Module: Docscribe::InlineRewriter::DocBuilder

Defined in:
lib/docscribe/inline_rewriter/doc_builder.rb

Overview

Build generated YARD-style doc lines for methods and attribute helpers.

DocBuilder combines:

  • Ruby visibility/container metadata from Collector

  • optional external signatures from Sorbet/RBS providers

  • fallback AST inference from Docscribe::Infer

It is responsible for producing complete doc blocks for aggressive mode and “missing lines only” payloads for safe merge mode.

Class Method Summary collapse

Class Method Details

.build(insertion, config:, signature_provider: nil, core_rbs_provider: nil, param_types: nil) ⇒ String?

Note:

module_function: when included, also defines #build (instance visibility: private)

Build a complete doc block for one collected method insertion.

External signatures, when available, override inferred param and return types.

Parameters:

  • insertion (Docscribe::InlineRewriter::Collector::Insertion)
  • config (Docscribe::Config)
  • signature_provider (Object, nil) (defaults to: nil) —

    provider responding to ‘signature_for(container:, scope:, name:)`

  • core_rbs_provider (nil) (defaults to: nil) —

    Param documentation.

  • param_types (nil) (defaults to: nil) —

    Param documentation.

Returns:

  • (String, nil)

Raises:

  • (StandardError) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 35

def build(insertion, config:, signature_provider: nil, core_rbs_provider: nil, param_types: nil)
  node = insertion.node
  name = SourceHelpers.node_name(node)
  return nil unless name

  indent = SourceHelpers.line_indent(node)
  scope = insertion.scope
  visibility = insertion.visibility
  container = insertion.container
  method_symbol = scope == :instance ? '#' : '.'

  external_sig = signature_provider&.signature_for(
    container: container,
    scope: scope,
    name: name
  )

  effective_param_types =
    param_types || build_param_types_from_node(node, external_sig: external_sig, config: config)

  if config.emit_param_tags?
    params_lines = build_params_lines(node, indent, external_sig: external_sig, config: config)
  end
  raise_types = config.emit_raise_tags? ? Docscribe::Infer.infer_raises_from_node(node) : []

  returns_spec = Docscribe::Infer.returns_spec_from_node(
    node,
    fallback_type: config.fallback_type,
    nil_as_optional: config.nil_as_optional?,
    param_types: effective_param_types,
    core_rbs_provider: core_rbs_provider
  )

  normal_type = external_sig&.return_type || returns_spec[:normal]
  rescue_specs = returns_spec[:rescues] || []

  lines = []

  if config.emit_header?
    lines << "#{indent}# +#{container}#{method_symbol}#{name}+ -> #{normal_type}"
    lines << "#{indent}#"
  end

  if config.include_default_message?
    lines << "#{indent}# #{config.default_message(scope, visibility)}"
    lines << "#{indent}#"
  end

  if config.emit_visibility_tags?
    case visibility
    when :private
      lines << "#{indent}# @private"
    when :protected
      lines << "#{indent}# @protected"
    end
  end

  if insertion.respond_to?(:module_function) && insertion.module_function
    included_vis =
      if insertion.respond_to?(:included_instance_visibility) && insertion.included_instance_visibility
        insertion.included_instance_visibility
      else
        :private
      end

    lines << "#{indent}# @note module_function: when included, also defines ##{name} " \
             "(instance visibility: #{included_vis})"
  end

  lines.concat(params_lines) if params_lines
  raise_types.each { |rt| lines << "#{indent}# @raise [#{rt}]" } if config.emit_raise_tags?
  lines << "#{indent}# @return [#{normal_type}]" if config.emit_return_tag?(scope, visibility)

  if config.emit_rescue_conditional_returns?
    rescue_specs.each do |exceptions, rtype|
      lines << "#{indent}# @return [#{rtype}] if #{exceptions.join(', ')}"
    end
  end
  plugin_tags = Docscribe::Plugin.run_tag_plugins(
    build_plugin_context(insertion, normal_type: normal_type)
  )
  lines.concat(render_plugin_tags(plugin_tags, indent))
  lines.map { |l| "#{l}\n" }.join
rescue StandardError => e
  debug_warn(e, insertion: insertion, name: name || '(unknown)', phase: 'DocBuilder.build')
  nil
end

.build_merge_additions(insertion, existing_lines:, config:, signature_provider: nil, core_rbs_provider: nil, param_types: nil) ⇒ String?

