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https://github.com/swc-project/swc.git
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feat(es/minifier): Turn Array/Object calls into literals (#4947)
This commit is contained in:
Austaras
GitHub
parent
461b9902b3
commit
47bdc6a6b1
@ -1,5 +1,5 @@
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var A;
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!function(A1) {
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var beez;
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A1.beez2 = Array(), A1.beez = beez;
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A1.beez2 = [], A1.beez = beez;
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}(A || (A = {}));
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@ -5,5 +5,5 @@ import _class_call_check from "@swc/helpers/lib/_class_call_check.js";
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"use strict";
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_class_call_check(this, B);
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};
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A1.beez2 = Array(), A1.beez = beez;
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A1.beez2 = [], A1.beez = beez;
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}(A || (A = {}));
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@ -20,11 +20,13 @@ var a1 = [
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var a2 = [
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,
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,
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,
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].concat(_to_consumable_array(a0), [
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"hello"
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]);
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var a3 = [
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,
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,
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].concat(_to_consumable_array(a0));
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var a4 = [
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function() {
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@ -9,10 +9,12 @@ var a0 = [
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[
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,
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,
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,
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].concat(_to_consumable_array(a0), [
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"hello"
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]), [
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,
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,
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].concat(_to_consumable_array(a0)), _to_consumable_array(a0).concat([
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,
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]);
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@ -21,11 +21,13 @@ var a1 = [
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var a2 = [
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,
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,
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,
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].concat(_to_consumable_array(a0), [
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"hello"
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]);
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var a3 = [
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,
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,
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].concat(_to_consumable_array(a0));
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var a4 = [
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function() {
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@ -8,10 +8,12 @@ var a0 = [
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], a2 = [
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,
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,
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,
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].concat(_to_consumable_array(a0), [
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"hello"
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]), a3 = [
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,
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,
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].concat(_to_consumable_array(a0));
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_to_consumable_array(a0).concat([
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,
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@ -1,2 +1,2 @@
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function foo(t) {}
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foo(1), foo(null), foo(new Object()), foo(1), foo(new Date());
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foo(1), foo(null), foo({}), foo(1), foo(new Date());
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@ -1,2 +1,2 @@
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function foo(t) {}
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foo(1), foo(null), foo(new Object()), foo(1), foo(new Date());
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foo(1), foo(null), foo({}), foo(1), foo(new Date());
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@ -1,7 +1,7 @@
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var E, F, x;
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function foo(x, a, b) {}
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function foo2(x, a, b) {}
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foo('', (x)=>'', (x)=>null), foo('', (x)=>'', (x)=>null), foo('', (x)=>'', (x)=>''), foo(null, (x)=>'', (x)=>''), foo(null, (x)=>'', (x)=>''), foo(new Object(), (x)=>'', (x)=>''), function(E) {
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foo('', (x)=>'', (x)=>null), foo('', (x)=>'', (x)=>null), foo('', (x)=>'', (x)=>''), foo(null, (x)=>'', (x)=>''), foo(null, (x)=>'', (x)=>''), foo({}, (x)=>'', (x)=>''), function(E) {
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E[E.A = 0] = "A";
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}(E || (E = {})), function(F) {
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F[F.A = 0] = "A";
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@ -21,7 +21,7 @@ foo("", function(x) {
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return "";
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}, function(x) {
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return "";
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}), foo(new Object(), function(x) {
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}), foo({}, function(x) {
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return "";
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}, function(x) {
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return "";
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@ -1,8 +1,25 @@
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runTestCase(function() {
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var a = Array(!1, void 0, null, "0", {
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toString: function() {
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return 0;
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}
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}, -1.3333333333333, "str", -0, !0, 0, 1, 1, 0, !1, -4 / 3, -4 / 3);
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var a = [
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!1,
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void 0,
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null,
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"0",
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{
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toString: function() {
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return 0;
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}
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},
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-1.3333333333333,
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"str",
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-0,
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!0,
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0,
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1,
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1,
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0,
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!1,
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-4 / 3,
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-4 / 3
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];
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if (14 === a.indexOf(-4 / 3) && 7 === a.indexOf(0) && 7 === a.indexOf(-0) && 10 === a.indexOf(1)) return !0;
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});
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@ -1,8 +1,25 @@
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runTestCase(function() {
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var a = Array(!1, void 0, null, "0", {
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toString: function() {
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return 0;
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}
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}, -1.3333333333333, "str", -0, !0, 0, 1, 1, 0, !1, -4 / 3, -4 / 3);
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var a = [
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!1,
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void 0,
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null,
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"0",
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{
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toString: function() {
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return 0;
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}
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},
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-1.3333333333333,
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"str",
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-0,
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!0,
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0,
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1,
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1,
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0,
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!1,
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-4 / 3,
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-4 / 3
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];
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if (14 === a.indexOf(-4 / 3) && 7 === a.indexOf(0) && 7 === a.indexOf(-0) && 10 === a.indexOf(1)) return !0;
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});
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@ -1,4 +1,4 @@
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var r = {
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s: new Object()
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s: {}
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};
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r.s && r.s.toFixed();
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@ -1,4 +1,4 @@
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var r = {
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s: new Object()
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s: {}
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};
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r.s && r.s.toFixed();
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@ -79,10 +79,11 @@ add_bitflags!(
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/// If the literal is empty, do not add spaces between braces.
