if(token=="if")
return parse_conditional();
else if(token=="for")
- return parse_iteration();
+ return parse_for();
+ else if(token=="while")
+ return parse_while();
else if(token=="passthrough")
return parse_passthrough();
else if(token=="return")
return cond;
}
-RefPtr<Iteration> ProgramParser::parse_iteration()
+RefPtr<Iteration> ProgramParser::parse_for()
{
expect("for");
expect("(");
return loop;
}
+RefPtr<Iteration> ProgramParser::parse_while()
+{
+ expect("while");
+ expect("(");
+ RefPtr<Iteration> loop = new Iteration;
+ loop->condition = parse_expression();
+ expect(")");
+
+ parse_block(loop->body, false);
+
+ return loop;
+}
+
RefPtr<Passthrough> ProgramParser::parse_passthrough()
{
expect("passthrough");