Note:

module_function: when included, also defines #build_merge_additions (instance visibility: private)

Build only the missing doc lines that should be merged into an existing doc-like block.

This is used by safe mode for non-destructive updates.

Parameters:

Returns:

  • (String, nil)

Raises:

  • (StandardError) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 137

def build_merge_additions(insertion, existing_lines:, config:, signature_provider: nil, core_rbs_provider: nil,
                          param_types: nil)
  node = insertion.node
  name = SourceHelpers.node_name(node)
  return '' unless name

  indent = SourceHelpers.line_indent(node)
  info = parse_existing_doc_tags(existing_lines)
  scope = insertion.scope
  visibility = insertion.visibility

  external_sig = signature_provider&.signature_for(
    container: insertion.container,
    scope: scope,
    name: name
  )

  returns_spec = Docscribe::Infer.returns_spec_from_node(
    node,
    fallback_type: config.fallback_type,
    nil_as_optional: config.nil_as_optional?,
    param_types: param_types,
    core_rbs_provider: core_rbs_provider
  )

  normal_type = external_sig&.return_type || returns_spec[:normal]
  rescue_specs = returns_spec[:rescues] || []

  lines = []
  lines << "#{indent}#" if existing_lines.any? && existing_lines.last.strip != '#'

  if config.emit_visibility_tags?
    if visibility == :private && !info[:has_private]
      lines << "#{indent}# @private"
    elsif visibility == :protected && !info[:has_protected]
      lines << "#{indent}# @protected"
    end
  end

  if insertion.respond_to?(:module_function) && insertion.module_function && !info[:has_module_function_note]
    included_vis = insertion.included_instance_visibility || :private
    lines << "#{indent}# @note module_function: when included, also defines ##{name} " \
             "(instance visibility: #{included_vis})"
  end

  if config.emit_param_tags?
    all_params = build_params_lines(node, indent, external_sig: external_sig, config: config)
    all_params&.each do |pl|
      pname = extract_param_name_from_param_line(pl)
      next if pname.nil? || info[:param_names].include?(pname)

      lines << pl
    end
  end

  if config.emit_raise_tags?
    inferred = Docscribe::Infer.infer_raises_from_node(node)
    existing = info[:raise_types] || {}
    missing = inferred.reject { |rt| existing[rt] }
    missing.each { |rt| lines << "#{indent}# @raise [#{rt}]" }
  end

  if config.emit_return_tag?(scope, visibility) && !info[:has_return]
    lines << "#{indent}# @return [#{normal_type}]"
  end

  if config.emit_rescue_conditional_returns? && !info[:has_return]
    rescue_specs.each do |exceptions, rtype|
      lines << "#{indent}# @return [#{rtype}] if #{exceptions.join(', ')}"
    end
  end

  useful = lines.reject { |l| l.strip == '#' }
  return '' if useful.empty?

  lines.map { |l| "#{l}\n" }.join
rescue StandardError => e
  debug_warn(e, insertion: insertion, name: name || '(unknown)', phase: 'DocBuilder.build_merge_additions')
  nil
end

.build_missing_merge_result(insertion, existing_lines:, config:, signature_provider: nil, core_rbs_provider: nil, param_types: nil, strategy: nil) ⇒ Hash

Note:

module_function: when included, also defines #build_missing_merge_result (instance visibility: private)

Build structured missing-line information for safe merge mode.