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NoSpaceIfEmpty: 1 << 18,
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SingleElement: 1 << 19,
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ForceTrailingComma: 1 << 20,
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},
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// Optimization.
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Values {
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CanSkipTrailingComma: 1 << 20
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CanSkipTrailingComma: 1 << 21
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},
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/// Precomputed Formats
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Values {
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@ -1835,11 +1835,12 @@ where
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srcmap!(node, true);
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punct!("[");
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self.emit_list(
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node.span(),
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Some(&node.elems),
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ListFormat::ArrayLiteralExpressionElements,
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)?;
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let mut format = ListFormat::ArrayLiteralExpressionElements;
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if let Some(None) = node.elems.last() {
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format |= ListFormat::ForceTrailingComma;
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}
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self.emit_list(node.span(), Some(&node.elems), format)?;
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punct!("]");
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srcmap!(node, false);
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@ -2224,25 +2225,26 @@ where
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}
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// Write a trailing comma, if requested.
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let has_trailing_comma = format.contains(ListFormat::AllowTrailingComma) && {
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if parent_node.is_dummy() {
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false
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} else {
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match self.cm.span_to_snippet(parent_node) {
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Ok(snippet) => {
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if snippet.len() < 3 {
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false
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} else {
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let last_char = snippet.chars().last().unwrap();
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snippet[..snippet.len() - last_char.len_utf8()]
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.trim()
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.ends_with(',')
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let has_trailing_comma = format.contains(ListFormat::ForceTrailingComma)
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|| format.contains(ListFormat::AllowTrailingComma) && {
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if parent_node.is_dummy() {
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false
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} else {
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match self.cm.span_to_snippet(parent_node) {
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Ok(snippet) => {
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if snippet.len() < 3 {
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false
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} else {
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let last_char = snippet.chars().last().unwrap();
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snippet[..snippet.len() - last_char.len_utf8()]
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.trim()
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.ends_with(',')
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}
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}
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_ => false,
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}
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_ => false,
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}
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}
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};
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};
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if has_trailing_comma
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&& format.contains(ListFormat::CommaDelimited)
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@ -1101,104 +1101,6 @@ where
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Some(e.take())
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}
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/// `new RegExp("([Sap]+)", "ig")` => `/([Sap]+)/gi`
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fn compress_regexp(&mut self, e: &mut Expr) {
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let (span, args) = match e {
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Expr::New(NewExpr {
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span,
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callee,
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args: Some(args),
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..
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})
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| Expr::Call(CallExpr {
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span,
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callee: Callee::Expr(callee),
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args,
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..
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}) => match &**callee {
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Expr::Ident(Ident {
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sym: js_word!("RegExp"),
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..
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}) => (*span, args),
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_ => return,
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},
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_ => return,
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};
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if args.is_empty() || args.len() > 2 {
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return;
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}
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// We aborts the method if arguments are not literals.
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if args.iter().any(|v| {
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v.spread.is_some()
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|| match &*v.expr {
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Expr::Lit(Lit::Str(s)) => {
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if s.value.contains(|c: char| {
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// whitelist
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!c.is_ascii_alphanumeric()
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&& !matches!(c, '%' | '[' | ']' | '(' | ')' | '{' | '}' | '-' | '+')
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}) {
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return true;
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}
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if s.value.contains("\\\0") || s.value.contains('/') {
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return true;
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}
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false
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}
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_ => true,
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}
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}) {
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return;
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}
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//
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let pattern = args[0].expr.take();
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let pattern = match *pattern {
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Expr::Lit(Lit::Str(s)) => s.value,
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_ => {
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unreachable!()
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}
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};
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if pattern.is_empty() {
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// For some expressions `RegExp()` and `RegExp("")`
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// Theoretically we can use `/(?:)/` to achieve shorter code
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// But some browsers released in 2015 don't support them yet.
