[ruby/yarp] Move node ext and parse result to their own files

916828767c

lib/yarp/node_ext.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+# Here we are reopening the YARP module to provide methods on nodes that aren't
+# templated and are meant as convenience methods.
+module YARP
+  class FloatNode < Node
+    # Returns the value of the node as a Ruby Float.
+    def value
+      Float(slice)
+    end
+  end
+
+  class ImaginaryNode < Node
+    # Returns the value of the node as a Ruby Complex.
+    def value
+      Complex(0, numeric.value)
+    end
+  end
+
+  class IntegerNode < Node
+    # Returns the value of the node as a Ruby Integer.
+    def value
+      Integer(slice)
+    end
+  end
+
+  class InterpolatedRegularExpressionNode < Node
+    # Returns a numeric value that represents the flags that were used to create
+    # the regular expression.
+    def options
+      o = flags & (RegularExpressionFlags::IGNORE_CASE | RegularExpressionFlags::EXTENDED | RegularExpressionFlags::MULTI_LINE)
+      o |= Regexp::FIXEDENCODING if flags.anybits?(RegularExpressionFlags::EUC_JP | RegularExpressionFlags::WINDOWS_31J | RegularExpressionFlags::UTF_8)
+      o |= Regexp::NOENCODING if flags.anybits?(RegularExpressionFlags::ASCII_8BIT)
+      o
+    end
+  end
+
+  class RationalNode < Node
+    # Returns the value of the node as a Ruby Rational.
+    def value
+      Rational(slice.chomp("r"))
+    end
+  end
+
+  class RegularExpressionNode < Node
+    # Returns a numeric value that represents the flags that were used to create
+    # the regular expression.
+    def options
+      o = flags & (RegularExpressionFlags::IGNORE_CASE | RegularExpressionFlags::EXTENDED | RegularExpressionFlags::MULTI_LINE)
+      o |= Regexp::FIXEDENCODING if flags.anybits?(RegularExpressionFlags::EUC_JP | RegularExpressionFlags::WINDOWS_31J | RegularExpressionFlags::UTF_8)
+      o |= Regexp::NOENCODING if flags.anybits?(RegularExpressionFlags::ASCII_8BIT)
+      o
+    end
+  end
+end