================
@@ -0,0 +1,152 @@
+#include "clang/Parse/ParseHLSLRootSignature.h"
+
+namespace llvm {
+namespace hlsl {
+namespace root_signature {
+
+// Lexer Definitions
+
+static bool IsPreprocessorNumberChar(char C) {
+ // TODO: extend for float support with or without hexadecimal/exponent
+ return isdigit(C); // integer support
+}
+
+bool RootSignatureLexer::LexNumber(RootSignatureToken &Result) {
+ // NumericLiteralParser does not handle the sign so we will manually apply it
+ Result.Signed = Buffer.front() == '-';
----------------
inbelic wrote:
I guess DXC actually does allow a `+` to be the first character, as well as,
`.`. For the sake of compatibility, we should bring those forward.
https://github.com/llvm/llvm-project/pull/122981
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