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args[0].expr = pattern.into();
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return;
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}
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let flags = args
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.get_mut(1)
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.map(|v| v.expr.take())
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.map(|v| match *v {
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Expr::Lit(Lit::Str(s)) => {
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assert!(s.value.is_ascii());
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let s = s.value.to_string();
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let mut bytes = s.into_bytes();
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bytes.sort_unstable();
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String::from_utf8(bytes).unwrap().into()
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}
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_ => {
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unreachable!()
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}
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})
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.unwrap_or(js_word!(""));
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report_change!("Converting call to RegExp into a regexp literal");
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self.changed = true;
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*e = Expr::Lit(Lit::Regex(Regex {
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span,
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exp: pattern,
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flags,
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}))
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}
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fn merge_var_decls(&mut self, stmts: &mut Vec<Stmt>) {
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if !self.options.join_vars && !self.options.hoist_vars {
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return;
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@ -1739,8 +1641,6 @@ where
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self.drop_unused_assignments(e);
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self.compress_regexp(e);
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self.compress_lits(e);
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self.compress_typeofs(e);
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@ -230,12 +230,172 @@ impl Pure<'_> {
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}
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}
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/// `new RegExp("([Sap]+)", "ig")` => `/([Sap]+)/gi`
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fn optimize_regex(&mut self, args: &mut Vec<ExprOrSpread>, span: &mut Span) -> Option<Expr> {
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if args.is_empty() || args.len() > 2 {
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return None;
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}
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// We aborts the method if arguments are not literals.
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if args.iter().any(|v| {
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v.spread.is_some()
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|| match &*v.expr {
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Expr::Lit(Lit::Str(s)) => {
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if s.value.contains(|c: char| {
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// whitelist
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!c.is_ascii_alphanumeric()
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&& !matches!(c, '%' | '[' | ']' | '(' | ')' | '{' | '}' | '-' | '+')
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}) {
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return true;
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}
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if s.value.contains("\\\0") || s.value.contains('/') {
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return true;
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}
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false
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}
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_ => true,
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}
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}) {
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return None;
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}
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let pattern = args[0].expr.take();
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let pattern = match *pattern {
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Expr::Lit(Lit::Str(s)) => s.value,
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_ => {
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unreachable!()
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}
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};
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if pattern.is_empty() {
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// For some expressions `RegExp()` and `RegExp("")`
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// Theoretically we can use `/(?:)/` to achieve shorter code
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// But some browsers released in 2015 don't support them yet.
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args[0].expr = pattern.into();
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return None;
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}
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let flags = args
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.get_mut(1)
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.map(|v| v.expr.take())
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.map(|v| match *v {
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Expr::Lit(Lit::Str(s)) => {
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assert!(s.value.is_ascii());
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let s = s.value.to_string();
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let mut bytes = s.into_bytes();
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bytes.sort_unstable();
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String::from_utf8(bytes).unwrap().into()
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}
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_ => {
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unreachable!()
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}
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})
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.unwrap_or(js_word!(""));
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Some(Expr::Lit(Lit::Regex(Regex {
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span: *span,
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exp: pattern,
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flags,
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})))
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}
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/// Array() -> []
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fn optimize_array(&mut self, args: &mut Vec<ExprOrSpread>, span: &mut Span) -> Option<Expr> {
|
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if args.len() == 1 {
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if let ExprOrSpread { spread: None, expr } = &args[0] {
|
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match &**expr {
|
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Expr::Lit(Lit::Num(num)) => {
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if num.value <= 5_f64 && num.value >= 0_f64 {
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Some(Expr::Array(ArrayLit {
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span: *span,
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elems: vec![None; num.value as usize],
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}))
|
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} else {
|
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None
|
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}
|
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}
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Expr::Lit(_) => Some(Expr::Array(ArrayLit {
|
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span: *span,
|
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elems: vec![args.take().into_iter().next()],
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})),
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_ => None,
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}
|
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} else {
|
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None
|
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}
|
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} else {
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Some(Expr::Array(ArrayLit {
|
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span: *span,
|
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elems: args.take().into_iter().map(Some).collect(),
|
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}))
|
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}
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}
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|
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/// Object -> {}
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fn optimize_object(&mut self, args: &mut Vec<ExprOrSpread>, span: &mut Span) -> Option<Expr> {
|
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if args.is_empty() {
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Some(Expr::Object(ObjectLit {
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span: *span,
|
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props: Vec::new(),
|
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}))
|
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} else {
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None
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}
|
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}
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|
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/// new Array(...) -> Array(...)
