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Further optimize _.template by controlling how the with-statement is inserted.

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Former-commit-id: a62331e771302f9390d5aca04f878b839fe11b69
This commit is contained in:
John-David Dalton
2012-07-05 11:26:17 -04:00
parent a5fe1eb5fb
commit fe6aa8a6fc
4 changed files with 109 additions and 69 deletions
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11
build.js
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@@ -718,19 +718,20 @@
// remove unnecessary code
code = code
.replace(/, *__t, *__j *= *Array.prototype.join|function print[^}]+}/g, '')
.replace(/, *__t,[^;]+|function print[^}]+}/g, '')
.replace(/'(?:\\n|\s)+'/g, "''")
.replace(/__p *\+= *' *';/g, '')
.replace(/(__p *\+= *)' *' *\+/g, '$1')
.replace(/\+\s*' *';/g, ';')
.replace(/(\{) *;|; *(\})/g, '$1$2')
.replace(/\(\(__t *= *\( *([^)]+) *\)\) *== *null *\? *'' *: *__t\)/g, '$1');
.replace(/\(\(__w?t *= *\( *([^)]+) *\)\) *== *null *\? *'' *: *__w?t\)/g, '$1');
// remove the with-statement
code = code.replace(/ *with *\([^)]+\) *{/, '\n').replace(/\s*}(\s*)return /, '$1return ');
code = code.replace(/ *with *\([^)]+\) *{/, '\n').replace(/}}\s*;?\s*}/, '}}\n');
// minor cleanup
code = code.replace(/var __p;\s*__p/, 'var __p');
code = code
.replace(/obj *\|\| *\(obj *= *\{}\);/, '')
.replace(/var __p;\s*__p/, 'var __p');
// remove comments, including sourceURLs
code = code.replace(/\s*\/\/.*(?:\n|$)/g, '');