipulation of Spec data
 * 		  stored in a Python dict using the standard Perforce classes
 *
 ******************************************************************************/

#include <Python.h>
#include <bytesobject.h>
#include "undefdups.h"
#include "python2to3.h"
#include <clientapi.h>
#include <i18napi.h>
#include <spec.h>
#include "debug.h"
#include "P4PythonDebug.h"
#include "PythonSpecData.h"
#include <iostream>

using namespace std;

StrPtr *
PythonSpecData::GetLine( SpecElem *sd, int x, const char **cmt )
{
	PyObject * val = PyDict_GetItemString( dict, sd->tag.Text() );
	if( val == NULL ) return 0;

	if( !sd->IsList() )
	{
	    if ( ! PyObject_IsInstance( val, (PyObject *) &StringType ) ) {
		PyErr_Warn(PyExc_TypeError, "PythonSpecData::GetLine: value is not of type String");
		return 0;
	    }

	    last = GetPythonString( val );

	    return &last;
	}

	// It's a list, which means we should have an array value here
	// Ignore error checking for now!

	if ( ! PyObject_IsInstance( val, (PyObject *) &PyList_Type ) ) {
	  cout << "GetLine: SEVERE error. val is not a list!" << endl;
	  return 0;
	}

	// GetLine keeps on asking for lines until we are exhausted.
	// This throws Python, so we need to bail early

	if ( x >= PyList_Size(val) ) {
	  return 0;
	}

	val = PyList_GetItem( val, x );
	if( val == NULL ) { 
	  cout << "GetLine: SEVERE error!" << endl;
	  return 0;
	}

	if ( ! PyObject_IsInstance( val, (PyObject *) &StringType ) ) {
	    PyErr_Warn(PyExc_TypeError, "PythonSpecData::GetLine: value is not of type String");
	    return 0;
	}

	last = GetPythonString( val );
	return &last;
}

void	
PythonSpecData::SetLine( SpecElem *sd, int x, const StrPtr *v, Error *e )
{
	char * key = sd->tag.Text();
	PyObject * val = CreatePythonString( v->Text() );

	if( sd->IsList() )
	{
		PyObject * list = PyDict_GetItemString( dict, key );
		
		if( list == NULL )
		{
			list = PyList_New(0);
			PyDict_SetItemString( dict, key, list );
			Py_DECREF(list);
		}

		PyList_Append( list, val );
		Py_DECREF( val );
	}
	else
	{
	    PyDict_SetItemString( dict, key, val );
		Py_DECREF( val );
	}
	return;
}