[Mlir-commits] [mlir] [mlir][mlir-tblgen] Emit correct error message if method is pruned (PR #160334)

[Justin Kim]

================
@@ -0,0 +1,39 @@
+// RUN: not mlir-tblgen -gen-attrdef-decls -I %S/../../include %s 2>&1 | FileCheck %s
+
+include "mlir/IR/OpBase.td"
+
+def Test_Dialect : Dialect {
+  let name = "test";
+  let cppNamespace = "::test";
+}
+
+class TestAttr<string attrName, string attrMnemonic, list<Trait> traits = []>
+    : AttrDef<Test_Dialect, attrName, traits> {
+  let mnemonic = attrMnemonic;
+}
+
+def TestAttr : TestAttr<"Test", "test"> {
+  let summary = "Test attrubute";
+  let description = "Test attribute";
+
+  let parameters = (ins AttrParameter<"std::int64_t", "arg">:$arg);
+  let builders = [AttrBuilder<(ins "std::int64_t":$arg), [{
+            return $_get($_ctxt, arg);
+        }]>];
+
+  let assemblyFormat = "`<` $arg `>`";
+
+  let skipDefaultBuilders = 0;
+  let genVerifyDecl = 1;
+  let genMnemonicAlias = 1;
+}
+
+def Test_TestAttrOp : Op<Test_Dialect, "test", []> {
+  let summary = "test operation with attribute";
+  let description = "test operation with attribute";
+
+  let arguments = (ins TestAttr:$testAttr);
+  let assemblyFormat = "$testAttr attr-dict";
+}
+
+// CHECK: attr-duplicated-builder-error.td:15:5: error: Unexpected overlap when generating `get` for TestAttr (from line 537)
----------------
JustinKim98 wrote:

It's line number of error location in `AttrOrTypeDefGen.cpp`.
I followed this to be consistent with error handling logic in `OpDefinitionsGen.cpp`.
However, if you feel error message looks terse, I can improve it to provide more information, and omit line number of the original source code.

https://github.com/llvm/llvm-project/pull/160334