diff options
| author | daurnimator <quae@daurnimator.com> | 2017-06-01 17:40:18 +1000 |
|---|---|---|
| committer | daurnimator <quae@daurnimator.com> | 2017-06-01 17:40:18 +1000 |
| commit | cf46bc042fb475c9e2d21fc8782ede28d05054c2 (patch) | |
| tree | 92509958fba706e0bb1c20752ea2f2a46ec50689 | |
| parent | 51d0f9909b3d5a4f7ae3c13eae9faf26e50eab7c (diff) | |
| download | fengari-cf46bc042fb475c9e2d21fc8782ede28d05054c2.tar.gz fengari-cf46bc042fb475c9e2d21fc8782ede28d05054c2.tar.bz2 fengari-cf46bc042fb475c9e2d21fc8782ede28d05054c2.zip | |
src/llex.js: Avoid a .slice operation
| -rw-r--r-- | src/llex.js | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/llex.js b/src/llex.js index 905be5a..8abd27b 100644 --- a/src/llex.js +++ b/src/llex.js @@ -463,7 +463,8 @@ const read_string = function(ls, del, seminfo) { }; const isreserved = function(w) { - return luaX_tokens.slice(0, 22).indexOf(w) >= 0; + let kidx = luaX_tokens.indexOf(w); + return kidx >= 0 && kidx <= 22; }; const llex = function(ls, seminfo) { @@ -573,8 +574,8 @@ const llex = function(ls, seminfo) { let ts = luaX_newstring(ls, ls.buff.buffer); seminfo.ts = ts; - let kidx = luaX_tokens.slice(0, 22).indexOf(defs.to_jsstring(ts.getstr())); - if (kidx >= 0) /* reserved word? */ + let kidx = luaX_tokens.indexOf(defs.to_jsstring(ts.getstr())); + if (kidx >= 0 && kidx <= 22) /* reserved word? */ return kidx + FIRST_RESERVED; else return R.TK_NAME; |