Returns both:

  • generated missing lines

  • structured reasons used by ‘–explain`

Parameters:

  • insertion (Docscribe::InlineRewriter::Collector::Insertion)
  • existing_lines (Array<String>)
  • config (Docscribe::Config)
  • signature_provider (Object, nil) (defaults to: nil)
  • core_rbs_provider (nil) (defaults to: nil) —

    Param documentation.

  • param_types (nil) (defaults to: nil) —

    Param documentation.

  • strategy (nil) (defaults to: nil) —

    Param documentation.

Returns:

  • (Hash)

Raises:

  • (StandardError) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 234

def build_missing_merge_result(insertion, existing_lines:, config:, signature_provider: nil,
                               core_rbs_provider: nil, param_types: nil, strategy: nil)
  node = insertion.node
  name = SourceHelpers.node_name(node)
  return { lines: [], reasons: [] } unless name

  indent = SourceHelpers.line_indent(node)
  info = parse_existing_doc_tags(existing_lines)
  scope = insertion.scope
  visibility = insertion.visibility

  external_sig = signature_provider&.signature_for(
    container: insertion.container,
    scope: scope,
    name: name
  )

  returns_spec = Docscribe::Infer.returns_spec_from_node(
    node,
    fallback_type: config.fallback_type,
    nil_as_optional: config.nil_as_optional?,
    param_types: param_types,
    core_rbs_provider: core_rbs_provider
  )

  normal_type = external_sig&.return_type || returns_spec[:normal]
  rescue_specs = returns_spec[:rescues] || []

  lines = []
  reasons = []

  if config.emit_visibility_tags?
    if visibility == :private && !info[:has_private]
      lines << "#{indent}# @private\n"
      reasons << { type: :missing_visibility, message: 'missing @private' }
    elsif visibility == :protected && !info[:has_protected]
      lines << "#{indent}# @protected\n"
      reasons << { type: :missing_visibility, message: 'missing @protected' }
    end
  end

  if insertion.respond_to?(:module_function) && insertion.module_function && !info[:has_module_function_note]
    included_vis = insertion.included_instance_visibility || :private
    lines << "#{indent}# @note module_function: when included, also defines ##{name} " \
             "(instance visibility: #{included_vis})\n"
    reasons << { type: :missing_module_function_note, message: 'missing module_function note' }
  end

  if config.emit_param_tags?
    all_params = build_params_lines(node, indent, external_sig: external_sig, config: config)

    all_params&.each do |pl|
      pname = extract_param_name_from_param_line(pl)
      next unless pname

      if !info[:param_names].include?(pname)
        lines << "#{pl}\n"
        reasons << { type: :missing_param, message: "missing @param #{pname}", extra: { param: pname } }
      elsif info[:param_types][pname] && strategy != :safe
        new_type = extract_param_type_from_param_line(pl)
        if new_type && info[:param_types][pname] != new_type
          lines << "#{pl}\n"
          reasons << {
            type: :updated_param,
            message: "updated @param #{pname} from #{info[:param_types][pname]} to #{new_type}",
            extra: { param: pname }
          }
        end
      end
    end
  end

  if config.emit_raise_tags?
    inferred = Docscribe::Infer.infer_raises_from_node(node)
    existing = info[:raise_types] || {}
    missing = inferred.reject { |rt| existing[rt] }

    missing.each do |rt|
      lines << "#{indent}# @raise [#{rt}]\n"
      reasons << { type: :missing_raise, message: "missing @raise [#{rt}]", extra: { raise_type: rt } }
    end
  end

  if config.emit_return_tag?(scope, visibility)
    if !info[:has_return]
      lines << "#{indent}# @return [#{normal_type}]\n"
      reasons << { type: :missing_return, message: 'missing @return' }
    elsif info[:return_type] && info[:return_type] != normal_type && strategy != :safe
      lines << "#{indent}# @return [#{normal_type}]\n"
      reasons << {
        type: :updated_return,
        message: "updated @return from #{info[:return_type]} to #{normal_type}"
      }
    end
  end

