* feat: support std errors functions
add function `Is`, `As` and `Unwrap`, like std errors, so that we can
continue to use pkg/errors with go1.13 compatibility
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* style: delete useless comments
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* build: update makefile
update makefile to download dependencies before test anything
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* build: fix makefile
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* chore: delete useless comments
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Restore Makefile
* revert: revert some change
some change are doing by PR #206 and #212 , so I don't need to do it
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* test: add more check for As unit test
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* revert: only support Is As Unwrap for >=go1.13
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* feat(Unwrap): allow <go1.13 can use Unwrap
`Unwrap` just use type assert, it doesn't need go1.13 actually
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* test: add go1.13 errors compatibility check
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* refactor(Unwrap): don't allow <go1.13 use Unwrap
If we implement Unwrap ourselves, may create a risk of incompatibility
if Go 1.14 subtly changes its `Unwrap` implementation.
<go1.13 users doesn't have `Is` or `As`, if they want, they will use
xerrors and it also provides `Unwrap`
Signed-off-by: Sherlock Holo <sherlockya@gmail.com>
* Add support for Go 1.13 error chains
Go 1.13 adds support for error chains to the standard libary's errors
package. The new standard library functions require an Unwrap method to
be provided by an error type. This change adds a new Unwrap method
(identical to the existing Cause method) to the unexported error types.
Adrian Perez
Jay Petacat
Sherlock Holo