const char *vtkWrapText_PythonSignature(
FunctionInfo *currentFunction)
{
/* string is intentionally not freed until the program exits */
static struct vtkWPString staticString = { NULL, 0, 0 };
struct vtkWPString *result;
ValueInfo *arg, *ret;
const char *parens[2] = { "(", ")" };
const char *braces[2] = { "[", "]" };
const char **delims;
int i, n;
n = vtkWrap_CountWrappedParameters(currentFunction);
result = &staticString;
result->len = 0;
/* print out the name of the method */
vtkWPString_Append(result, "V.");
vtkWPString_Append(result, currentFunction->Name);
/* print the arg list */
vtkWPString_Append(result, "(");
for (i = 0; i < n; i++)
{
arg = currentFunction->Parameters[i];
if (i != 0)
{
vtkWPString_Append(result, ", ");
}
delims = parens;
if (!vtkWrap_IsConst(arg) &&
!vtkWrap_IsSetVectorMethod(currentFunction))
{
delims = braces;
}
vtkWrapText_PythonTypeSignature(result, delims, arg);
}
vtkWPString_Append(result, ")");
/* if this is a void method, we are finished */
/* otherwise, print "->" and the return type */
ret = currentFunction->ReturnValue;
if (ret && (ret->Type & VTK_PARSE_UNQUALIFIED_TYPE) != VTK_PARSE_VOID)
{
vtkWPString_Append(result, " -> ");
vtkWrapText_PythonTypeSignature(result, parens, ret);
}
if (currentFunction->Signature)
{
vtkWPString_Append(result, "\nC++: ");
vtkWPString_Append(result, currentFunction->Signature);
}
return result->str;
}
/* Write back to all the reference arguments and array arguments that
* were passed, but only write to arrays if the array has changed and
* the array arg was non-const */
static void vtkWrapPython_WriteBackToArgs(
FILE *fp, FunctionInfo *currentFunction)
{
const char *asterisks = "**********";
ValueInfo *arg;
int i, j, n, m;
/* do nothing for SetVector macros */
if (vtkWrap_IsSetVectorMethod(currentFunction))
{
return;
}
m = vtkWrap_CountWrappedParameters(currentFunction);
/* check array value change for args that are non-const */
for (i = 0; i < m; i++)
{
arg = currentFunction->Parameters[i];
n = arg->NumberOfDimensions;
if (n < 1 && (vtkWrap_IsArray(arg) || vtkWrap_IsPODPointer(arg)))
{
n = 1;
}
if (vtkWrap_IsNonConstRef(arg) &&
!vtkWrap_IsObject(arg))
{
fprintf(fp,
" if (!ap.ErrorOccurred())\n"
" {\n"
" ap.SetArgValue(%d, temp%d);\n"
" }\n",
i, i);
}
else if ((vtkWrap_IsArray(arg) || vtkWrap_IsNArray(arg) ||
vtkWrap_IsPODPointer(arg)) &&
!vtkWrap_IsConst(arg) &&
!vtkWrap_IsSetVectorMethod(currentFunction))
{
fprintf(fp,
" if (ap.ArrayHasChanged(%.*stemp%d, %.*ssave%d, ",
(n-1), asterisks, i, (n-1), asterisks, i);
if (vtkWrap_IsNArray(arg))
{
for (j = 0; j < arg->NumberOfDimensions; j++)
{
fprintf(fp, "%ssize%d[%d]", (j == 0 ? "" : "*"), i, j);
}
}
else
{
fprintf(fp, "size%d", i);
}
fprintf(fp, ") &&\n"
" !ap.ErrorOccurred())\n"
" {\n");
if (vtkWrap_IsNArray(arg))
{
fprintf(fp,
" ap.SetNArray(%d, %.*stemp%d, %d, size%d);\n",
i, (n-1), asterisks, i, n, i);
}
else
{
fprintf(fp,
" ap.SetArray(%d, temp%d, size%d);\n",
i, i, i);
}
fprintf(fp,
" }\n"
"\n");
