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| author | Charlie Stanton <charlie@shtanton.xyz> | 2023-04-24 19:12:46 +0100 |
|---|---|---|
| committer | Charlie Stanton <charlie@shtanton.xyz> | 2023-04-24 19:12:46 +0100 |
| commit | c10bca852dfd2ed3ae8f776c12705675a8ab99bf (patch) | |
| tree | d63b20b30eeb1e81a8cda2e8c5e381c0252fc13e /subex/main.go | |
| parent | 1e092ec62cf591e57f0b0bfb80b4484dd90c9c8c (diff) | |
| download | stred-go-c10bca852dfd2ed3ae8f776c12705675a8ab99bf.tar | |
Adds a check to end subex execution early if no viable branches remain
Diffstat (limited to 'subex/main.go')
| -rw-r--r-- | subex/main.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/subex/main.go b/subex/main.go index ae829d9..c1718a4 100644 --- a/subex/main.go +++ b/subex/main.go @@ -112,6 +112,9 @@ func RunTransducer(transducer SubexState, input []walk.Atom) (output []walk.Atom newStates = append(newStates, state.eat(piece)...) } states = pruneStates(newStates) + if len(states) == 0 { + return nil, true + } } for _, state := range states { acceptingStacks := state.accepting() |