================
@@ -272,4 +272,67 @@ Interpreter::Visit(const UnaryOpNode *node) {
m_expr, "invalid ast: unexpected binary operator", node->GetLocation());
}
+llvm::Expected<lldb::ValueObjectSP>
+Interpreter::Visit(const ArraySubscriptNode *node) {
+ auto lhs_or_err = Evaluate(node->GetBase());
+ if (!lhs_or_err) {
+ return lhs_or_err;
+ }
+ lldb::ValueObjectSP base = *lhs_or_err;
+ const llvm::APInt *index = node->GetIndex();
+
+ Status error;
+ if (base->GetCompilerType().IsReferenceType()) {
+ base = base->Dereference(error);
+ if (error.Fail())
+ return error.ToError();
+ }
+
+ // Check to see if 'base' has a synthetic value; if so, try using that.
+ uint64_t child_idx = index->getZExtValue();
+ if (base->HasSyntheticValue()) {
+ lldb::ValueObjectSP synthetic = base->GetSyntheticValue();
+ if (synthetic && synthetic != base) {
+ uint32_t num_children = synthetic->GetNumChildrenIgnoringErrors();
----------------
labath wrote:
> I think I'd prefer a vector telling me that I'm out of bounds instead of
> returning 0 like it's a correct value from the vector.
I mean, I definitely agree that should be the high level functionality. My
questions was more of like "whose responsibility is to make sure this happens?"
https://github.com/llvm/llvm-project/pull/138551
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