The current API for const-decoding only returns the resulting array, which makes it impossible for a user to check that the input had the correct length. This is an important use-case for things like wallet addresses, where people often make typos by forgetting to paste a character.
Proposed changes
Since there's no onto() API available in const contexts, this PR introduces a breaking change by having into_array_const also return the length decoded. I couldn't come up with a way to eliminate the breaking change without also introducing a lot of copied code, since we can't call Result::map in a const context.
I apologize for coming back with another change so soon, but I only discovered the issue when playing around with the API more recently. Let me know what you think!
Problem
The current API for const-decoding only returns the resulting array, which makes it impossible for a user to check that the input had the correct length. This is an important use-case for things like wallet addresses, where people often make typos by forgetting to paste a character.
Proposed changes
Since there's no
onto()API available in const contexts, this PR introduces a breaking change by havinginto_array_constalso return the length decoded. I couldn't come up with a way to eliminate the breaking change without also introducing a lot of copied code, since we can't callResult::mapin a const context.I apologize for coming back with another change so soon, but I only discovered the issue when playing around with the API more recently. Let me know what you think!