### Home Classes Methods

### In Files

- lib/yard/handlers/ruby/base.rb

### Parent

YARD::Handlers::Base

### Methods

- ::handles?
- ::meta_type
- ::method_call
- #call_params
- #caller_method
- #parse_block

### Included Modules

- YARD::Parser::Ruby
- YARD::Parser::Ruby

### Files

- LICENSE.txt
- MIT.txt

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No matching classes.

# YARD::Handlers::Ruby::Base

This is the base handler class for the new-style (1.9) Ruby parser. All handlers that subclass this base class will be used when the new-style parser is used. For implementing legacy handlers, see {Legacy::Base}.

@abstract See {Handlers::Base} for subclassing information. @see Handlers::Base @see Legacy::Base

### Public Class Methods

handles?(node) click to toggle source

@return [Boolean] whether or not an {AstNode} object should be

    handled by this handler

    # File lib/yard/handlers/ruby/base.rb, line 110
    def handles?(node)
      handlers.any? do |a_handler|
        case a_handler
        when Symbol
          a_handler == node.type
        when String
          node.source == a_handler
        when Regexp
          node.source =~ a_handler
        when Parser::Ruby::AstNode
          a_handler == node
        when HandlesExtension
          a_handler.matches?(node)
        end
      end
    end

meta_type(type) click to toggle source

Matcher for handling a node with a specific meta-type. An {AstNode} has a {AstNode#type} to define its type but can also be associated with a set of types. For instance, `:if` and `:unless` are both of the meta-type `:condition`.

A meta-type is any method on the {AstNode} class ending in "?", though you should not include the "?" suffix in your declaration. Some examples are: "condition", "call", "literal", "kw", "token", "ref".

@example Handling any conditional statement (if, unless)

    handles meta_type(:condition)

@param [Symbol] type the meta-type to match. A meta-type can be

    any method name + "?" that {AstNode} responds to.

@return [void]

    # File lib/yard/handlers/ruby/base.rb, line 102
    def meta_type(type)
      TestNodeWrapper.new(type.to_s + "?")
    end

method_call(name = nil) click to toggle source

Matcher for handling any type of method call. Method calls can be expressed by many {AstNode} types depending on the syntax with which it is called, so YARD allows you to use this matcher to simplify matching a method call.

@example Match the "describe" method call

    handles method_call(:describe)

    # The following will be matched:
    # describe(...)
    # object.describe(...)
    # describe "argument" do ... end

@param [to_s] name matches the method call of this name @return [void]

    # File lib/yard/handlers/ruby/base.rb, line 83
    def method_call(name = nil)
      MethodCallWrapper.new(name ? name.to_s : nil)
    end

### Public Instance Methods

call_params() click to toggle source

@group Macro Handling

    # File lib/yard/handlers/ruby/base.rb, line 141
    def call_params
      return [] unless statement.respond_to?(:parameters)
      statement.parameters(false).compact.map do |param|
        if param.type == :list
          param.map {|n| n.jump(:ident, :kw, :tstring_content).source }
        else
          param.jump(:ident, :kw, :tstring_content).source
        end
      end.flatten
    end

caller_method() click to toggle source

    # File lib/yard/handlers/ruby/base.rb, line 152
    def caller_method
      if statement.call? || statement.def?
        statement.method_name(true).to_s
      elsif statement.type == :var_ref || statement.type == :vcall
        statement[0].jump(:ident, :kw).source
      else
        nil
      end
    end

parse_block(inner_node, opts = {}) click to toggle source

@group Parsing an Inner Block

    # File lib/yard/handlers/ruby/base.rb, line 132
    def parse_block(inner_node, opts = {})
      push_state(opts) do
        nodes = inner_node.type == :list ? inner_node.children : [inner_node]
        parser.process(nodes)
      end
    end

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