[Cuis-dev] Several bug fixes for ExtractMethod

[Joel Camera]

Hello folks!

Here are several bug fixes for ExtractMethod:

   1. *Extracting a method when the receiver is a **LiteralVariableNode*
   Trying to extract a method when the receiver is a LiteralVariableNode in
   the AST throws an exception. For example, if you want to extract Smalltalk
   at: #MCPTestSubject, Smalltalk is represented as a LiteralVariableNode.
   2. *Extracting multiple assignments when equivalent code exists in
   another message*
   When extracting more than one assignment and equivalent code exists in
   another message, we were trying to add two assignment blocks to the new
   method.
   3. *Using **methodNode** instead of **notOptimizedMethodNode*
   We were using methodNode instead of notOptimizedMethodNode. As a result,
   we were finding some nodes that didn't have a source range in the method.
   4. *Shadowing issue with instance variables*
   We had a shadowing issue when an instance variable was used as a
   parameter in the new message. The new message name input suggested the
   instance variable's name, which ended up causing a shadowing exception.
   5. *Extracting code with an assignment and a non-local return*
   The last issue occurred when trying to extract code containing both an
   assignment and a non-local return. The extraction failed because of an
   incorrect validation.

Have a nice day!

<https://10pines.com/>Joel CámeraAgile Software Development

Alem 896, Floor 6, Buenos Aires, Argentina

+54 9 011 6091 3125
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