void processFunction(SymbolTable *table, Node *ptr)
{
int stIndex, i;
char *functionName;
Node *p;
int width = 0;
functionName = ptr->son->son->next->token.tokenValue;
flag_returned = 0;
stIndex = lookup(table, functionName);
SymbolTable *nextTable = table->rows[stIndex].table;
// parameters
if (ptr->son->son->next->next->son) {
for (p = ptr->son->son->next->next->son; p; p = p->next) {
if (p->token.tokenNumber == PARAM_DCL) {
processDeclaration(nextTable, p->son); // todo
} else {
icg_error(9);
}
}
}
for (p = ptr->son->next->son->son; p; p = p->next) {
if (p->token.tokenNumber == DCL) {
processDeclaration(nextTable, p->son); // todo
} else {
icg_error(3);
}
}
emitProc(functionName, nextTable->offset - 1, nextTable->base, 2);
// 지역변수
for (i = 0; i < nextTable->count; i++) {
emitSym("sym", nextTable->base, nextTable->rows[i].offset, nextTable->rows[i].width);
}
// Run Statement
for (p = ptr->son; p; p = p->next) {
if (p->token.tokenNumber == COMPOUND_ST) {
processStatement(nextTable, p);
}
}
if (!flag_returned) {
emit0("ret");
}
emit0("end");
}
void UnprocessedStatement::process(Ruleset &r) {
Extension extension;
Mixin mixin;
Declaration* declaration;
#ifdef WITH_LIBGLOG
VLOG(2) << "Statement: " << getTokens()->toString();
#endif
// process extends statement
if (getExtension(extension.getTarget())) {
extension.setExtension(r.getSelector());
getLessRuleset()->getContext()->addExtension(extension);
return;
}
mixin.setStylesheet(getLessRuleset()->getLessStylesheet());
// process mixin
if (mixin.parse(*getTokens()) &&
mixin.insert(*r.getStylesheet(), *getLessRuleset()->getContext(),
&r, getLessRuleset())) {
} else {
declaration = r.createDeclaration();
if (processDeclaration(declaration)) {
#ifdef WITH_LIBGLOG
VLOG(2) << "Declaration: " <<
declaration->getProperty() << ": " << declaration->getValue().toString();
#endif
getLessRuleset()->getContext()->processValue(declaration->getValue());
#ifdef WITH_LIBGLOG
VLOG(2) << "Processed declaration: " <<
declaration->getProperty() << ": " << declaration->getValue().toString();
#endif
} else {
r.deleteDeclaration(*declaration);
throw new ParseException(getTokens()->toString(),
"variable, mixin or declaration.",
getTokens()->front().line,
getTokens()->front().column,
getTokens()->front().source);
}
}
#ifdef WITH_LIBGLOG
VLOG(3) << "Statement done";
#endif
}
void codeGen(Node *root, FILE *ucoFile)
{
Node *p; // pointer for Node
int globalSize; // the size of global variables
file = ucoFile; //
rootTable = initSymbolTable();
// step 1: process the declaration part
for (p = root->son; p; p = p->next) {
if (p->token.tokenNumber == DCL) {
processDeclaration(rootTable, p->son);
} else if (p->token.tokenNumber == FUNC_DEF) {
processFuncHeader(rootTable, p->son);
} else {
icg_error(3);
}
}
globalSize = rootTable->offset - 1;
// step 2: process the function part
for (p = root->son; p; p = p->next) {
if (p->token.tokenNumber == FUNC_DEF) {
processFunction(rootTable, p);
}
}
display(rootTable, 0);
// step 3: generate codes for starting routine
// bgn globalSize
// ldp
// call main
// end
emit1("bgn", globalSize);
emit0("ldp");
emitJump("call", "main");
emit0("end");
}
