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inline single-use functions that are not constant expressions

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fixes #2428
This commit is contained in:
alexlamsl 2017-11-05 18:24:20 +08:00
parent f46281e2b7
commit 8698e8254a
3 changed files with 44 additions and 6 deletions
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2
lib/compress.js
View File

@ -150,7 +150,9 @@ merge(Compressor.prototype, {
}
var passes = +this.options.passes || 1;
var last_count = 1 / 0;
var mangle = { ie8: this.option("ie8") };
for (var pass = 0; pass < passes; pass++) {
node.figure_out_scope(mangle);
if (pass > 0 || this.option("reduce_vars"))
node.reset_opt_flags(this);
node = node.transform(this);

10
lib/minify.js
View File

@ -137,11 +137,9 @@ function minify(files, options) {
if (options.wrap) {
toplevel = toplevel.wrap_commonjs(options.wrap);
}
if (timings) timings.scope1 = Date.now();
if (options.compress) toplevel.figure_out_scope(options.mangle);
if (timings) timings.compress = Date.now();
if (options.compress) toplevel = new Compressor(options.compress).compress(toplevel);
if (timings) timings.scope2 = Date.now();
if (timings) timings.scope = Date.now();
if (options.mangle) toplevel.figure_out_scope(options.mangle);
if (timings) timings.mangle = Date.now();
if (options.mangle) {
@ -199,9 +197,9 @@ function minify(files, options) {
if (timings) {
timings.end = Date.now();
result.timings = {
parse: 1e-3 * (timings.scope1 - timings.parse),
scope: 1e-3 * (timings.compress - timings.scope1 + timings.mangle - timings.scope2),
compress: 1e-3 * (timings.scope2 - timings.compress),
parse: 1e-3 * (timings.compress - timings.parse),
compress: 1e-3 * (timings.scope - timings.compress),
scope: 1e-3 * (timings.mangle - timings.scope),
mangle: 1e-3 * (timings.properties - timings.mangle),
properties: 1e-3 * (timings.output - timings.properties),
output: 1e-3 * (timings.end - timings.output),

38
test/compress/functions.js
View File

@ -508,3 +508,41 @@ issue_2114_2: {
}
expect_stdout: "2"
}
issue_2428: {
options = {
collapse_vars: true,
inline: true,
passes: 2,
pure_getters: "strict",
reduce_vars: true,
side_effects: true,
toplevel: true,
unsafe: true,
unused: true,
}
input: {
function bar(k) {
console.log(k);
}
function foo(x) {
return bar(x);
}
function baz(a) {
foo(a);
}
baz(42);
baz("PASS");
}
expect: {
function baz(a) {
console.log(a);
}
baz(42);
baz("PASS");
}
expect_stdout: [
"42",
"PASS",
]
}