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-rw-r--r--grammar/semantic_error.go3
1 files changed, 2 insertions, 1 deletions
diff --git a/grammar/semantic_error.go b/grammar/semantic_error.go
index 4dcd313..2d722a8 100644
--- a/grammar/semantic_error.go
+++ b/grammar/semantic_error.go
@@ -21,7 +21,8 @@ var (
semErrNoProduction = newSemanticError("a grammar needs at least one production")
semErrUndefinedSym = newSemanticError("undefined symbol")
semErrDuplicateProduction = newSemanticError("duplicate production")
- semErrDuplicateSym = newSemanticError("duplicate symbol")
+ semErrDuplicateTerminal = newSemanticError("duplicate terminal")
+ semErrDuplicateName = newSemanticError("duplicate names are not allowed between terminals and non-terminals")
semErrDirInvalidName = newSemanticError("invalid directive name")
semErrDirInvalidParam = newSemanticError("invalid parameter")
)