  if config.emit_rescue_conditional_returns? && !info[:has_return]
    rescue_specs.each do |exceptions, rtype|
      lines << "#{indent}# @return [#{rtype}] if #{exceptions.join(', ')}\n"
      reasons << {
        type: :missing_return,
        message: "missing conditional @return for #{exceptions.join(', ')}"
      }
    end
  end
  plugin_tags = Docscribe::Plugin.run_tag_plugins(
    build_plugin_context(insertion, normal_type: normal_type)
  )
  plugin_tags.each do |tag|
    next if info[:plugin_tags]&.[](tag.name)

    rendered = render_plugin_tags([tag], indent).first
    lines << "#{rendered}\n"
    reasons << { type: :missing_plugin_tag, message: "missing @#{tag.name}" }
  end
  { lines: lines, reasons: reasons }
rescue StandardError => e
  debug_warn(e, insertion: insertion, name: name || '(unknown)', phase: 'DocBuilder.build_missing_merge_result')
  { lines: [], reasons: [] }
end

.build_param_types_from_node(node, external_sig:, config:) ⇒ Hash{String => String}?

Note:

module_function: when included, also defines #build_param_types_from_node (instance visibility: private)

Build a param name => type map from a method node.

Parameters:

  • node (Parser::AST::Node) —

    def or defs node

  • external_sig (Object, nil) —

    external signature if available

  • config (Docscribe::Config)

Returns:

  • (Hash{String => String}, nil) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 449

def build_param_types_from_node(node, external_sig:, config:)
  return nil unless node

  args =
    case node.type
    when :def then node.children[1]
    when :defs then node.children[2]
    end

  return nil unless args

  param_types = {}

  (args.children || []).each do |a|
    case a.type
    when :arg
      pname = a.children.first.to_s
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             pname,
             nil,
             fallback_type: config.fallback_type,
             treat_options_keyword_as_hash: config.treat_options_keyword_as_hash?
           )
      param_types[pname] = ty

    when :optarg
      pname, default = *a
      pname = pname.to_s
      default_src = default&.loc&.expression&.source
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             pname,
             default_src,
             fallback_type: config.fallback_type,
             treat_options_keyword_as_hash: config.treat_options_keyword_as_hash?
           )
      param_types[pname] = ty

    when :kwarg
      pname = a.children.first.to_s
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             "#{pname}:",
             nil,
             fallback_type: config.fallback_type,
             treat_options_keyword_as_hash: config.treat_options_keyword_as_hash?
           )
      param_types[pname] = ty

    when :kwoptarg
      pname, default = *a
      pname = pname.to_s
      default_src = default&.loc&.expression&.source
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             "#{pname}:",
             default_src,
             fallback_type: config.fallback_type,
             treat_options_keyword_as_hash: config.treat_options_keyword_as_hash?
           )
      param_types[pname] = ty
    end
  end

  param_types.empty? ? nil : param_types
end

.build_params_lines(node, indent, external_sig:, config:) ⇒ Array<String>?

Note:

module_function: when included, also defines #build_params_lines (instance visibility: private)

Build generated ‘@param` / `@option` lines for a method node.

External signatures take precedence over inferred parameter types.

Parameters:

Returns:

  • (Array<String>, nil) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 527

def build_params_lines(node, indent, external_sig:, config:)
  fallback_type = config.fallback_type
  treat_options_keyword_as_hash = config.treat_options_keyword_as_hash?
  param_tag_style = config.param_tag_style
  param_documentation = config.include_param_documentation? ? config.param_documentation : ''

  args =
    case node.type
    when :def then node.children[1]
    when :defs then node.children[2]
    end

  return nil unless args

  params = []

