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| author |  Jarred Sumner <jarred@jarredsumner.com>
| 2022-03-07 00:31:48 -0800 |
|---|---|---|
| committer | Jarred Sumner <jarred@jarredsumner.com>
| 2022-03-07 00:31:48 -0800 |
| commit | ccf57c7f3e34203602a2cefaa8318378b3ea9cef (patch) | |
| tree | 3bd361d27732eabefb3633bee26c6b347643a919 | |
| parent | 2cc265361d363c1ea7685aecae3cd27aa03e187e (diff) | |
| download | bun-ccf57c7f3e34203602a2cefaa8318378b3ea9cef.tar.gz bun-ccf57c7f3e34203602a2cefaa8318378b3ea9cef.tar.zst bun-ccf57c7f3e34203602a2cefaa8318378b3ea9cef.zip | |
[JS] Slight optimization for newlines
| -rw-r--r-- | src/js_lexer.zig | 38 |
1 files changed, 2 insertions, 36 deletions
diff --git a/src/js_lexer.zig b/src/js_lexer.zig index 3865708dd..4dea7230a 100644 --- a/src/js_lexer.zig +++ b/src/js_lexer.zig @@ -281,9 +281,7 @@ fn NewLexer_( // include a <CR> or <CR><LF> sequence. // Convert '\r\n' into '\n' - if (iter.i < text.len and text[iter.i] == '\n') { - iter.i += 1; - } + iter.i += @as(u32, @boolToInt(iter.i < text.len and text[iter.i] == '\n')); // Convert '\r' into '\n' buf.append('\n') catch unreachable; @@ -712,41 +710,9 @@ fn NewLexer_( continue; } } - // which is kind of nonsensical for real usage? - // fast path: if you feed bun a string that is greater than around 800 KB - // it becomes worthwhile to do a vectorized search - // if (comptime big) { - // if (comptime quote == '"' or quote == '\'') { - // while (lexer.current + 16 < lexer.source.contents.len) { - // const quote_ = @splat(16, @as(u8, quote)); - // const backslash = @splat(16, @as(u8, '\\')); - // const V1x16 = @Vector(16, u1); - - // { - // const vec: strings.AsciiVector = lexer.source.contents[lexer.current..][0..strings.ascii_vector_size].*; - - // const any_significant = - // @bitCast(V1x16, vec > strings.max_16_ascii) | - // @bitCast(V1x16, quote_ == vec) | - // @bitCast(V1x16, backslash == vec); - - // // vec > strings.max_16_ascii); - // const bitmask = @ptrCast(*const u16, &any_significant).*; - // const first = @ctz(u16, bitmask); - - // if (first < 16) { - // lexer.end = lexer.current + @maximum(first, 1) - 1; - // lexer.current = lexer.current + first; - // lexer.step(); - // continue :stringLiteral; - // } - // lexer.current += 16; - // } - // } - // } - // } }, } + lexer.step(); } |