diff options
Diffstat (limited to 'grammar/semantic_error.go')
| -rw-r--r-- | grammar/semantic_error.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/grammar/semantic_error.go b/grammar/semantic_error.go index ca84cf0..9006124 100644 --- a/grammar/semantic_error.go +++ b/grammar/semantic_error.go @@ -15,6 +15,8 @@ func (e *SemanticError) Error() string { } var ( + semErrUnusedProduction = newSemanticError("unused production") + semErrUnusedTerminal = newSemanticError("unused terminal") semErrNoProduction = newSemanticError("a grammar needs at least one production") semErrUndefinedSym = newSemanticError("undefined symbol") semErrDuplicateProduction = newSemanticError("duplicate production") |