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implement compress option reduce_funcs (#2466)

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- inline single-use function declarations as expressions when permissible
- depend on `reduce_vars`
- enabled by default
- disable for speed critical code

fixes #2464
This commit is contained in:
Alex Lam S.L
2017-11-11 05:59:35 +08:00
committed by GitHub
parent 94525d859f
commit 3c74047368
22 changed files with 335 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
README.md
View File

@@ -689,6 +689,11 @@ If you're using the `X-SourceMap` header instead, you can just omit `sourceMap.u
Specify `"strict"` to treat `foo.bar` as side-effect-free only when
`foo` is certain to not throw, i.e. not `null` or `undefined`.
- `reduce_funcs` (default: `true`) -- Allows single-use functions
to be inlined as function expressions when permissible.
Enabled by default. Option depends on `reduce_vars` being enabled.
For speed critical code this option should be disabled.
- `reduce_vars` (default: `true`) -- Improve optimization on variables assigned with and
used as constant values.

2
lib/compress.js
View File

@@ -75,6 +75,7 @@ function Compressor(options, false_by_default) {
properties : !false_by_default,
pure_getters : !false_by_default && "strict",
pure_funcs : null,
reduce_funcs : !false_by_default,
reduce_vars : !false_by_default,
sequences : !false_by_default,
side_effects : !false_by_default,
@@ -4255,6 +4256,7 @@ merge(Compressor.prototype, {
var fixed = self.fixed_value();
if (fixed instanceof AST_Defun) {
d.fixed = fixed = make_node(AST_Function, fixed, fixed);
if (!compressor.option("reduce_funcs")) d.single_use = false;
}
if (d.single_use && fixed instanceof AST_Function) {
if (d.escaped && d.scope !== self.scope || recursive_ref(compressor, d)) {

4
test/compress/arrays.js
View File

@@ -129,6 +129,7 @@ constant_join_3: {
for_loop: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
unsafe: true,
unused: true,
@@ -185,6 +186,7 @@ for_loop: {
index: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -203,6 +205,7 @@ index: {
length: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -221,6 +224,7 @@ length: {
index_length: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,

42
test/compress/collapse_vars.js
View File

@@ -2,7 +2,8 @@ collapse_vars_side_effects_1: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1() {
@@ -150,7 +151,8 @@ collapse_vars_issue_721: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
define(["require", "exports", 'handlebars'], function (require, exports, hb) {
@@ -216,7 +218,8 @@ collapse_vars_properties: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1(obj) {
@@ -243,7 +246,8 @@ collapse_vars_if: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1() {
@@ -293,7 +297,8 @@ collapse_vars_while: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:false, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1(y) {
@@ -712,7 +717,8 @@ collapse_vars_misc1: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f0(o, a, h) {
@@ -789,7 +795,8 @@ collapse_vars_repeated: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1() {
@@ -831,7 +838,8 @@ collapse_vars_closures: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function constant_vars_can_be_replaced_in_any_scope() {
@@ -921,7 +929,8 @@ collapse_vars_try: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1() {
@@ -1118,7 +1127,8 @@ collapse_vars_constants: {
options = {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true, reduce_vars:true
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
reduce_funcs: true, reduce_vars:true
}
input: {
function f1(x) {
@@ -1156,7 +1166,7 @@ collapse_vars_arguments: {
collapse_vars:true, sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true,
toplevel:true, reduce_vars:true
toplevel:true, reduce_funcs: true, reduce_vars:true
}
input: {
var outer = function() {
@@ -1280,6 +1290,7 @@ collapse_vars_regexp: {
hoist_funs: true,
keep_fargs: true,
loops: false,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -1355,6 +1366,7 @@ issue_1562: {
options = {
collapse_vars: true,
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -1611,6 +1623,7 @@ var_side_effects_3: {
reduce_vars_assign: {
options = {
collapse_vars: true,
reduce_funcs: true,
reduce_vars: true,
}
input: {
@@ -1633,6 +1646,7 @@ reduce_vars_assign: {
iife_1: {
options = {
collapse_vars: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -1653,6 +1667,7 @@ iife_1: {
iife_2: {
options = {
collapse_vars: true,
reduce_funcs: false,
reduce_vars: false,
toplevel: true,
unused: false,
@@ -2105,6 +2120,7 @@ unused_orig: {
options = {
collapse_vars: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -2143,6 +2159,7 @@ issue_315: {
collapse_vars: true,
evaluate: true,
keep_fargs: false,
reduce_funcs: true,
reduce_vars: true,
sequences: true,
unused: true,
@@ -2369,6 +2386,7 @@ duplicate_argname: {
issue_2298: {
options = {
collapse_vars: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -2734,6 +2752,7 @@ issue_2364_5: {
evaluate: true,
pure_getters: true,
properties: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -3037,6 +3056,7 @@ issue_2437: {
inline: true,
join_vars: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
sequences: true,

