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support destructured shorthand for default parameters (#5059)

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closes #4990
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Alex Lam S.L 2021-07-07 15:45:24 +01:00 committed by GitHub
parent 0c48b84540
commit 2340feff87
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 16 additions and 4 deletions
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14
lib/output.js
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@ -1629,7 +1629,19 @@ function OutputStream(options) {
var self = this; var self = this;
var key = print_property_key(self, output); var key = print_property_key(self, output);
var value = self.value; var value = self.value;
if (key && value instanceof AST_SymbolDeclaration && key == get_symbol_name(value)) return; if (key) {
if (value instanceof AST_DefaultValue) {
if (value.name instanceof AST_Symbol && key == get_symbol_name(value.name)) {
output.space();
output.print("=");
output.space();
value.value.print(output);
return;
}
} else if (value instanceof AST_Symbol) {
if (key == get_symbol_name(value)) return;
}
}
output.colon(); output.colon();
value.print(output); value.print(output);
}); });

6
test/compress/default-values.js
View File

@ -70,7 +70,7 @@ object_shorthand_assign: {
({ a = "PASS" } = 42); ({ a = "PASS" } = 42);
console.log(a); console.log(a);
} }
expect_exact: '({a:a="PASS"}=42);console.log(a);' expect_exact: '({a="PASS"}=42);console.log(a);'
expect_stdout: "PASS" expect_stdout: "PASS"
node_version: ">=6" node_version: ">=6"
} }
@ -80,7 +80,7 @@ object_shorthand_declaration: {
var { a = "PASS" } = 42; var { a = "PASS" } = 42;
console.log(a); console.log(a);
} }
expect_exact: 'var{a:a="PASS"}=42;console.log(a);' expect_exact: 'var{a="PASS"}=42;console.log(a);'
expect_stdout: "PASS" expect_stdout: "PASS"
node_version: ">=6" node_version: ">=6"
} }
@ -91,7 +91,7 @@ object_shorthand_function: {
console.log(a); console.log(a);
})(42); })(42);
} }
expect_exact: '(function({a:a="PASS"}){console.log(a)})(42);' expect_exact: '(function({a="PASS"}){console.log(a)})(42);'
expect_stdout: "PASS" expect_stdout: "PASS"
node_version: ">=6" node_version: ">=6"
} }