Linter fails on negative enum values

[iorbitearth]

Given the following proto file:

syntax = "proto2";

enum TestNegativeValue {
  NEGATIVE_CONSTANT = -1;
  ZERO_CONSTANT = 0;
  POSITIVE_CONSTANT = 1;
}

protolint fails on the negative enum constant:

$ protolint negative_enum_val.proto 
found "\"-\"(Token=0, Pos=negative_enum_val.proto:4:23)" but expected [intLit] at /go/pkg/mod/github.com/yoheimuta/go-protoparser/v4@v4.2.0/parser/enum.go:242:found "-" but expected [;]. Use -v for more details

$ echo $?
2

Using the Linux 0.26.0 release protolint_0.26.0_Linux_x86_64.tar.gz

Not an issue for protoc. For now I'm excluding certain proto files that have negative enums in the protolint config file.

[yoheimuta]

@iorbitearth Thank you for letting me know!
I created an issue which is yoheimuta/go-protoparser#57.

[yoheimuta]

@iorbitearth v0.28.2 allows negative enum values.
Please give it a try!

[iorbitearth]

That fixed it, thanks!