More %ignore director fixes

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@9370 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
William S Fulton 2006-09-27 21:24:44 +00:00
commit 95958855cf
7 changed files with 787 additions and 710 deletions

View file

@ -1490,11 +1490,12 @@ public:
ParmList *l;
Wrapper *w;
String *tm;
String *wrap_args;
String *wrap_args = NewString("");
String *return_type;
int status = SWIG_OK;
int idx;
bool pure_virtual = false;
bool ignored_method = GetFlag(n, "feature:ignore") ? true : false;
storage = Getattr(n, "storage");
value = Getattr(n, "value");
@ -1545,205 +1546,223 @@ public:
Printf(declaration, " virtual %s %s;\n", rtype, target);
Delete(target);
/* attach typemaps to arguments (C/C++ -> Ocaml) */
String *arglist = NewString("");
Swig_typemap_attach_parms("in", l, 0);
Swig_typemap_attach_parms("directorin", l, 0);
Swig_typemap_attach_parms("directorargout", l, w);
Parm* p;
int num_arguments = emit_num_arguments(l);
int i;
char source[256];
wrap_args = NewString("");
int outputs = 0;
if (!is_void) outputs++;
/* build argument list and type conversion string */
for (i=0, idx=0, p = l; i < num_arguments; i++) {
while (Getattr(p, "tmap:ignore")) {
p = Getattr(p, "tmap:ignore:next");
}
if (Getattr(p, "tmap:directorargout") != 0) outputs++;
String* pname = Getattr(p, "name");
String* ptype = Getattr(p, "type");
Putc(',',arglist);
if ((tm = Getattr(p, "tmap:directorin")) != 0) {
Replaceall(tm, "$input", pname);
Replaceall(tm, "$owner", "0");
if (Len(tm) == 0) Append(tm, pname);
Printv(wrap_args, tm, "\n", NIL);
p = Getattr(p, "tmap:directorin:next");
continue;
} else
if (Cmp(ptype, "void")) {
/* special handling for pointers to other C++ director classes.
* ideally this would be left to a typemap, but there is currently no
* way to selectively apply the dynamic_cast<> to classes that have
* directors. in other words, the type "SwigDirector_$1_lname" only exists
* for classes with directors. we avoid the problem here by checking
* module.wrap::directormap, but it's not clear how to get a typemap to
* do something similar. perhaps a new default typemap (in addition
* to SWIGTYPE) called DIRECTORTYPE?
*/
if (SwigType_ispointer(ptype) || SwigType_isreference(ptype)) {
Node *module = Getattr(parent, "module");
Node *target = Swig_directormap(module, ptype);
sprintf(source, "obj%d", idx++);
String *nonconst = 0;
/* strip pointer/reference --- should move to Swig/stype.c */
String *nptype = NewString(Char(ptype)+2);
/* name as pointer */
String *ppname = Copy(pname);
if (SwigType_isreference(ptype)) {
Insert(ppname,0,"&");
}
/* if necessary, cast away const since Python doesn't support it! */
if (SwigType_isconst(nptype)) {
nonconst = NewStringf("nc_tmp_%s", pname);
String *nonconst_i = NewStringf("= const_cast<%s>(%s)", SwigType_lstr(ptype, 0), ppname);
Wrapper_add_localv(w, nonconst, SwigType_lstr(ptype, 0), nonconst, nonconst_i, NIL);
Delete(nonconst_i);
Swig_warning(WARN_LANG_DISCARD_CONST, input_file, line_number,
"Target language argument '%s' discards const in director method %s::%s.\n", SwigType_str(ptype, pname), classname, name);
} else {
nonconst = Copy(ppname);
}
Delete(nptype);
Delete(ppname);
String *mangle = SwigType_manglestr(ptype);
if (target) {
String *director = NewStringf("director_%s", mangle);
Wrapper_add_localv(w, director, "Swig::Director *", director, "= 0", NIL);
Wrapper_add_localv(w, source, "CAML_VALUE", source, "= Val_unit", NIL);
Printf(wrap_args, "%s = dynamic_cast<Swig::Director *>(%s);\n", director, nonconst);
Printf(wrap_args, "if (!%s) {\n", director);
Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE%s, 0);\n", source, nonconst, mangle);
Printf(wrap_args, "} else {\n");
Printf(wrap_args, "%s = %s->swig_get_self();\n", source, director);
Printf(wrap_args, "}\n");
Delete(director);
Printv(arglist, source, NIL);
} else {
Wrapper_add_localv(w, source, "CAML_VALUE", source, "= Val_unit", NIL);
Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE%s, 0);\n",
source, nonconst, mangle);
//Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE_p_%s, 0);\n",
// source, nonconst, base);
Printv(arglist, source, NIL);
}
Delete(mangle);
Delete(nonconst);
} else {
Swig_warning(WARN_TYPEMAP_DIRECTORIN_UNDEF, input_file, line_number,
"Unable to use type %s as a function argument in director method %s::%s (skipping method).\n", SwigType_str(ptype, 0), classname, name);
status = SWIG_NOWRAP;
break;
}
}
p = nextSibling(p);
}
/* declare method return value
* if the return value is a reference or const reference, a specialized typemap must
* handle it, including declaration of c_result ($result).
