Class: Laser::Analysis::ArgumentExpansion

Inherits:

Object

• Object
• Laser::Analysis::ArgumentExpansion

show all

Defined in:

lib/laser/analysis/argument_expansion.rb

Overview

Instance Attribute Summary (collapse)

• - (Object) node readonly

  Returns the value of attribute node.

Instance Method Summary (collapse)

• - (Object) arity

  Returns the arity of the argument block being passed, as a range of possible values.

• - (Object) block_arg

  Returns the block argument (&blk) for the argument expansion.

• - (Object) constant_values

  Returns an array of constant values that are the arguments being passed.

• - (Boolean) empty?

  Are there no arguments being passed?.

• - (Boolean) has_block?

  Returns whether the node has a block argument.

• - (ArgumentExpansion) initialize(node) constructor

  args_add_block node.

• - (Boolean) is_constant?

  Returns whether all arguments are constant.

9
10
11
12

# File 'lib/laser/analysis/argument_expansion.rb', line 9

def initialize(node)
  node = node[1] if !node.nil? && node.type == :arg_paren
  @node = node
end

6
7
8

# File 'lib/laser/analysis/argument_expansion.rb', line 6

def node
  @node
end

26
27
28
29

# File 'lib/laser/analysis/argument_expansion.rb', line 26

def arity
  return Arity::EMPTY if node.nil?
  Arity.new(arity_for_node(node))
end

51
52
53
54

# File 'lib/laser/analysis/argument_expansion.rb', line 51

def block_arg
  return false if node.nil?
  block_arg_for_node node
end

45
46
47
48

# File 'lib/laser/analysis/argument_expansion.rb', line 45

def constant_values
  return [] if node.nil?
  node_constant_values(node)
end

32
33
34

# File 'lib/laser/analysis/argument_expansion.rb', line 32

def empty?
  arity == (0..0)
end

16
17
18
19
20
21
22

# File 'lib/laser/analysis/argument_expansion.rb', line 16

def has_block?
  if node.nil?
    false
  elsif node.type == :args_add_block
    node[2]
  end
end

37
38
39
40

# File 'lib/laser/analysis/argument_expansion.rb', line 37

def is_constant?
  return true if node.nil?
  node_is_constant?(node)
end