Class: Idl::BinaryExpressionRightSyntaxNode

Inherits:
Treetop::Runtime::SyntaxNode show all
Defined in:
lib/idl/ast.rb

Instance Method Summary collapse

Instance Method Details

#to_ast ⇒ Object

fix up left recursion i.e., xlen() - 1 - i => (xlen() - 1) - i



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# File 'lib/idl/ast.rb', line 2491

def to_ast
  first =
    BinaryExpressionAst.new(
      input, (interval.begin...r.elements[0].r.interval.end),
      l.to_ast, r.elements[0].op.text_value, r.elements[0].r.to_ast
    )

  if r.elements.size == 1
    first
  else
    r.elements[1..].inject(first) do |lhs, el|
      BinaryExpressionAst.new(input, (lhs.interval.begin...el.r.interval.end),
                              lhs, el.op.text_value, el.r.to_ast)
    end
  end
end

#type_check(_symtab) ⇒ Object 



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# File 'lib/idl/ast.rb', line 2508

def type_check(_symtab)
  raise "you must have forgotten the to_ast pass"
end