Class: Yadriggy::Parameters Abstract
- Includes:
- AstHelper
- Defined in:
- lib/yadriggy/ast.rb
Overview
Instance Attribute Summary collapse
-
#block_param ⇒ ASTnode|nil
readonly
The parameter preceded by an ampersand (
&
). -
#keywords ⇒ Array<Array<ASTnode>>
readonly
The keyword parameters.
-
#optionals ⇒ Array<Array<ASTnode>>
readonly
The list of parameters with default values.
-
#params ⇒ Array<ASTnode>
readonly
The parameter list.
-
#params_after_rest ⇒ Array<ASTnode>
readonly
The parameters following the parameter with asterisk (
*
). -
#rest_of_keywords ⇒ ASTnode|nil
readonly
The parameters preceded by two asterisks (
**
). -
#rest_of_params ⇒ ASTnode|nil
readonly
The parameter preceded by an asterisk (
*
).
Attributes inherited from ASTnode
Instance Method Summary collapse
-
#initialize(params) ⇒ Parameters
constructor
A new instance of Parameters.
- #initialize_params(params) ⇒ Object
Methods included from AstHelper
#has_tag?, #to_node, #to_nodes
Methods inherited from ASTnode
#add_child, #add_children, #const_value, #const_value_in_class, #get_context_class, #get_receiver_object, #is_proc?, #pretty_print, #root, #source_location, #source_location_string, #value, #value_in_class
Constructor Details
#initialize(params) ⇒ Parameters
Returns a new instance of Parameters.
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# File 'lib/yadriggy/ast.rb', line 1297 def initialize(params) initialize_params(params) end |
Instance Attribute Details
#block_param ⇒ ASTnode|nil (readonly)
Returns the parameter preceded by an ampersand (&
).
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# File 'lib/yadriggy/ast.rb', line 1294 def block_param @block_param end |
#keywords ⇒ Array<Array<ASTnode>> (readonly)
Returns the keyword parameters.
Each element is [keyword, value]
.
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# File 'lib/yadriggy/ast.rb', line 1290 def keywords @keywords end |
#optionals ⇒ Array<Array<ASTnode>> (readonly)
Returns the list of parameters with default values.
Each element is [name, value]
.
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# File 'lib/yadriggy/ast.rb', line 1282 def optionals @optionals end |
#params ⇒ Array<ASTnode> (readonly)
Returns the parameter list.
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# File 'lib/yadriggy/ast.rb', line 1279 def params @params end |
#params_after_rest ⇒ Array<ASTnode> (readonly)
Returns the parameters following the parameter
with asterisk (*
).
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# File 'lib/yadriggy/ast.rb', line 1287 def params_after_rest @params_after_rest end |
#rest_of_keywords ⇒ ASTnode|nil (readonly)
Returns the parameters preceded by two asterisks (**
).
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# File 'lib/yadriggy/ast.rb', line 1292 def rest_of_keywords @rest_of_keywords end |
#rest_of_params ⇒ ASTnode|nil (readonly)
Returns the parameter preceded by an asterisk (*
).
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# File 'lib/yadriggy/ast.rb', line 1284 def rest_of_params @rest_of_params end |
Instance Method Details
#initialize_params(params) ⇒ Object
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# File 'lib/yadriggy/ast.rb', line 1301 def initialize_params(params) if params.nil? @params = [] @optionals = [] @rest_of_params = nil @params_after_rest = [] @keywords = [] @rest_of_keywords = nil @block_param = nil else if params[1].nil? @params = [] else @params = to_nodes(params[1]) add_children(@params) end if params[2].nil? @optionals = [] else # [[name, value], ...] @optionals = params[2].map {|p| to_nodes(p) } @optionals.map {|p| add_children(p) } end if params[3].nil? @rest_of_params = nil else @rest_of_params = to_node(has_tag?(params[3], :rest_param)[1]) add_child(@rest_of_params) end if params[4].nil? @params_after_rest = [] else @params_after_rest = to_nodes(params[4]) add_children(@params_after_rest) end if params[5].nil? @keywords = [] else # [[keyword, value], ...] value may be nil @keywords = params[5].map do |p| default_value = if p[1] then to_node(p[1]) else nil end [ to_node(p[0]), default_value ] end @keywords.map {|p| add_children(p) } end if params[6].nil? @rest_of_keywords = nil else rkeys = if params[6][0] == :@ident params[6] # Ruby 2.4 or earlier else has_tag?(params[6], :kwrest_param)[1] end @rest_of_keywords = to_node(has_tag?(rkeys, :@ident)) end if params[7].nil? @block_param = nil else @block_param = to_node(has_tag?(params[7], :blockarg)[1]) add_child(@block_param) end end end |