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[parser] Support BigIntLiteral in visitMemberKey #560

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Merged
Liedtke merged 1 commit into from
Sep 16, 2026
+35 −0
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[parser] Support BigIntLiteral in visitMemberKey #560

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2 changes: 2 additions & 0 deletions Sources/Fuzzilli/Compiler/Parser/parser.js
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,8 @@ function parse(script, proto) {
body.index = member.key.value;
} else if (member.key.type === 'StringLiteral') {
body.name = member.key.value;
} else if (member.key.type === 'BigIntLiteral') {
body.name = member.key.value;
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Liedtke marked this conversation as resolved.
} else if (member.key.type === 'PrivateName') {
assert(member.key.id.type === 'Identifier', "Expected private name ID to be an Identifier");
body.privateName = member.key.id.name;
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33 changes: 33 additions & 0 deletions Tests/FuzzilliTests/CompilerTests/bigint_literal_prop_keys.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
if (typeof output === "undefined") output = console.log;

const obj1 = { 42n: 42 };
output(obj1[42n]);
output(obj1["42"]);
output(Object.keys(obj1).length);

const obj2 = { 1: 1, 1n: 2n, "1": "3" };
output(Object.keys(obj2).length);
output(obj2[1n]);

const obj3 = {
get 3n() {
return 3;
},
set 3n(v) {},
};
obj3[3n] = 42;
output(obj3[3n]);

class C {
static 2n() {
return 2;
}
1n() {
return 1;
}
}
output(C[2n]());
output(new C()[1n]());

let { 1n: x } = { 1n: "big" };
output(x);