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using 2-level caching as suggested by @wsfulton

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This commit is contained in:
Frank Schlimbach 2017-01-09 09:46:33 -06:00
commit be92482e27
2 changed files with 40 additions and 20 deletions
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23
Examples/test-suite/template_default_cache.i
View file

@ -2,17 +2,22 @@
%import "amodel.i"
%{ // C++ code to make this compilable
%inline %{
namespace d {
template< typename T > class d {};
}
namespace ns__a {
namespace iface1 {
class Model {};
typedef d::d<Model> ModelPtr;
}
using iface1::ModelPtr;
%}
%ignore ns__a::iface1::Model;
%inline %{
namespace ns__a {
namespace iface1 {
class Model {};
typedef d::d<Model> ModelPtr;
}
using iface1::ModelPtr;
}
%}
%inline %{
@ -23,6 +28,10 @@ namespace ns__b {
ns__a::ModelPtr foo() { return ns__a::ModelPtr(); };
};
typedef d::d<Model> ModelPtr;
ns__a::ModelPtr get_mp_a() { return ns__a::ModelPtr(); }
ModelPtr get_mp_b() { return ModelPtr(); }
}
}
%}
%template(AModelPtr) d::d<ns__a::iface1::Model>;
%template(BModelPtr) d::d<ns__b::iface1::Model>;

37
Source/Swig/symbol.c
View file

@ -1906,26 +1906,37 @@ SwigType *Swig_symbol_template_deftype(const SwigType *type, Symtab *tscope) {
int len = Len(elements);
int i;
#ifdef SWIG_TEMPLATE_DEFTYPE_CACHE
static Hash *deftype_cache = 0;
static Hash *s_cache = 0;
Hash *scope_cache;
/* The lookup depends on the current scope and potential namespace qualification.
Looking up x in namespace y is not the same as looking up x::y in outer scope.
-> we contruct an "artificial" key. */
String *scopetype = tscope
? NewStringf("%s..%s::%s", Swig_symbol_qualifiedscopename(tscope), Getattr(tscope, "name"), type)
: NewStringf("%s..%s::%s", Swig_symbol_qualifiedscopename(current_symtab), Swig_symbol_getscopename(), type);
if (!deftype_cache) {
deftype_cache = NewHash();
-> we use a 2-level hash: first scope and then symbol. */
String *scope_name = tscope
? Swig_symbol_qualifiedscopename(tscope)
: Swig_symbol_qualifiedscopename(current_symtab);
String *type_name = tscope
? NewStringf("%s::%s", Getattr(tscope, "name"), type)
: NewStringf("%s::%s", Swig_symbol_getscopename(), type);
if (!scope_name) scope_name = NewString("::");
if (!s_cache) {
s_cache = NewHash();
}
if (scopetype) {
String *cres = Getattr(deftype_cache, scopetype);
scope_cache = Getattr(s_cache, scope_name);
if (scope_cache) {
String *cres = Getattr(scope_cache, type_name);
if (cres) {
Append(result, cres);
#ifdef SWIG_DEBUG
Printf(stderr, "cached deftype %s(%s) -> %s\n", type, scopetype, result);
Printf(stderr, "cached deftype %s(%s) -> %s\n", type, scope_name, result);
#endif
Delete(scopetype);
Delete(type_name);
Delete(scope_name);
return result;
}
} else {
scope_cache = NewHash();
Setattr(s_cache, scope_name, scope_cache);
Delete(scope_name);
}
#endif
@ -2025,8 +2036,8 @@ SwigType *Swig_symbol_template_deftype(const SwigType *type, Symtab *tscope) {
}
Delete(elements);
#ifdef SWIG_TEMPLATE_DEFTYPE_CACHE
Setattr(deftype_cache, scopetype, result);
Delete(scopetype);
Setattr(scope_cache, type_name, result);
Delete(type_name);
#endif
return result;