Added std_string support. Renamed SWIG_exception to SWIG_exc to avoid name collision with macro in Lib/exception.i.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/gsoc2008-maciekd@10720 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/c/exception/runme.c

@@ -9,7 +9,7 @@ int main() {
     Test_unknown(t);
   }
   SWIG_catch(SWIG_AnyException) {
-    printf("incomplete type: %s\n", SWIG_exception.msg);
+    printf("incomplete type: %s\n", SWIG_exc.msg);
   }
   SWIG_endtry;
 
@@ -17,7 +17,7 @@ int main() {
     Test_simple(t);
   }
   SWIG_catch(SWIG_AnyException) {
-    printf("%s\n", SWIG_exception.msg);
+    printf("%s\n", SWIG_exc.msg);
   }
   SWIG_endtry;
 
@@ -25,7 +25,7 @@ int main() {
     Test_message(t);
   }
   SWIG_catch(SWIG_AnyException) {
-    printf("%s\n", SWIG_exception.msg);
+    printf("%s\n", SWIG_exc.msg);
   }
   SWIG_endtry;
 
@@ -33,7 +33,8 @@ int main() {
     Test_hosed(t);
   }
   SWIG_catch(Exc) {
-    printf("%d %s\n", Exc_code_get(SWIG_exception.klass), Exc_msg_get(SWIG_exception.klass));
+    printf("%d %s\n", Exc_code_get(SWIG_exc.klass), 
+        Exc_msg_get(SWIG_exc.klass));
   }
 
   int i;
@@ -42,10 +43,11 @@ int main() {
       Test_multi(t, i);
     }
     SWIG_catch(Exc) {
-      printf("%d %s\n", Exc_code_get(SWIG_exception.klass), Exc_msg_get(SWIG_exception.klass));
+      printf("%d %s\n", Exc_code_get(SWIG_exc.klass), 
+          Exc_msg_get(SWIG_exc.klass));
     }
     SWIG_catch(SWIG_AnyException) {
-      printf("%s\n", SWIG_exception.msg);
+      printf("%s\n", SWIG_exc.msg);
     }
     SWIG_endtry;
   }

Examples/test-suite/c/exception_order_runme.c

@@ -31,9 +31,9 @@ int main() {
     A_foobar(a);
   }
   SWIG_catch(SWIG_AnyException) {
-    if (strcmp(SWIG_exception.msg, "postcatch unknown") != 0) {
+    if (strcmp(SWIG_exc.msg, "postcatch unknown") != 0) {
       fprintf(stderr, "bad exception order\n");
-      SWIG_throw_msg(SWIG_exception.klass, SWIG_exception.msg);
+      SWIG_throw_msg(SWIG_exc.klass, SWIG_exc.msg);
     }
   }
   SWIG_endtry;

Lib/c/c.swg

@@ -72,12 +72,12 @@ typedef struct {
 
 %typemap(in) SWIGTYPE * {
   if ($input)
-    $1 = ($1_type) $input->obj;
+    $1 = ($1_ltype) $input->obj;
 }
 
 %typemap(in) SWIGTYPE * [ANY] {
   if ($input) {
-    $1 = ($1_basetype*) malloc($1_dim0 * sizeof($1_basetype));
+    $1 = ($1_basetype *) malloc($1_dim0 * sizeof($1_basetype));
     int i;
     for (i = 0; i < $1_dim0; ++i)
       if ($input[i])
@@ -185,12 +185,12 @@ SWIGINTERN int SWIG_registry_size = SWIG_REGISTRY_INIT;
 SWIGINTERN SwigObj *SWIG_create_object(const char *classname);
 SWIGINTERN void SWIG_destroy_object(SwigObj *object);
 
-SWIGEXPORTC struct SWIG_exception_struct {
+SWIGEXPORTC struct SWIG_exc_struct {
   int code;
   char *msg;
   SwigObj *klass;
   int handled;
-} SWIG_exception = { 0, 0, 0, 0 };
+} SWIG_exc = { 0, 0, 0, 0 };
 
