Class: Opal::AST::Matcher::Node
- Inherits:
-
Struct
- Object
- Struct
- Opal::AST::Matcher::Node
- Defined in:
- opal/lib/opal/ast/matcher.rb
Instance Attribute Summary collapse
-
#children ⇒ Object
Returns the value of attribute children.
-
#type ⇒ Object
Returns the value of attribute type.
Instance Method Summary collapse
Instance Attribute Details
#children ⇒ Object
Returns the value of attribute children
33 34 35 |
# File 'opal/lib/opal/ast/matcher.rb', line 33 def children @children end |
#type ⇒ Object
Returns the value of attribute type
33 34 35 |
# File 'opal/lib/opal/ast/matcher.rb', line 33 def type @type end |
Instance Method Details
#inspect ⇒ Object
67 68 69 70 71 72 73 |
# File 'opal/lib/opal/ast/matcher.rb', line 67 def inspect if type == :capture "{#{children.first.inspect}}" else "s(#{type.inspect}, #{children.inspect[1..-2]})" end end |
#match(ast, matcher) ⇒ Object
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 |
# File 'opal/lib/opal/ast/matcher.rb', line 34 def match(ast, matcher) return false if ast.nil? ast_parts = [ast.type] + ast.children self_parts = [type] + children return false if ast_parts.length != self_parts.length ast_parts.length.times.all? do |i| ast_elem = ast_parts[i] self_elem = self_parts[i] if self_elem.is_a?(Node) && self_elem.type == :capture capture = true self_elem = self_elem.children.first end res = case self_elem when Node self_elem.match(ast_elem, matcher) when Array self_elem.include?(ast_elem) when :* true else self_elem == ast_elem end matcher.captures << ast_elem if capture res end end |