void CompilationEngine::compileSubroutineCall(string subName)
{
/*
subroutineName '(' expressionList ')' |
(className | varName) '.' subroutineName '(' expression ')'
*/
string oldTok = jt.getToken();
jt.setToken(subName);
readIdentifier();
jt.setToken(oldTok);
if (jt.tokenType() == TokenType::kSYMBOL && jt.symbol() == '(') {
readSymbol('(');
nextToken();
compileExpressionList();
readSymbol(')');
} else {
readSymbol('.');
nextToken();
readIdentifier();
nextToken();
readSymbol('(');
nextToken();
compileExpressionList();
readSymbol(')');
}
nextToken();
}
void CompilationEng::compileSubroutineCall()
{
printCurrentToken(); //<id> </id>
getToken();
if(m_token == "(")
{
printCurrentToken(false); //<symbol> ( </symbol>
compileExpressionList();
printCurrentToken(); //<symbol> ) </symbol>
}
else if(m_token == ".")
{
printCurrentToken(false); //<symbol> . </symbol>
printCurrentToken(); //<id> subroutineName </symbol>
printCurrentToken(); //<symbol> ( </symbol>
compileExpressionList();
printCurrentToken(); //<symbol> ) </symbol>
}
}
void CompilationEng::compileTerm()
{
getToken();
printNonterminal("term");
numOfTab++;
if(tokenizer.tokenType() == "keyword")
{
printCurrentToken(false); //<keyword> keyword </keyword>
}
else if(tokenizer.tokenType() == "stringconst")
{
printCurrentToken(false);
}
else if(tokenizer.tokenType() == "integerConstant")
{
printCurrentToken(false);
}
else if(tokenizer.tokenType() == "symbol")
{
if(m_token == "(") // (expression)
{
printCurrentToken(false);
compileExpression();
printCurrentToken(); //<symbol> )</symbol>
}
else if(m_token == "-" || m_token == "~")
{
printCurrentToken(false); //<symbol> -|~ </symbol>
compileTerm();
}
else //empty term
{
m_bPutback = true;
}
}
else if(tokenizer.tokenType() == "identifier")
{
getToken();
if(m_token == "[") //varName [ expression ]
{
printToken(stringStack);
printCurrentToken(false);
compileExpression();
printCurrentToken(); //<symbol> ] </symbol>
}
else if(m_token == "(" ) // subroutineCall
{
printToken(stringStack);
printCurrentToken(false); //<symbol> ( </symbol>
compileExpressionList();
printCurrentToken();
}
else if(m_token == ".")
{
printToken(stringStack); //className
printCurrentToken(false); //<symbol> . </symbol>
printCurrentToken(); //<id> subroutineName </id>
printCurrentToken(); //<symbol> ( </symbol>
compileExpressionList();
printCurrentToken(); //<symbol> ) </symbol>
}
else if(m_sOp.count(m_token[0]) > 0) //term op term
{
printToken(stringStack); //<id> </id>
m_bPutback = true;
}
else//varName
{
printToken(stringStack); //<id> varName </id>
m_bPutback = true;
}
}
numOfTab--;
printNonterminal("term",false); //end of term
}