cangjie-pattern-match

Cangjie pattern matching uses the match expression to destructure enums by comparing values against specific enum variants, ensuring exhaustive checking for robust conditional logic across all possible data states.

Cangjie's if-let construct handles single conditional binding cases, whereas match expressions enforce exhaustive pattern checking across multiple enum variants or tuple structures to guarantee all branches are addressed.

Cangjie pattern guards use the where clause to apply additional boolean conditions within match expressions, allowing you to filter matched values and execute arms only when specific criteria are met.

Cangjie supports nested patterns for tuple destructuring, allowing you to extract multiple values simultaneously within a single match expression to parse complex data structures efficiently.

Cangjie match expressions require exhaustive matching and fail with refutability errors when your patterns do not cover all possible enum variants or data structures, requiring a wildcard or complete branch coverage.

Cangjie's while-let construct is used for conditional looping, repeatedly matching a pattern and executing its block until the pattern refutes the evaluated value, which is ideal for processing iterative data streams.