Class: SyntaxTree::YARV::Nop

Inherits:

Instruction

• Object
• Instruction
• SyntaxTree::YARV::Nop

Defined in:

lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

‘nop` is a no-operation instruction. It is used to pad the instruction sequence so there is a place for other instructions to jump to.

### Usage

~~~ruby raise rescue true ~~~

Instance Method Summary

• #==(other) ⇒ Object
• #call(vm) ⇒ Object
• #deconstruct_keys(_keys) ⇒ Object
• #disasm(fmt) ⇒ Object
• #side_effects? ⇒ Boolean
• #to_a(_iseq) ⇒ Object

Methods inherited from Instruction

#branch_targets, #canonical, #falls_through?, #leaves?, #length, #pops, #pushes

Instance Method Details

#==(other) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2536

def ==(other)
  other.is_a?(Nop)
end

#call(vm) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2540

def call(vm)
end

#deconstruct_keys(_keys) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2532

def deconstruct_keys(_keys)
  {}
end

#disasm(fmt) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2524

def disasm(fmt)
  fmt.instruction("nop")
end

#side_effects? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/syntax_tree/yarv/instructions.rb', line 2543

def side_effects?
  false
end

#to_a(_iseq) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2528

def to_a(_iseq)
  [:nop]
end