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swig/SWIG/Source/Swig/symbol.c
Marcelo Matus eb4f07711e fix seg fault with simple typedef struct 
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@7651 626c5289-ae23-0410-ae9c-e8d60b6d4f22
2005-10-14 13:36:12 +00:00

1827 lines
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/* -----------------------------------------------------------------------------
* symbol.c
*
* This file implements the SWIG symbol table. See details below.
*
* Author(s) : David Beazley (beazley@cs.uchicago.edu)
*
* Copyright (C) 1999-2000. The University of Chicago
* See the file LICENSE for information on usage and redistribution.
* ----------------------------------------------------------------------------- */
char cvsroot_symbol_c[] = "$Header$";
#include "swig.h"
#include "swigwarn.h"
#include <ctype.h>
/* #define SWIG_DEBUG*/
/* -----------------------------------------------------------------------------
* Synopsis
*
* This module provides symbol table management for all of SWIG. In previous
* releases, the management of symbols was rather haphazard. This module tries
* to correct that.
*
* All symbols are associated with simple identifiers. For example, here are some
* declarations that generate symbol table entries:
*
* decl symbol
* -------------- ------------
* void foo(int); foo
* int x; x
* typedef int *blah; blah
*
* Associated with each symbol is a Hash table that can contain any set of
* attributes that make sense for that object. For example:
*
* typedef int *blah; ----> "name" : 'blah'
* "type" : 'int'
* "decl" : 'p.'
* "storage" : 'typedef'
*
* In some cases, the symbol table needs to manage overloaded entries. For instance,
* overloaded functions. In this case, a linked list is built. The "sym:nextSibling"
* attribute is reserved to hold a link to the next entry. For example:
*
* int foo(int); --> "name" : "foo" "name" : "foo"
* int foo(int,double); "type" : "int" "type" : "int"
* "decl" : "f(int)." "decl" : "f(int,double)."
* ... ...
* "sym:nextSibling" : --------> "sym:nextSibling": --------> ...
*
* When more than one symbol has the same name, the symbol declarator is
* used to detect duplicates. For example, in the above case, foo(int) and
* foo(int,double) are different because their "decl" attribute is different.
* However, if a third declaration "foo(int)" was made, it would generate a
* conflict (due to having a declarator that matches a previous entry).
*
* Structures and classes:
*
* C/C++ symbol tables are normally managed in a few different spaces. The
* most visible namespace is reserved for functions, variables, typedef, enum values
* and such. In C, a separate tag-space is reserved for 'struct name', 'class name',
* and 'union name' declarations. In SWIG, a single namespace is used for everything
* this means that certain incompatibilities will arise with some C programs. For instance:
*
* struct Foo {
* ...
* }
*
* int Foo(); // Error. Name clash. Works in C though
*
* Due to the unified namespace for structures, special handling is performed for
* the following:
*
* typedef struct Foo {
*
* } Foo;
*
* In this case, the symbol table contains an entry for the structure itself. The
* typedef is left out of the symbol table.
*
* Target language vs C:
*
* The symbol tables are normally managed *in the namespace of the target language*.
* This means that name-collisions can be resolved using %rename and related
* directives. A quirk of this is that sometimes the symbol tables need to
* be used for C type resolution as well. To handle this, each symbol table
* also has a C-symbol table lurking behind the scenes. This is used to locate
* symbols in the C namespace. However, this symbol table is not used for error
* reporting nor is it used for anything else during code generation.
*
* Symbol table structure:
*
* Symbol tables themselves are a special kind of node that is organized just like
* a normal parse tree node. Symbol tables are organized in a tree that can be
* traversed using the SWIG-DOM API. The following attributes names are reserved.
*
* name -- Name of the scope defined by the symbol table (if any)
* This name is the C-scope name and is not affected by
* %renaming operations
* symtab -- Hash table mapping identifiers to nodes.
* csymtab -- Hash table mapping C identifiers to nodes.
*
* Reserved attributes on symbol objects:
*
* When a symbol is placed in the symbol table, the following attributes
* are set:
*
* sym:name -- Symbol name
* sym:nextSibling -- Next symbol (if overloaded)
* sym:previousSibling -- Previous symbol (if overloaded)
* sym:symtab -- Symbol table object holding the symbol
* sym:overloaded -- Set to the first symbol if overloaded
*
* These names are modeled after XML namespaces. In particular, every attribute
* pertaining to symbol table management is prefaced by the "sym:" prefix.
*
* An example dump of the parse tree showing symbol table entries for the
* following code should clarify this:
*
* namespace OuterNamespace {
* namespace InnerNamespace {
* class Class {
* };
* struct Struct {
* int Var;
* };
* }
* }
*
* +++ namespace ----------------------------------------
* | sym:name - "OuterNamespace"
* | symtab - 0xa064bf0
* | sym:symtab - 0xa041690
* | sym:overname - "__SWIG_0"
*
* +++ namespace ----------------------------------------
* | sym:name - "InnerNamespace"
* | symtab - 0xa064cc0
* | sym:symtab - 0xa064bf0
* | sym:overname - "__SWIG_0"
*
* +++ class ----------------------------------------
* | sym:name - "Class"
* | symtab - 0xa064d80
* | sym:symtab - 0xa064cc0
* | sym:overname - "__SWIG_0"
* |
* +++ class ----------------------------------------
* | sym:name - "Struct"
* | symtab - 0xa064f00
* | sym:symtab - 0xa064cc0
* | sym:overname - "__SWIG_0"
*
* +++ cdecl ----------------------------------------
* | sym:name - "Var"
* | sym:symtab - 0xa064f00
* | sym:overname - "__SWIG_0"
* |
*
*
* Each class and namespace has its own scope and thus a new symbol table (sym)
* is created. The sym attribute is only set for the first entry in the symbol
* table. The sym:symtab entry points to the symbol table in which the symbol
* exists, so for example, Struct is in the scope OuterNamespace::InnerNamespace
* so sym:symtab points to this symbol table (0xa064cc0).
