Class: SyntaxTree::YARV::OptRegExpMatch2
Overview
### Summary
‘opt_regexpmatch2` is a specialization of the `opt_send_without_block` instruction that occurs when the `=~` operator is used. It pops both the receiver and the argument off the stack and pushes on the result.
### Usage
~~~ruby /a/ =~ “a” ~~~
Instance Attribute Summary collapse
Instance Method Summary
collapse
Methods inherited from Instruction
#branch_targets, #falls_through?, #leaves?, #side_effects?
Constructor Details
Returns a new instance of OptRegExpMatch2.
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4164
def initialize(calldata)
@calldata = calldata
end
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Instance Attribute Details
#calldata ⇒ Object
Returns the value of attribute calldata.
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4162
def calldata
@calldata
end
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Instance Method Details
#==(other) ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4180
def ==(other)
other.is_a?(OptRegExpMatch2) && other.calldata == calldata
end
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#call(vm) ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4200
def call(vm)
canonical.call(vm)
end
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#canonical ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4196
def canonical
Send.new(calldata, nil)
end
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#deconstruct_keys(_keys) ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4176
def deconstruct_keys(_keys)
{ calldata: calldata }
end
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#disasm(fmt) ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4168
def disasm(fmt)
fmt.instruction("opt_regexpmatch2", [fmt.calldata(calldata)])
end
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#length ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4184
def length
2
end
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#pops ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4188
def pops
2
end
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#pushes ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4192
def pushes
1
end
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#to_a(_iseq) ⇒ Object
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# File 'lib/syntax_tree/yarv/instructions.rb', line 4172
def to_a(_iseq)
[:opt_regexpmatch2, calldata.to_h]
end
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