optimize unary minus for constants

2026-03-23 10:14:06 +03:00
parent daa2e4e747
commit 5cb52f7bb7
1 changed files with 5 additions and 1 deletions
@@ -183,9 +183,13 @@ module RubyAlgebra
      when :positive
        out_stack.push a
      when :negative
+        if a.type == :constant
+          out_stack.push Constant.new(-a.value)
+        else
          out_stack.push Multiplication.new(Constant.new(-1), a)
        end
      end
+    end

    def self._parse_op_prio(op_token)
      case op_token.op