bool VariableTable::isLocal(const Symbol *sym) const {
if (!sym) return false;
if (getScopePtr()->is(BlockScope::FunctionScope)) {
/*
isSuperGlobal is not wanted here. It just means that
$GLOBALS[name] was referenced in this scope.
It doesnt say anything about the variable $name.
*/
return (!sym->isStatic() &&
!sym->isGlobal() &&
!sym->isParameter());
}
return false;
}
void VariableTable::getLocalVariableNames(vector<string> &syms) const {
FunctionScopeRawPtr fs = getScopePtr()->getContainingFunction();
bool dollarThisIsSpecial = (fs->getContainingClass() ||
fs->inPseudoMain());
for (unsigned int i = 0; i < m_symbolVec.size(); i++) {
const string& name = m_symbolVec[i]->getName();
if (name == "this" && dollarThisIsSpecial) {
// The "this" variable in methods and pseudo-main is special and is
// handled separately below.
continue;
}
syms.push_back(name);
}
if (fs->needsLocalThis()) {
assert(dollarThisIsSpecial);
// We only need a local variable named "this" if the current function
// contains an occurrence of "$this" that is not part of a property
// expression or object method call expression
syms.push_back("this");
}
}
