Class: SyntaxTree::YARV::Legacy::OptGetInlineCache

Inherits:
Object
  • Object
show all
Defined in:
lib/syntax_tree/yarv/legacy.rb

Overview

### Summary

opt_getinlinecache is a wrapper around a series of putobject and getconstant instructions that allows skipping past them if the inline cache is currently set. It pushes the value of the cache onto the stack if it is set, otherwise it pushes nil.

This instruction is no longer used since in Ruby 3.2 it was replaced by the consolidated opt_getconstant_path instruction.

### Usage

~~~ruby Constant ~~~

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(label, cache) ⇒ OptGetInlineCache 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 85

def initialize(label, cache)
  @label = label
  @cache = cache
end

Instance Attribute Details

#cache ⇒ Object (readonly)

Returns the value of attribute cache.



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# File 'lib/syntax_tree/yarv/legacy.rb', line 83

def cache
  @cache
end

#label ⇒ Object (readonly)

Returns the value of attribute label.



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# File 'lib/syntax_tree/yarv/legacy.rb', line 83

def label
  @label
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 105

def ==(other)
  other.is_a?(OptGetInlineCache) && other.label == label &&
    other.cache == cache
end

#call(vm) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 126

def call(vm)
  vm.push(nil)
end

#canonical ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 122

def canonical
  self
end

#deconstruct_keys(_keys) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 101

def deconstruct_keys(_keys)
  { label: label, cache: cache }
end

#disasm(fmt) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 90

def disasm(fmt)
  fmt.instruction(
    "opt_getinlinecache",
    [fmt.label(label), fmt.inline_storage(cache)]
  )
end

#length ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 110

def length
  3
end

#pops ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 114

def pops
  0
end

#pushes ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 118

def pushes
  1
end

#to_a(_iseq) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 97

def to_a(_iseq)
  [:opt_getinlinecache, label.name, cache]
end