Class: SyntaxTree::YARV::InvokeBlock

Inherits:

Object

• Object
• SyntaxTree::YARV::InvokeBlock

Defined in:

lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

invokeblock invokes the block given to the current method. It pops the arguments for the block off the stack and pushes the result of running the block onto the stack.

### Usage

~~~ruby def foo

yield

end ~~~

Instance Attribute Summary

• #calldata ⇒ Object readonly

  Returns the value of attribute calldata.

Instance Method Summary

• #==(other) ⇒ Object
• #call(vm) ⇒ Object
• #canonical ⇒ Object
• #deconstruct_keys(_keys) ⇒ Object
• #disasm(fmt) ⇒ Object
• #initialize(calldata) ⇒ InvokeBlock constructor

  A new instance of InvokeBlock.

• #length ⇒ Object
• #pops ⇒ Object
• #pushes ⇒ Object
• #to_a(_iseq) ⇒ Object

Constructor Details

#initialize(calldata) ⇒ InvokeBlock

# File 'lib/syntax_tree/yarv/instructions.rb', line 2221

def initialize(calldata)
  @calldata = calldata
end

Instance Attribute Details

#calldata ⇒ Object (readonly)

Returns the value of attribute calldata.

# File 'lib/syntax_tree/yarv/instructions.rb', line 2219

def calldata
  @calldata
end

Instance Method Details

#==(other) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2237

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

#call(vm) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2257

def call(vm)
  vm.push(vm.frame_yield.block.call(*vm.pop(calldata.argc)))
end

#canonical ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2253

def canonical
  self
end

#deconstruct_keys(_keys) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2233

def deconstruct_keys(_keys)
  { calldata: calldata }
end

#disasm(fmt) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2225

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

#length ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2241

def length
  2
end

#pops ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2245

def pops
  calldata.argc
end

#pushes ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2249

def pushes
  1
end

#to_a(_iseq) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2229

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