Sha256: 0df12c6e0534079fa40c5b585c2d0307d1265f76fa9f43a80363cd2368f2dba6
Contents?: true
Size: 1.23 KB
Versions: 21
Compression:
Stored size: 1.23 KB
Contents
class Code
class Node
class IfModifier < