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2013-01-23Fix #105: property comparison to undefined is not always safeRichard Gibson
2013-01-17Fix output for arrays containing undefined values....1b6bcca7 was a first attempt at this. That commit made Uglify stop replacing holes with undefined, but instead it started replacing undefined with holes. This is slightly problematic, because there is a difference between a hole and an undefined value. More problematically, it changed [1,undefined] to [1,] which generally doesn't even parse as a hole (just as a trailing comma), so it didn't even preserve the length of the array! Instead, parse holes as their own special AST node which prints invisibly. David Glasser
2012-11-30Add test for issue #59Mihai Bazon
2012-11-14better solution for the last test in constant switch foldingMihai Bazon
2012-11-14optimize constant switch blocks...ref. mishoo/UglifyJS#441 Mihai Bazon
2012-11-12fix invalid AST produced by dropping unused variable...close #44 Mihai Bazon
2012-11-08optimization for if/break as first statement in a loop body... for(...; x; ...) if (y) break; → for(...; x&&!y; ...); similarly for `while` and some combinations (i.e. the `break` appears in the `else` clause, etc.) Mihai Bazon
2012-10-30don't move expressions containing the binary `in` operator into the `for` ini......(opera can't parse it) close #25 Mihai Bazon
2012-10-24fix for `if (...) return; else return ...;`...(it was assumed that the first `return` always contains a value) close #22 Mihai Bazon
2012-10-22more sequence optimizations (lift some sequences above binary/unary expressio...Mihai Bazon
2012-10-18more optimizations for some break/continue casesMihai Bazon
2012-10-13disable warnings in the test suiteMihai Bazon
2012-10-13drop unused function arguments...also add test for "drop_unused" (the last one fails for now) Mihai Bazon
2012-10-12actually enable the option that drops unused names in the test of issue #12Mihai Bazon
2012-10-12add test for issue #12Mihai Bazon
2012-10-03AST cleanup (dropped AST_StatementBase)Mihai Bazon
2012-10-03added option for side-effect-free statements, fix testMihai Bazon
2012-10-03disable `hoist_vars` by default and change `comparations` to `comparisons`Mihai Bazon
2012-09-26removed the "squeeze" method (it's now effectively "transform")Mihai Bazon
2012-09-24minor tests fixMihai Bazon
2012-09-17minorMihai Bazon
2012-09-17one more test for sequencesMihai Bazon
2012-09-16rewrite handle_if_return...optimizations of if/return/continue seem to be even better now Mihai Bazon
2012-09-13few more optimizations:...- do multiple passes in tighten_body if it was changed - transform if (foo) return x; return y; ==> return foo?x:y - don't optimize !0 as true (use best_of after evaluation of constant expr) With hoist_vars off we now beat UglifyJS v1 on jQuery-1.8.1 Mihai Bazon
2012-09-12minorMihai Bazon
2012-09-12fixed run-tests and an issue about reversing the condition in AST_IfMihai Bazon
2012-09-10more progress on the compressor (WIP)Mihai Bazon
2012-09-07checkpointMihai Bazon
2012-09-07always keep declarations found in unreachable code...a few more tests and some cleanups. Mihai Bazon
2012-09-07fixed tests (need to drop the toplevel block in "expected" if it's a single s...Mihai Bazon
2012-09-03a LabeledStatement should be in fact a StatementWithBody...This fixes output for: if (foo) { moo: if (bar) { break moo; } } else { baz(); } (the labeled statement must be outputted inside brackets) Mihai Bazon
2012-08-27minorMihai Bazon
2012-08-22wrote more of the compressor and added some testsMihai Bazon
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