[Swift] Codegen does not detect file data types

[AnthonyOliveri]

Description

For Swift codegen, the CodegenOperation's defaultResponse is never set to type file, even when specified in the swagger doc, like so:

responses:
    200:
        description: success
        schema:
            type: file

This means that anything nested in the mustache tags {{#operation}}{{#isResponseFile}} never get evaluated, even for file type responses.

Swagger-codegen version

master branch

Suggest a Fix

The fix is very simple: the function public boolean isDataTypeFile(String dataType) needs to be implemented in SwiftCodegen.java and Swift3Codegen.java. Since these methods are currently not implemented, the response type incorrectly uses the same function from DefaultCodegen.java, which looks for the type string "file" instead of the Swift equivalent "NSURL" or "URL".

I can create a pull request with the fix if you like.

[wing328]

@AnthonyOliveri thanks for reporting the issue. Please submit a PR so that we can review the change.

[AnthonyOliveri]

Submitted pull request #5065.

[wing328]

Closed via #5056

Thanks for the contribution.