enetx / g / 22254013504

89%

Build Type

push

github

Committed by enetx

Commit Message

feat(print): add {wrap} modifier to Errorf for error chain support

Errorf now supports a {wrap} modifier that simultaneously formats an
error value into the message and wraps it in the returned error,
enabling errors.Is / errors.As to traverse the chain.

Supported forms:
  {.wrap}       — auto-index
  {1.wrap}      — positional
  {name.wrap}   — named
  multiple {wrap} references wrap multiple errors

Add wrappedError type (Unwrap() []error) to errors.go.
Add TestErrorf covering all forms and edge cases.
Add examples/print/ with basic, format, and errorf examples.

Run Details

40 of 40 new or added lines in 2 files covered. (100.0%)

20 existing lines in 1 file now uncovered.

5420 of 6078 relevant lines covered (89.17%)

13945.88 hits per line