Class: SyntaxTree::YARV::Legacy::OptSetInlineCache

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

Overview

### Summary

‘opt_setinlinecache` sets an inline cache for a constant lookup. It pops the value it should set off the top of the stack. It uses this value to set the cache. It then pushes that value back onto the top of the stack.

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

Methods inherited from Instruction

#branch_targets, #canonical, #falls_through?, #leaves?, #side_effects?

Constructor Details

#initialize(cache) ⇒ OptSetInlineCache

Returns a new instance of OptSetInlineCache.



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# File 'lib/syntax_tree/yarv/legacy.rb', line 249

def initialize(cache)
  @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 247

def cache
  @cache
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 265

def ==(other)
  other.is_a?(OptSetInlineCache) && other.cache == cache
end

#call(vm) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 281

def call(vm)
end

#deconstruct_keys(_keys) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 261

def deconstruct_keys(_keys)
  { cache: cache }
end

#disasm(fmt) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 253

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

#length ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 269

def length
  2
end

#pops ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 273

def pops
  1
end

#pushes ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 277

def pushes
  1
end

#to_a(_iseq) ⇒ Object 



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# File 'lib/syntax_tree/yarv/legacy.rb', line 257

def to_a(_iseq)
  [:opt_setinlinecache, cache]
end