void Symbol::beginLocal(BlockScopeRawPtr scope) {
m_prevCoerced = m_coerced;
if (isClosureVar()) {
ExpressionListPtr useVars =
scope->getContainingFunction()->getClosureVars();
assert(useVars);
// linear scan for now, since most use var lists are
// fairly short
bool found = false;
for (int i = 0; i < useVars->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*useVars)[i]);
if (m_name == param->getName()) {
// bootstrap use var with parameter type
m_coerced = param->getType();
found = true;
break;
}
}
if (!found) assert(false);
assert(!isRefClosureVar() ||
(m_coerced && m_coerced->is(Type::KindOfVariant)));
} else {
m_coerced.reset();
}
}
FunctionScopeRawPtr Expression::getOriginalFunction() {
BlockScopeRawPtr scope = getOriginalScope();
return scope ? scope->getContainingFunction() : FunctionScopeRawPtr();
}