[clang] [clang-format] Support of TableGen value annotations. (PR #80299)

[Hirofumi Nakamura via cfe-commits]

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@@ -388,6 +400,28 @@ class AnnotatingParser {
       Contexts.back().IsExpression = !IsForOrCatch;
     }
 
+    if (Style.isTableGen()) {
+      if (FormatToken *Prev = OpeningParen.Previous) {
+        if (Prev->is(TT_TableGenCondOperator)) {
+          Contexts.back().IsTableGenCondOpe = true;
+          Contexts.back().IsExpression = true;
+        } else if (Contexts.size() > 1 &&
+                   Contexts[Contexts.size() - 2].IsTableGenBangOpe) {
+          // Hack to handle bang operators. The parent context's flag
+          // was set by parseTableGenSimpleValue().
+          // We have to specify the context outside because the prev of "(" may
+          // be ">", not the bang operator in this case.
+          Contexts.back().IsTableGenBangOpe = true;
+          Contexts.back().IsExpression = true;
+        } else {
+          // Otherwise, this paren seems DAGArg.
+          if (!parseTableGenDAGArg())
+            return false;
+          return parseTableGenDAGArgAndList(&OpeningParen);
+        }
+      }
+    }
+
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hnakamura5 wrote:

In parseParens().

https://github.com/llvm/llvm-project/pull/80299