/*
* If the object expression is query local, that is, if it is a simple variable
* referring to a name declared in a query clause, or itself a query local
* object expression, then if keep this expression as is. If not, then
* rewrite this expression into a query parameter reference.
*/
ExpressionPtr CaptureExtractor::rewriteObjectProperty(
ObjectPropertyExpressionPtr ope) {
assert(ope != nullptr);
auto obj = ope->getObject();
if (this->dependsOnQueryOnlyState(obj)) {
auto prop = ope->getProperty();
if (prop->getKindOf() == Expression::KindOfScalarExpression) {
auto scalar = static_pointer_cast<ScalarExpression>(prop);
const string &propName = scalar->getLiteralString();
if (!propName.empty()) {
return ope;
}
}
}
return newQueryParamRef(ope);
}
void Parser::appendMethodParams(Token ¶ms) {
if (params.num == 1) {
ObjectPropertyExpressionPtr prop = (m_objects.back())->
cast<ObjectPropertyExpression>();
if (prop) {
ObjectMethodExpressionPtr method =
NEW_EXP(ObjectMethod,
prop->getObject(), prop->getProperty(), params->exprs());
m_objects.back() = method;
} else {
m_objects.back() = NEW_EXP(SimpleFunctionCall,
Name::fromExp(this, m_objects.back()),
params->exprs());
}
}
}
void Parser::appendMethodParams(Token ¶ms) {
if (params.num() == 1) {
ExpressionPtr &out = m_objects.back();
ObjectPropertyExpressionPtr prop =
out->unsafe_cast<ObjectPropertyExpression>();
TempExpressionListPtr texp = out->unsafe_cast<TempExpressionList>();
if (!prop && texp) {
prop = texp->getLast()->unsafe_cast<ObjectPropertyExpression>();
}
if (prop) {
out = NEW_EXP(ObjectMethod,
prop->getObject(), prop->getProperty(), params->exprs());
if (texp) {
texp->setLast(out);
out = texp;
}
} else {
out = NEW_EXP(SimpleFunctionCall, Name::fromExp(this, out),
params->exprs());
}
}
}
void Parser::appendMethodParams(Token *params) {
ExpressionListPtr paramsExp;
if (params) {
if (params->exp) {
paramsExp = dynamic_pointer_cast<ExpressionList>(params->exp);
} else if (params->num == 1) {
paramsExp = NEW_EXP0(ExpressionList);
}
}
if (paramsExp) {
ObjectPropertyExpressionPtr prop =
dynamic_pointer_cast<ObjectPropertyExpression>(m_objects.back());
if (prop) {
ObjectMethodExpressionPtr method =
NEW_EXP(ObjectMethodExpression,
prop->getObject(), prop->getProperty(), paramsExp);
m_objects.back() = method;
} else {
m_objects.back() = NEW_EXP(DynamicFunctionCall, m_objects.back(),
paramsExp, NULL);
}
}
}