}
}
}
/* Declare all local variables used by the wrapper method */
void vtkWrapPython_DeclareVariables(
FILE *fp, ClassInfo *data, FunctionInfo *theFunc)
{
ValueInfo *arg;
int i, n;
n = vtkWrap_CountWrappedParameters(theFunc);
/* temp variables for arg values */
for (i = 0; i < n; i++)
{
arg = theFunc->Parameters[i];
/* a callable python object for function args */
if (vtkWrap_IsFunction(arg))
{
fprintf(fp,
" PyObject *temp%d = NULL;\n",
i);
/* ignore further arguments */
break;
}
/* a PyObject argument will simply be passed through */
if (vtkWrap_IsPythonObject(arg))
{
fprintf(fp,
" PyObject *temp%d;\n",
i);
continue;
}
/* temps for arrays */
if (vtkWrap_IsArray(arg) || vtkWrap_IsNArray(arg) ||
vtkWrap_IsPODPointer(arg))
{
/* for non-const arrays, alloc twice as much space */
const char *mtwo = "";
if (!vtkWrap_IsConst(arg) && !vtkWrap_IsSetVectorMethod(theFunc))
{
mtwo = "2*";
}
if (arg->CountHint || vtkWrap_IsPODPointer(arg))
{
/* prepare for "T *" arg, where T is a plain type */
fprintf(fp,
" int size%d = ap.GetArgSize(%d);\n"
" vtkPythonArgs::Array<%s> store%d(%ssize%d);\n"
" %s *temp%d = store%d.Data();\n",
i, i,
vtkWrap_GetTypeName(arg), i, mtwo, i,
vtkWrap_GetTypeName(arg), i, i);
if (!vtkWrap_IsConst(arg))
{
fprintf(fp,
" %s *save%d = (size%d == 0 ? NULL : temp%d + size%d);\n",
vtkWrap_GetTypeName(arg), i, i, i, i);
}
}
else if (vtkWrap_IsArray(arg) && arg->Value)
{
/* prepare for "T a[n] = NULL" arg (array whose default is NULL) */
fprintf(fp,
" int size%d = 0;\n"
" %s store%d[%s%d];\n"
" %s *temp%d = NULL;\n",
i,
vtkWrap_GetTypeName(arg), i, mtwo, arg->Count,
vtkWrap_GetTypeName(arg), i);
if (!vtkWrap_IsConst(arg))
{
fprintf(fp,
" %s *save%d = NULL;\n",
vtkWrap_GetTypeName(arg), i);
}
fprintf(fp,
" if (ap.GetArgSize(%d) > 0)\n"
" {\n"
" size%d = %d;\n"
" temp%d = store%d;\n",
i,
i, arg->Count,
i, i);
if (!vtkWrap_IsConst(arg))
{
fprintf(fp,
" save%d = store%d + %d;\n",
i, i, arg->Count);
}
fprintf(fp,
" }\n");
}
else
{
/* prepare for "T a[n]" or "T a[n][m]" array arg */
vtkWrap_DeclareVariableSize(fp, arg, "size", i);
vtkWrap_DeclareVariable(fp, data, arg, "temp", i, VTK_WRAP_ARG);
if (!vtkWrap_IsConst(arg) &&
!vtkWrap_IsSetVectorMethod(theFunc))
{
/* for saving a copy of the array */
vtkWrap_DeclareVariable(fp, data, arg, "save", i, VTK_WRAP_ARG);
}
}
}
else
{
/* make a "temp" variable for any other kind of argument */
vtkWrap_DeclareVariable(fp, data, arg, "temp", i, VTK_WRAP_ARG);
}
/* temps for buffer objects */
if (vtkWrap_IsVoidPointer(arg))
{
fprintf(fp,
" Py_buffer pbuf%d = VTK_PYBUFFER_INITIALIZER;\n",
i);
}
/* temps for conversion constructed objects, which only occur
* for special objects */
if (vtkWrap_IsSpecialObject(arg) &&
!vtkWrap_IsNonConstRef(arg))
{
fprintf(fp,
" PyObject *pobj%d = NULL;\n",
i);
}
}
if (theFunc->ReturnValue)
{
/* the size for a one-dimensional array */
if (vtkWrap_IsArray(theFunc->ReturnValue) &&
!theFunc->ReturnValue->CountHint)
{
fprintf(fp,
" int sizer = %d;\n",
