glsl: Parse the "binding" keyword and store it in ast_type_qualifier.

Nothing actually uses this yet.

v2: Remove >= 0 checks.  They'll be handled in later validation.

Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Paul Berry <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
index b73ec6b3e19..cbd94b41f82 100644
--- a/src/glsl/glsl_parser.yy
+++ b/src/glsl/glsl_parser.yy
@@ -1254,6 +1254,12 @@ layout_qualifier_id:
          }
       }
 
+      if (state->ARB_shading_language_420pack_enable &&
+          strcmp("binding", $1) == 0) {
+         $$.flags.q.explicit_binding = 1;
+         $$.binding = $3;
+      }
+
       /* If the identifier didn't match any known layout identifiers,
        * emit an error.
        */