49 lines
1 KiB
Ruby
49 lines
1 KiB
Ruby
# encoding: utf-8
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module Mutant
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# Mixin for node helpers
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module NodeHelpers
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# Build node
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#
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# @param [Symbol] type
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#
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# @return [Parser::AST::Node]
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#
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# @api private
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#
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def s(type, *children)
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Parser::AST::Node.new(type, children)
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end
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module_function :s
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NAN =
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s(:send, s(:float, 0.0), :/, s(:args, s(:float, 0.0)))
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INFINITY =
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s(:send, s(:float, 1.0), :/, s(:args, s(:float, 0.0)))
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NEW_OBJECT =
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s(:send, s(:const, s(:cbase), :Object), :new)
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NEGATIVE_INFINITY =
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s(:send, s(:float, -1.0), :/, s(:args, s(:float, 0.0)))
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RAISE = s(:send, nil, :raise)
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N_TRUE = s(:true)
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N_FALSE = s(:false)
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N_NIL = s(:nil)
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N_EMPTY = s(:empty)
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# Build a negated boolean node
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#
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# @param [Parser::AST::Node] node
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#
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# @return [Parser::AST::Node]
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#
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# @api private
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#
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def n_not(node)
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s(:send, node, :!)
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end
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end # NodeHelpers
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end # Mutant
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