Summary:
There are a few field init values that are concrete but not complete/foldable (e.g. `?`). This allows for using those values as initializers without erroring out.
Example:
```
class A {
string value = ?;
}
class B<A impl> : A {
let value = impl.value; // This currently emits an error.
let value = ?; // This doesn't emit an error.
}
```
Differential Revision: https://reviews.llvm.org/D74360
Init *resolveReferences(Resolver &R) const override;
Init *Fold(Record *CurRec) const;
+ bool isConcrete() const override;
std::string getAsString() const override {
return Rec->getAsString() + "." + FieldName->getValue().str();
}
return const_cast<FieldInit *>(this);
}
+bool FieldInit::isConcrete() const {
+ if (DefInit *DI = dyn_cast<DefInit>(Rec)) {
+ Init *FieldVal = DI->getDef()->getValue(FieldName)->getValue();
+ return FieldVal->isConcrete();
+ }
+ return false;
+}
+
static void ProfileCondOpInit(FoldingSetNodeID &ID,
ArrayRef<Init *> CondRange,
ArrayRef<Init *> ValRange,
--- /dev/null
+// RUN: llvm-tblgen %s | FileCheck %s
+// XFAIL: vg_leak
+
+// CHECK: --- Defs ---
+
+// CHECK: def A1 {
+// CHECK: string value = ?;
+// CHECK: }
+
+// CHECK: def B1 {
+// CHECK: string value = A1.value;
+// CHECK: }
+
+class A {
+ string value = ?;
+}
+
+class B<A impl> : A {
+ let value = impl.value;
+}
+
+def A1 : A;
+def B1 : B<A1>;