*
* ----------------------------------------------------------------------------- */
static Hash *current = 0; /* The current symbol table hash */
static Hash *ccurrent = 0; /* The current c symbol table hash */
static Hash *current_symtab = 0; /* Current symbol table node */
static Hash *symtabs = 0; /* Hash of all symbol tables by fully-qualified name */
static Hash *global_scope = 0; /* Global scope */
/* common attribute keys, to avoid calling find_key all the times */
static String *k_name = 0;
static String *k_coloncolon = 0;
static String *k_decl = 0;
static String *k_cdecl = 0;
static String *k_uname = 0;
static String *k_type = 0;
static String *k_templateparms = 0;
static String *k_symtab = 0;
static String *k_csymtab = 0;
static String *k_using = 0;
static String *k_inherit = 0;
static String *k_value = 0;
static String *k_symboltable = 0;
static String *k_storage = 0;
static String *k_typedef = 0;
static String *k_symname = 0;
static String *k_symsymtab = 0;
static String *k_sympreviousSibling = 0;
static String *k_symnextSibling = 0;
static String *k_symovername = 0;
static String *k_symoverloaded = 0;
static String *k_csympreviousSibling = 0;
static String *k_csymnextSibling = 0;
static String *k_enumitem = 0;
#if 0
void
Swig_symbol_dump_symtable() {
Printf(stdout, "DUMPING SYMTABLE start =======================================\n");
{
Hash* cst = Getattr(current_symtab, "csymtab");
Swig_print_tree(cst);
/*
Swig_print_tree(Getattr(cst, "NumSpace"));
*/
}
Printf(stdout, "DUMPING SYMTABLE end =======================================\n");
}
#endif
/* -----------------------------------------------------------------------------
* Swig_symbol_new()
*
* Create a new symbol table object
* ----------------------------------------------------------------------------- */
void
Swig_symbol_init() {
k_name = NewString("name");
k_coloncolon = NewString("::");
k_decl = NewString("decl");
k_cdecl = NewString("cdecl");
k_uname = NewString("uname");
k_type = NewString("type");
k_templateparms = NewString("templateparms");
k_symtab = NewString("symtab");
k_symsymtab = NewString("sym:symtab");
k_csymtab = NewString("csymtab");
k_using = NewString("using");
k_inherit = NewString("inherit");
k_value = NewString("value");
k_symboltable = NewString("symboltable");
k_storage = NewString("storage");
k_typedef = NewString("typedef");
k_symname = NewString("sym:name");
k_sympreviousSibling = NewString("sym:previousSibling");
k_symnextSibling = NewString("sym:nextSibling");
k_symovername = NewString("sym:overname");
k_symoverloaded = NewString("sym:overloaded");
k_csympreviousSibling = NewString("csym:previousSibling");
k_csymnextSibling = NewString("csym:nextSibling");
k_enumitem = NewString("enumitem");
current = NewHash();
current_symtab = NewHash();
ccurrent = NewHash();
set_nodeType(current_symtab,k_symboltable);
Setattr(current_symtab,k_symtab,current);
Setattr(current_symtab,k_csymtab, ccurrent);
/* Set the global scope */
symtabs = NewHash();
Setattr(symtabs,"",current_symtab);
global_scope = current_symtab;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_setscopename()
*
* Set the C scopename of the current symbol table.
* ----------------------------------------------------------------------------- */
void
Swig_symbol_setscopename(const String_or_char *name) {
String *qname;
assert(!Getattr(current_symtab,k_name));
Setattr(current_symtab,k_name,name);
/* Set nested scope in parent */
qname = Swig_symbol_qualifiedscopename(current_symtab);
/* Save a reference to this scope */
Setattr(symtabs,qname,current_symtab);
Delete(qname);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_getscopename()
*
* Get the C scopename of the current symbol table
* ----------------------------------------------------------------------------- */
String *
Swig_symbol_getscopename() {
return Getattr(current_symtab,k_name);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_getscope()
*
* Given a fully qualified C scopename, this function returns a symbol table
* ----------------------------------------------------------------------------- */
Symtab *
Swig_symbol_getscope(const String_or_char *name) {
if (!symtabs) return 0;
if (Strcmp(name,k_coloncolon) == 0) name = "";
return Getattr(symtabs,name);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_qualifiedscopename()
*
* Get the fully qualified C scopename of a symbol table. Note, this only pertains
* to the C/C++ scope name. It is not affected by renaming.
* ----------------------------------------------------------------------------- */
String *
Swig_symbol_qualifiedscopename(Symtab *symtab) {
String *result = 0;
Hash *parent;
String *name;
if (!symtab) symtab = current_symtab;
parent = parentNode(symtab);
if (parent) {
result = Swig_symbol_qualifiedscopename(parent);
}
name = Getattr(symtab,k_name);
if (name) {
if (!result) {
result = NewString("");
}
if (Len(result)) {
Printf(result,"::%s",name);
} else {
Printf(result,"%s",name);
}
}
return result;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_newscope()
*
* Create a new scope. Returns the newly created scope.
* ----------------------------------------------------------------------------- */
Symtab *
Swig_symbol_newscope()
{
Hash *n;
Hash *hsyms, *h;
hsyms = NewHash();
h = NewHash();
set_nodeType(h,k_symboltable);
Setattr(h,k_symtab,hsyms);
set_parentNode(h,current_symtab);
n = lastChild(current_symtab);
if (!n) {
set_firstChild(current_symtab,h);
} else {
set_nextSibling(n,h);
}
set_lastChild(current_symtab,h);
current = hsyms;
ccurrent = NewHash();
Setattr(h,k_csymtab,ccurrent);
current_symtab = h;
return current_symtab;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_setscope()
*
* Set the current scope. Returns the previous current scope.
* ----------------------------------------------------------------------------- */
Symtab *
Swig_symbol_setscope(Symtab *sym) {
Symtab *ret = current_symtab;
current_symtab = sym;
current = Getattr(sym,k_symtab);
assert(current);
ccurrent = Getattr(sym,k_csymtab);
assert(ccurrent);
return ret;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_popscope()
*
* Pop out of the current scope. Returns the popped scope and sets the
* scope to the parent scope.
* ----------------------------------------------------------------------------- */
Symtab *
Swig_symbol_popscope() {
Hash *h = current_symtab;
current_symtab = parentNode(current_symtab);
assert(current_symtab);
current = Getattr(current_symtab,k_symtab);
assert(current);
ccurrent = Getattr(current_symtab,k_csymtab);
assert(ccurrent);
return h;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_current()
*
* Return the current symbol table.
* ----------------------------------------------------------------------------- */
Symtab *
Swig_symbol_current() {
return current_symtab;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_alias()
*
* Makes an alias for a symbol in the global symbol table.
* ----------------------------------------------------------------------------- */
void
Swig_symbol_alias(String_or_char *aliasname, Symtab *s) {
String *qname = Swig_symbol_qualifiedscopename(current_symtab);
if (qname) {
Printf(qname,"::%s", aliasname);
} else {
qname = NewString(aliasname);
}
if (!Getattr(symtabs,qname)) {
Setattr(symtabs,qname,s);
}
Delete(qname);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_inherit()
*
* Inherit symbols from another scope.
