// input.js const x = 0 ; for ( { x } in [ 1 ] ) ; _____________________ Hello, Executing the input.js using JSC, it terminates normally, but TypeError is expected since there is an assignment to const. Running the input.js with JSC results in: --- $ jsc input.js async --- while other engines behave like: --- # V8 (used console.log) $ node input.js input.js:1 const x = 0 ; for ( { x } in [ 1 ] ) ; ^ TypeError: Assignment to constant variable. at Object.<anonymous> (input.js:1:23) at Module._compile (node:internal/modules/cjs/loader:1159:14) at Module._extensions..js (node:internal/modules/cjs/loader:1213:10) at Module.load (node:internal/modules/cjs/loader:1037:32) at Module._load (node:internal/modules/cjs/loader:878:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) at node:internal/main/run_main_module:23:47 Node.js v18.11.0 # GraalJS $ js input.js TypeError: Assignment to constant "x" at <js> :program(input.js:1:22) --- WebKit version: 615.1.10
<rdar://problem/102325113>
This should be a duplicate of https://bugs.webkit.org/show_bug.cgi?id=247432 and should be fixed in PR https://commits.webkit.org/256580@main. Just tested on ToT https://commits.webkit.org/256659@main. It is fixed. *** This bug has been marked as a duplicate of bug 247432 ***