Fix Fix #1927852 - #include directives don't preprocess the file passed to it

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12457 626c5289-ae23-0410-ae9c-e8d60b6d4f22

CHANGES.current

@@ -5,6 +5,12 @@ See the RELEASENOTES file for a summary of changes in each release.
 Version 2.0.2 (in progress)
 ===========================
 
+2011-02-13: wsfulton
+            Fix #1927852 #include directives don't preprocess the file passed to it. The fix is for
+            #include with -importall or -includeall, %include and %import, for example:
+              #define FILENAME "abc.h"
+              %include FILENAME
+
 2011-02-12: wsfulton
             Fix #1940536, overactive preprocessor which was expanding defined(...) outside of #if and #elif
             preprocessor directives.

Examples/test-suite/common.mk

@@ -494,6 +494,7 @@ C_TEST_CASES += \
 	preproc \
 	preproc_constants_c \
 	preproc_defined \
+	preproc_include \
 	preproc_line_file \
 	ret_by_value \
 	simple_array \
@@ -518,6 +519,7 @@ MULTI_CPP_TEST_CASES += \
 
 # Custom tests - tests with additional commandline options
 wallkw.cpptest: SWIGOPT += -Wallkw
+preproc_include.ctest: SWIGOPT += -includeall
 
 
 NOT_BROKEN_TEST_CASES =	$(CPP_TEST_CASES:=.cpptest) \

Examples/test-suite/preproc_include.i

@@ -0,0 +1,18 @@
+%module preproc_include
+
+%{
+#include "preproc_include_a.h"
+#include "preproc_include_b.h"
+int multiply10(int a) { return a*10; }
+int multiply20(int a) { return a*20; }
+int multiply30(int a) { return a*30; }
+%}
+
+#define INCLUDE_B preproc_include_b.h
+#define FILE_INCLUDE(FNAME) #FNAME
+
+%include FILE_INCLUDE(preproc_include_a.h)
+
+// Note that this test uses -includeall, so including preproc_include_b.h also includes preproc_include_c.h
+%include INCLUDE_B
+

Examples/test-suite/preproc_include_a.h

@@ -0,0 +1,3 @@
+
+int multiply10(int a);
+

Examples/test-suite/preproc_include_b.h

@@ -0,0 +1,7 @@
+
+int multiply20(int a);
+
+#define PREPROC_INCLUDE_C "preproc_include_c.h"
+
+#include PREPROC_INCLUDE_C
+

Examples/test-suite/preproc_include_c.h

@@ -0,0 +1,3 @@
+
+int multiply30(int a);
+

Examples/test-suite/python/preproc_include_runme.py

@@ -0,0 +1,11 @@
+import preproc_include
+
+if preproc_include.multiply10(10) != 100:
+  raise RuntimeError
+
+if preproc_include.multiply20(10) != 200:
+  raise RuntimeError
+
+if preproc_include.multiply30(10) != 300:
+  raise RuntimeError
+

Source/Preprocessor/cpp.c

@@ -643,7 +643,7 @@ unterm:
 }
 
 /* -----------------------------------------------------------------------------
- * DOH *get_filename(DOH *str)
+ * DOH *get_filename()
  *
  * Read a filename from str.   A filename can be enclosed in quotes, angle brackets,
  * or bare.
@@ -1656,12 +1656,14 @@ String *Preprocessor_parse(String *s) {
 	  String *s1, *s2, *fn;
 	  char *dirname;
 	  int sysfile = 0;
+	  String *filename_processed;
 	  if (include_all && import_all) {
 	    Swig_warning(WARN_PP_INCLUDEALL_IMPORTALL, Getfile(s), Getline(id), "Both includeall and importall are defined: using includeall\n");
 	    import_all = 0;
 	  }
-	  Seek(value, 0, SEEK_SET);
-	  fn = get_filename(value, &sysfile);
+	  filename_processed = Preprocessor_replace(value);
+	  Seek(filename_processed, 0, SEEK_SET);
+	  fn = get_filename(filename_processed, &sysfile);
 	  s1 = cpp_include(fn, sysfile);
 	  if (s1) {
 	    if (include_all)
@@ -1787,11 +1789,13 @@ String *Preprocessor_parse(String *s) {
 	Ungetc(c, s);
 	/* Look for common SWIG directives  */
 	if (Equal(decl, kpp_dinclude) || Equal(decl, kpp_dimport) || Equal(decl, kpp_dextern)) {
-	  /* Got some kind of file inclusion directive  */
+	  /* Got some kind of file inclusion directive, eg: %import(option1="value1") "filename" */
 	  if (allow) {
 	    DOH *s1, *s2, *fn, *opt;
-	    String *options_whitespace = NewString("");
-	    String *filename_whitespace = NewString("");
+	    String *options_whitespace = NewStringEmpty();
+	    String *filename_whitespace = NewStringEmpty();
+	    String *filename_unprocessed = NewStringEmpty();
+	    String *filename_processed;
 	    int sysfile = 0;
 
 	    if (Equal(decl, kpp_dextern)) {
@@ -1801,8 +1805,17 @@ String *Preprocessor_parse(String *s) {
 	    }
 	    skip_whitespace(s, options_whitespace);
 	    opt = get_options(s);
+
 	    skip_whitespace(s, filename_whitespace);
-	    fn = get_filename(s, &sysfile);
+	    copy_location(s, filename_unprocessed);
+	    while (((c = Getc(s)) != EOF) && (!isspace(c)))
+	      Putc(c, filename_unprocessed);
+	    if (isspace(c))
+	      Ungetc(c, s);
+	    filename_processed = Preprocessor_replace(filename_unprocessed);
+	    Seek(filename_processed, 0, SEEK_SET);
+
+	    fn = get_filename(filename_processed, &sysfile);
 	    s1 = cpp_include(fn, sysfile);
 	    if (s1) {
 	      char *dirname;
@@ -1832,6 +1845,8 @@ String *Preprocessor_parse(String *s) {
 	      Delete(s1);
 	    }
 	    Delete(fn);
+	    Delete(filename_processed);
+	    Delete(filename_unprocessed);
 	    Delete(filename_whitespace);
 	    Delete(options_whitespace);
 	  }