release/20.x: [Support] Ensure complete type DelimitedScope (#127459)

[llvmbot]

Backport e65d388

Requested by: @hahnjo

[llvmbot]

@dwblaikie What do you think about merging this PR to the release branch?

[llvmbot]

@llvm/pr-subscribers-llvm-support

Author: None (llvmbot)

Changes

Backport e65d388

Requested by: @hahnjo

---

Full diff: https://github.com/llvm/llvm-project/pull/128686.diff

1 Files Affected:

• (modified) llvm/include/llvm/Support/ScopedPrinter.h (+7-9)

diff --git a/llvm/include/llvm/Support/ScopedPrinter.h b/llvm/include/llvm/Support/ScopedPrinter.h
index 419ab97366796..506b40a09ed78 100644
--- a/llvm/include/llvm/Support/ScopedPrinter.h
+++ b/llvm/include/llvm/Support/ScopedPrinter.h
@@ -539,7 +539,13 @@ ScopedPrinter::printHex<support::ulittle16_t>(StringRef Label,
   startLine() << Label << ": " << hex(Value) << "\n";
 }
 
-struct DelimitedScope;
+struct DelimitedScope {
+  DelimitedScope(ScopedPrinter &W) : W(&W) {}
+  DelimitedScope() : W(nullptr) {}
+  virtual ~DelimitedScope() = default;
+  virtual void setPrinter(ScopedPrinter &W) = 0;
+  ScopedPrinter *W;
+};
 
 class JSONScopedPrinter : public ScopedPrinter {
 private:
@@ -838,14 +844,6 @@ class JSONScopedPrinter : public ScopedPrinter {
   }
 };
 
-struct DelimitedScope {
-  DelimitedScope(ScopedPrinter &W) : W(&W) {}
-  DelimitedScope() : W(nullptr) {}
-  virtual ~DelimitedScope() = default;
-  virtual void setPrinter(ScopedPrinter &W) = 0;
-  ScopedPrinter *W;
-};
-
 struct DictScope : DelimitedScope {
   explicit DictScope() = default;
   explicit DictScope(ScopedPrinter &W) : DelimitedScope(W) { W.objectBegin(); }

[github-actions]

@hahnjo (or anyone else). If you would like to add a note about this fix in the release notes (completely optional). Please reply to this comment with a one or two sentence description of the fix. When you are done, please add the release:note label to this PR.