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Swift: Extract structured keypath components.

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Changes in swift/ql/lib are generated by swift/codegen without manual intervention.
This commit is contained in:
Alexandre Boulgakov
2023-04-06 18:26:14 +01:00
parent 2b1dea56b5
commit 35a2d55d18
40 changed files with 821 additions and 34 deletions
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26
swift/extractor/translators/ExprTranslator.cpp
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@@ -378,10 +378,10 @@ codeql::MemberRefExpr ExprTranslator::translateMemberRefExpr(const swift::Member
codeql::KeyPathExpr ExprTranslator::translateKeyPathExpr(const swift::KeyPathExpr& expr) {
auto entry = createExprEntry(expr);
// TODO this should be completely redone, as we are using internal stuff here instead of
// extracting expr.getComponents()
if (!expr.isObjC()) {
entry.parsed_path = dispatcher.fetchOptionalLabel(expr.getParsedPath());
for (const auto& component : expr.getComponents()) {
entry.components.push_back(emitKeyPathComponent(component));
}
if (auto rootTypeRepr = expr.getRootType()) {
auto keyPathType = expr.getType()->getAs<swift::BoundGenericClassType>();
assert(keyPathType && "KeyPathExpr must have BoundGenericClassType");
@@ -488,6 +488,26 @@ TrapLabel<ArgumentTag> ExprTranslator::emitArgument(const swift::Argument& arg)
return entry.id;
}
TrapLabel<KeyPathComponentTag> ExprTranslator::emitKeyPathComponent(
const swift::KeyPathExpr::Component& component) {
auto entry = dispatcher.createUncachedEntry(component);
entry.kind = static_cast<int>(component.getKind());
if (auto subscript_args = component.getSubscriptArgs()) {
for (const auto& arg : *subscript_args) {
entry.subscript_arguments.push_back(emitArgument(arg));
}
}
if (component.getKind() == swift::KeyPathExpr::Component::Kind::TupleElement) {
entry.tuple_index = static_cast<int>(component.getTupleIndex());
}
if (component.hasDeclRef()) {
entry.decl_ref = dispatcher.fetchLabel(component.getDeclRef().getDecl());
}
entry.component_type = dispatcher.fetchLabel(component.getComponentType());
dispatcher.emit(entry);
return entry.id;
}
void ExprTranslator::fillExplicitCastExpr(const swift::ExplicitCastExpr& expr,
codeql::ExplicitCastExpr& entry) {
entry.sub_expr = dispatcher.fetchLabel(expr.getSubExpr());