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fix(codemode): align mutable JavaScript semantics (#35598)

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Kit Langton 2026-07-06 15:55:32 -04:00 • committed by GitHub
commit 0e1c0414c2
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4 changed files with 138 additions and 47 deletions
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10
packages/codemode/src/stdlib/object.ts
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@ -36,10 +36,14 @@ export const invokeObjectMethod = (name: string, args: Array<unknown>, node: Ast
case "hasOwn":
return Object.hasOwn(requireObject(), String(args[1]))
case "assign": {
const out: Record<string, unknown> = Object.create(null)
for (const source of args) {
const target = args[0]
if (target === null || typeof target !== "object" || Array.isArray(target) || isSandboxValue(target)) {
throw new InterpreterRuntimeError("Object.assign expects a data object target.", node)
}
const out = target as Record<string, unknown>
for (const source of args.slice(1)) {
if (source === null || source === undefined) continue
const value = boundedData(source, "Object.assign input")
const value = source
if (isSandboxValue(value)) continue
if (value === null || typeof value !== "object" || Array.isArray(value)) {
throw new InterpreterRuntimeError("Object.assign expects data objects.", node)