console.log(class Klass {}) // node "[class Klass]" perry "49" (a bare integer)
console.log(new Array(3)) // node "[ <3 empty items> ]" perry "[ NaN, NaN, NaN ]"
console.log(Promise.resolve(1)) // node "Promise { 1 }" perry "Promise { <pending> }"Three distinct inspect defects. The first is the worst: a class value prints as an integer (its class id leaking through), which is unrecognisable rather than merely differently formatted. The second turns holes into NaN, which is a wrong value, not a formatting choice. The third reports a settled promise as pending.
Debug output is how people diagnose everything else, so these make every other investigation harder.
Found by a differential stress-test of claude-code under perry.
Three distinct inspect defects. The first is the worst: a class value prints as an integer (its class id leaking through), which is unrecognisable rather than merely differently formatted. The second turns holes into
NaN, which is a wrong value, not a formatting choice. The third reports a settled promise as pending.Debug output is how people diagnose everything else, so these make every other investigation harder.
Found by a differential stress-test of claude-code under perry.