surma
d44f1d9677
Checkpoint before integration and package validation. Assisted-by: SurmAgent:unknown [read] [edit] [bash]
20 lines
548 B
JavaScript
20 lines
548 B
JavaScript
import { assert } from "./assert.js";
|
|
|
|
/* A ReferenceError for an undefined global should point at the column of the
|
|
reference, not column 1 or the enclosing function. The location is exposed
|
|
through the error's stack trace. */
|
|
function refColumn(src) {
|
|
try {
|
|
(0, eval)(src);
|
|
} catch (e) {
|
|
const m = /<input>:(\d+):(\d+)/.exec(e.stack);
|
|
if (m)
|
|
return +m[2];
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
assert(refColumn("x"), 1);
|
|
assert(refColumn(" missingGlobal"), 4);
|
|
assert(refColumn("let a=1; alsoMissing"), 10);
|