 SWIGEXPORTC jmp_buf SWIG_rt_env;
 SWIGEXPORTC int SWIG_rt_init = 0;
@@ -243,12 +243,12 @@ SWIGINTERN void SWIG_remove_registry_entry(SwigObj *entry) {
 SWIGINTERN void SWIG_cleanup() {
   if (SWIG_rt_stack_base)
     free(SWIG_rt_stack_base);
-  if (SWIG_exception.msg)
-   free(SWIG_exception.msg);
-  if (SWIG_exception.klass) {
-    if (SWIG_exception.klass->typenames)
-      free(SWIG_exception.klass->typenames);
-    free(SWIG_exception.klass);
+  if (SWIG_exc.msg)
+   free(SWIG_exc.msg);
+  if (SWIG_exc.klass) {
+    if (SWIG_exc.klass->typenames)
+      free(SWIG_exc.klass->typenames);
+    free(SWIG_exc.klass);
   }
   int i;
   if (SWIG_registry_base) {
@@ -276,10 +276,10 @@ SWIGEXPORTC int SWIG_rt_catch(const char *type) {
   if (!type || (strcmp("SWIG_AnyException", type) == 0)) {
     result = 1;
   }
-  else if (SWIG_exception.klass) {
+  else if (SWIG_exc.klass) {
     int i = 0;
-    while (SWIG_exception.klass->typenames[i]) {
-      if (strcmp(SWIG_exception.klass->typenames[i++], type) == 0) {
+    while (SWIG_exc.klass->typenames[i]) {
+      if (strcmp(SWIG_exc.klass->typenames[i++], type) == 0) {
         result = 1;
         break;
       }
@@ -287,36 +287,36 @@ SWIGEXPORTC int SWIG_rt_catch(const char *type) {
   }
   if (result) {
     SWIG_rt_stack_pop();
-    SWIG_exception.handled = 1;
+    SWIG_exc.handled = 1;
   }
   return result;
 }
 
 SWIGEXPORTC void SWIG_rt_throw(SwigObj *klass, const char *msg) {
-  if (SWIG_exception.msg) {
-    free(SWIG_exception.msg);
-    SWIG_exception.msg = (char *) 0;
+  if (SWIG_exc.msg) {
+    free(SWIG_exc.msg);
+    SWIG_exc.msg = (char *) 0;
   }
   if (msg) {
-    SWIG_exception.msg = (char *) malloc(strlen(msg) + 1);
-    strcpy(SWIG_exception.msg, msg);
+    SWIG_exc.msg = (char *) malloc(strlen(msg) + 1);
+    strcpy(SWIG_exc.msg, msg);
   }
-  SWIG_exception.klass = klass;
-  SWIG_exception.handled = 0;
+  SWIG_exc.klass = klass;
+  SWIG_exc.handled = 0;
   longjmp(SWIG_rt_env, 1);
 }
 
 SWIGEXPORTC void SWIG_rt_unhandled() {
-  if (SWIG_exception.msg) { 
-    free(SWIG_exception.msg);
-    SWIG_exception.msg = 0;
+  if (SWIG_exc.msg) { 
+    free(SWIG_exc.msg);
+    SWIG_exc.msg = 0;
   }
   SWIG_rt_stack_pop();
-  longjmp(SWIG_rt_env, SWIG_exception.code);
+  longjmp(SWIG_rt_env, SWIG_exc.code);
 }
 
 SWIGEXPORTC void SWIG_rt_endtry() {
-  if (SWIG_exception.handled) {
+  if (SWIG_exc.handled) {
     if (setjmp(SWIG_rt_env) == 0) {
       SWIG_rt_stack_push();
       longjmp(SWIG_cpp_back_env, 1);
@@ -338,9 +338,9 @@ SWIGEXPORTC int SWIG_exit(int code) {
 