*/
if (!is_void) {
if (!(ignored_method && !pure_virtual)) {
Wrapper_add_localv(w, "c_result", SwigType_lstr(return_type, "c_result"), NIL);
}
}
Printv(w->code, "swig_result = Val_unit;\n",0);
Printf(w->code,"args = Val_unit;\n");
if (ignored_method) {
if (!pure_virtual) {
if (is_void)
Printf(w->code, "return ");
String *super_call = Swig_method_call(super, l);
Printf(w->code, "%s;\n", super_call);
Delete(super_call);
} else {
Printf(w->code, "Swig::DirectorPureVirtualException::raise(\"Attempted to invoke pure virtual method %s::%s\");\n", classname, name);
}
} else {
/* attach typemaps to arguments (C/C++ -> Ocaml) */
String *arglist = NewString("");
/* wrap complex arguments to values */
Printv(w->code, wrap_args, NIL);
Swig_typemap_attach_parms("in", l, 0);
Swig_typemap_attach_parms("directorin", l, 0);
Swig_typemap_attach_parms("directorargout", l, w);
/* pass the method call on to the Python object */
Printv(w->code,
"swig_result = caml_swig_alloc(1,C_list);\n"
"SWIG_Store_field(swig_result,0,args);\n"
"args = swig_result;\n"
"swig_result = Val_unit;\n",0);
Printf(w->code,
"swig_result = "
"callback3(*caml_named_value(\"swig_runmethod\"),"
"swig_get_self(),copy_string(\"%s\"),args);\n",
Getattr(n,"name"));
/* exception handling */
tm = Swig_typemap_lookup_new("director:except", n, "result", 0);
if (!tm) {
tm = Getattr(n, "feature:director:except");
}
if ((tm) && Len(tm) && (Strcmp(tm, "1") != 0)) {
Printf(w->code, "if (result == NULL) {\n");
Printf(w->code, " CAML_VALUE error = *caml_named_value(\"director_except\");\n");
Replaceall(tm, "$error", "error");
Printv(w->code, Str(tm), "\n", NIL);
Printf(w->code, "}\n");
}
Parm* p;
int num_arguments = emit_num_arguments(l);
int i;
char source[256];
/*
* Python method may return a simple object, or a tuple.
* for in/out aruments, we have to extract the appropriate values from the
* argument list, then marshal everything back to C/C++ (return value and
* output arguments).
*/
int outputs = 0;
if (!is_void) outputs++;
/* marshal return value and other outputs (if any) from value to C/C++
* type */
/* build argument list and type conversion string */
for (i=0, idx=0, p = l; i < num_arguments; i++) {
String* cleanup = NewString("");
String* outarg = NewString("");
while (Getattr(p, "tmap:ignore")) {
p = Getattr(p, "tmap:ignore:next");
}
idx = 0;
if (Getattr(p, "tmap:directorargout") != 0) outputs++;
String* pname = Getattr(p, "name");
String* ptype = Getattr(p, "type");
Putc(',',arglist);
if ((tm = Getattr(p, "tmap:directorin")) != 0) {
Replaceall(tm, "$input", pname);
Replaceall(tm, "$owner", "0");
if (Len(tm) == 0) Append(tm, pname);
Printv(wrap_args, tm, "\n", NIL);
p = Getattr(p, "tmap:directorin:next");
continue;
} else
if (Cmp(ptype, "void")) {
/* special handling for pointers to other C++ director classes.