theFunc->ReturnValue->Count);
}
}
/* temp variable for the Python return value */
fprintf(fp,
" PyObject *result = NULL;\n"
"\n");
}
/* Declare all local variables used by the wrapper method */
void vtkWrapPython_DeclareVariables(
FILE *fp, ClassInfo *data, FunctionInfo *theFunc)
{
ValueInfo *arg;
int i, n;
int storageSize;
n = vtkWrap_CountWrappedParameters(theFunc);
/* temp variables for arg values */
for (i = 0; i < n; i++)
{
arg = theFunc->Parameters[i];
if (vtkWrap_IsPythonObject(arg) ||
/* a callable python object for function args */
vtkWrap_IsFunction(arg))
{
fprintf(fp,
" PyObject *temp%d = NULL;\n",
i);
break;
}
/* make a "temp" variable for the argument */
vtkWrap_DeclareVariable(fp, data, arg, "temp", i, VTK_WRAP_ARG);
/* temps for buffer objects */
if (vtkWrap_IsVoidPointer(arg))
{
fprintf(fp,
" Py_buffer pbuf%d = VTK_PYBUFFER_INITIALIZER;\n",
i);
}
/* temps for conversion constructed objects, which only occur
* for special objects */
if (vtkWrap_IsSpecialObject(arg) &&
!vtkWrap_IsNonConstRef(arg))
{
fprintf(fp,
" PyObject *pobj%d = NULL;\n",
i);
}
/* temps for arrays */
if (vtkWrap_IsArray(arg) || vtkWrap_IsNArray(arg) ||
vtkWrap_IsPODPointer(arg))
{
storageSize = 4;
if (!vtkWrap_IsConst(arg) &&
!vtkWrap_IsSetVectorMethod(theFunc))
{
/* for saving a copy of the array */
vtkWrap_DeclareVariable(fp, data, arg, "save", i, VTK_WRAP_ARG);
storageSize *= 2;
}
if (arg->CountHint || vtkWrap_IsPODPointer(arg))
{
fprintf(fp,
" %s small%d[%d];\n",
vtkWrap_GetTypeName(arg), i, storageSize);
}
/* write an int array containing the dimensions */
vtkWrap_DeclareVariableSize(fp, arg, "size", i);
}
}
if (theFunc->ReturnValue)
{
/* the size for a one-dimensional array */
if (vtkWrap_IsArray(theFunc->ReturnValue) &&
!theFunc->ReturnValue->CountHint)
{
fprintf(fp,
" int sizer = %d;\n",
theFunc->ReturnValue->Count);
}
}
/* temp variable for the Python return value */
fprintf(fp,
" PyObject *result = NULL;\n"
"\n");
}
/* Get the size for vtkDataArray Tuple arguments */
static void vtkWrapPython_GetSizesForArrays(
FILE *fp, FunctionInfo *theFunc, int is_vtkobject)
{
int i, j, n;
const char *indentation = "";
const char *mtwo;
ValueInfo *arg;
n = vtkWrap_CountWrappedParameters(theFunc);
j = ((is_vtkobject && !theFunc->IsStatic) ? 1 : 0);
for (i = 0; i < n; i++)
{
arg = theFunc->Parameters[i];
if (arg->CountHint || vtkWrap_IsPODPointer(arg))
{
if (j == 1)
{
fprintf(fp,
" if (op)\n"
" {\n");
indentation = " ";
}
j += 2;
if (arg->CountHint)
{
fprintf(fp,
"%s size%d = op->%s;\n",
indentation, i, arg->CountHint);
}
else
{
fprintf(fp,
"%s size%d = ap.GetArgSize(%d);\n",
indentation, i, i);
}
/* for non-const arrays, alloc twice as much space */
mtwo = "";
if (!vtkWrap_IsConst(arg) && !vtkWrap_IsSetVectorMethod(theFunc))
{
mtwo = "2*";
}
fprintf(fp,
"%s temp%d = small%d;\n"
"%s if (size%d > 4)\n"
"%s {\n"
"%s temp%d = new %s[%ssize%d];\n"
"%s }\n",
indentation, i, i,
indentation, i,
indentation,
indentation, i, vtkWrap_GetTypeName(arg), mtwo, i,