* ----------------------------------------------------------------------------- */
void Swig_symbol_inherit(Symtab *s) {
int i;
List *inherit = Getattr(current_symtab,k_inherit);
if (!inherit) {
inherit = NewList();
Setattr(current_symtab,k_inherit, inherit);
}
assert(s != current_symtab);
for (i = 0; i < Len(inherit); i++) {
Node *n = Getitem(inherit,i);
if (n == s) return; /* Already inherited */
}
Append(inherit,s);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_cadd()
*
* Adds a node to the C symbol table only.
* ----------------------------------------------------------------------------- */
void
Swig_symbol_cadd(String_or_char *name, Node *n) {
Node *append = 0;
Node *cn;
/* There are a few options for weak symbols. A "weak" symbol
is any symbol that can be replaced by another symbol in the C symbol
table. An example would be a forward class declaration. A forward
class sits in the symbol table until a real class declaration comes along.
Certain symbols are marked as "sym:typename". These are important
symbols related to the C++ type-system and take precedence in the C
symbol table. An example might be code like this:
template<class T> T foo(T x);
int foo(int);
In this case, the template is marked with "sym:typename" so that it
stays in the C symbol table (so that it can be expanded using %template).
*/
if (!name) return;
if (SwigType_istemplate(name)) {
String *cname = NewString(name);
String *dname = Swig_symbol_template_deftype(cname,0);
if (Strcmp(dname,name)) {
Swig_symbol_cadd(dname, n);
}
Delete(dname);
Delete(cname);
}
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_cadd %s %x\n", name, n);
#endif
cn = Getattr(ccurrent,name);
if (cn && (Getattr(cn,"sym:typename"))) {
/* The node in the C symbol table is a typename. Do nothing */
/* We might append the symbol at the end */
append = n;
} else if (cn && (Getattr(cn,"sym:weak"))) {
/* The node in the symbol table is weak. Replace it */
Setattr(ccurrent,name, n);
} else if (cn && (Getattr(n,"sym:weak"))) {
/* The node being added is weak. Don't worry about it */
} else if (cn && (Getattr(n,"sym:typename"))) {
/* The node being added is a typename. We definitely add it */
Setattr(ccurrent,name,n);
append = cn;
} else if (cn && (Strcmp(nodeType(cn),"templateparm") == 0)) {
Swig_error(Getfile(n),Getline(n),
"Declaration of '%s' shadows template parameter,\n",
name);
Swig_error(Getfile(cn),Getline(cn),
"previous template parameter declaration '%s'.\n",
name);
return;
} else if (cn) {
append = n;
} else if (!cn) {
/* No conflict. Add the symbol */
Setattr(ccurrent,name,n);
}
/* Multiple entries in the C symbol table. We append to to the symbol table */
if (append) {
Node *fn, *pn = 0;
cn = Getattr(ccurrent,name);
fn = cn;
while (fn) {
pn = fn;
if (fn == append) {
/* already added. Bail */
return;
}
fn = Getattr(fn,k_csymnextSibling);
}
if (pn) {
Setattr(pn,k_csymnextSibling,append);
}
}
/* Special typedef handling. When a typedef node is added to the symbol table, we
might have to add a type alias. This would occur if the typedef mapped to another
scope in the system. For example:
class Foo {
};
typedef Foo OtherFoo;
In this case, OtherFoo becomes an alias for Foo. */
{
Node *td = n;
while (td && (Strcmp(nodeType(td),k_cdecl) == 0) && (checkAttribute(td,k_storage,k_typedef))) {
SwigType *type;
Node *td1;
type = Copy(Getattr(td,k_type));
SwigType_push(type,Getattr(td,k_decl));
td1 = Swig_symbol_clookup(type,0);
/* Fix patetic case #1214313:
class Foo
{
};
typedef Foo FooBar;
class CBaz
{
public:
typedef FooBar Foo;
};
ie, when Foo -> FooBar -> Foo, jump one scope up when possible.
*/
if (td1 && checkAttribute(td1,k_storage,k_typedef)) {
String *st = Getattr(td1,k_type);
String *sn = Getattr(td,k_name);
if (st && sn && (Strcmp(st, sn) == 0)) {
Symtab *sc = parentNode(current_symtab);
if (sc) td1 = Swig_symbol_clookup(type,sc);
}
}
Delete(type);
if (td1 == td) break;
td = td1;
if (td) {
Symtab *st = Getattr(td,k_symtab);
if (st) {
Swig_symbol_alias(Getattr(n,k_name),st);
break;
}
}
}
}
}
/* -----------------------------------------------------------------------------
* Swig_symbol_add()
*
* Adds a node to the symbol table. Returns the node itself if successfully
* added. Otherwise, it returns the symbol table entry of the conflicting node.
*
* Also places the symbol in a behind-the-scenes C symbol table. This is needed
* for namespace support, type resolution, and other issues.
* ----------------------------------------------------------------------------- */
Node *
Swig_symbol_add(String_or_char *symname, Node *n) {
Hash *c, *cn, *cl = 0;
SwigType *decl, *ndecl;
String *cstorage, *nstorage;
int nt = 0, ct = 0;
int pn = 0;
int u1 = 0, u2 = 0;
String *name, *overname;
/* See if the node has a name. If so, we place in the C symbol table for this
scope. We don't worry about overloading here---the primary purpose of this
is to record information for type/name resolution for later. Conflicts
in C namespaces are errors, but these will be caught by the C++ compiler
when compiling the wrapper code */
/* There are a few options for weak symbols. A "weak" symbol
is any symbol that can be replaced by another symbol in the C symbol
table. An example would be a forward class declaration. A forward
class sits in the symbol table until a real class declaration comes along.
Certain symbols are marked as "sym:typename". These are important
symbols related to the C++ type-system and take precedence in the C
symbol table. An example might be code like this:
template<class T> T foo(T x);
int foo(int);
In this case, the template is marked with "sym:typename" so that it
stays in the C symbol table (so that it can be expanded using %template).
*/
name = Getattr(n,k_name);
if (name && Len(name)) {
Swig_symbol_cadd(name,n);
}
/* No symbol name defined. We return. */
if (!symname) {
Setattr(n,k_symsymtab,current_symtab);
return n;
}
/* If node is ignored. We don't proceed any further */
if (GetFlag(n,"feature:ignore")) return n;
/* See if the symbol already exists in the table */
c = Getattr(current,symname);
/* Check for a weak symbol. A weak symbol is allowed to be in the
symbol table, but is silently overwritten by other symbols. An example
would be a forward class declaration. For instance:
class Foo;
In this case, "Foo" sits in the symbol table. However, the
definition of Foo would replace the entry if it appeared later. */
if (c && Getattr(c,"sym:weak")) {
c = 0;
}
if (c) {
/* There is a symbol table conflict. There are a few cases to consider here:
(1) A conflict between a class/enum and a typedef declaration is okay.
In this case, the symbol table entry is set to the class/enum declaration
itself, not the typedef.