1
test/compress/comparing.js
View File

@@ -96,6 +96,7 @@ self_comparison_1: {
self_comparison_2: {
options = {
comparisons: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
}

2
test/compress/dead-code.js
View File

@@ -292,6 +292,7 @@ global_timeout_and_interval_symbols: {
issue_2233_2: {
options = {
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unsafe: true,
@@ -323,6 +324,7 @@ issue_2233_2: {
issue_2233_3: {
options = {
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,

5
test/compress/drop-unused.js
View File

@@ -673,6 +673,7 @@ issue_1539: {
vardef_value: {
options = {
keep_fnames: false,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -734,6 +735,7 @@ assign_chain: {
issue_1583: {
options = {
keep_fargs: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -1080,6 +1082,7 @@ var_catch_toplevel: {
options = {
conditionals: true,
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,
@@ -1114,6 +1117,7 @@ issue_2105_1: {
collapse_vars: true,
inline: true,
passes: 3,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -1156,6 +1160,7 @@ issue_2105_2: {
passes: 3,
properties: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unsafe: true,

11
test/compress/evaluate.js
View File

@@ -251,6 +251,7 @@ unsafe_constant: {
unsafe_object: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -279,6 +280,7 @@ unsafe_object: {
unsafe_object_nested: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -307,6 +309,7 @@ unsafe_object_nested: {
unsafe_object_complex: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -335,6 +338,7 @@ unsafe_object_complex: {
unsafe_object_repeated: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -363,6 +367,7 @@ unsafe_object_repeated: {
unsafe_object_accessor: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
unsafe: true,
}
@@ -663,6 +668,7 @@ call_args: {
options = {
evaluate: true,
inline: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
}
@@ -686,6 +692,7 @@ call_args_drop_param: {
evaluate: true,
inline: true,
keep_fargs: false,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -1016,6 +1023,7 @@ Infinity_NaN_undefined_LHS: {
issue_1964_1: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
unsafe_regexp: false,
unused: true,
@@ -1045,6 +1053,7 @@ issue_1964_1: {
issue_1964_2: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
unsafe_regexp: true,
unused: true,
@@ -1201,6 +1210,7 @@ issue_2231_2: {
self_comparison_1: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unsafe: true,
@@ -1221,6 +1231,7 @@ self_comparison_2: {
evaluate: true,
hoist_props: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,

8
test/compress/functions.js
View File

@@ -19,6 +19,7 @@ iifes_returning_constants_keep_fargs_true: {
booleans : true,
if_return : true,
join_vars : true,
reduce_funcs : true,
reduce_vars : true,
cascade : true,
inline : true,
@@ -55,6 +56,7 @@ iifes_returning_constants_keep_fargs_false: {
booleans : true,
if_return : true,
join_vars : true,
reduce_funcs : true,
reduce_vars : true,
cascade : true,
inline : true,
@@ -101,6 +103,7 @@ issue_1841_1: {
options = {
keep_fargs: false,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -127,6 +130,7 @@ issue_1841_2: {
options = {
keep_fargs: false,
pure_getters: false,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -154,6 +158,7 @@ function_returning_constant_literal: {
inline: true,
passes: 2,
properties: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,
@@ -305,6 +310,7 @@ issue_2084: {
evaluate: true,
inline: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,
@@ -340,6 +346,7 @@ issue_2084: {
issue_2097: {
options = {
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -515,6 +522,7 @@ issue_2428: {
inline: true,
passes: 3,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,

14
test/compress/hoist_props.js
View File

@@ -3,6 +3,7 @@ issue_2377_1: {
evaluate: true,
inline: true,
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -35,6 +36,7 @@ issue_2377_2: {
inline: true,
hoist_props: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -66,6 +68,7 @@ issue_2377_3: {
inline: true,
hoist_props: true,
passes: 3,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -92,6 +95,7 @@ issue_2377_3: {
direct_access_1: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -120,6 +124,7 @@ direct_access_1: {
direct_access_2: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -143,6 +148,7 @@ direct_access_2: {
direct_access_3: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -163,6 +169,7 @@ direct_access_3: {
single_use: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -187,6 +194,7 @@ single_use: {
name_collision_1: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
}
@@ -224,6 +232,7 @@ name_collision_1: {
name_collision_2: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
}
@@ -257,6 +266,7 @@ name_collision_2: {
name_collision_3: {
options = {
hoist_props: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
}
@@ -293,6 +303,7 @@ contains_this_1: {
hoist_props: true,
inline: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -318,6 +329,7 @@ contains_this_2: {
hoist_props: true,
inline: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -345,6 +357,7 @@ contains_this_3: {
hoist_props: true,
inline: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -376,6 +389,7 @@ new_this: {
hoist_props: true,
inline: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,