 SWIGINTERN void SWIG_terminate() {
   fprintf(stderr, "Unhandled exception: %s\n%s\nExitting...\n", 
-    SWIG_exception.klass->typenames[0],
-    SWIG_exception.msg ? SWIG_exception.msg : "");
-  SWIG_exit(SWIG_exception.code);
+    SWIG_exc.klass->typenames[0],
+    SWIG_exc.msg ? SWIG_exc.msg : "");
+  SWIG_exit(SWIG_exc.code);
 }
 
 SWIGINTERN void SWIG_Runtime_init() {
@@ -348,11 +348,11 @@ SWIGINTERN void SWIG_Runtime_init() {
   if (!SWIG_rt_init) {
     SWIG_rt_init = 1;
     SWIG_rt_stack_base = SWIG_rt_stack_ptr = (jmp_buf *) malloc(sizeof(jmp_buf) * SWIG_MAX_RT_STACK);
-    if (SWIG_exception.code = setjmp(SWIG_rt_env)) {
+    if (SWIG_exc.code = setjmp(SWIG_rt_env)) {
       // deallocate C++ exception
       if (setjmp(SWIG_rt_env) == 0) {
         SWIG_rt_stack_push();
-        SWIG_exception.handled = 1;
+        SWIG_exc.handled = 1;
         longjmp(SWIG_cpp_back_env, 1);
       }
       SWIG_terminate();
@@ -379,11 +379,11 @@ typedef struct {
   const char **typenames;
 } SwigObj;
 
-SWIGIMPORT struct SWIG_exception_struct {
+SWIGIMPORT struct SWIG_exc_struct {
   int code;
   char *msg;
   SwigObj *klass;
-} SWIG_exception;
+} SWIG_exc;
 
 SWIGIMPORT void SWIG_rt_try();
 SWIGIMPORT int SWIG_rt_catch(const char *type);
@@ -394,7 +394,7 @@ SWIGIMPORT int SWIG_exit(int code);
 
 #define SWIG_try \
   SWIG_rt_try(); \
-  if ((SWIG_exception.code = setjmp(SWIG_rt_env)) == 0) 
+  if ((SWIG_exc.code = setjmp(SWIG_rt_env)) == 0) 
 #define SWIG_catch(type) else if (SWIG_rt_catch(#type))
 #define SWIG_throw(klass) SWIG_rt_throw((SwigObj *) klass, 0);
 #define SWIG_throw_msg(klass, msg) SWIG_rt_throw((SwigObj *) klass, msg);

Lib/c/std_string.i

@@ -0,0 +1,50 @@
+%{
+#include <string>
+%}
+
+namespace std {
+
+// use "const string &" typemaps for wrapping member strings
+%naturalvar string;
+
+class string;
+
+%typemap(ctype) string "char *"
+%typemap(ctype) const string & "char *"
+%typemap(couttype) string  "char *"
+%typemap(couttype) const string & "char *"
+
+%typemap(in) string {
+  if ($input) {
+    $1.assign($input);
+  }
+  else {
+    $1.resize(0);
+  }
+}
+
+%typemap(in) const string & {
+  if ($input) {
+    $1 = new std::string($input);
+  }
+  else {
+    $1 = new std::string();
+    $1->resize(0);
+  }
+}
+
+%typemap(freearg) const string & {
+  if ($1)
+    delete $1;
+}
+
+%typemap(out) string, const string & {
+  const char *str = cppresult.c_str();
+  size_t len = strlen(str);
+  $result = (char *) malloc(len + 1);
+  memcpy($result, str, len);
+  $result[len] = '\0';
+}
+
+}
+

Lib/exception.i

@@ -217,13 +217,15 @@ SWIGINTERN void SWIG_CSharpException(int code, const char *msg) {
 %inline %{
 struct SWIG_CException {
   SWIG_CException(int code) {
-    SWIG_exception.code = code;
+    SWIG_exc.code = code;
   }
 };
 %}
 
