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2017-02-21drop unused: toplevel, assign-only...- assign statement does not count towards variable usage by default - only works with assignments on the same scope level as declaration - can be disabled with `unused` set to "keep_assign" - `toplevel` to drop unused top-level variables and/or functions - `top_retain` to whitelist top-level exceptions closes #1450 alexlamsl
2017-02-21fix stray else in compress with conditionals=false...closes #1449 kzc
2017-02-18enable typeof "undefined" for general use...move out of unsafe, guard corner case with screw_id8 instead closes #1446 alexlamsl
2017-02-18fix corner case in keep_fnames...happens when inner function: - just below top level - not referenced - `unused` is disabled closes #1445 alexlamsl
2017-02-18remove unused AST_Scope.nesting & AST_SymbolRef.frame...they are computed but never used closes #1444 alexlamsl
2017-02-18fix crash in unsafe replacement of undefined...remove extraneous call to AST_SymbolRef.reference() closes #1443 alexlamsl
2017-02-18Improve optimizing `function() { if(c){return foo} bar();}`...closes #1437 Anthony Van de Gejuchte
2017-02-10in mangle_names there is a check that the variable name is legal and that it ...Anat Dagan
2017-01-26fix mangling collision with keep_fnames (#1431)...* fix mangling collision with keep_fnames fixes #1423 * pass mangle options to figure_out_scope() bring command-line in line with minify() Alex Lam S.L
2017-01-26optimise binary operands with evaluate() (#1427)...- remove call to evaluate() in is_constant() and let nested optimize() does its job instead - reject RegExp in is_constant() and remove special case logic under collapse_vars - operands to conditionals optimisation are now always evaluate()-ed - throw error in constant_value() instead of returning undefined to catch possible bugs, similar to make_node_from_constant() - optimise binary boolean operators under `evaluate` instead of `conditionals`Alex Lam S.L
2017-01-26augment evaluate to extract within objects (#1425)...- gated by `unsafe` - replaces previous optimisation specific to String.length - "123"[0] => 1 - [1, 2, 3][0] => 1 - [1, 2, 3].length => 3 - does not apply to objects with overridden prototype functionsAlex Lam S.L
2017-01-19add missing LHS cases which global_defs should avoidalexlamsl
2016-11-29Generate source map data from normalized files...If using `inSourceMap` this fix will ensure the copying of `sourcesContent` is based on potentially normalized `sources` values (https://github.com/mozilla/source-map/blob/master/lib/source-map-consumer.js#L304-L309). For example `normalize` (https://github.com/mozilla/source-map/blob/master/lib/util.js#L80-L123) will rewrite `./dist/mySource.js` to `dist/mySource.js` in the target `_sources` of the `SourceMapConsumer`. As a result `orig_map.sourceContentFor(source, true);` would return `null` since the orginal `source` was no longer available in the consumer. By using the keys generating from the `SourceMapConsumer.constructor` consistency is ensured. Martijn Swaagman
2016-11-29Add --mangle-props-debug and fix --mangle-props=unquoted collision...Patch by @AshleyScirra Based on: PR #1316 Renamed the CLI debug option to --mangle-props-debug Fixes: #1321 name collision in --mangle-props=unquoted Ashley (Scirra)
2016-11-29Do not overwrite options.comments + cleanupAnthony Van de Gejuchte
2016-10-23Don't filter shebangs when using the 'some' comment filter...Also clarify documentation a bit more about using regexp as filter Anthony Van de Gejuchte
2016-10-23fix uses_arguments handling (broken since 6605d1578351)...Using the symbol declaration tracking of UglifyJS doesn't make sense here anyway, `arguments` always comes from something in the current scope. fixes #1299 Jann Horn
2016-10-06Remove console.log and add extra test caseRichard van Velzen
2016-10-06Add an option to wrap IIFEs in parenthesis...For #1307. Richard van Velzen
2016-10-06Fix (typeof side_effect()) in boolean context...Fixes #1289 with suggestion by @rvanvelzen kzc
2016-10-01Optimize unmodified variablesalexlamsl
2016-09-06Make all comment options in cli available in js api...Also removing more code within "loop" while at it. Anthony Van de Gejuchte
2016-09-01Account for side effects in `string + expr` optimizationkzc
2016-08-30implement optimization: (x = 2 * x) ---> (x *= 2)kzc
2016-08-17Fix negate_iife transform to return a correct tree for nested IIFEs...Fix for #1256, partially reverts d854523783b4 Richard van Velzen
