Class: Fmt::Arguments

Inherits:
Model
  • Object
show all
Defined in:
lib/fmt/models/arguments.rb

Overview

Represents arguments for a method call

Arguments are comprised of:

  1. args: Array

  2. kwargs: Hash[Symbol, Object]

Instance Attribute Summary collapse

Attributes inherited from Model

#ast, #source, #urtext

AST Processors collapse

Composite Data Types (Arrays, Hashes, Sets) collapse

Instance Method Summary collapse

Methods inherited from Model

#inspect, #self?

Methods included from Matchable

#deconstruct, #deconstruct_keys

Constructor Details

#initialize(ast) ⇒ Arguments

Constructor



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# File 'lib/fmt/models/arguments.rb', line 15

def initialize(ast)
  @args = []
  @kwargs = {}
  super
end

Instance Attribute Details

#args ⇒ Object (readonly)

: Array – positional arguments



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# File 'lib/fmt/models/arguments.rb', line 21

def args
  @args
end

#kwargs ⇒ Object (readonly)

: Hash[Symbol, Object] – keyword arguments



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# File 'lib/fmt/models/arguments.rb', line 22

def kwargs
  @kwargs
end

Instance Method Details

#on_arguments(node) ⇒ Object

Processes an arguments AST node



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# File 'lib/fmt/models/arguments.rb', line 40

def on_arguments(node)
  process_all node.children
end

#on_float(node) ⇒ Object

Processes a float AST node



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# File 'lib/fmt/models/arguments.rb', line 102

def on_float(node)
  assign node.children.first.to_f
end

#on_ident(node) ⇒ Object

Processes an identifier AST Node



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# File 'lib/fmt/models/arguments.rb', line 86

def on_ident(node)
  assign node.children.first.to_sym if @next_ident_is_symbol
ensure
  @next_ident_is_symbol = false
end

#on_imaginary(node) ⇒ Object

Processes an imaginary (complex) AST node



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# File 'lib/fmt/models/arguments.rb', line 116

def on_imaginary(node)
  assign Complex(0, node.children.first.to_f)
end

#on_int(node) ⇒ Object

Processes an integer AST node



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# File 'lib/fmt/models/arguments.rb', line 95

def on_int(node)
  assign node.children.first.to_i
end

#on_kw(node) ⇒ Object

Processes a keyword AST node



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# File 'lib/fmt/models/arguments.rb', line 54

def on_kw(node)
  case node.children.first
  in "nil" then assign(nil)
  in "true" then assign(true)
  in "false" then assign(false)
  end
end

#on_label(node) ⇒ Object

Process a label (hash key) AST node



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# File 'lib/fmt/models/arguments.rb', line 141

def on_label(node)
  label = node.children.first
  label = label.chop.to_sym if label.end_with?(":")
  assign nil, label: label # assign placeholder
end

#on_lbrace(node) ⇒ Object

Processes a left brace AST node



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# File 'lib/fmt/models/arguments.rb', line 134

def on_lbrace(node)
  assign({})
end

#on_lbracket(node) ⇒ Object

Processes a left bracket AST node



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# File 'lib/fmt/models/arguments.rb', line 127

def on_lbracket(node)
  assign([])
end

#on_rational(node) ⇒ Object

Processes a rational AST node



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# File 'lib/fmt/models/arguments.rb', line 109

def on_rational(node)
  assign Rational(node.children.first)
end

#on_symbeg(node) ⇒ Object

Processes a symbol start AST Node



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# File 'lib/fmt/models/arguments.rb', line 79

def on_symbeg(node)
  @next_ident_is_symbol = true
end

#on_symbol(node) ⇒ Object

Processes a symbol AST Node



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# File 'lib/fmt/models/arguments.rb', line 72

def on_symbol(node)
  assign node.children.first.to_sym
end

#on_tokens(node) ⇒ Object

Processes a tokens AST node



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# File 'lib/fmt/models/arguments.rb', line 47

def on_tokens(node)
  process_all node.children
end

#on_tstring_content(node) ⇒ Object

Processes a string AST node



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# File 'lib/fmt/models/arguments.rb', line 65

def on_tstring_content(node)
  assign node.children.first
end

#to_h ⇒ Object

Hash representation of the model (required for pattern matching)



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# File 'lib/fmt/models/arguments.rb', line 26

def to_h
  super.merge(
    args: args,
    kwargs: kwargs
  )
end