(2) A conflict between namespaces is okay--namespaces are open
(3) Otherwise, overloading is only allowed for functions
*/
/* Check for namespaces */
if ((Strcmp(nodeType(n),nodeType(c)) == 0) && ((Strcmp(nodeType(n),"namespace") == 0))) {
Node *cl, *pcl = 0;
cl = c;
while (cl) {
pcl = cl;
cl = Getattr(cl,k_symnextSibling);
}
Setattr(pcl,k_symnextSibling,n);
Setattr(n,k_symsymtab, current_symtab);
Setattr(n,k_symname, symname);
Setattr(n,k_sympreviousSibling, pcl);
return n;
}
if (Getattr(n,"allows_typedef")) nt = 1;
if (Getattr(c,"allows_typedef")) ct = 1;
if (nt || ct) {
Node *td, *other;
String *s;
/* At least one of the nodes allows typedef overloading. Make sure that
both don't--this would be a conflict */
if (nt && ct) return c;
/* Figure out which node allows the typedef */
if (nt) {
td = n;
other = c;
} else {
td = c;
other = n;
}
/* Make sure the other node is a typedef */
s = Getattr(other,k_storage);
if (!s || (Strcmp(s,k_typedef))) return c; /* No. This is a conflict */
/* Hmmm. This appears to be okay. Make sure the symbol table refers to the allow_type node */
if (td != c) {
Setattr(current,symname, td);
Setattr(td,k_symsymtab, current_symtab);
Setattr(td,k_symname, symname);
}
return n;
}
decl = Getattr(c,k_decl);
ndecl = Getattr(n,k_decl);
{
String *nt1, *nt2;
nt1 = nodeType(n);
if (Strcmp(nt1,"template") == 0) nt1 = Getattr(n,"templatetype");
nt2 = nodeType(c);
if (Strcmp(nt2,"template") == 0) nt2 = Getattr(c,"templatetype");
if (Strcmp(nt1,"using") == 0) u1 = 1;
if (Strcmp(nt2,"using") == 0) u2 = 1;
if ((Strcmp(nt1,nt2) != 0) && !(u1 || u2)) return c;
}
if (!(u1 || u2)) {
if ((!SwigType_isfunction(decl)) || (!SwigType_isfunction(ndecl))) {
/* Symbol table conflict */
return c;
}
}
/* Hmmm. Declarator seems to indicate that this is a function */
/* Look at storage class to see if compatible */
cstorage = Getattr(c,k_storage);
nstorage = Getattr(n,k_storage);
/* If either one is declared as typedef, forget it. We're hosed */
if (Cmp(cstorage,k_typedef) == 0) {
return c;
}
if (Cmp(nstorage,k_typedef) == 0) {
return c;
}
/* Okay. Walk down the list of symbols and see if we get a declarator match */
{
int n_template = (Strcmp(nodeType(n),"template") == 0) && (Strcmp(Getattr(n,"templatetype"),k_cdecl) == 0);
int n_plain_cdecl = (Strcmp(nodeType(n),k_cdecl) == 0);
cn = c;
pn = 0;
while (cn) {
decl = Getattr(cn,k_decl);
if (!(u1 || u2)) {
if (Cmp(ndecl,decl) == 0) {
/* Declarator conflict */
/* Now check we don't have a non-templated function overloaded by a templated function with same params,
* eg void foo(); template<typename> void foo(); */
int cn_template = (Strcmp(nodeType(cn),"template") == 0) && (Strcmp(Getattr(cn,"templatetype"),k_cdecl) == 0);
int cn_plain_cdecl = (Strcmp(nodeType(cn),k_cdecl) == 0);
if (!((n_template && cn_plain_cdecl) || (cn_template && n_plain_cdecl))) {
/* found a conflict */
return cn;
}
}
}
cl = cn;
cn = Getattr(cn,k_symnextSibling);
pn++;
}
}
/* Well, we made it this far. Guess we can drop the symbol in place */
Setattr(n,k_symsymtab,current_symtab);
Setattr(n,k_symname,symname);
/* Printf(stdout,"%s %x\n", Getattr(n,k_symovername), current_symtab); */
assert(!Getattr(n,k_symovername));
overname = NewStringf("__SWIG_%d", pn);
Setattr(n,k_symovername, overname);
/*Printf(stdout,"%s %s %s\n", symname, Getattr(n,k_decl), Getattr(n,k_symovername)); */
Setattr(cl,k_symnextSibling,n);
Setattr(n,k_sympreviousSibling,cl);
Setattr(cl,k_symoverloaded,c);
Setattr(n,k_symoverloaded,c);
Delete(overname);
return n;
}
/* No conflict. Just add it */
Setattr(n,k_symsymtab,current_symtab);
Setattr(n,k_symname,symname);
/* Printf(stdout,"%s\n", Getattr(n,k_symovername)); */
overname = NewStringf("__SWIG_%d", pn);
Setattr(n,k_symovername, overname);
Delete(overname);
/* Printf(stdout,"%s %s %s\n", symname, Getattr(n,k_decl), Getattr(n,k_symovername)); */
Setattr(current,symname,n);
return n;
}
/* -----------------------------------------------------------------------------
* symbol_lookup()
*
* Internal function to handle fully qualified symbol table lookups. This
* works from the symbol table supplied in symtab and unwinds its way out
* towards the global scope.
*
* This function operates in the C namespace, not the target namespace.
*
* The check function is an optional callback that can be used to verify a particular
* symbol match. This is only used in some of the more exotic parts of SWIG. For instance,
* verifying that a class hierarchy implements all pure virtual methods.