2016-08-17Fix negate_iife regression #1254kzc
2016-08-14Fix --mangle-props and --mangle-props=unquoted...Fixes: #1247 Fix --mangle-props and --name-cache inconsistency. AST_Dot and AST_Sub properties are now mangled by --mangle-props without regard to being used in an assignment statement. Note: if --mangle-props is used then *all* javascript files used must be uglified with the same mangle options. Fix the ignore_quoted=true mangle option, also known as `--mangle-props=unquoted`. If a given property is quoted anywhere it will not be mangled in any quoted or non-quoted context. kzc
2016-08-14Fix unneeded parens around unary args in new expression.kzc
2016-07-21Legacy octal integer strict mode fixesAnthony Van de Gejuchte
2016-07-17lib/sourcemap.js: Copy sourceContent from old souce-map to the new source-map...Lauri Pokka
2016-07-15Keep const in own scope while compressing...- Fixes #1205 - Fix provided by @kzc Anthony Van de Gejuchte
2016-07-15Fix mangle with option keep_fnames=true for Safari....Fixes: #1202 kzc
2016-07-15Fix error style for regex errorsAnthony Van de Gejuchte
2016-07-03Don't convert all strings to directives from moz-astAnthony Van de Gejuchte
2016-07-01Change the default sequences limit to 200 to speed up compress....Has little or no impact on minification size in the majority of cases but can speed up rollup builds significantly. This sequences change also has the beneficial side effect of avoiding "stack size exceeded" errors on very large input files. The user is free to alter the sequences limit if they are so inclined. The previous sequences limit was 2000. 20 is often sufficient. kzc
2016-07-01Allow sequences maximum length to be user configurable.kzc
2016-06-30Various LineTerminator changes...* Escaped newlines should also produce SyntaxError * Fix multiline comment parsing and add tests * Adapt makePredicate to handle \u2028 and \u2029 * Move up nlb check in regex so it's checked before any escape handling * Change error messages to conform ecma standard * Find_eol not recornizing \u2028 and \u2029 as line terminator * Remove \u180e as it is removed in unicode 6.3.0 from the category zs Anthony Van de Gejuchte
2016-06-30Enable --screw-ie8 by default....catch identifier is mangled correctly for ES5 standards-compliant JS engines by default. Unconditionally use the ie8 if/do-while workaround whether or not --screw-ie8 is enabled. To support non-standard ie8 javascript use: uglifyjs --support-ie8 kzc
2016-06-30Fix spidermonkey AST (ESTree) export and import, Array holes...Fixes: #1156 #1161 Also add test to exercise Uglify after spidermonkey export/import of itself. kzc
2016-06-30Move OctalEscapeSequence to read_escape_char...This should simplify and improve implementation, make it easier to implement template strings, and keep master a bit more in sync with harmony. Previous implementation wasn't broken, though the loop gave me the impression it could read infinite numbers and annoyed me a bit. It was also slightly unnecessary because the lookup involved only 3 characters. Anthony Van de Gejuchte
2016-06-21Fix conditional expressions of form (x ? -1 : -1)...Fixes #1154, #1153 kzc
2016-06-21Don't replace undefined, NaN and Infinity within with scopekzc
2016-06-20Keep master in sync with harmony... * Do not mangle when no mangle is required * Improve use_asm reset while printing code Anthony Van de Gejuchte
2016-06-19Respect quote style in object literals...The option added in fbbaa42ee55a7f753f7cab9b1a905ccf73cf26d5 wasn't being respected inside object literals, so quoted property names would still be stripped out with this option. This is mostly a corner-case, but useful when the output is passed to something like the Closure compiler, where quoted property names can be used to prevent mangling. Shrey Banga
2016-06-19Normalize error messagesAnthony Van de Gejuchte
2016-06-19Don't mix strings with directives in output... * Don't interpret strings with escaped content as directive * Don't interpret strings after empty statement as directive * Adapt output to prevent strings being represent as directive * Introduce UGLIFY_DEBUG to allow internal testing like EXPECT_DIRECTIVE Anthony Van de Gejuchte
2016-06-15Fix test262 failures related to <, <=, in and instanceof...Fixed-by: @kzc Anthony Van de Gejuchte
2016-06-12Re-add parens after new expression in beautify modeAnthony Van de Gejuchte
2016-06-12Don't allow with statements in strict modeAnthony Van de Gejuchte
2016-06-12Stop dropping args in new expressionsAnthony Van de Gejuchte