  (args.children || []).each do |a|
    case a.type
    when :arg
      pname = a.children.first.to_s
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             pname,
             nil,
             fallback_type: fallback_type,
             treat_options_keyword_as_hash: treat_options_keyword_as_hash
           )
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

    when :optarg
      pname, default = *a
      pname = pname.to_s
      default_src = default&.loc&.expression&.source
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             pname,
             default_src,
             fallback_type: fallback_type,
             treat_options_keyword_as_hash: treat_options_keyword_as_hash
           )
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

      hash_option_pairs(default).each do |pair|
        key_node, value_node = pair.children
        option_key = option_key_name(key_node)
        option_type = Infer::Literals.type_from_literal(value_node, fallback_type: fallback_type)
        option_default = node_default_literal(value_node)

        line = "#{indent}# @option #{pname} [#{option_type}] :#{option_key}"
        line += " (#{option_default})" if option_default
        line += ' Option documentation.'
        params << line
      end

    when :kwarg
      pname = a.children.first.to_s
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             "#{pname}:",
             nil,
             fallback_type: fallback_type,
             treat_options_keyword_as_hash: treat_options_keyword_as_hash
           )
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

    when :kwoptarg
      pname, default = *a
      pname = pname.to_s
      default_src = default&.loc&.expression&.source
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             "#{pname}:",
             default_src,
             fallback_type: fallback_type,
             treat_options_keyword_as_hash: treat_options_keyword_as_hash
           )
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

    when :restarg
      pname = (a.children.first || 'args').to_s
      ty =
        if external_sig&.rest_positional&.element_type
          "Array<#{external_sig.rest_positional.element_type}>"
        else
          Infer.infer_param_type(
            "*#{pname}",
            nil,
            fallback_type: fallback_type,
            treat_options_keyword_as_hash: treat_options_keyword_as_hash
          )
        end
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

    when :kwrestarg
      pname = (a.children.first || 'kwargs').to_s
      ty = external_sig&.rest_keywords&.type ||
           Infer.infer_param_type(
             "**#{pname}",
             nil,
             fallback_type: fallback_type,
             treat_options_keyword_as_hash: treat_options_keyword_as_hash
           )
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

    when :blockarg
      pname = (a.children.first || 'block').to_s
      ty = external_sig&.param_types&.[](pname) ||
           Infer.infer_param_type(
             "&#{pname}",
             nil,
             fallback_type: fallback_type,
             treat_options_keyword_as_hash: treat_options_keyword_as_hash
           )
      params << format_param_tag(indent, pname, ty, param_documentation, style: param_tag_style)

    when :forward_arg
      # skip
    end
  end

  params.empty? ? nil : params
end

.build_plugin_context(insertion, normal_type:) ⇒ Docscribe::Plugin::Context

Note:

module_function

Note:

module_function: when included, also defines #build_plugin_context (instance visibility: private)

Build a Plugin::Context from a collected insertion.

Parameters:

Returns:

Raises:

  • (StandardError) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 740

def build_plugin_context(insertion, normal_type:)
  node = insertion.node
  source = begin
    node.loc.expression.source
  rescue StandardError
    ''
  end

  Docscribe::Plugin::Context.new(
    node: node,
    container: insertion.container,
    scope: insertion.scope,
    visibility: insertion.visibility,
    method_name: SourceHelpers.node_name(node),
    inferred_params: {},
    inferred_return: normal_type,
    source: source
  )
end

.debug? ⇒ Boolean

Note:

module_function: when included, also defines #debug? (instance visibility: private)

Check whether debug mode is enabled.

Returns:

  • (Boolean) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 804

def debug?
  ENV['DOCSCRIBE_DEBUG'] == '1'
end

.debug_warn(e, insertion:, name:, phase:) ⇒ void

Note:

module_function: when included, also defines #debug_warn (instance visibility: private)

This method returns an undefined value.

Print a debug warning for a failed doc build phase.

Parameters:

  • e (StandardError) —

    the error that occurred

  • insertion (Collector::Insertion) —

    the method insertion being processed

  • name (String) —

    the method name

  • phase (String) —

    the processing phase



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 783

def debug_warn(e, insertion:, name:, phase:)
  return unless debug?

  node = insertion&.node
  buf_name = node&.loc&.expression&.source_buffer&.name || '(unknown)'
  line = node&.loc&.expression&.line
  scope = insertion&.scope
  method_symbol = scope == :class ? '.' : '#'
  container = insertion&.container || 'Object'

  where = +buf_name.to_s
  where << ":#{line}" if line
  where << " #{container}#{method_symbol}#{name}"

  warn "Docscribe DEBUG: #{phase} failed at #{where}: #{e.class}: #{e.message}"
end

.extract_param_name_from_param_line(line) ⇒ String?

