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-rw-r--r--grammar/semantic_error.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/grammar/semantic_error.go b/grammar/semantic_error.go
index a843719..794d8da 100644
--- a/grammar/semantic_error.go
+++ b/grammar/semantic_error.go
@@ -18,6 +18,7 @@ var (
semErrNoGrammarName = newSemanticError("name is missing")
semErrDuplicateAssoc = newSemanticError("associativity and precedence cannot be specified multiple times for a symbol")
semErrUndefinedPrec = newSemanticError("symbol must has precedence")
+ semErrUndefinedOrdSym = newSemanticError("undefined ordered symbol")
semErrUnusedProduction = newSemanticError("unused production")
semErrUnusedTerminal = newSemanticError("unused terminal")
semErrTermCannotBeSkipped = newSemanticError("a terminal used in productions cannot be skipped")