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Fix empty arguments to template instantiation

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This commit is contained in:
Jonathan Müller 2017-06-23 07:34:22 +02:00
commit e355e7a653
4 changed files with 45 additions and 32 deletions
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49
src/code_generator.cpp
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@ -1035,29 +1035,34 @@ bool cppast::generate_code(code_generator& generator, const cpp_entity& e)
return false;
}
void detail::write_template_arguments(code_generator::output& output,
type_safe::array_ref<const cpp_template_argument> arguments)
void detail::write_template_arguments(
code_generator::output& output,
type_safe::optional<type_safe::array_ref<const cpp_template_argument>> arguments)
{
if (arguments.size() == 0u)
return;
output << punctuation("<") << bracket_ws;
auto need_sep = false;
for (auto& arg : arguments)
if (!arguments)
{
if (need_sep)
output << comma;
else
need_sep = true;
if (auto type = arg.type())
detail::write_type(output, type.value(), "");
else if (auto expr = arg.expression())
detail::write_expression(output, expr.value());
else if (auto templ = arg.template_ref())
output << templ.value();
else
DEBUG_UNREACHABLE(detail::assert_handler{});
output << punctuation("<") << punctuation(">");
}
else
{
output << punctuation("<") << bracket_ws;
auto need_sep = false;
for (auto& arg : arguments.value())
{
if (need_sep)
output << comma;
else
need_sep = true;
if (auto type = arg.type())
detail::write_type(output, type.value(), "");
else if (auto expr = arg.expression())
detail::write_expression(output, expr.value());
else if (auto templ = arg.template_ref())
output << templ.value();
else
DEBUG_UNREACHABLE(detail::assert_handler{});
}
output << bracket_ws << punctuation(">");
}
output << bracket_ws << punctuation(">");
}