* ----------------------------------------------------------------------------- */
static Node *
symbol_lookup(String_or_char *name, Symtab *symtab, int (*check)(Node *n)) {
Node *n;
List *inherit;
Hash *sym = Getattr(symtab,k_csymtab);
if (Getmark(symtab)) return 0;
Setmark(symtab,1);
n = Getattr(sym,name);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_look %s %x %x %s\n", name, n, symtab, Getattr(symtab,k_name));
#endif
if (n) {
/* if a check-function is defined. Call it to determine a match */
if (check) {
int c = check(n);
if (c == 1) {
Setmark(symtab,0);
return n;
}
if (c < 0) {
/* Terminate the search right away */
Setmark(symtab,0);
return 0;
}
} else {
Setmark(symtab,0);
return n;
}
}
if (!n && SwigType_istemplate(name)) {
String *dname = 0;
Setmark(symtab,0);
dname = Swig_symbol_template_deftype(name,symtab);
if (Strcmp(name,dname)) {
n = symbol_lookup(dname, symtab, check);
}
Delete(dname);
if (n) return n;
}
inherit = Getattr(symtab,k_inherit);
if (inherit) {
int i,len;
len = Len(inherit);
for (i = 0; i < len; i++) {
n = symbol_lookup(name, Getitem(inherit,i),check);
if (n) {
Setmark(symtab,0);
return n;
}
}
}
Setmark(symtab,0);
return 0;
}
/* -----------------------------------------------------------------------------
* symbol_lookup_qualified()
* ----------------------------------------------------------------------------- */
static Node *
symbol_lookup_qualified(String_or_char *name, Symtab *symtab, String *prefix, int local, int (*checkfunc)(Node *n)) {
/* This is a little funky, we search by fully qualified names */
if (!symtab) return 0;
if (!prefix) {
Node *n;
String *bname;
String *prefix;
bname = Swig_scopename_last(name);
prefix = Swig_scopename_prefix(name);
n = symbol_lookup_qualified(bname,symtab,prefix,local,checkfunc);
Delete(bname);
Delete(prefix);
return n;
} else {
String *qname;
Symtab *st;
Node *n = 0;
/* Make qualified name of current scope */
qname = Swig_symbol_qualifiedscopename(symtab);
if (Len(qname)) {
if (Len(prefix)) {
Append(qname,k_coloncolon);
Append(qname,prefix);
}
} else {
Delete(qname);
qname = NewString(prefix);
}
st = Getattr(symtabs,qname);
/* Found a scope match */
if (st) {
if (!name) return st;
n = symbol_lookup(name, st,checkfunc);
}
Delete(qname);
if (!n) {
if (!local) {
Node *pn = parentNode(symtab);
if (pn) n = symbol_lookup_qualified(name,pn, prefix, local,checkfunc);
} else {
n = 0;
}
}
return n;
}
}
/* -----------------------------------------------------------------------------
* Swig_symbol_clookup()
*
* Look up a symbol in the symbol table. This uses the C name, not scripting
* names. Note: If we come across a using a directive, we follow it to
* to get the real node.
* ----------------------------------------------------------------------------- */
Node *
Swig_symbol_clookup(String_or_char *name, Symtab *n) {
Hash *hsym = 0;
Node *s = 0;
if (!n) {
hsym = current_symtab;
} else {
if (Strcmp(nodeType(n),k_symboltable)) {
n = Getattr(n,k_symsymtab);
}
assert(n);
if (n) {
hsym = n;
}
}
if (Swig_scopename_check(name)) {
if (Strncmp(name,k_coloncolon,2) == 0) {
String *nname = NewString(Char(name)+2);
if (Swig_scopename_check(nname)) {
s = symbol_lookup_qualified(nname,global_scope,0,0,0);
}
Delete(nname);
} else {
String *prefix = Swig_scopename_prefix(name);
if (prefix) {
s = symbol_lookup_qualified(name,hsym,0,0,0);
Delete(prefix);
if (!s) {
return 0;
}
}
}
}
if (!s) {
while (hsym) {
s = symbol_lookup(name,hsym,0);
if (s) break;
hsym = parentNode(hsym);
if (!hsym) break;
}
}
if (!s) {
return 0;
}
/* Check if s is a 'using' node */
while (s && Strcmp(nodeType(s),k_using) == 0) {
String *uname = Getattr(s,k_uname);
Symtab *un = Getattr(s,k_symsymtab);
Node *ss = (Strcmp(name,uname) || (un != n)) ?
Swig_symbol_clookup(uname, un) : 0; /* avoid infinity loop */
if (!ss) {
Swig_warning(WARN_PARSE_USING_UNDEF, Getfile(s), Getline(s), "Nothing known about '%s'.\n", Getattr(s,k_uname));
}
s = ss;
}
return s;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_clookup_check()
*
* This function is identical to Swig_symbol_clookup() except that it
* accepts a callback function that is invoked to determine a symbol match.
* The purpose of this function is to support complicated algorithms that need
* to examine multiple definitions of the same symbol that might appear in an
* inheritance hierarchy.
* ----------------------------------------------------------------------------- */
Node *
Swig_symbol_clookup_check(String_or_char *name, Symtab *n, int (*checkfunc)(Node *n)) {
Hash *hsym = 0;
Node *s = 0;
if (!n) {
hsym = current_symtab;
} else {
if (Strcmp(nodeType(n),k_symboltable)) {
n = Getattr(n,k_symsymtab);
}
assert(n);
if (n) {
hsym = n;
}
}
if (Swig_scopename_check(name)) {
if (Strncmp(name,k_coloncolon,2) == 0) {
String *nname = NewString(Char(name)+2);
if (Swig_scopename_check(nname)) {
s = symbol_lookup_qualified(nname,global_scope,0,0,checkfunc);
}
Delete(nname);
} else {
String *prefix = Swig_scopename_prefix(name);
if (prefix) {
s = symbol_lookup_qualified(name,hsym,0,0,checkfunc);
Delete(prefix);
if (!s) {
return 0;
}
}
}
}
if (!s) {
while (hsym) {
s = symbol_lookup(name,hsym,checkfunc);
if (s) break;
hsym = parentNode(hsym);
if (!hsym) break;
}
}
if (!s) {
return 0;
}
/* Check if s is a 'using' node */
while (s && Strcmp(nodeType(s),k_using) == 0) {
Node *ss;
ss = Swig_symbol_clookup(Getattr(s,k_uname), Getattr(s,k_symsymtab));
if (!ss && !checkfunc) {
Swig_warning(WARN_PARSE_USING_UNDEF, Getfile(s), Getline(s), "Nothing known about '%s'.\n", Getattr(s,k_uname));
}
s = ss;
}
return s;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_clookup_local()
* ----------------------------------------------------------------------------- */
Node *
Swig_symbol_clookup_local(String_or_char *name, Symtab *n) {
Hash *h, *hsym;
Node *s = 0;
if (!n) {
hsym = current_symtab;
h = ccurrent;
} else {
if (Strcmp(nodeType(n),k_symboltable)) {
n = Getattr(n,k_symsymtab);
}
assert(n);
hsym = n;
h = Getattr(n,k_csymtab);
}
if (Swig_scopename_check(name)) {
if (Strncmp(name,k_coloncolon,2) == 0) {
String *nname = NewString(Char(name)+2);
if (Swig_scopename_check(nname)) {
s = symbol_lookup_qualified(nname,global_scope,0,0,0);
}
Delete(nname);
} else {
s = symbol_lookup_qualified(name,hsym,0,0,0);
}
}
if (!s) {
s = symbol_lookup(name,hsym,0);
}
if (!s) return 0;
/* Check if s is a 'using' node */
while (s && Strcmp(nodeType(s),k_using) == 0) {
Node *ss = Swig_symbol_clookup_local(Getattr(s,k_uname), Getattr(s,k_symsymtab));
if (!ss) {
Swig_warning(WARN_PARSE_USING_UNDEF, Getfile(s), Getline(s), "Nothing known about '%s'.\n", Getattr(s,k_uname));
}
s = ss;
}
return s;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_clookup_local_check()
* ----------------------------------------------------------------------------- */
Node *
Swig_symbol_clookup_local_check(String_or_char *name, Symtab *n, int (*checkfunc)(Node *)) {
Hash *h, *hsym;
Node *s = 0;
if (!n) {
hsym = current_symtab;
h = ccurrent;
} else {
if (Strcmp(nodeType(n),k_symboltable)) {
n = Getattr(n,k_symsymtab);
}
assert(n);
hsym = n;
h = Getattr(n,k_csymtab);
}
if (Swig_scopename_check(name)) {
if (Strncmp(name,k_coloncolon,2) == 0) {
String *nname = NewString(Char(name)+2);
if (Swig_scopename_check(nname)) {
s = symbol_lookup_qualified(nname,global_scope,0,0,checkfunc);
}
Delete(nname);
} else {
s = symbol_lookup_qualified(name,hsym,0,0,checkfunc);
}
}
if (!s) {
s = symbol_lookup(name,hsym,checkfunc);
}
if (!s) return 0;
/* Check if s is a 'using' node */
while (s && Strcmp(nodeType(s),k_using) == 0) {
Node *ss = Swig_symbol_clookup_local_check(Getattr(s,k_uname), Getattr(s,k_symsymtab),checkfunc);
if (!ss && !checkfunc) {
Swig_warning(WARN_PARSE_USING_UNDEF, Getfile(s), Getline(s), "Nothing known about '%s'.\n", Getattr(s,k_uname));
}
s = ss;
}
return s;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_cscope()
*
* Look up a scope name.