* ideally this would be left to a typemap, but there is currently no
* way to selectively apply the dynamic_cast<> to classes that have
* directors. in other words, the type "SwigDirector_$1_lname" only exists
* for classes with directors. we avoid the problem here by checking
* module.wrap::directormap, but it's not clear how to get a typemap to
* do something similar. perhaps a new default typemap (in addition
* to SWIGTYPE) called DIRECTORTYPE?
*/
if (SwigType_ispointer(ptype) || SwigType_isreference(ptype)) {
Node *module = Getattr(parent, "module");
Node *target = Swig_directormap(module, ptype);
sprintf(source, "obj%d", idx++);
String *nonconst = 0;
/* strip pointer/reference --- should move to Swig/stype.c */
String *nptype = NewString(Char(ptype)+2);
/* name as pointer */
String *ppname = Copy(pname);
if (SwigType_isreference(ptype)) {
Insert(ppname,0,"&");
}
/* if necessary, cast away const since Python doesn't support it! */
if (SwigType_isconst(nptype)) {
nonconst = NewStringf("nc_tmp_%s", pname);
String *nonconst_i = NewStringf("= const_cast<%s>(%s)", SwigType_lstr(ptype, 0), ppname);
Wrapper_add_localv(w, nonconst, SwigType_lstr(ptype, 0), nonconst, nonconst_i, NIL);
Delete(nonconst_i);
Swig_warning(WARN_LANG_DISCARD_CONST, input_file, line_number,
"Target language argument '%s' discards const in director method %s::%s.\n", SwigType_str(ptype, pname), classname, name);
} else {
nonconst = Copy(ppname);
}
Delete(nptype);
Delete(ppname);
String *mangle = SwigType_manglestr(ptype);
if (target) {
String *director = NewStringf("director_%s", mangle);
Wrapper_add_localv(w, director, "Swig::Director *", director, "= 0", NIL);
Wrapper_add_localv(w, source, "CAML_VALUE", source, "= Val_unit", NIL);
Printf(wrap_args, "%s = dynamic_cast<Swig::Director *>(%s);\n", director, nonconst);
Printf(wrap_args, "if (!%s) {\n", director);
Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE%s, 0);\n", source, nonconst, mangle);
Printf(wrap_args, "} else {\n");
Printf(wrap_args, "%s = %s->swig_get_self();\n", source, director);
Printf(wrap_args, "}\n");
Delete(director);
Printv(arglist, source, NIL);
} else {
Wrapper_add_localv(w, source, "CAML_VALUE", source, "= Val_unit", NIL);
Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE%s, 0);\n",
source, nonconst, mangle);
//Printf(wrap_args, "%s = SWIG_NewPointerObj(%s, SWIGTYPE_p_%s, 0);\n",
// source, nonconst, base);
Printv(arglist, source, NIL);
}
Delete(mangle);
Delete(nonconst);
} else {
Swig_warning(WARN_TYPEMAP_DIRECTORIN_UNDEF, input_file, line_number,
"Unable to use type %s as a function argument in director method %s::%s (skipping method).\n", SwigType_str(ptype, 0), classname, name);
status = SWIG_NOWRAP;
break;
}
}
p = nextSibling(p);
}
/* this seems really silly. the node's type excludes
* qualifier/pointer/reference markers, which have to be retrieved
* from the decl field to construct return_type. but the typemap
* lookup routine uses the node's type, so we have to swap in and
* out the correct type. it's not just me, similar silliness also
* occurs in Language::cDeclaration().