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pub(super) fn remove_new(&mut self, e: &mut Expr) {
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pub(super) fn optimize_builtin_object(&mut self, e: &mut Expr) {
|
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if !self.options.pristine_globals {
|
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return;
|
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}
|
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|
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match e {
|
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Expr::New(NewExpr {
|
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span,
|
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callee,
|
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args: Some(args),
|
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..
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})
|
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| Expr::Call(CallExpr {
|
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span,
|
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callee: Callee::Expr(callee),
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args,
|
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..
|
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}) if callee
|
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.is_one_of_global_ref_to(&self.expr_ctx, &["Array", "Object", "RegExp"]) =>
|
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{
|
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let new_expr = match &**callee {
|
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Expr::Ident(Ident {
|
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sym: js_word!("RegExp"),
|
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..
|
||||
}) => self.optimize_regex(args, span),
|
||||
Expr::Ident(Ident {
|
||||
sym: js_word!("Array"),
|
||||
..
|
||||
}) => self.optimize_array(args, span),
|
||||
Expr::Ident(Ident {
|
||||
sym: js_word!("Object"),
|
||||
..
|
||||
}) => self.optimize_object(args, span),
|
||||
_ => unreachable!(),
|
||||
};
|
||||
|
||||
if let Some(new_expr) = new_expr {
|
||||
report_change!(
|
||||
"Converting Regexp/Array/Object call to native constructor into literal"
|
||||
);
|
||||
self.changed = true;
|
||||
*e = new_expr;
|
||||
return;
|
||||
}
|
||||
}
|
||||
_ => {}
|
||||
};
|
||||
|
||||
match e {
|
||||
Expr::New(NewExpr {
|
||||
span,
|
||||
@ -245,6 +405,7 @@ impl Pure<'_> {
|
||||
}) if callee.is_one_of_global_ref_to(
|
||||
&self.expr_ctx,
|
||||
&[
|
||||
"Object",
|
||||
// https://262.ecma-international.org/12.0/#sec-array-constructor
|
||||
"Array",
|
||||
// https://262.ecma-international.org/12.0/#sec-function-constructor
|
||||
|
||||
@ -371,7 +371,7 @@ impl VisitMut for Pure<'_> {
|
||||
|
||||
self.compress_useless_cond_expr(e);
|
||||
|
||||
self.remove_new(e);
|
||||
self.optimize_builtin_object(e);
|
||||
}
|
||||
|
||||
fn visit_mut_expr_stmt(&mut self, s: &mut ExprStmt) {
|
||||
|
||||
@ -5177,7 +5177,9 @@
|
||||
75202: function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {
|
||||
"use strict";
|
||||
var $ = __webpack_require__(35437), $findIndex = __webpack_require__(48499).findIndex, addToUnscopables = __webpack_require__(23140), FIND_INDEX = "findIndex", SKIPS_HOLES = !0;
|
||||
FIND_INDEX in [] && Array(1)[FIND_INDEX](function() {
|
||||
FIND_INDEX in [] && [
|
||||
,
|
||||
][FIND_INDEX](function() {
|
||||
SKIPS_HOLES = !1;
|
||||
}), $({
|
||||
target: "Array",
|
||||
@ -5192,7 +5194,9 @@
|
||||
37742: function(__unused_webpack_module, __unused_webpack_exports, __webpack_require__) {
|
||||
"use strict";
|
||||
