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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
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8
test/compress/functions.js
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@@ -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,