 #define SWIG_exception(code, msg)\
-  SWIG_CThrowException(_wrap_new_SWIG_CException(code), msg);
+  SwigObj *_ex = SWIG_create_object("SWIG_CException"); \
+  _ex->obj = (void *) new SWIG_CException(code); \
+  SWIG_CThrowException(_ex, msg);
 
 #endif // SWIGC
 

Source/Modules/c.cxx

@@ -510,12 +510,19 @@ ready:
         if (SwigType_isconst(type))
           SwigType_del_qualifier(type);
         SwigType *return_var_type;
-        return_var_type = SwigType_isreference(type) ? SwigType_add_pointer(SwigType_base(type)) : type;
-        return_var_type = SwigType_isarray(type) ? SwigType_add_pointer(SwigType_base(type)) : type;
+
         if (SwigType_isenum(type))
           Wrapper_add_localv(wrapper, "cppresult", "int", "cppresult", NIL);
-        else
+        else {
+          if (SwigType_isreference(type))
+            return_var_type = SwigType_base(type);
+          else if (SwigType_isarray(type))
+            return_var_type = SwigType_add_pointer(SwigType_base(type));
+          else
+            return_var_type = type;
+          
           Wrapper_add_localv(wrapper, "cppresult", SwigType_str(return_var_type, 0), "cppresult", NIL);
+        }
       }
 
       // make sure lnames are set
@@ -618,7 +625,7 @@ ready:
       // emit action code
       String *action = emit_action(n);
       if (Getattr(n, "throws") || (Cmp(Getattr(n, "feature:except"), "0") != 0)) {
-        Printf(action, "if (SWIG_exception.handled) {\nSWIG_rt_stack_pop();\nlongjmp(SWIG_rt_env, 1);\n}\n");
+        Printf(action, "if (SWIG_exc.handled) {\nSWIG_rt_stack_pop();\nlongjmp(SWIG_rt_env, 1);\n}\n");
       }
       if (Cmp(nodeType(n), "constructor") != 0)
         Replace(action, "result =", "cppresult = $mod", DOH_REPLACE_FIRST);
@@ -627,8 +634,8 @@ ready:
       if (SwigType_isreference(type)) {
         String *ref_cast = NewString("");
         if (SwigType_isconst(SwigType_del_reference(type))) {
-          Printf(ref_cast, "const_cast<%s*>(&", SwigType_str(SwigType_base(type), 0));
-          Replaceall(action, ";", ");");
+          //Printf(ref_cast, "(%s*)", SwigType_str(SwigType_base(type), 0));
+          Printf(ref_cast, "*");
         }
         else
           Printf(ref_cast, "&");
@@ -656,6 +663,35 @@ ready:
         Append(wrapper->code, action);
       }
 
+      // insert constraint checking
+      for (p = parms; p; ) {
+        if ((tm = Getattr(p, "tmap:check"))) {
+          Replaceall(tm, "$target", Getattr(p, "lname"));
+          Printv(wrapper->code, tm, "\n", NIL);
+          p = Getattr(p, "tmap:check:next");
+        }
+        else {
+          p = nextSibling(p);
+        }
+      }
+
+      // insert cleanup code
+      for (p = parms; p; ) {
+        if ((tm = Getattr(p, "tmap:freearg"))) {
+          if (tm && (Len(tm) != 0)) {
+            String *input = NewStringf("c%s", Getattr(p, "lname"));
+            Replaceall(tm, "$source", Getattr(p, "lname"));
+            Replaceall(tm, "$input", input);
+            Delete(input);
+            Printv(wrapper->code, tm, "\n", NIL);
+          }
+          p = Getattr(p, "tmap:freearg:next");
+        }
+        else {
+          p = nextSibling(p);
+        }
+      }
+
       if (!is_void_return)
         Append(wrapper->code, "return result;\n");