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implement --module (#5462)

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This commit is contained in:
Alex Lam S.L
2022-05-23 22:45:47 +01:00
committed by GitHub
parent 740f93f5a9
commit c82fc1ef71
8 changed files with 45 additions and 12 deletions
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5
lib/compress.js
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@@ -80,6 +80,7 @@ function Compressor(options, false_by_default) {
keep_infinity : false,
loops : !false_by_default,
merge_vars : !false_by_default,
module : false,
negate_iife : !false_by_default,
objects : !false_by_default,
optional_chains : !false_by_default,
@@ -97,7 +98,7 @@ function Compressor(options, false_by_default) {
switches : !false_by_default,
templates : !false_by_default,
top_retain : null,
toplevel : !!(options && options["top_retain"]),
toplevel : !!(options && (options["module"] || options["top_retain"])),
typeofs : !false_by_default,
unsafe : false,
unsafe_comps : false,
@@ -130,6 +131,7 @@ function Compressor(options, false_by_default) {
var escaped = def.escaped;
return escaped && escaped.depth != 1;
};
if (this.options["module"]) this.directives["use strict"] = true;
var pure_funcs = this.options["pure_funcs"];
if (typeof pure_funcs == "function") {
this.pure_funcs = pure_funcs;
@@ -7360,6 +7362,7 @@ Compressor.prototype.compress = function(node) {
}
});
tt.push(compressor.parent());
tt.directives = Object.create(compressor.directives);
self.transform(tt);
if (self instanceof AST_Lambda
&& self.body.length == 1