Note:

module_function: when included, also defines #extract_param_name_from_param_line (instance visibility: private)

Extract the parameter name from a ‘@param` doc line.

Handles both ‘“@param [Type] name”` and `“@param name [Type]”` styles.

Parameters:

  • line (String) —

    a ‘@param` doc line

Returns:

  • (String, nil) —

    the parameter name or nil



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 714

def extract_param_name_from_param_line(line)
  return Regexp.last_match(1) if line =~ /@param\b\s+\[[^\]]+\]\s+(\S+)/
  return Regexp.last_match(1) if line =~ /@param\b\s+(\S+)\s+\[[^\]]+\]/

  nil
end

.extract_param_type_from_param_line(line) ⇒ Object

Note:

module_function: when included, also defines #extract_param_type_from_param_line (instance visibility: private)

Method documentation.

Parameters:

  • line (Object) —

    Param documentation.

Returns:

  • (Object) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 726

def extract_param_type_from_param_line(line)
  if (m = line.match(/@param\s+\[([^\]]+)\]\s+\S+/) || line.match(/@param\s+\S+\s+\[([^\]]+)\]/))
    m[1]
  end
end

.extract_raise_types_from_line(line) ⇒ String, ...

Note:

module_function: when included, also defines #extract_raise_types_from_line (instance visibility: private)

Extract exception names from a ‘@raise` doc line.

Parameters:

  • line (String) —

    a ‘@raise` doc line

Returns:

  • (String, nil) —

    the exception name or nil

  • (Array) —

    if StandardError or line not matched

Raises:

  • (StandardError) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 418

def extract_raise_types_from_line(line)
  return [] unless line.match?(/^\s*#\s*@raise\b/)

  if (m = line.match(/^\s*#\s*@raise\s*\[([^\]]+)\]/))
    parse_raise_bracket_list(m[1])
  elsif (m = line.match(/^\s*#\s*@raise\s+([A-Z]\w*(?:::[A-Z]\w*)*)/))
    [m[1]]
  else
    []
  end
rescue StandardError
  []
end

.format_param_tag(indent, name, type, documentation, style:) ⇒ String

Note:

module_function: when included, also defines #format_param_tag (instance visibility: private)

Format a ‘@param` tag line using the configured param tag style.

Parameters:

  • indent (String) —

    leading whitespace

  • name (String) —

    parameter name

  • type (String) —

    parameter type

  • documentation (String) —

    optional documentation text

  • style (String, Symbol) —

    param tag style (‘“name_type”` or `“type_name”`)

Returns:

  • (String) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 659

def format_param_tag(indent, name, type, documentation, style:)
  doc = documentation.to_s.strip
  type = type.to_s

  line = case style.to_s
         when 'name_type'
           "#{indent}# @param #{name} [#{type}]"
         else
           "#{indent}# @param [#{type}] #{name}"
         end

  doc.empty? ? line : "#{line} #{doc}"
end

.hash_option_pairs(node) ⇒ Array<Parser::AST::Node>

Note:

module_function: when included, also defines #hash_option_pairs (instance visibility: private)

Extract keyword argument option pairs from a hash default value.

Parameters:

  • node (Parser::AST::Node, nil) —

    a ‘:hash` node

Returns:

  • (Array<Parser::AST::Node>) —

    the ‘:pair` children



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 678

def hash_option_pairs(node)
  return [] unless node&.type == :hash

  node.children.select { |child| child.is_a?(Parser::AST::Node) && child.type == :pair }
end

.node_default_literal(node) ⇒ String?

