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feat(es/minifier): Skip function declarations in sequential inliner (#6147)

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Donny/강동윤 2022-10-18 11:51:05 +09:00 committed by GitHub
parent b197a62b5e
commit f2e8f98d38
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10 changed files with 95 additions and 26 deletions
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3
crates/swc/tests/tsc-references/genericCallWithObjectTypeArgsAndConstraints5.2.minified.js
View File

@ -1,10 +1,9 @@
//// [genericCallWithObjectTypeArgsAndConstraints5.ts]
var c, d;
function foo(t, t2) {
return function(x) {
return t2;
};
}
foo(d, c), foo(function() {
foo(void 0, void 0), foo(function() {
return 1;
}, function() {});

4
crates/swc/tests/tsc-references/tsxStatelessFunctionComponentOverload5.2.minified.js
View File

@ -13,14 +13,14 @@ define([
get: function() {
return MainButton;
}
}), _extends = _extends.default;
});
var obj3, obj0 = {
to: "world"
};
function MainButton(props) {
return props.to ? this._buildMainLink(props) : this._buildMainButton(props);
}
_extends({
(_extends = _extends.default)({
onClick: function(e) {}
}, obj0), _extends({}, {
to: "10000"

4
crates/swc/tests/tsc-references/tsxStatelessFunctionComponentOverload6.2.minified.js
View File

@ -13,7 +13,7 @@ define([
get: function() {
return MainButton;
}
}), _extends = _extends.default;
});
var obj1, obj = {
children: "hi",
to: "boo"
@ -21,7 +21,7 @@ define([
function MainButton(props) {
return props.to ? this._buildMainLink(props) : this._buildMainButton(props);
}
_extends({}, obj), _extends({}, {
(_extends = _extends.default)({}, obj), _extends({}, {
to: 10000
}, obj), _extends({}, obj1), _extends({}, obj1, {
to: "/to/somewhere"

71
crates/swc_ecma_minifier/src/compress/optimize/sequences.rs
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@ -591,6 +591,26 @@ where
vec![Mergable::Expr(&mut s.arg)]
}
Stmt::Decl(Decl::Fn(f)) => {
// Check for side effects
if !f.function.decorators.is_empty() {
return None;
}
for p in &f.function.params {
if !p.decorators.is_empty() {
return None;
}
if !self.is_pat_skippable_for_seq(None, &p.pat) {
return None;
}
}
// Side-effect free function can be skipped.
vec![]
}
_ => return None,
})
}
@ -948,6 +968,57 @@ where
Ok(())
}
fn is_pat_skippable_for_seq(&mut self, a: Option<&Mergable>, p: &Pat) -> bool {
match p {
Pat::Ident(_) => true,
Pat::Invalid(_) => false,
Pat::Array(p) => {
for elem in p.elems.iter().flatten() {
if !self.is_pat_skippable_for_seq(a, elem) {
return false;
}
}
true
}
Pat::Rest(p) => {
if !self.is_pat_skippable_for_seq(a, &p.arg) {
return false;
}
true
}
Pat::Object(p) => {
for prop in &p.props {
match prop {
ObjectPatProp::KeyValue(KeyValuePatProp { value, key, .. }) => {
if let PropName::Computed(key) = key {
if !self.is_skippable_for_seq(a, &key.expr) {
return false;
}
}
if !self.is_pat_skippable_for_seq(a, value) {
return false;
}
}
ObjectPatProp::Assign(AssignPatProp { .. }) => return false,
ObjectPatProp::Rest(RestPat { arg, .. }) => {
if !self.is_pat_skippable_for_seq(a, arg) {
return false;
}
}
}
}
true
}
Pat::Assign(..) => false,
Pat::Expr(e) => self.is_skippable_for_seq(a, e),
}
}
#[cfg_attr(feature = "debug", tracing::instrument(skip_all))]
fn is_skippable_for_seq(&self, a: Option<&Mergable>, e: &Expr) -> bool {
if self.ctx.in_try_block {

14
crates/swc_ecma_minifier/tests/benches-full/echarts.js
View File

@ -35410,12 +35410,6 @@
'OTransform',
'MozTransform',
'msTransform'
]), TRANSITION_VENDOR = testStyle([
'webkitTransition',
'transition',
'OTransition',
'MozTransition',
'msTransition'
]);
function toCSSVendorPrefix(styleVendor, styleProp) {
if (!styleVendor) return styleProp;
@ -35427,7 +35421,13 @@
var stl = el.currentStyle || document.defaultView && document.defaultView.getComputedStyle(el);
return stl ? style ? stl[style] : stl : null;
}
var CSS_TRANSITION_VENDOR = toCSSVendorPrefix(TRANSITION_VENDOR, 'transition'), CSS_TRANSFORM_VENDOR = toCSSVendorPrefix(TRANSFORM_VENDOR, 'transform'), gCssText = "position:absolute;display:block;border-style:solid;white-space:nowrap;z-index:9999999;" + (env1.transform3dSupported ? 'will-change:transform;' : '');
var CSS_TRANSITION_VENDOR = toCSSVendorPrefix(testStyle([
'webkitTransition',
'transition',
'OTransition',
'MozTransition',
'msTransition'
]), 'transition'), CSS_TRANSFORM_VENDOR = toCSSVendorPrefix(TRANSFORM_VENDOR, 'transform'), gCssText = "position:absolute;display:block;border-style:solid;white-space:nowrap;z-index:9999999;" + (env1.transform3dSupported ? 'will-change:transform;' : '');
function assembleTransform(x, y, toString) {
var x0 = x.toFixed(0) + 'px', y0 = y.toFixed(0) + 'px';
if (!env1.transformSupported) return toString ? "top:" + y0 + ";left:" + x0 + ";" : [

