[clang-tools-extra] [llvm] [clang-doc] Adds a mustache backend (PR #133161)

[Paul Kirth via llvm-commits]

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@@ -359,6 +371,9 @@ struct FunctionInfo : public SymbolInfo {
   // Full qualified name of this function, including namespaces and template
   // specializations.
   SmallString<16> FullName;
+  
+  // Function Prototype
+  SmallString<256> ProtoType;
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ilovepi wrote:

why 256? you realize that allocates a 256 byte buffer in this struct, right? Do we expect to use many of them? Do you have a feeling for the typical size of the Prototype? like what's the median size in say LLVM? what about 90th percentile? I have a feeling there is a better default that won't use so much space.

Also, I have a felling the layout will be kind of odd right now. You can try adding -Wpadding to the clang-doc build to see if there's a better layout for these internal types.

https://github.com/llvm/llvm-project/pull/133161