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fix corner cases with class (#4822)

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fixes #4821
This commit is contained in:
Alex Lam S.L
2021-03-24 20:36:50 +00:00
committed by GitHub
parent 40ef074cb3
commit 03c5ecb2e3
2 changed files with 61 additions and 5 deletions
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18
lib/compress.js
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@@ -998,7 +998,7 @@ merge(Compressor.prototype, {
if (prop.key instanceof AST_Node) prop.key.walk(tw);
return prop.value;
}).forEach(function(prop) {
if (prop.static) {
if (prop.static && (prop.value instanceof AST_Lambda || !prop.value.contains_this())) {
prop.value.walk(tw);
} else {
push(tw);
@@ -7380,10 +7380,18 @@ merge(Compressor.prototype, {
});
def(AST_Class, function(compressor, first_in_statement) {
var exprs = [], values = [];
this.properties.forEach(function(prop) {
var props = this.properties;
for (var i = 0; i < props.length; i++) {
var prop = props[i];
if (prop.key instanceof AST_Node) exprs.push(prop.key);
if (prop instanceof AST_ClassField && prop.static && prop.value) values.push(prop.value);
});
if (prop instanceof AST_ClassField
&& prop.static
&& prop.value
&& !(prop.value instanceof AST_Lambda)) {
if (prop.value.contains_this()) return this;
values.push(prop.value);
}
}
var base = this.extends;
if (base) {
if (base instanceof AST_SymbolRef) base = base.fixed_value();
@@ -11392,7 +11400,7 @@ merge(Compressor.prototype, {
AST_Arrow.DEFMETHOD("contains_this", return_false);
AST_AsyncArrow.DEFMETHOD("contains_this", return_false);
AST_Scope.DEFMETHOD("contains_this", function() {
AST_Node.DEFMETHOD("contains_this", function() {
var result;
var self = this;
self.walk(new TreeWalker(function(node) {