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| author | Richard van Velzen <rvanvelzen@expert-shops.com> | 2012-11-12 15:41:03 +0100 |
|---|---|---|
| committer | Richard van Velzen <rvanvelzen@expert-shops.com> | 2012-11-12 15:41:03 +0100 |
| commit | f96f796f71a1eb4657f42c23513c59eaf11bf401 (patch) | |
| tree | 45d350de271cdc51d26f900560fa438b3f7f3ac1 /lib | |
| parent | a9fa178f86b36959ea9b86b591e22f4406aa7ce3 (diff) | |
| download | tracifyjs-f96f796f71a1eb4657f42c23513c59eaf11bf401.tar.gz tracifyjs-f96f796f71a1eb4657f42c23513c59eaf11bf401.zip | |
Add simple optimization for empty-string concats.
ref. #43
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compress.js | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/compress.js b/lib/compress.js index a4a53f5a..fce0757c 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -1642,6 +1642,11 @@ merge(Compressor.prototype, { case "<=": reverse(">="); break; } } + if (self.operator == "+" && self.right instanceof AST_String + && self.right.getValue() === "" && self.left instanceof AST_Binary + && self.left.operator == "+" && self.left.left instanceof AST_String) { + return self.left; + } return self; }); |