SyntaxError thrown on valid JS

[p-bakker]

This snippet of code throws a SyntaxError: invalid lexical variable name:

        with (new Proxy({globalThis: {Infinity, NaN, undefined}}, {})) {
          const {Infinity,NaN,undefined} = this.globalThis;
        }

This sort of structure is used by SES in the Compartment polyfill

Besides this snippet being valid js and thus shouldn't be throwing a SyntaxError, if there would be a real syntax error, shouldn't the error include the invalid variable name?

[chqrlie]

This snippet can be simplified as

{ const { undefined } = {} }

it throws:

SyntaxError: invalid lexical variable name
    at <evalScript>:1:8

Same problem without the destructuring:

{ const undefined = void 0; }

[chqrlie]

Besides this snippet being valid js and thus shouldn't be throwing a SyntaxError, if there would be a real syntax error, shouldn't the error include the invalid variable name

I agree on both counts. Adding the identifier should be easy in this case because this is a parse error.