class SyntaxTree::YARV::OptLength

### Summary

‘opt_length` is a specialization of `opt_send_without_block`, when the `length` method is called. There are fast paths when the receiver is either a string, hash, or array. It pops the receiver off the stack and pushes on the result of the method call.

### Usage

~~~ruby “”.length ~~~

Attributes

calldata [R]

Public Class Methods

new (calldata)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3484
def initialize(calldata)
  @calldata = calldata
end

Public Instance Methods

== (other)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3500
def ==(other)
  other.is_a?(OptLength) && other.calldata == calldata
end

call (vm)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3520
def call(vm)
  canonical.call(vm)
end

canonical ()

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3516
def canonical
  Send.new(calldata, nil)
end

deconstruct_keys (_keys)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3496
def deconstruct_keys(_keys)
  { calldata: calldata }
end

disasm (fmt)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3488
def disasm(fmt)
  fmt.instruction("opt_length", [fmt.calldata(calldata)])
end

length ()

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3504
def length
  2
end

pops ()

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3508
def pops
  1
end

pushes ()

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3512
def pushes
  1
end

to_a (_iseq)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 3492
def to_a(_iseq)
  [:opt_length, calldata.to_h]
end