feat: generate generic mapping only with LSP compatible methods

[trejjam]

Generate generic mapping only with LSP compatible methods

Description

Generic mapping is selecting target methods only by type argument constraint. This PR filters them also by LSP type compatibility.

Right now, the mapping does not produce valid code when e.g. source is a specific abstract type (not the object). And your mapper has e.g. enum mapping. The compiler then complains: Error CS8121 : An expression of type 'TheClass' cannot be handled by a pattern of type 'TheEnum'. on generated code that looks like this:

partial T Map<T>(TheClass source)
{
    return source switch
            {
                global::TheEnum x when typeof(T).IsAssignableFrom(typeof(global::TheEnum)) => (T)(object)MapToTheEnum(x),
            };
}

Checklist

• The existing code style is followed
• The commit message follows our guidelines
• Performed a self-review of my code
• Hard-to-understand areas of my code are commented
• The documentation is updated (as applicable)
• Unit tests are added/updated
• Integration tests are added/updated (as applicable, especially if feature/bug depends on roslyn or framework version in use)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0aa8b0b) 91.40% compared to head (e18f6d8) 91.40%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1000   +/-   ##
=======================================
  Coverage   91.40%   91.40%           
=======================================
  Files         223      223           
  Lines        7256     7259    +3     
  Branches      911      913    +2     
=======================================
+ Hits         6632     6635    +3     
  Misses        412      412           
  Partials      212      212           

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[latonz]

Thank you for this contribution 😊

[github-actions]

🎉 This PR is included in version 3.3.1-next.1 🎉

The release is available on:

• GitHub release
• v3.3.1-next.1

Your semantic-release bot 📦🚀

[github-actions]

🎉 This PR is included in version 3.4.0 🎉

The release is available on:

• GitHub release
• v3.4.0

Your semantic-release bot 📦🚀