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templated function overloading support

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@6394 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
William S Fulton 2004-10-16 20:41:17 +00:00
commit 13926748ee
4 changed files with 253 additions and 162 deletions
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64
Source/CParse/templ.c
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@ -281,7 +281,7 @@ Swig_cparse_template_expand(Node *n, String *rname, ParmList *tparms) {
{
Parm *tp = Getattr(n,"templateparms");
Parm *p = tparms;
/* Printf(stdout,"%s\n", ParmList_str(tp)); */
/* Printf(stdout,"%s\n", ParmList_str_defaultargs(tp)); */
if (tp) {
while (p && tp) {
@ -381,13 +381,13 @@ Swig_cparse_template_expand(Node *n, String *rname, ParmList *tparms) {
}
/* -----------------------------------------------------------------------------
* cparse_template_locate()
* template_locate()
*
* Search for a template that matches name with given parameters.
* ----------------------------------------------------------------------------- */
Node *
Swig_cparse_template_locate(String *name, Parm *tparms) {
static Node *
template_locate(String *name, Parm *tparms) {
Node *n;
String *tname, *rname = 0;
Node *templ;
@ -543,7 +543,7 @@ Swig_cparse_template_locate(String *name, Parm *tparms) {
Delete(rname);
Delete(mpartials);
if ((template_debug) && (n)) {
Printf(stdout,"Node: %x\n", n);
Printf(stdout,"Node: %p\n", n);
Swig_print_node(n);
}
Delete(parms);
@ -551,4 +551,58 @@ Swig_cparse_template_locate(String *name, Parm *tparms) {
}
/* -----------------------------------------------------------------------------
* Swig_cparse_template_locate()
*
* Search for a template that matches name with given parameters.
* For templated classes finds the specialized template should there be one.
* For templated functions finds the unspecialized template even if a specialized
* template exists.
* ----------------------------------------------------------------------------- */
Node *
Swig_cparse_template_locate(String *name, Parm *tparms) {
Node *n = 0;
n = template_locate(name, tparms); /* this function does what we want for templated classes */
if (n) {
int isclass = 0;
assert(Strcmp(nodeType(n),"template") == 0);
isclass = (Strcmp(Getattr(n,"templatetype"),"class") == 0);
if (!isclass) {
/* If not a templated class we must have a templated function.
The template found is not necessarily the one we want when dealing with templated
functions. We don't want any specialized templated functions as they won't have
the default parameters. Lets look for the unspecialized template. Also make sure
the number of template parameters is correct as it is possible to overload a
templated function with different numbers of template parameters. */
if (template_debug) {
Printf(stdout," Not a templated class, seeking most appropriate templated function\n");
}
n = Swig_symbol_clookup_local(name,0);
while (n) {
Parm *tparmsfound = Getattr(n,"templateparms");
if (ParmList_len(tparms) == ParmList_len(tparmsfound)) {
/* successful match */
break;
}
/* repeat until we find a match with correct number of templated parameters */
n = Getattr(n,"sym:nextSibling");
}
if (!n) {
Swig_error(cparse_file, cparse_line, "Template '%s' undefined.\n", name);
}
if ((template_debug) && (n)) {
Printf(stdout,"Templated function found: %p\n", n);
Swig_print_node(n);
}
}
}
return n;
}