Class: Peruby::Op::Conditional

Inherits:
Base
  • Object
show all
Defined in:
lib/peruby/op/control.rb

Overview

Conditional branch operation.

Instance Method Summary collapse

Methods inherited from Base

#argument_cells, #local_slot, #lvalue, #run_subroutine, #warning_directive?

Constructor Details

#initialize(condition, then_branch, else_branch) ⇒ Conditional

Returns a new instance of Conditional.



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# File 'lib/peruby/op/control.rb', line 106

def initialize(condition, then_branch, else_branch)
  @condition = condition
  @then_branch = then_branch
  @else_branch = else_branch
end

Instance Method Details

#run(env, context) ⇒ Object 



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# File 'lib/peruby/op/control.rb', line 112

def run(env, context)
  branch = Conv.truthy?(@condition.run(env, :scalar)) ? @then_branch : @else_branch
  branch&.run(env, context)
end

#to_callable ⇒ Object 



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# File 'lib/peruby/op/control.rb', line 117

def to_callable
  condition = @condition.to_callable
  scalar_condition = @condition.scalar_callable if @condition.respond_to?(:scalar_callable)
  then_branch = @then_branch.to_callable
  else_branch = @else_branch&.to_callable
  lambda do |env, context|
    value = scalar_condition ? scalar_condition.call(env) : condition.call(env, :scalar)
    branch = Conv.truthy?(value) ? then_branch : else_branch
    branch&.call(env, context)
  end
end