When a Symbol fails validation, Superstruct is unable to create an error message for it. This results in Superstruct throwing an error message, even when using is for validation.
This can be reproduced using:
is(Symbol('foo'), string());
The expected result is false, but instead this throws the following error:
TypeError: Cannot convert a Symbol value to a string
at value (./node_modules/superstruct/src/utils.ts:38:65)
at print (./node_modules/superstruct/src/structs/types.ts:423:43)
at Struct.validator (./node_modules/superstruct/src/struct.ts:46:24)
Looks like Superstruct is trying to create a stringified version of it in this function, which is not possible for Symbols:
When a
Symbolfails validation, Superstruct is unable to create an error message for it. This results in Superstruct throwing an error message, even when usingisfor validation.This can be reproduced using:
The expected result is
false, but instead this throws the following error:Looks like Superstruct is trying to create a stringified version of it in this function, which is not possible for
Symbols:https://github.com/ianstormtaylor/superstruct/blob/fe7e79779573c6619265013919f913e7c6c2138c/src/utils.ts#L37-L39