*/
Setattr(n, "type", return_type);
tm = Swig_typemap_lookup_new("directorout", n, "c_result", w);
Setattr(n, "type", type);
if (tm == 0) {
String *name = NewString("c_result");
tm = Swig_typemap_search("directorout", return_type, name, NULL);
Delete(name);
}
if (tm != 0) {
Replaceall(tm, "$input", "swig_result");
/* TODO check this */
if (Getattr(n,"wrap:disown")) {
Replaceall(tm,"$disown","SWIG_POINTER_DISOWN");
} else {
Replaceall(tm,"$disown","0");
}
Replaceall(tm, "$result", "c_result");
Printv(w->code, tm, "\n", NIL);
}
/* marshal outputs */
for (p = l; p; ) {
if ((tm = Getattr(p, "tmap:directorargout")) != 0) {
Replaceall(tm, "$input", "swig_result");
Replaceall(tm, "$result", Getattr(p, "name"));
Printv(w->code, tm, "\n", NIL);
p = Getattr(p, "tmap:directorargout:next");
} else {
p = nextSibling(p);
}
Printv(w->code, "swig_result = Val_unit;\n",0);
Printf(w->code,"args = Val_unit;\n");
/* wrap complex arguments to values */
Printv(w->code, wrap_args, NIL);
/* pass the method call on to the Python object */
Printv(w->code,
"swig_result = caml_swig_alloc(1,C_list);\n"
"SWIG_Store_field(swig_result,0,args);\n"
"args = swig_result;\n"
"swig_result = Val_unit;\n",0);
Printf(w->code,
"swig_result = "
"callback3(*caml_named_value(\"swig_runmethod\"),"
"swig_get_self(),copy_string(\"%s\"),args);\n",
Getattr(n,"name"));
/* exception handling */
tm = Swig_typemap_lookup_new("director:except", n, "result", 0);
if (!tm) {
tm = Getattr(n, "feature:director:except");
}
if ((tm) && Len(tm) && (Strcmp(tm, "1") != 0)) {
Printf(w->code, "if (result == NULL) {\n");
Printf(w->code, " CAML_VALUE error = *caml_named_value(\"director_except\");\n");
Replaceall(tm, "$error", "error");
Printv(w->code, Str(tm), "\n", NIL);
Printf(w->code, "}\n");
}
/*
* Python method may return a simple object, or a tuple.
* for in/out aruments, we have to extract the appropriate values from the
* argument list, then marshal everything back to C/C++ (return value and
* output arguments).
*/
/* marshal return value and other outputs (if any) from value to C/C++
* type */
String* cleanup = NewString("");
String* outarg = NewString("");
idx = 0;
/* this seems really silly. the node's type excludes
* qualifier/pointer/reference markers, which have to be retrieved
* from the decl field to construct return_type. but the typemap
* lookup routine uses the node's type, so we have to swap in and
* out the correct type. it's not just me, similar silliness also
* occurs in Language::cDeclaration().
*/
Setattr(n, "type", return_type);
tm = Swig_typemap_lookup_new("directorout", n, "c_result", w);
Setattr(n, "type", type);
if (tm == 0) {
String *name = NewString("c_result");
tm = Swig_typemap_search("directorout", return_type, name, NULL);
Delete(name);
}
if (tm != 0) {
Replaceall(tm, "$input", "swig_result");
/* TODO check this */
if (Getattr(n,"wrap:disown")) {
Replaceall(tm,"$disown","SWIG_POINTER_DISOWN");
} else {
Replaceall(tm,"$disown","0");
}
Replaceall(tm, "$result", "c_result");
Printv(w->code, tm, "\n", NIL);
}
/* marshal outputs */
for (p = l; p; ) {
if ((tm = Getattr(p, "tmap:directorargout")) != 0) {
Replaceall(tm, "$input", "swig_result");
Replaceall(tm, "$result", Getattr(p, "name"));
Printv(w->code, tm, "\n", NIL);
p = Getattr(p, "tmap:directorargout:next");
} else {
p = nextSibling(p);
}
}
Delete(arglist);
Delete(cleanup);
Delete(outarg);
}
/* any existing helper functions to handle this? */
if (!is_void) {
if (!(ignored_method && !pure_virtual)) {
/* A little explanation:
* The director_enum test case makes a method whose return type
* is an enum type. return_type here is "int". gcc complains
@ -1754,11 +1773,12 @@ public:
* always essentially work.
*/
if( !SwigType_isreference(return_type) ) {
Printf(w->code, "CAMLreturn((%s)c_result);\n",
SwigType_lstr(return_type, ""));
Printf(w->code, "CAMLreturn((%s)c_result);\n",
SwigType_lstr(return_type, ""));
} else {
Printf(w->code, "CAMLreturn(*c_result);\n");
Printf(w->code, "CAMLreturn(*c_result);\n");
}
}
}
Printf(w->code, "}\n");
@ -1790,12 +1810,9 @@ public:
/* clean up */
Delete(wrap_args);
Delete(arglist);
Delete(rtype);
Delete(return_type);
Delete(pclassname);
Delete(cleanup);
Delete(outarg);
DelWrapper(w);
return status;
}