diff options
Diffstat (limited to 'grammar/grammar.go')
| -rw-r--r-- | grammar/grammar.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/grammar/grammar.go b/grammar/grammar.go index c4bbae3..812a845 100644 --- a/grammar/grammar.go +++ b/grammar/grammar.go @@ -95,6 +95,9 @@ func (b *GrammarBuilder) Build() (*Grammar, error) { if err != nil { return nil, err } + if prodsAndActs == nil && len(b.errs) > 0 { + return nil, b.errs + } pa, err := b.genPrecAndAssoc(symTabAndLexSpec.symTab, prodsAndActs.prods) if err != nil { |