string token = peek_token();
if(token=="pragma")
preprocess_pragma();
+ else if(token=="version")
+ preprocess_version();
else if(token=="define" || token=="undef" || token=="if" || token=="ifdef" || token=="ifndef" || token=="else" ||
- token=="elif" || token=="endif" || token=="error" || token=="extension" || token=="version" || token=="line")
+ token=="elif" || token=="endif" || token=="error" || token=="extension" || token=="line")
throw runtime_error(format_error(format("Unsupported preprocessor directive '%s'", token)));
else if(!token.empty())
throw runtime_error(format_syntax_error("a preprocessor directive"));
iter = line_end;
}
+void ProgramParser::preprocess_version()
+{
+ expect("version");
+ string token = parse_token();
+ unsigned version = lexical_cast<unsigned>(token);
+ cur_stage->required_version = Version(version/100, version%100);
+
+ token = parse_token();
+ if(!token.empty())
+ throw runtime_error(format_syntax_error("end of line"));
+}
+
void ProgramParser::preprocess_pragma()
{
expect("pragma");