void inferApplyArgTypesZ(TemplateDeclaration *tstart, Parameters *arguments)
{
for (TemplateDeclaration *td = tstart; td; td = td->overnext)
{
if (!td->scope)
{
error("forward reference to template %s", td->toChars());
return;
}
if (!td->onemember || !td->onemember->toAlias()->isFuncDeclaration())
{
error("is not a function template");
return;
}
if (!td->parameters || td->parameters->dim != 1)
continue;
TemplateParameter *tp = td->parameters->tdata()[0];
TemplateAliasParameter *tap = tp->isTemplateAliasParameter();
if (!tap || !tap->specType || tap->specType->ty != Tfunction)
continue;
TypeFunction *tf = (TypeFunction *)tap->specType;
if (inferApplyArgTypesY(tf, arguments) == 0) // found it
return;
}
}
Type *
TypeCheck::visit(TemplateParameterList *ast)
{
FUNCLOG;
List<TemplateParameter*>::iterator it = ast->params.begin();
while (it != ast->params.end()) {
TemplateParameter *param = *it;
param->accept(this);
++it;
}
return NULL;
}
void source_name(Dsymbol *s)
{
char *name = s->ident->toChars();
TemplateInstance *ti = s->isTemplateInstance();
if (ti)
{
if (!substitute(ti->tempdecl))
{
store(ti->tempdecl);
name = ti->name->toChars();
buf.printf("%d%s", strlen(name), name);
}
buf.writeByte('I');
bool is_var_arg = false;
for (size_t i = 0; i < ti->tiargs->dim; i++)
{
RootObject *o = (RootObject *)(*ti->tiargs)[i];
TemplateParameter *tp = NULL;
TemplateValueParameter *tv = NULL;
TemplateTupleParameter *tt = NULL;
if (!is_var_arg)
{
TemplateDeclaration *td = ti->tempdecl->isTemplateDeclaration();
tp = (*td->parameters)[i];
tv = tp->isTemplateValueParameter();
tt = tp->isTemplateTupleParameter();
}
/*
* <template-arg> ::= <type> # type or template
* ::= <expr-primary> # simple expressions
*/
if (tt)
{
buf.writeByte('I');
is_var_arg = true;
tp = NULL;
}
if (tv)
{
// <expr-primary> ::= L <type> <value number> E # integer literal
if (tv->valType->isintegral())
{
Expression* e = isExpression(o);
assert(e);
buf.writeByte('L');
tv->valType->accept(this);
if (tv->valType->isunsigned())
{
buf.printf("%llu", e->toUInteger());
}
else
{
dinteger_t val = e->toInteger();
if (val < 0)
{
val = -val;
buf.writeByte('n');
}
buf.printf("%lld", val);
}
buf.writeByte('E');
}
else
{
s->error("ICE: C++ %s template value parameter is not supported", tv->valType->toChars());
assert(0);
}
}
else if (!tp || tp->isTemplateTypeParameter())
{
Type *t = isType(o);
assert(t);
t->accept(this);
}
else if (tp->isTemplateAliasParameter())
{
Dsymbol* d = isDsymbol(o);
Expression* e = isExpression(o);
if (!d && !e)
{
s->error("ICE: %s is unsupported parameter for C++ template: (%s)", o->toChars());
assert(0);
}
if (d && d->isFuncDeclaration())
{
bool is_nested = d->toParent() && !d->toParent()->isModule() && ((TypeFunction *)d->isFuncDeclaration()->type)->linkage == LINKcpp;
if (is_nested) buf.writeByte('X');
buf.writeByte('L');
mangle_function(d->isFuncDeclaration());
buf.writeByte('E');
if (is_nested) buf.writeByte('E');
}
else if (e && e->op == TOKvar && ((VarExp*)e)->var->isVarDeclaration())
{
VarDeclaration *vd = ((VarExp*)e)->var->isVarDeclaration();
buf.writeByte('L');
mangle_variable(vd, true);
buf.writeByte('E');
}
else if (d && d->isTemplateDeclaration() && d->isTemplateDeclaration()->onemember)
{
if (!substitute(d))
{
cpp_mangle_name(d);
store(d);
}
}
else
{
s->error("ICE: %s is unsupported parameter for C++ template", o->toChars());
assert(0);
}
}
else
{
s->error("ICE: C++ templates support only integral value , type parameters, alias templates and alias function parameters");
assert(0);
}
}
if (is_var_arg)
{
buf.writeByte('E');
}
buf.writeByte('E');
return;
}
else
{
buf.printf("%d%s", strlen(name), name);
}
}
void TemplateDeclaration::toJson(JsonOut *json)
{
json->objectStart();
// TemplateDeclaration::kind returns the kind of its Aggregate onemember, if it is one
json->property("kind", "template");
jsonProperties(json);
json->propertyStart("parameters");
json->arrayStart();
for (size_t i = 0; i < parameters->dim; i++)
{ TemplateParameter *s = (*parameters)[i];
json->objectStart();
json->property("name", s->ident->toChars());
TemplateTypeParameter *type = s->isTemplateTypeParameter();
if (type)
{
#if DMDV2
if (s->isTemplateThisParameter())
json->property("kind", "this");
else
json->property("kind", "type");
#else
json->property("kind", "type");
#endif
json->property("type", "deco", type->specType);
json->property("default", "defaultDeco", type->defaultType);
}
TemplateValueParameter *value = s->isTemplateValueParameter();
if (value)
{
json->property("kind", "value");
json->property("type", "deco", value->valType);
if (value->specValue)
json->property("specValue", value->specValue->toChars());
if (value->defaultValue)
json->property("defaultValue", value->defaultValue->toChars());
}
TemplateAliasParameter *alias = s->isTemplateAliasParameter();
if (alias)
{
json->property("kind", "alias");
json->property("type", "deco", alias->specType);
if (alias->specAlias)
json->property("specAlias", alias->specAlias->toChars());
if (alias->defaultAlias)
json->property("defaultAlias", alias->defaultAlias->toChars());
}
TemplateTupleParameter *tuple = s->isTemplateTupleParameter();
if (tuple)
{
json->property("kind", "tuple");
}
json->objectEnd();
}
json->arrayEnd();
json->propertyStart("members");
json->arrayStart();
for (size_t i = 0; i < members->dim; i++)
{ Dsymbol *s = (*members)[i];
s->toJson(json);
}
json->arrayEnd();
json->objectEnd();
}