[SWIFT4] Bug when generating a client from a declaration containing reserved words

[nascob]

Description

I am trying to generate a Swift 4 client from a declaration that has a response attribute named throw. I believe since that is a reserved word in Swift and it has not been escaped - the generated client does not compile.

Swagger-codegen version

I have tried with the current stable version for mac: 2.2.3, 2.3.0 (SNAPSHOT) and 3.0.0 (SNAPSHOT)

Swagger declaration file content or url

OpenDotaApi Swagger file https://api.opendota.com/api

Command line used for generation

swagger-codegen generate -l swift4 -i https://api.opendota.com/api

Steps to reproduce

1. Run the generation command above.
2. Inspect SwaggerClient/Swaggers/Models/InlineResponse200.swift (line 94)

Related issues/PRs

I did not find any.

Suggest a fix/enhancement

It seems like there's no escape/prefix for reserved words in Swift generation. A simple fix would be prefixing it by an underscore symbol.

[wing328]

@atanasbozhkov We can add throw to the reserved word list: https://github.com/swagger-api/swagger-codegen/blob/master/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/Swift4Codegen.java#L137-L155

Would you have time to contribute the fix?

[nascob]

I just raised a PR #6952 - would you please review it and let me know if it needs more work?

[wing328]

Fixed via #6952

Thanks for your contribution.