var $ = __webpack_require__(35437), $find = __webpack_require__(48499).find, addToUnscopables = __webpack_require__(23140), FIND = "find", SKIPS_HOLES = !0;
|
||||
FIND in [] && Array(1)[FIND](function() {
|
||||
FIND in [] && [
|
||||
,
|
||||
][FIND](function() {
|
||||
SKIPS_HOLES = !1;
|
||||
}), $({
|
||||
target: "Array",
|
||||
@ -8390,7 +8394,12 @@
|
||||
79085: function(module, __unused_webpack_exports, __webpack_require__) {
|
||||
"use strict";
|
||||
__webpack_require__(17384);
|
||||
var $ = __webpack_require__(35437), getBuiltIn = __webpack_require__(44990), USE_NATIVE_URL = __webpack_require__(62902), redefine = __webpack_require__(78109), redefineAll = __webpack_require__(59855), setToStringTag = __webpack_require__(77875), createIteratorConstructor = __webpack_require__(10536), InternalStateModule = __webpack_require__(44670), anInstance = __webpack_require__(51819), isCallable = __webpack_require__(67106), hasOwn = __webpack_require__(1521), bind = __webpack_require__(59561), classof = __webpack_require__(85983), anObject = __webpack_require__(83941), isObject = __webpack_require__(39817), $toString = __webpack_require__(72729), create = __webpack_require__(18255), createPropertyDescriptor = __webpack_require__(93608), getIterator = __webpack_require__(11661), getIteratorMethod = __webpack_require__(99422), wellKnownSymbol = __webpack_require__(81019), nativeFetch = getBuiltIn("fetch"), NativeRequest = getBuiltIn("Request"), RequestPrototype = NativeRequest && NativeRequest.prototype, Headers = getBuiltIn("Headers"), ITERATOR = wellKnownSymbol("iterator"), URL_SEARCH_PARAMS = "URLSearchParams", URL_SEARCH_PARAMS_ITERATOR = URL_SEARCH_PARAMS + "Iterator", setInternalState = InternalStateModule.set, getInternalParamsState = InternalStateModule.getterFor(URL_SEARCH_PARAMS), getInternalIteratorState = InternalStateModule.getterFor(URL_SEARCH_PARAMS_ITERATOR), plus = /\+/g, sequences = Array(4), percentDecode = function(sequence) {
|
||||
var $ = __webpack_require__(35437), getBuiltIn = __webpack_require__(44990), USE_NATIVE_URL = __webpack_require__(62902), redefine = __webpack_require__(78109), redefineAll = __webpack_require__(59855), setToStringTag = __webpack_require__(77875), createIteratorConstructor = __webpack_require__(10536), InternalStateModule = __webpack_require__(44670), anInstance = __webpack_require__(51819), isCallable = __webpack_require__(67106), hasOwn = __webpack_require__(1521), bind = __webpack_require__(59561), classof = __webpack_require__(85983), anObject = __webpack_require__(83941), isObject = __webpack_require__(39817), $toString = __webpack_require__(72729), create = __webpack_require__(18255), createPropertyDescriptor = __webpack_require__(93608), getIterator = __webpack_require__(11661), getIteratorMethod = __webpack_require__(99422), wellKnownSymbol = __webpack_require__(81019), nativeFetch = getBuiltIn("fetch"), NativeRequest = getBuiltIn("Request"), RequestPrototype = NativeRequest && NativeRequest.prototype, Headers = getBuiltIn("Headers"), ITERATOR = wellKnownSymbol("iterator"), URL_SEARCH_PARAMS = "URLSearchParams", URL_SEARCH_PARAMS_ITERATOR = URL_SEARCH_PARAMS + "Iterator", setInternalState = InternalStateModule.set, getInternalParamsState = InternalStateModule.getterFor(URL_SEARCH_PARAMS), getInternalIteratorState = InternalStateModule.getterFor(URL_SEARCH_PARAMS_ITERATOR), plus = /\+/g, sequences = [
|
||||
,
|
||||
,
|
||||
,
|
||||
,
|
||||
], percentDecode = function(sequence) {
|
||||
try {
|
||||
return decodeURIComponent(sequence);
|
||||
} catch (error) {
|
||||
|
||||
@ -4778,7 +4778,7 @@
|
||||
{
|
||||
key: "decode",
|
||||
value: function(row, start) {
|
||||
var result = Array(), decodedCodes = Array(), resultInfo = {}, startInfo = this._findStart();
