Class: Prism::Merge::BlockBinding

Inherits:
Object
  • Object
show all
Defined in:
lib/prism/merge/block_binding.rb

Overview

Finds a simple block parameter on a structurally identified call.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(call:, parameter:) ⇒ BlockBinding

Returns a new instance of BlockBinding.



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# File 'lib/prism/merge/block_binding.rb', line 9

def initialize(call:, parameter:)
  @call = call
  @parameter = parameter
end

Instance Attribute Details

#call ⇒ Object (readonly)

Returns the value of attribute call.



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# File 'lib/prism/merge/block_binding.rb', line 7

def call
  @call
end

#parameter ⇒ Object (readonly)

Returns the value of attribute parameter.



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# File 'lib/prism/merge/block_binding.rb', line 7

def parameter
  @parameter
end

Class Method Details

.find(source, &matcher) ⇒ Object 



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# File 'lib/prism/merge/block_binding.rb', line 22

def self.find(source, &matcher)
  parse_result = TreeHaver.with_backend(Prism::Merge::BACKEND_REFERENCE.id) do
    TreeHaver.parser_for(:ruby, backend_type: :prism).parse(source).parse_result
  end
  return unless parse_result.success?

  call = parse_result.value.breadth_first_search_all { |node| node.is_a?(::Prism::CallNode) }.find(&matcher)
  parameter = call&.block&.parameters&.parameters&.requireds&.first
  new(call: call, parameter: parameter) if parameter
end

Instance Method Details

#name ⇒ Object 



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# File 'lib/prism/merge/block_binding.rb', line 14

def name
  parameter.name.to_s
end

#scope_range ⇒ Object 



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# File 'lib/prism/merge/block_binding.rb', line 18

def scope_range
  call.block.location.start_offset...call.block.location.end_offset
end