* ----------------------------------------------------------------------------- */
Symtab *
Swig_symbol_cscope(String_or_char *name, Symtab *symtab) {
if (Strncmp(name,k_coloncolon,2) == 0) return symbol_lookup_qualified(0, global_scope, name, 0,0);
return symbol_lookup_qualified(0,symtab,name,0,0);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_remove()
*
* Remove a symbol. If the symbol is an overloaded function and the symbol removed
* is not the last in the list of overloaded functions, then the overloaded
* names (sym:overname attribute) are changed to start from zero, eg __SWIG_0.
* ----------------------------------------------------------------------------- */
void
Swig_symbol_remove(Node *n) {
Symtab *symtab;
String *symname;
String *overname;
Node *symprev;
Node *symnext;
Node *fixovername = 0;
symtab = Getattr(n,k_symsymtab); /* Get symbol table object */
symtab = Getattr(symtab,k_symtab); /* Get actual hash table of symbols */
symname = Getattr(n,k_symname);
symprev = Getattr(n,k_sympreviousSibling);
symnext = Getattr(n,k_symnextSibling);
/* If previous symbol, just fix the links */
if (symprev) {
if (symnext) {
Setattr(symprev,k_symnextSibling,symnext);
fixovername = symprev; /* fix as symbol to remove is somewhere in the middle of the linked list */
} else {
Delattr(symprev,k_symnextSibling);
}
} else {
/* If no previous symbol, see if there is a next symbol */
if (symnext) {
Setattr(symtab,symname,symnext);
fixovername = symnext; /* fix as symbol to remove is at head of linked list */
} else {
Delattr(symtab,symname);
}
}
if (symnext) {
if (symprev) {
Setattr(symnext,k_sympreviousSibling,symprev);
} else {
Delattr(symnext,k_sympreviousSibling);
}
}
Delattr(n,k_symsymtab);
Delattr(n,k_sympreviousSibling);
Delattr(n,k_symnextSibling);
Delattr(n,k_csymnextSibling);
Delattr(n,k_symovername);
Delattr(n,k_csympreviousSibling);
Delattr(n,k_symoverloaded);
n = 0;
if (fixovername) {
Node *nn = fixovername;
Node *head = fixovername;
int pn = 0;
/* find head of linked list */
while (nn) {
head = nn;
nn = Getattr(nn, k_sympreviousSibling);
}
/* adjust all the sym:overname strings to start from 0 and increment by one */
nn = head;
while (nn) {
assert(Getattr(nn,k_symovername));
Delattr(nn,k_symovername);
overname = NewStringf("__SWIG_%d", pn);
Setattr(nn,k_symovername, overname);
Delete(overname);
pn++;
nn = Getattr(nn,k_symnextSibling);
}
}
}
/* -----------------------------------------------------------------------------
* Swig_symbol_qualified()
*
* Return the qualified name of a symbol
* ----------------------------------------------------------------------------- */
String *
Swig_symbol_qualified(Node *n) {
Hash *symtab;
if (Strcmp(nodeType(n),k_symboltable) == 0) {
symtab = n;
} else {
symtab = Getattr(n,k_symsymtab);
}
if (!symtab) return NewString("");
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_qscope %s %x %s\n", Getattr(n,k_name), symtab,Getattr(symtab,k_name));
#endif
return Swig_symbol_qualifiedscopename(symtab);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_isoverloaded()
*
* Check if a symbol is overloaded. Returns the first symbol if so.
