Class: SyntaxTree::YARV::ObjToString

Inherits:
Instruction show all
Defined in:
lib/syntax_tree/yarv/instructions.rb

Overview

Summary

objtostring pops a value from the stack, calls to_s on that value and then pushes the result back to the stack.

It has various fast paths for classes like String, Symbol, Module, Class, etc. For everything else it calls to_s.

Usage

"#{5}"

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Instruction

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

Constructor Details

#initialize(calldata) ⇒ ObjToString

Returns a new instance of ObjToString.



2565
2566
2567
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2565

def initialize(calldata)
  @calldata = calldata
end

Instance Attribute Details

#calldata ⇒ Object (readonly)

Returns the value of attribute calldata.



2563
2564
2565
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2563

def calldata
  @calldata
end

Instance Method Details

#==(other) ⇒ Object 



2581
2582
2583
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2581

def ==(other)
  other.is_a?(ObjToString) && other.calldata == calldata
end

#call(vm) ⇒ Object 



2597
2598
2599
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2597

def call(vm)
  vm.push(vm.pop.to_s)
end

#deconstruct_keys(_keys) ⇒ Object 



2577
2578
2579
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2577

def deconstruct_keys(_keys)
  { calldata: calldata }
end

#disasm(fmt) ⇒ Object 



2569
2570
2571
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2569

def disasm(fmt)
  fmt.instruction("objtostring", [fmt.calldata(calldata)])
end

#length ⇒ Object 



2585
2586
2587
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2585

def length
  2
end

#pops ⇒ Object 



2589
2590
2591
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2589

def pops
  1
end

#pushes ⇒ Object 



2593
2594
2595
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2593

def pushes
  1
end

#to_a(_iseq) ⇒ Object 



2573
2574
2575
 
# File 'lib/syntax_tree/yarv/instructions.rb', line 2573

def to_a(_iseq)
  [:objtostring, calldata.to_h]
end