Class: SyntaxTree::YARV::Send
- Inherits:
-
Instruction
- Object
- Instruction
- SyntaxTree::YARV::Send
- Defined in:
- lib/syntax_tree/yarv/instructions.rb
Overview
### Summary
‘send` invokes a method with an optional block. It pops its receiver and the arguments for the method off the stack and pushes the return value onto the stack. It has two arguments: the calldata for the call site and the optional block instruction sequence.
### Usage
~~~ruby “hello”.tap { |i| p i } ~~~
Instance Attribute Summary collapse
-
#block_iseq ⇒ Object
readonly
Returns the value of attribute block_iseq.
-
#calldata ⇒ Object
readonly
Returns the value of attribute calldata.
Instance Method Summary collapse
- #==(other) ⇒ Object
- #call(vm) ⇒ Object
- #deconstruct_keys(_keys) ⇒ Object
- #disasm(fmt) ⇒ Object
-
#initialize(calldata, block_iseq) ⇒ Send
constructor
A new instance of Send.
- #length ⇒ Object
- #pops ⇒ Object
- #pushes ⇒ Object
- #to_a(_iseq) ⇒ Object
Methods inherited from Instruction
#branch_targets, #canonical, #falls_through?, #leaves?, #side_effects?
Constructor Details
#initialize(calldata, block_iseq) ⇒ Send
Returns a new instance of Send.
4812 4813 4814 4815 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4812 def initialize(calldata, block_iseq) @calldata = calldata @block_iseq = block_iseq end |
Instance Attribute Details
#block_iseq ⇒ Object (readonly)
Returns the value of attribute block_iseq.
4810 4811 4812 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4810 def block_iseq @block_iseq end |
#calldata ⇒ Object (readonly)
Returns the value of attribute calldata.
4810 4811 4812 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4810 def calldata @calldata end |
Instance Method Details
#==(other) ⇒ Object
4833 4834 4835 4836 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4833 def ==(other) other.is_a?(Send) && other.calldata == calldata && other.block_iseq == block_iseq end |
#call(vm) ⇒ Object
4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4851 def call(vm) block = if (iseq = block_iseq) frame = vm.frame ->(*args, **kwargs, &blk) do vm.run_block_frame(iseq, frame, *args, **kwargs, &blk) end elsif calldata.flag?(CallData::CALL_ARGS_BLOCKARG) vm.pop end keywords = if calldata.kw_arg calldata.kw_arg.zip(vm.pop(calldata.kw_arg.length)).to_h else {} end arguments = vm.pop(calldata.argc) receiver = vm.pop vm.push( receiver.__send__(calldata.method, *arguments, **keywords, &block) ) end |
#deconstruct_keys(_keys) ⇒ Object
4829 4830 4831 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4829 def deconstruct_keys(_keys) { calldata: calldata, block_iseq: block_iseq } end |
#disasm(fmt) ⇒ Object
4817 4818 4819 4820 4821 4822 4823 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4817 def disasm(fmt) fmt.enqueue(block_iseq) if block_iseq fmt.instruction( "send", [fmt.calldata(calldata), block_iseq&.name || "nil"] ) end |
#length ⇒ Object
4838 4839 4840 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4838 def length 3 end |
#pops ⇒ Object
4842 4843 4844 4845 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4842 def pops argb = (calldata.flag?(CallData::CALL_ARGS_BLOCKARG) ? 1 : 0) argb + calldata.argc + 1 end |
#pushes ⇒ Object
4847 4848 4849 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4847 def pushes 1 end |
#to_a(_iseq) ⇒ Object
4825 4826 4827 |
# File 'lib/syntax_tree/yarv/instructions.rb', line 4825 def to_a(_iseq) [:send, calldata.to_h, block_iseq&.to_a] end |