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 d540c03..4326d81 100644 --- a/grammar/semantic_error.go +++ b/grammar/semantic_error.go @@ -27,6 +27,8 @@ var ( semErrDuplicateTerminal = newSemanticError("duplicate terminal") semErrDuplicateName = newSemanticError("duplicate names are not allowed between terminals and non-terminals") semErrErrSymIsReserved = newSemanticError("symbol 'error' is reserved as a terminal symbol") + semErrDuplicateLabel = newSemanticError("a label must be unique in an alternative") + semErrInvalidLabel = newSemanticError("a label must differ from terminal symbols or non-terminal symbols") semErrDirInvalidName = newSemanticError("invalid directive name") semErrDirInvalidParam = newSemanticError("invalid parameter") ) |