Commit Graph

12 Commits

Author SHA1 Message Date
alexlamsl
57777b6cfa Merge branch 'master' into harmony-2.8.0 2017-02-28 02:28:58 +08:00
Alex Lam S.L
858e6c78a4 warn & drop #__PURE__ iff IIFE is dropped (#1511)
- consolidate `side-effects` optimisations
- improve string `+` optimisation
- enhance literal & `conditionals` optimisations
2017-02-28 02:25:44 +08:00
alexlamsl
88a338f29e Merge branch 'master' into harmony-2.8.0 2017-02-27 04:37:48 +08:00
Alex Lam S.L
16cd5d57a5 consolidate evaluate & reduce_vars (#1505)
- improve marking efficiency
- apply smarter `const` replacement to `var`

fixes #1501
2017-02-26 00:40:33 +08:00
alexlamsl
4e49302916 enable collapse_vars & reduce_vars by default
- fix corner cases in `const` optimisation
- deprecate `/*@const*/`

fixes #1497
closes #1498
2017-02-24 01:46:57 +08:00
alexlamsl
974247c8c0 evaluate AST_SymbolRef as parameter
fix invalid boolean conversion now exposed in `make_node_from_constant()`

closes #1477
2017-02-21 13:29:58 +08:00
Richard van Velzen
4bd31607f6 Merge branch 'master' into harmony 2017-01-26 13:02:22 +01:00
Alex Lam S.L
0610c020b1 optimise 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`
2017-01-26 12:16:50 +01:00
Alex Lam S.L
0d7d4918eb augment 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 functions
2017-01-26 12:14:18 +01:00
Anthony Van de Gejuchte
6eaeb19a4a Add exponentiation operator 2016-06-22 12:23:37 +02:00
Richard van Velzen
bc49dfd27a Completely allow evaluating -0 2016-05-24 17:50:29 +02:00
Richard van Velzen
27eedbc302 Never produce -0 when evaluating expressions (like -"")
Fix for #1085. The major case was already there, but more expressions can result in -0.
2016-05-17 22:34:38 +02:00