7
crates/swc_ecma_minifier/tests/benches-full/terser.js
View File

@ -4321,9 +4321,6 @@
function next_indent() {
return indentation + options.indent_level;
}
var add_mapping = mappings ? function(token, name) {
mapping_token = token, mapping_name = name;
} : noop;
function get() {
return might_add_newline && ensure_line_len(), OUTPUT.toString();
}
@ -4408,7 +4405,9 @@
var ret = cont();
return print("]"), ret;
},
add_mapping: add_mapping,
add_mapping: mappings ? function(token, name) {
mapping_token = token, mapping_name = name;
} : noop,
option: function(opt) {
return options[opt];
},

4
crates/swc_ecma_minifier/tests/fixture/issues/2257/full/output.js
View File

@ -1952,12 +1952,12 @@
},
11864: function(module, __unused_webpack_exports, __webpack_require__) {
"use strict";
var utils = __webpack_require__(99677), bind = __webpack_require__(81470), Axios = __webpack_require__(250), mergeConfig = __webpack_require__(10882), defaults = __webpack_require__(52275);
var utils = __webpack_require__(99677), bind = __webpack_require__(81470), Axios = __webpack_require__(250), mergeConfig = __webpack_require__(10882);
function createInstance(defaultConfig) {
var context = new Axios(defaultConfig), instance = bind(Axios.prototype.request, context);
return utils.extend(instance, Axios.prototype, context), utils.extend(instance, context), instance;
}
var axios = createInstance(defaults);
var axios = createInstance(__webpack_require__(52275));
axios.Axios = Axios, axios.create = function(instanceConfig) {
return createInstance(mergeConfig(axios.defaults, instanceConfig));
}, axios.Cancel = __webpack_require__(69651), axios.CancelToken = __webpack_require__(88149), axios.isCancel = __webpack_require__(37606), axios.all = function(promises) {

8
crates/swc_ecma_minifier/tests/fixture/next/wrap-contracts/output.js
View File

@ -5972,14 +5972,14 @@
},
1609: function(module, __unused_webpack_exports, __webpack_require__) {
"use strict";
var utils = __webpack_require__(4867), bind = __webpack_require__(1849), Axios = __webpack_require__(321), mergeConfig = __webpack_require__(7185), defaults = __webpack_require__(5546);
var utils = __webpack_require__(4867), bind = __webpack_require__(1849), Axios = __webpack_require__(321), mergeConfig = __webpack_require__(7185);
function createInstance(defaultConfig) {
var context = new Axios(defaultConfig), instance = bind(Axios.prototype.request, context);
return utils.extend(instance, Axios.prototype, context), utils.extend(instance, context), instance.create = function(instanceConfig) {
return createInstance(mergeConfig(defaultConfig, instanceConfig));
}, instance;
}
var axios = createInstance(defaults);
var axios = createInstance(__webpack_require__(5546));
axios.Axios = Axios, axios.CanceledError = __webpack_require__(644), axios.CancelToken = __webpack_require__(4972), axios.isCancel = __webpack_require__(6502), axios.VERSION = __webpack_require__(7288).version, axios.toFormData = __webpack_require__(7675), axios.AxiosError = __webpack_require__(723), axios.Cancel = axios.CanceledError, axios.all = function(promises) {
return Promise.all(promises);
}, axios.spread = __webpack_require__(8713), axios.isAxiosError = __webpack_require__(6268), module.exports = axios, module.exports.default = axios;
@ -6037,11 +6037,11 @@
},
644: function(module, __unused_webpack_exports, __webpack_require__) {
"use strict";
var AxiosError = __webpack_require__(723), utils = __webpack_require__(4867);
var AxiosError = __webpack_require__(723);
function CanceledError(message) {
AxiosError.call(this, null == message ? 'canceled' : message, AxiosError.ERR_CANCELED), this.name = 'CanceledError';
}
utils.inherits(CanceledError, AxiosError, {
__webpack_require__(4867).inherits(CanceledError, AxiosError, {
__CANCEL__: !0
}), module.exports = CanceledError;
},

2
crates/swc_ecma_minifier/tests/pass-1/seq/1/output.js
View File

@ -89,4 +89,4 @@ function unix() {
function toDate() {
return new Date(this.valueOf());
}
console.log(MS_PER_400_YEARS);
console.log(3506328 * (60 * (60 * 1000)));

4
crates/swc_ecma_minifier/tests/projects/output/jquery.mobile-1.4.2.js
View File

@ -1053,11 +1053,11 @@
}), $.event.special.scrollstart = {
enabled: !0,
setup: function() {
var scrolling, timer, thisObject = this, $this = $(thisObject);
var scrolling, timer, thisObject = this;
function trigger(event1, state) {
triggerCustomEvent(thisObject, (scrolling = state) ? "scrollstart" : "scrollstop", event1);
}
$this.bind(scrollEvent, function(event1) {
$(thisObject).bind(scrollEvent, function(event1) {
$.event.special.scrollstart.enabled && (scrolling || trigger(event1, !0), clearTimeout(timer), timer = setTimeout(function() {
trigger(event1, !1);
}, 50));