add functio scoped struct parse, tests

[mstrYoda]

Describe the PR
I added the functionality of parsing function scoped structs.

With this development we will be able to define our request response types in the same function scope as our handlers:

package main

// @Param request body main.Fun.request true "query params" 
// @Success 200 {object} main.Fun.response
// @Router /test [post]
func Fun()  {
	type request struct {
		Name string
	}
	
	type response struct {
		Name string
		Child string
	}
}

Relation issue
#1274

Additional context
All tests passed in parser_tests.go. Changes look backward compatible.

[mstrYoda]

@ubogdan Hi, can you review the changes when you are available? 🙏

[codecov]

Codecov Report

Merging #1283 (47a1848) into master (2f148dd) will increase coverage by 0.09%.
The diff coverage is 95.23%.

@@            Coverage Diff             @@
##           master    #1283      +/-   ##
==========================================
+ Coverage   94.95%   95.04%   +0.09%     
==========================================
  Files          14       14              
  Lines        2717     2787      +70     
==========================================
+ Hits         2580     2649      +69     
- Misses         78       79       +1     
  Partials       59       59              

Impacted Files	Coverage Δ
parser.go	93.89% <88.88%> (+0.17%)	⬆️
packages.go	90.66% <94.44%> (+0.71%)	⬆️
schema.go	100.00% <100.00%> (ø)
types.go	100.00% <100.00%> (ø)
generics.go	94.61% <0.00%> (+0.30%)	⬆️

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[ubogdan]

LGTM

[ubogdan]

Please improve the unit test for newly added code.

[mstrYoda]

Please improve the unit test for newly added code.

I improved the unit tests according to changes 🙏

[ubogdan]

Build failed

[mstrYoda]

Build failed

Actually make test is passing on my local. Can we retry the pipeline?

[ubogdan]

The error is obvious https://github.com/swaggo/swag/runs/7767202306?check_suite_focus=true , Try to run the tests against a go version lower than 1.18.

[ubogdan]

https://github.com/swaggo/swag/pull/1283/checks?check_run_id=7801911678

[mstrYoda]

Hey @ubogdan, I need your opinion here:

• Do we need to add the newly created method parseFunctionScopedTypesFromFile() to packages.loadExternalPackage() L260 too?

[mstrYoda]

Hey @ubogdan, I need your opinion here:

• Do we need to add the newly created method parseFunctionScopedTypesFromFile() to packages.loadExternalPackage() L260 too?

Hi @ubogdan what about it 🤔 Can we able to merge it as is?

[ubogdan]

@mstrYoda I'm quite busy. I'm glad you figured out by yourself.

[ubogdan]

LGTM

[ubogdan]

@mstrYoda Thanks for your contribution!

[mstrYoda]

@mstrYoda Thanks for your contribution!

Thank you for your effort 🙏 sorry for the mentioning you a lot :)