indentation);
if (*mtwo)
{
fprintf(fp,
"%s save%d = &temp%d[size%d];\n",
indentation, i, i, i);
}
}
}
if (j > 1)
{
if ((j & 1) != 0)
{
fprintf(fp,
" }\n");
}
fprintf(fp,
"\n");
}
}
/* Write the code to convert one argument with vtkPythonArgs */
void vtkWrapPython_GetSingleArgument(
FILE *fp, ClassInfo *data, int i, ValueInfo *arg, int static_call)
{
const char *prefix = "ap.";
const char *cp;
char argname[32];
char pythonname[1024];
size_t l;
argname[0] = '\0';
if (static_call)
{
prefix = "vtkPythonArgs::";
sprintf(argname, "arg%d, ", i);
}
if (vtkWrap_IsEnumMember(data, arg))
{
fprintf(fp, "%sGetEnumValue(%stemp%d, \"%s.%s\")",
prefix, argname, i, data->Name, arg->Class);
}
else if (arg->IsEnum)
{
cp = arg->Class;
for (l = 0; cp[l] != '\0'; l++)
{
if (cp[l] == ':') { break; }
}
if (cp[l] == ':' && cp[l+1] == ':')
{
fprintf(fp, "%sGetEnumValue(%stemp%d, \"%*.*s.%s\")",
prefix, argname, i, (int)l, (int)l, cp, &cp[l+2]);
}
else
{
fprintf(fp, "%sGetEnumValue(%stemp%d, \"%s\")",
prefix, argname, i, cp);
}
}
else if (vtkWrap_IsPythonObject(arg))
{
fprintf(fp, "%s%sGetPythonObject(temp%d)",
prefix, argname, i);
}
else if (vtkWrap_IsVTKObject(arg))
{
vtkWrapText_PythonName(arg->Class, pythonname);
if (strcmp(arg->Class, pythonname) != 0)
{
/* use typeid() for templated names */
fprintf(fp, "%sGetVTKObject(%stemp%d, typeid(%s).name())",
prefix, argname, i, arg->Class);
}
else
{
fprintf(fp, "%sGetVTKObject(%stemp%d, \"%s\")",
prefix, argname, i, pythonname);
}
}
else if (vtkWrap_IsSpecialObject(arg) &&
!vtkWrap_IsNonConstRef(arg))
{
vtkWrapText_PythonName(arg->Class, pythonname);
fprintf(fp, "%sGetSpecialObject(%stemp%d, pobj%d, \"%s\")",
prefix, argname, i, i, pythonname);
}
else if (vtkWrap_IsSpecialObject(arg) &&
vtkWrap_IsNonConstRef(arg))
{
vtkWrapText_PythonName(arg->Class, pythonname);
fprintf(fp, "%sGetSpecialObject(%stemp%d, \"%s\")",
prefix, argname, i, pythonname);
}
else if (vtkWrap_IsFunction(arg))
{
fprintf(fp, "%sGetFunction(%stemp%d)",
prefix, argname, i);
}
else if (vtkWrap_IsVoidPointer(arg) ||
vtkWrap_IsZeroCopyPointer(arg))
{
fprintf(fp, "%sGetBuffer(%stemp%d, &pbuf%d)",
prefix, argname, i, i);
}
else if (vtkWrap_IsString(arg) ||
(vtkWrap_IsCharPointer(arg) && vtkWrap_IsConst(arg)))
{
fprintf(fp, "%sGetValue(%stemp%d)",
prefix, argname, i);
}
else if (vtkWrap_IsNumeric(arg) &&
vtkWrap_IsScalar(arg))
{
fprintf(fp, "%sGetValue(%stemp%d)",
prefix, argname, i);
}
else if (vtkWrap_IsNArray(arg))
{
fprintf(fp, "%sGetNArray(%s%.*stemp%d, %d, size%d)",
prefix, argname, (int)(arg->NumberOfDimensions-1), "**********",
i, arg->NumberOfDimensions, i);
}
else if (vtkWrap_IsArray(arg))
{
fprintf(fp, "%sGetArray(%stemp%d, size%d)",
prefix, argname, i, i);
}
else if (vtkWrap_IsPODPointer(arg) ||
vtkWrap_IsCharPointer(arg))
{
fprintf(fp, "%sGetArray(%stemp%d, size%d)",
prefix, argname, i, i);
}
else if (vtkWrap_IsStdVector(arg))
{
fprintf(fp, "%sGetArray(%stemp%d.data(), temp%d.size())",
prefix, argname, i, i);
}
}