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added function parsing (only one function so far)

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This commit is contained in:
Marc Zinnschlag 2010-06-29 17:51:02 +02:00
parent c8c5ef5467
commit 5fb4abae4f
9 changed files with 95 additions and 9 deletions
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47
components/compiler/exprparser.cpp
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@ -155,6 +155,25 @@ namespace Compiler
popOperator();
}
void ExprParser::parseArguments (const std::string& arguments, Scanner& scanner)
{
ExprParser parser (getErrorHandler(), getContext(), mLocals, mLiterals);
for (std::string::const_iterator iter (arguments.begin()); iter!=arguments.end();
++iter)
{
parser.reset();
scanner.scan (parser);
char type = parser.append (mCode);
if (type!=*iter)
Generator::convert (mCode, type, *iter);
mOperands.push_back (*iter);
}
}
ExprParser::ExprParser (ErrorHandler& errorHandler, Context& context, Locals& locals,
Literals& literals)
: Parser (errorHandler, context), mLocals (locals), mLiterals (literals),
@ -193,6 +212,17 @@ namespace Compiler
bool ExprParser::parseKeyword (int keyword, const TokenLoc& loc, Scanner& scanner)
{
if (keyword==Scanner::K_getsquareroot && mNextOperand)
{
mTokenLoc = loc;
parseArguments ("f", scanner);
Generator::squareRoot (mCode);
mNextOperand = false;
return true;
}
return Parser::parseKeyword (keyword, loc, scanner);
}
@ -234,14 +264,17 @@ namespace Compiler
return true;
}
mTokenLoc = loc;
switch (code)
if (!mNextOperand)
{
case Scanner::S_plus: pushBinaryOperator ('+'); return true;
case Scanner::S_minus: pushBinaryOperator ('-'); return true;
case Scanner::S_mult: pushBinaryOperator ('*'); return true;
case Scanner::S_div: pushBinaryOperator ('/'); return true;
mTokenLoc = loc;
switch (code)
{
case Scanner::S_plus: pushBinaryOperator ('+'); return true;
case Scanner::S_minus: pushBinaryOperator ('-'); return true;
case Scanner::S_mult: pushBinaryOperator ('*'); return true;
case Scanner::S_div: pushBinaryOperator ('/'); return true;
}
}
return Parser::parseSpecial (code, loc, scanner);