Class: Prism::Merge::BeginNodeClauseHeaderEmitter

Inherits:
Object
  • Object
show all
Includes:
SourceLineLookup
Defined in:
lib/prism/merge/begin_node_clause_header_emitter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(merger:) ⇒ BeginNodeClauseHeaderEmitter

Returns a new instance of BeginNodeClauseHeaderEmitter.



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# File 'lib/prism/merge/begin_node_clause_header_emitter.rb', line 10

def initialize(merger:)
  @merger = merger
end

Instance Attribute Details

#merger ⇒ Object (readonly)

Returns the value of attribute merger.



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

def merger
  @merger
end

Instance Method Details

#emit(template_clause_node:, template_region:, dest_clause_node:, dest_region:, header_source:, decision:, template_inline_by_line:, dest_inline_by_line:) ⇒ Object 



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

def emit(template_clause_node:, template_region:, dest_clause_node:, dest_region:, header_source:, decision:,
         template_inline_by_line:, dest_inline_by_line:)
  header_node = header_source == :template ? template_clause_node : dest_clause_node
  header_region = header_source == :template ? template_region : dest_region
  header_analysis = header_source == :template ? merger.template_analysis : merger.dest_analysis
  header_end_line = merger.send(:clause_header_end_line, header_node, header_region)
  template_header_end_line = merger.send(:clause_header_end_line, template_clause_node, template_region)
  dest_header_end_line = merger.send(:clause_header_end_line, dest_clause_node, dest_region)

  (header_region[:start_line]..header_end_line).each do |line_num|
    line = required_source_line(
      header_analysis,
      line_num,
      context: 'emitting begin-clause header line'
    )

    if header_source == :template &&
       line_num == template_header_end_line &&
       template_inline_by_line[line_num].empty?
      dest_clause_inline = dest_inline_by_line[dest_header_end_line]
      line = merger.send(:append_inline_comment_entries, line, dest_clause_inline) if dest_clause_inline.any?
    end

    merger.result.add_line(
      line,
      decision: decision,
      template_line: header_source == :template ? line_num : nil,
      dest_line: header_source == :destination ? line_num : nil
    )
  end
end