* ----------------------------------------------------------------------------- */
Node *
Swig_symbol_isoverloaded(Node *n) {
return Getattr(n,k_symoverloaded);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_type_qualify()
*
* Create a fully qualified type name
* ----------------------------------------------------------------------------- */
static int no_constructor(Node *n) {
SwigType *type = nodeType(n);
#ifdef SWIG_DEBUG
Printf(stderr,"node type %s\n", Getattr(n,k_name), type);
#endif
return type ? (Strcmp(type,"constructor") != 0): 1;
}
static SwigType *
Swig_symbol_template_qualify(const SwigType *e, Symtab *st) {
String *tprefix, *tsuffix;
SwigType *qprefix;
List *targs;
Node *tempn;
Symtab *tscope;
Iterator ti;
tprefix = SwigType_templateprefix(e);
tsuffix = SwigType_templatesuffix(e);
qprefix = Swig_symbol_type_qualify(tprefix,st);
targs = SwigType_parmlist(e);
tempn = Swig_symbol_clookup_local(tprefix,st);
tscope = tempn ? Getattr(tempn,"sym:symtab") : 0;
Printf(qprefix,"<(");
for (ti = First(targs); ti.item;) {
String *vparm;
String *qparm = Swig_symbol_type_qualify(ti.item,st);
if (tscope && (tscope != st)) {
String *ty = Swig_symbol_type_qualify(qparm,tscope);
Delete(qparm);
qparm = ty;
}
vparm = Swig_symbol_template_param_eval(qparm, st);
Append(qprefix,vparm);
ti = Next(ti);
if (ti.item) {
Putc(',',qprefix);
}
Delete(qparm);
Delete(vparm);
}
Append(qprefix,")>");
Append(qprefix,tsuffix);
Delete(tprefix);
Delete(tsuffix);
Delete(targs);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_temp_qual %s %s\n", e, qprefix);
#endif
return qprefix;
}
SwigType *
Swig_symbol_type_qualify(const SwigType *t, Symtab *st) {
List *elements;
String *result;
int i,len;
result = NewString("");
elements = SwigType_split(t);
len = Len(elements);
for (i = 0; i < len; i++) {
String *e = Getitem(elements,i);
if (SwigType_issimple(e)) {
Node *n = Swig_symbol_clookup_check(e,st,no_constructor);
if (n) {
String *name = Getattr(n,k_name);
Clear(e);
Append(e,name);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_qual_ei %d %s %s %x\n", i, name, e, st);
#endif
if (!Swig_scopename_check(name)) {
String *qname = Swig_symbol_qualified(n);
if (Len(qname)) {
Insert(e,0,k_coloncolon);
Insert(e,0,qname);
}
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_qual_sc %d %s %s %x\n", i, qname, e, st);
#endif
Delete(qname);
}
} else if (SwigType_istemplate(e)) {
SwigType *ty = Swig_symbol_template_qualify(e,st);
Clear(e);
Append(e,ty);
Delete(ty);
}
if (Strncmp(e,k_coloncolon,2) == 0) {
Delitem(e,0);
Delitem(e,0);
}
Append(result,e);
} else if (SwigType_isfunction(e)) {
List *parms = SwigType_parmlist(e);
String *s = NewString("f(");
Iterator pi = First(parms);
while (pi.item) {
String *pf = Swig_symbol_type_qualify(pi.item,st);
Append(s,pf);
pi = Next(pi);
if (pi.item) {
Append(s,",");
}
Delete(pf);
}
Append(s,").");
Append(result,s);
Delete(parms);
Delete(s);
} else {
Append(result,e);
}
}
Delete(elements);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_qualify %s %s %x %s\n", t, result, st, st ?Getattr(st,k_name): 0);
#endif
return result;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_typedef_reduce()
*
* Chase a typedef through symbol tables looking for a match.
* ----------------------------------------------------------------------------- */
static
SwigType *Swig_symbol_template_reduce(SwigType *qt, Symtab *ntab)
{
Iterator pi;
Parm *p;
List *parms = SwigType_parmlist(qt);
String *tprefix = SwigType_templateprefix(qt);
String *tsuffix = SwigType_templatesuffix(qt);
String *qprefix = SwigType_typedef_qualified(tprefix);
Printv(qprefix,"<(",NIL);
pi = First(parms);
while ((p = pi.item)) {
String *np;
String *tp = Swig_symbol_typedef_reduce(p, ntab);
String *qp = Swig_symbol_type_qualify(tp, ntab);
Node *n = Swig_symbol_clookup(qp,ntab);
if (n) {
String *qual = Swig_symbol_qualified(n);
np = Copy(Getattr(n,k_name));
tp = np;
if (Len(qual)) {
Insert(np,0,k_coloncolon);
Insert(np,0,qual);
}
Delete(qual);
} else {
np = qp;
}
Append(qprefix,np);
pi= Next(pi);
if (pi.item) {
Append(qprefix,",");
}
Delete(qp);
Delete(tp);
}
Append(qprefix,")>");
Insert(tsuffix, 0, qprefix);
Delete(parms);
Delete(tprefix);
Delete(qprefix);
return tsuffix;
}
SwigType *Swig_symbol_typedef_reduce(SwigType *ty, Symtab *tab) {
SwigType *prefix, *base;
Node *n;
base = SwigType_base(ty);
prefix = SwigType_prefix(ty);
n = Swig_symbol_clookup(base,tab);
if (!n) {
Delete(base);
if (SwigType_istemplate(ty)) {
SwigType *qt = Swig_symbol_template_reduce(ty,tab);
Append(prefix,qt);
Delete(qt);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_reduce %s %s\n", ty, prefix);
#endif
return prefix;
} else {
Delete(prefix);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_reduce %s %s\n", ty, ty);
#endif
return Copy(ty);
}
}
if (Strcmp(nodeType(n),k_using) == 0) {
String *uname = Getattr(n,k_uname);
if (uname) {
n = Swig_symbol_clookup(base,Getattr(n,k_symsymtab));
if (!n) {
Delete(base);
Delete(prefix);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_reduce %s %s\n", ty, ty);
#endif
return Copy(ty);
}
}
}
if (Strcmp(nodeType(n),k_cdecl) == 0) {
String *storage = Getattr(n,k_storage);
if (storage && (Strcmp(storage,k_typedef) == 0)) {
SwigType *decl;
SwigType *rt;
SwigType *qt;
Symtab *ntab;
SwigType *nt = Copy(Getattr(n,k_type));
/* Fix for case 'typedef struct Hello hello;' */
{
const char* dclass[3] = {"struct ", "union ", "class "};
int i;
char * c = Char(nt);
for (i=0; i<3; i++) {
if (strstr(c, dclass[i]) == c) {
Replace(nt,dclass[i],"", DOH_REPLACE_FIRST);
}
}
}
decl = Getattr(n,k_decl);
if (decl) {
SwigType_push(nt,decl);
}
SwigType_push(nt,prefix);
Delete(base);
Delete(prefix);
ntab = Getattr(n,k_symsymtab);
rt = Swig_symbol_typedef_reduce(nt, ntab);
qt = Swig_symbol_type_qualify(rt, ntab);
if (SwigType_istemplate(qt)) {
SwigType *qtr = Swig_symbol_template_reduce(qt,ntab);
Delete(qt);
qt = qtr;
}
Delete(nt);
Delete(rt);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_reduce %s %s\n", qt, ty);
#endif
return qt;
}
}
Delete(base);
Delete(prefix);
#ifdef SWIG_DEBUG
Printf(stderr,"symbol_reduce %s %s\n", ty, ty);
#endif
return Copy(ty);
}
/* -----------------------------------------------------------------------------
* Swig_symbol_string_qualify()
*
* This function takes a string and looks for identifiers. Identifiers are
* then qualified according to scope rules. This function is used in a number
* of settings including expression evaluation, scoping of conversion operators,
* and so forth.
