Python typemap for FILE* (in behalf of Marcelo)

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@5929 626c5289-ae23-0410-ae9c-e8d60b6d4f22

CHANGES.current

@@ -1,6 +1,12 @@
 Version 1.3.22 (in progress)
 ==================================
 
+05/26/2004: lballabio (Luigi Ballabio)
+            Committed on behalf of Marcelo (who still has problems with 
+	    the SourceForge CVS.)
+
+	    Added Python typemaps for FILE* with (Python-only) test.
+
 5/24/2004:  dancy
 
 	* Allegro CL module:  Now using some macros (defined in

Examples/test-suite/file_test.i

@@ -0,0 +1,28 @@
+%module file_test
+
+%include file.i
+
+
+%inline 
+%{
+  int nfile(FILE *file) {
+    printf("hello %p\n", (void*)file);
+    if (file) {
+      // fprintf(file,"hello\n");
+    }
+    return 0;
+  }
+
+  int nfile(const char *filename) {
+    FILE *file = fopen(filename,"w");
+    nfile(file);
+    fclose(file);
+    return 0;
+  }
+
+  FILE* GetStdOut() {
+    return stdout;
+  }
+  
+%}
+

Examples/test-suite/python/Makefile.in

@@ -14,6 +14,7 @@ CPP_TEST_CASES += \
 	attributetest \
 	complextest \
 	director_stl \
+	file_test \
 	implicittest \
 	inplaceadd \
 	lib_std_vectora \

Examples/test-suite/python/file_test_runme.py

@@ -0,0 +1,9 @@
+import sys
+import file_test
+
+file_test.nfile(sys.stdout)
+
+cstdout = file_test.GetStdOut()
+
+file_test.nfile(cstdout)
+file_test.nfile("test.dat")

Lib/python/file.i

@@ -0,0 +1,48 @@
+/*
+  Typemaps for FILE*
+
+  From the ideas of Luigi 
+  luigi.ballabio@fastwebnet.it
+*/
+
+%types(FILE *);
+
+/* defining basic methods */
+%fragment("SWIG_AsValFilePtr","header") {
+SWIGSTATICINLINE(int)
+SWIG_AsValFilePtr(PyObject *obj, FILE **val) {
+  static swig_type_info* desc = 0;
+  FILE *ptr = 0;
+  if (!desc) desc = SWIG_TypeQuery("FILE *");
+  if ((SWIG_ConvertPtr(obj,(void **)(&ptr), desc, 0)) != -1) {
+    if (val) *val = ptr;
+    return 1;
+  } 
+  if (PyFile_Check(obj)) {
+    if (val) *val =  PyFile_AsFile(obj);
+    return 1;
+  }
+  if (val) PyErr_SetString(PyExc_TypeError, "a FILE* is expected");
+  return 0;
+}
+}
+
+%fragment("SWIG_AsFilePtr","header",fragment="SWIG_AsValFilePtr") {
+SWIGSTATICINLINE(FILE*)
+SWIG_AsFilePtr(PyObject *obj) {
+  FILE *val = 0;
+  SWIG_AsValFilePtr(obj, &val);
+  return val;
+}
+}
+
+%fragment("SWIG_CheckFilePtr","header",fragment="SWIG_AsValFilePtr") {
+SWIGSTATICINLINE(int)
+SWIG_CheckFilePtr(PyObject *obj) {
+  return SWIG_AsValFilePtr(obj, (FILE **)(0));
+}
+}
+
+/* defining the typemaps */
+%typemap_ascheck(SWIG_CCode(POINTER), SWIG_AsFilePtr, SWIG_CheckFilePtr,
+		 "SWIG_AsFilePtr", "SWIG_CheckFilePtr", FILE*);