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try

The try keyword begins a protected block of code that may raise an error. It is paired with one or more catch clauses to handle errors thrown within the block.

Syntax & Example​

try {
    let data = FS.open(path, "r").readAll();
} catch (e: Error) {
    print(f"failed: {e}");
}

Use Cases​

  • Protecting code that may raise errors (I/O, parsing, FFI).
  • Combining with catch to recover from specific error types.
  • Pairing with defer to guarantee cleanup whether or not an error occurs.

See also: catch, throw, Error Handling.