2
test/compress/issue-1041.js
View File

@@ -1,6 +1,7 @@
const_pragma: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
};
@@ -16,6 +17,7 @@ const_pragma: {
not_const: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
};

2
test/compress/issue-1609.js
View File

@@ -2,6 +2,7 @@ chained_evaluation_1: {
options = {
collapse_vars: true,
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -28,6 +29,7 @@ chained_evaluation_2: {
options = {
collapse_vars: true,
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}

1
test/compress/issue-1656.js
View File

@@ -15,6 +15,7 @@ f7: {
negate_iife: true,
passes: 3,
properties: true,
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,

5
test/compress/issue-1673.js
View File

@@ -1,5 +1,6 @@
side_effects_catch: {
options = {
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -34,6 +35,7 @@ side_effects_catch: {
side_effects_else: {
options = {
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -62,6 +64,7 @@ side_effects_else: {
side_effects_finally: {
options = {
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -98,6 +101,7 @@ side_effects_finally: {
side_effects_label: {
options = {
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -130,6 +134,7 @@ side_effects_label: {
side_effects_switch: {
options = {
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,

1
test/compress/issue-1787.js
View File

@@ -2,6 +2,7 @@ unary_prefix: {
options = {
evaluate: true,
inline: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}

4
test/compress/issue-1833.js
View File

@@ -1,6 +1,7 @@
iife_for: {
options = {
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -26,6 +27,7 @@ iife_for: {
iife_for_in: {
options = {
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -51,6 +53,7 @@ iife_for_in: {
iife_do: {
options = {
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -80,6 +83,7 @@ iife_do: {
iife_while: {
options = {
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,

5
test/compress/issue-281.js
View File

@@ -3,6 +3,7 @@ collapse_vars_constants: {
collapse_vars: true,
evaluate: true,
inline: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -240,6 +241,7 @@ negate_iife_issue_1073: {
evaluate: true,
inline: true,
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
sequences: true,
unused: true,
@@ -267,6 +269,7 @@ issue_1288_side_effects: {
evaluate: true,
inline: true,
negate_iife: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -299,6 +302,7 @@ inner_var_for_in_1: {
options = {
evaluate: true,
inline: true,
reduce_funcs: true,
reduce_vars: true,
}
input: {
@@ -330,6 +334,7 @@ issue_1595_3: {
evaluate: true,
inline: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}

3
test/compress/properties.js
View File

@@ -833,6 +833,7 @@ lhs_prop_2: {
evaluate: true,
inline: true,
properties: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
unused: true,
@@ -879,6 +880,7 @@ prop_side_effects_1: {
evaluate: true,
inline: true,
properties: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,
@@ -915,6 +917,7 @@ prop_side_effects_2: {
inline: true,
passes: 2,
properties: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,

12
test/compress/pure_getters.js
View File

@@ -1,6 +1,7 @@
strict: {
options = {
pure_getters: "strict",
reduce_funcs: false,
reduce_vars: false,
side_effects: true,
toplevel: true,
@@ -30,6 +31,7 @@ strict: {
strict_reduce_vars: {
options = {
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,
@@ -58,6 +60,7 @@ strict_reduce_vars: {
unsafe: {
options = {
pure_getters: true,
reduce_funcs: false,
reduce_vars: false,
side_effects: true,
toplevel: true,
@@ -84,6 +87,7 @@ unsafe: {
unsafe_reduce_vars: {
options = {
pure_getters: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
toplevel: true,
@@ -185,6 +189,7 @@ issue_2110_1: {
pure_getters: "strict",
sequences: true,
side_effects: true,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -215,6 +220,7 @@ issue_2110_2: {
options = {
collapse_vars: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -247,6 +253,7 @@ set_immutable_1: {
collapse_vars: true,
evaluate: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -270,6 +277,7 @@ set_immutable_2: {
cascade: true,
conditionals: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,
@@ -293,6 +301,7 @@ set_immutable_3: {
collapse_vars: true,
evaluate: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
@@ -318,6 +327,7 @@ set_immutable_4: {
cascade: true,
conditionals: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,
@@ -343,6 +353,7 @@ set_mutable_1: {
collapse_vars: true,
evaluate: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
@@ -367,6 +378,7 @@ set_mutable_2: {
cascade: true,
conditionals: true,
pure_getters: "strict",
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,

215
test/compress/reduce_vars.js
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File diff suppressed because it is too large Load Diff

1
test/compress/screw-ie8.js
View File

@@ -187,6 +187,7 @@ dont_screw_try_catch_undefined: {
reduce_vars: {
options = {
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
ie8: true,
unused: true,

1
test/compress/switch.js
View File

@@ -714,6 +714,7 @@ issue_1705_2: {
options = {
dead_code: true,
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,