Note:

module_function: when included, also defines #node_default_literal (instance visibility: private)

Get the raw source literal for a default value node.

Parameters:

  • node (Parser::AST::Node, nil) —

    a default value node

Returns:

  • (String, nil) —

    the source literal or nil



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 703

def node_default_literal(node)
  node&.loc&.expression&.source
end

.option_key_name(key_node) ⇒ String

Note:

module_function: when included, also defines #option_key_name (instance visibility: private)

Get the symbol name from an option key node.

Parameters:

  • key_node (Parser::AST::Node) —

    a ‘:sym` node

Returns:

  • (String) —

    the option key name



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 689

def option_key_name(key_node)
  case key_node&.type
  when :sym, :str
    key_node.children.first.to_s
  else
    key_node&.loc&.expression&.source.to_s.sub(/\A:/, '')
  end
end

.parse_existing_doc_tags(lines) ⇒ Hash

Note:

module_function: when included, also defines #parse_existing_doc_tags (instance visibility: private)

Parse existing doc comment lines and extract known YARD tags.

Extracts: ‘@param` names, `@return`, `@raise`, `@private`, `@protected`, `@module_function` notes, and `@option` lines.

Parameters:

  • lines (Array<String>) —

    existing doc comment lines

Returns:

  • (Hash) —

    parsed tag info



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 363

def parse_existing_doc_tags(lines)
  param_names = {}
  param_types = {}
  has_return = false
  return_type = nil
  has_private = false
  has_protected = false
  has_module_function_note = false
  raise_types = {}
  plugin_tags = {}

  Array(lines).each do |line|
    if (m = line.match(/^\s*#\s*@(\w+)\b/))
      plugin_tags[m[1]] = true
    end
    if (pname = extract_param_name_from_param_line(line))
      param_names[pname] = true
      if (type_match = line.match(/@param\s+\[([^\]]+)\]\s+\S+/) || line.match(/@param\s+\S+\s+\[([^\]]+)\]/))
        param_types[pname] = type_match[1]
      end
    end

    if line.match?(/^\s*#\s*@return\b/)
      has_return = true
      if (m = line.match(/@return\s+\[([^\]]+)\]/))
        return_type = m[1]
      end
    end
    has_private ||= line.match?(/^\s*#\s*@private\b/)
    has_protected ||= line.match?(/^\s*#\s*@protected\b/)
    has_module_function_note ||= line.match?(/^\s*#\s*@note\s+module_function:/)

    extract_raise_types_from_line(line).each { |t| raise_types[t] = true }
  end

  {
    param_names: param_names,
    param_types: param_types,
    has_return: has_return,
    return_type: return_type,
    raise_types: raise_types,
    has_private: has_private,
    has_protected: has_protected,
    has_module_function_note: has_module_function_note,
    plugin_tags: plugin_tags
  }
end

.parse_raise_bracket_list(s) ⇒ Array<String>?

Note:

module_function: when included, also defines #parse_raise_bracket_list (instance visibility: private)

Parse exception names from a ‘@raise [ExceptionA, ExceptionB]` line.

Parameters:

  • s (String) —

    the ‘@raise` line text

Returns:

  • (Array<String>, nil) —

    the exception names or nil



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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 437

def parse_raise_bracket_list(s)
  s.to_s.split(',').map(&:strip).reject(&:empty?)
end

.render_plugin_tags(tags, indent) ⇒ Array<String>

Note:

module_function

Note:

module_function: when included, also defines #render_plugin_tags (instance visibility: private)

Render plugin tags as indented comment lines.

Parameters:

Returns:

  • (Array<String>) 


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# File 'lib/docscribe/inline_rewriter/doc_builder.rb', line 767

def render_plugin_tags(tags, indent)
  tags.map do |tag|
    type_part = tag.types&.any? ? " [#{tag.types.join(', ')}]" : ''
    text_part = tag.text ? " #{tag.text}" : ''
    "#{indent}# @#{tag.name}#{type_part}#{text_part}"
  end
end