|
||||
var result = [], decodedCodes = [], resultInfo = {}, startInfo = this._findStart();
|
||||
if (!startInfo) return null;
|
||||
var code = {
|
||||
start: startInfo.start,
|
||||
@ -5854,7 +5854,7 @@
|
||||
{
|
||||
key: "decode",
|
||||
value: function(row, start) {
|
||||
var result = Array(), decodedCodes = Array(), startInfo = this._findStart();
|
||||
var result = [], decodedCodes = [], startInfo = this._findStart();
|
||||
if (!startInfo) return null;
|
||||
decodedCodes.push(startInfo);
|
||||
var endInfo = this._findEnd();
|
||||
|
||||
@ -19888,7 +19888,7 @@
|
||||
for(; a <= 279;)d[2 * a + 1] = 7, a++, l[7]++;
|
||||
for(; a <= 287;)d[2 * a + 1] = 8, a++, l[8]++;
|
||||
for(D(d, 287, l), a = 0; a < 30; a++)f[2 * a + 1] = 5, f[2 * a] = C(a, 5);
|
||||
n = new w(d, r, 257, 286, 15), o = new w(f, s, 0, 30, 15), p = new w(Array(0), u, 0, 19, 7);
|
||||
n = new w(d, r, 257, 286, 15), o = new w(f, s, 0, 30, 15), p = new w([], u, 0, 19, 7);
|
||||
}(), M = !0), a.l_desc = new x(a.dyn_ltree, n), a.d_desc = new x(a.dyn_dtree, o), a.bl_desc = new x(a.bl_tree, p), a.bi_buf = 0, a.bi_valid = 0, E(a);
|
||||
}, b._tr_stored_block = l, b._tr_flush_block = function(a, j, h, g) {
|
||||
var b, c, k = 0;
|
||||
|
||||
@ -1,5 +1,7 @@
|
||||
console.log(Array());
|
||||
console.log(Array(0));
|
||||
console.log(Array(1));
|
||||
console.log([]);
|
||||
console.log([]);
|
||||
console.log([
|
||||
,
|
||||
]);
|
||||
console.log(Array(11));
|
||||
console.log(Array(12));
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
function foo(x) {
|
||||
return x;
|
||||
}
|
||||
var o = new Object();
|
||||
var o = {};
|
||||
o.p = 1;
|
||||
|
||||
@ -1,4 +1,12 @@
|
||||
const { a: a, b: c, d: d = new Object(1) } = { b: 7 };
|
||||
let { e: e, f: g, h: h = new Object(2) } = { e: 8 };
|
||||
var { w: w, x: y, z: z = new Object(3) } = { w: 4, x: 5, y: 6 };
|
||||
const { a: a , b: c , d: d = Object(1) } = {
|
||||
b: 7
|
||||
};
|
||||
let { e: e , f: g , h: h = Object(2) } = {
|
||||
e: 8
|
||||
};
|
||||
var { w: w , x: y , z: z = Object(3) } = {
|
||||
w: 4,
|
||||
x: 5,
|
||||
y: 6
|
||||
};
|
||||
console.log(c, e, z + 0);
|
||||
|
||||
@ -1,4 +1,12 @@
|
||||
const { a: a, b: c, d: d = new Object(1) } = { b: 7 };
|
||||
let { e: e, f: g, h: h = new Object(2) } = { e: 8 };
|
||||
var { w: w, x: y, z: z = new Object(3) } = { w: 4, x: 5, y: 6 };
|
||||
const { a: a , b: c , d: d = Object(1) } = {
|
||||
b: 7
|
||||
};
|
||||
let { e: e , f: g , h: h = Object(2) } = {
|
||||
e: 8
|
||||
};
|
||||
var { w: w , x: y , z: z = Object(3) } = {
|
||||
w: 4,
|
||||
x: 5,
|
||||
y: 6
|
||||
};
|
||||
console.log(c, e, z + 0);
|
||||
|
||||
@ -1,4 +1,12 @@
|
||||
const { a: a, b: c, d: d = new Object(1) } = { b: 7 };
|
||||
let { e: e, f: g, h: h = new Object(2) } = { e: 8 };
|
||||
var { w: w, x: y, z: z = new Object(3) } = { w: 4, x: 5, y: 6 };
|
||||
const { a: a , b: c , d: d = Object(1) } = {
|
||||
b: 7
|
||||
};
|
||||
let { e: e , f: g , h: h = Object(2) } = {
|
||||
e: 8
|
||||
};
|
||||
var { w: w , x: y , z: z = Object(3) } = {
|
||||
w: 4,
|
||||
x: 5,
|
||||
y: 6
|
||||
};
|
||||
console.log(c, e, z + 0);
|
||||
|
||||
@ -1,4 +1,12 @@
|
||||
const { a: a, b: c, d: d = new Object(1) } = { b: 7 };
|
||||
let { e: e, h: h = new Object(2) } = { e: 8 };
|
||||
var { w: w, z: z = new Object(3) } = { w: 4, x: 5, y: 6 };
|
||||
const { a: a , b: c , d: d = Object(1) } = {
|
||||
b: 7
|
||||
};
|
||||
let { e: e , h: h = Object(2) } = {
|
||||
e: 8
|
||||
};
|
||||
var { w: w , z: z = Object(3) } = {
|
||||
w: 4,
|
||||
x: 5,
|
||||
y: 6
|
||||
};
|
||||
console.log(c, e, z + 0);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user