[swift5] Remove optional from body

[funzin]

Remove optional from body
When using getNonDecodableBuilder, Response body type is Void only so we don't need to have body as optional.

• Remove unused switch case code
• Change from body: T? to body: T

we won't have to do any unnecessary unwrapping when using api response.

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[funzin]

@4brunu
Please review it when you have time.

[funzin]

When response type is void, getNonDecodableBuilder is used

• openapi-generator/modules/openapi-generator/src/main/resources/swift5/api.mustache

  Line 454 in 126e406

  let localVariableRequestBuilder: RequestBuilder<{{{returnType}}}{{^returnType}}Void{{/returnType}}>.Type = {{projectName}}API.requestBuilderFactory.{{#returnType}}getBuilder(){{/returnType}}{{^returnType}}getNonDecodableBuilder(){{/returnType}}

• openapi-generator/modules/openapi-generator/src/main/resources/swift5/api.mustache

  Line 163 in 126e406

  {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}open{{/nonPublicApi}} class func {{operationId}}({{#allParams}}{{paramName}}: {{#isEnum}}{{#isContainer}}{{{dataType}}}{{/isContainer}}{{^isContainer}}{{{datatypeWithEnum}}}_{{operationId}}{{/isContainer}}{{/isEnum}}{{^isEnum}}{{{dataType}}}{{/isEnum}}{{^required}}? = nil{{/required}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}apiResponseQueue: DispatchQueue = {{projectName}}API.apiResponseQueue) -> AnyPublisher<{{{returnType}}}{{^returnType}}Void{{/returnType}}, Error> {

[4brunu]

Hi @funzin, thanks for creating this PR.
CI is failing because there are places where the optional body was being unwrapped, but now since it's not optional anymore, it can't be unwrapped.
Could you please check for the other places that need to be updated?
For example the file api.mustache and i'm not sure if there are other places.
Thanks

[funzin]

OK, I will check these places:+1:

[4brunu]

@funzin please search and replace all occurrences of response.body! with response.body in this class, to fix all the cases. Thanks

[funzin]

I have already checked response.body! in swift5
dbdc585

Maybe, CI will be succeed.

[funzin]

@4brunu
CI ✅

[4brunu]

Looks good to me 👍
Thanks for this PR