* ----------------------------------------------------------------------------- */
String *
Swig_symbol_string_qualify(String *s, Symtab *st) {
char *c;
String *id, *r;
int have_id = 0;
id = NewString("");
r = NewString("");
c = Char(s);
while (*c) {
if (isalpha((int)*c) || (*c == '_') || (*c == ':')) {
Putc(*c,id);
have_id = 1;
} else {
if (have_id) {
String *qid = Swig_symbol_type_qualify(id,st);
Append(r,qid);
Clear(id);
Delete(qid);
have_id = 0;
}
Putc(*c,r);
}
c++;
}
if (have_id) {
String *qid = Swig_symbol_type_qualify(id,st);
Append(r,qid);
Delete(qid);
}
Delete(id);
return r;
}
/* -----------------------------------------------------------------------------
* Swig_symbol_template_defargs()
*
* Apply default arg from generic template default args
* ----------------------------------------------------------------------------- */
void
Swig_symbol_template_defargs(Parm *parms, Parm *targs, Symtab *tscope, Symtab *tsdecl) {
if (Len(parms) < Len(targs)) {
Parm *lp = parms;
Parm *p = lp;
Parm *tp = targs;
while(p && tp) {
p = nextSibling(p);
tp = nextSibling(tp);
if (p) lp = p;
}
while (tp) {
String *value = Getattr(tp,k_value);
if (value) {
Parm *cp;
Parm *ta = targs;
Parm *p = parms;
SwigType *nt = Swig_symbol_string_qualify(value,tsdecl);
SwigType *ntq = 0;
#ifdef SWIG_DEBUG
Printf(stderr,"value %s %s %s\n",value, nt,tsdecl ? Getattr(tsdecl,k_name) : tsdecl);
#endif
while(p && ta) {
String *name = Getattr(ta,k_name);
String *pvalue = Getattr(p,k_value);
String *value = pvalue ? pvalue : Getattr(p,k_type);
String *ttq = Swig_symbol_type_qualify(value,tscope);
/* value = SwigType_typedef_resolve_all(value);*/
Replaceid(nt, name, ttq);
p = nextSibling(p);
ta = nextSibling(ta);
Delete(ttq);
}
ntq = Swig_symbol_type_qualify(nt,tsdecl);
if (SwigType_istemplate(ntq)) {
String *ty = Swig_symbol_template_deftype(ntq, tscope);
Delete(ntq);
ntq = ty;
}
/* Printf(stderr,"value %s %s %s\n",value,ntr,ntq);*/
cp = NewParm(ntq,0);
set_nextSibling(lp,cp);
lp = cp;
tp = nextSibling(tp);
Delete(cp);
Delete(nt);
Delete(ntq);
} else {
tp = 0;
}
}
}
}
/* -----------------------------------------------------------------------------
* Swig_symbol_template_deftype()
*
* Apply default args to generic template type
* ----------------------------------------------------------------------------- */
SwigType*
Swig_symbol_template_deftype(const SwigType *type, Symtab *tscope) {
String *result = NewString("");
List *elements = SwigType_split(type);
int len = Len(elements);
int i;
#ifdef SWIG_DEBUG
Printf(stderr,"finding deftype %s\n", type);
#endif
for (i = 0; i < len; i++) {
String *e = Getitem(elements,i);
if (SwigType_isfunction(e)) {
String *s = NewString("f(");
List *parms = SwigType_parmlist(e);
Iterator pi = First(parms);
while (pi.item) {
String *pf = SwigType_istemplate(e) ?
Swig_symbol_template_deftype(pi.item,tscope)
: Swig_symbol_type_qualify(pi.item,tscope);
Append(s,pf);
pi = Next(pi);
if (pi.item) {
Append(s,",");
}
Delete(pf);
}
Append(s,").");
Append(result,s);
Delete(s);
Delete(parms);
} else if (SwigType_istemplate(e)) {
String *prefix = SwigType_prefix(e);
String *base = SwigType_base(e);
String *tprefix = SwigType_templateprefix(base);
String *targs = SwigType_templateargs(base);
String *tsuffix = SwigType_templatesuffix(base);
ParmList *tparms = SwigType_function_parms(targs);
Node *tempn = Swig_symbol_clookup_local(tprefix,tscope);
#ifdef SWIG_DEBUG
Printf(stderr,"deftype type %s \n", e);
#endif
if (tempn) {
ParmList *tnargs = Getattr(tempn,k_templateparms);
Parm *p;
Symtab *tsdecl = Getattr(tempn,k_symsymtab);
#ifdef SWIG_DEBUG
Printf(stderr,"deftype type %s %s %s\n", tprefix, targs,
tsuffix);
#endif
Append(tprefix,"<(");
Swig_symbol_template_defargs(tparms, tnargs,tscope,tsdecl);
p = tparms;
tscope = Getattr(tempn,"sym:symtab");
while (p) {
SwigType *ptype = Getattr(p,k_type);
SwigType *ttr = ptype ? ptype : Getattr(p,k_value);
SwigType *ttf = Swig_symbol_type_qualify(ttr,tscope);
SwigType *ttq = Swig_symbol_template_param_eval(ttf,tscope);
#ifdef SWIG_DEBUG
Printf(stderr,"arg type %s\n", ttq);
#endif
if (SwigType_istemplate(ttq)) {
SwigType *ttd = Swig_symbol_template_deftype(ttq, tscope);
Delete(ttq);
ttq = ttd;
#ifdef SWIG_DEBUG
Printf(stderr,"arg deftype %s\n", ttq);
#endif
}
Append(tprefix,ttq);
p = nextSibling(p);
if (p) Putc(',',tprefix);
Delete(ttf);
Delete(ttq);
}
Append(tprefix,")>");
Append(tprefix,tsuffix);
Append(prefix,tprefix);
#ifdef SWIG_DEBUG
Printf(stderr,"deftype %s %s \n", type, tprefix);
#endif
Append(result,prefix);
} else {
Append(result,e);
}
Delete(prefix);
Delete(base);
Delete(tprefix);
Delete(tsuffix);
Delete(targs);
Delete(tparms);
} else {
Append(result,e);
}
}
Delete(elements);
return result;
}
SwigType *Swig_symbol_template_param_eval(const SwigType *p, Symtab *symtab)
{
String *value = Copy(p);
Node *lastnode = 0;
while (1) {
Node *n = Swig_symbol_clookup(value,symtab);
if (n == lastnode) break;
lastnode = n;
if (n) {
if (Strcmp(nodeType(n),k_enumitem) == 0) {
/* An enum item. Generate a fully qualified name */
String *qn = Swig_symbol_qualified(n);
if (Len(qn)) {
Append(qn,k_coloncolon);
Append(qn,Getattr(n,k_name));
Delete(value);
value = qn;
continue;
} else {
Delete(qn);
break;
}
} else if ((Strcmp(nodeType(n),k_cdecl) == 0) && (Getattr(n,k_value))) {
Delete(value);
value = Copy(Getattr(n,k_value));
continue;
}
}
break;
}
return value;
}
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