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Implement predefined error interface.

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From-SVN: r181798
This commit is contained in:
Ian Lance Taylor 2011-11-29 07:03:49 +00:00
parent b2a1a74d99
commit 714cb9f01a
1 changed files with 12 additions and 0 deletions
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12
gcc/go/gofrontend/gogo.cc
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@ -97,6 +97,18 @@ Gogo::Gogo(Backend* backend, int int_type_size, int pointer_size)
this->add_named_type(Type::make_named_string_type());
// "error" is interface { Error() string }.
{
Typed_identifier_list *methods = new Typed_identifier_list;
Typed_identifier_list *results = new Typed_identifier_list;
results->push_back(Typed_identifier("", Type::lookup_string_type(), loc));
Type *method_type = Type::make_function_type(NULL, NULL, results, loc);
methods->push_back(Typed_identifier("Error", method_type, loc));
Type *error_iface = Type::make_interface_type(methods, loc);
Named_type *error_type = Named_object::make_type("error", NULL, error_iface, loc)->type_value();
this->add_named_type(error_type);
}
this->globals_->add_constant(Typed_identifier("true",
Type::make_boolean_type(),
loc),