Class: Prism::Merge::BeginNodeRescueSemantics

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(template_analysis:, dest_analysis:) ⇒ BeginNodeRescueSemantics

Returns a new instance of BeginNodeRescueSemantics.



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 8

def initialize(template_analysis:, dest_analysis:)
  @template_analysis = template_analysis
  @dest_analysis = dest_analysis
end

Instance Attribute Details

#dest_analysis ⇒ Object (readonly)

Returns the value of attribute dest_analysis.



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 6

def dest_analysis
  @dest_analysis
end

#template_analysis ⇒ Object (readonly)

Returns the value of attribute template_analysis.



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 6

def template_analysis
  @template_analysis
end

Instance Method Details

#canonicalize_begin_clause_kind_order(clause_types) ⇒ Object 



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 56

def canonicalize_begin_clause_kind_order(clause_types)
  ruby_rescue_semantics.canonicalize_begin_clause_kind_order(clause_types)
end

#canonicalize_rescue_clause_order(clause_types) ⇒ Object 



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 52

def canonicalize_rescue_clause_order(clause_types)
  ruby_rescue_semantics.canonicalize_rescue_clause_order(clause_types)
end

#merge_ordered_clause_types(primary_types, secondary_types) ⇒ Object 



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 48

def merge_ordered_clause_types(primary_types, secondary_types)
  ruby_rescue_semantics.merge_ordered_clause_types(primary_types, secondary_types)
end

#normalized_clause_body_and_header_source(template_clause_node:, dest_clause_node:, clause_body:, preferred_source:) ⇒ Object 



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# File 'lib/prism/merge/begin_node_rescue_semantics.rb', line 13

def normalized_clause_body_and_header_source(template_clause_node:, dest_clause_node:, clause_body:,
                                             preferred_source:)
  unless template_clause_node.type.to_s == 'rescue_node' && dest_clause_node.type.to_s == 'rescue_node'
    return { header_source: preferred_source,
             clause_body: clause_body }
  end

  template_reference = rescue_node_reference_name(template_clause_node)
  dest_reference = rescue_node_reference_name(dest_clause_node)
  return { header_source: preferred_source, clause_body: clause_body } if template_reference == dest_reference

  merged_references = local_variable_read_names_in_source(clause_body)
  needs_template_reference = template_reference && merged_references.include?(template_reference)
  needs_dest_reference = dest_reference && merged_references.include?(dest_reference)

  header_source = if needs_dest_reference && !needs_template_reference
                    :destination
                  elsif needs_template_reference && !needs_dest_reference
                    :template
                  else
                    preferred_source
                  end

  chosen_reference = header_source == :template ? template_reference : dest_reference
  alternate_reference = header_source == :template ? dest_reference : template_reference
  normalized_body = if chosen_reference && alternate_reference && merged_references.include?(alternate_reference)
                      rewrite_local_reference_in_source(clause_body, from: alternate_reference,
                                                                     to: chosen_reference)
                    else
                      clause_body
                    end

  { header_source: header_source, clause_body: normalized_body }
end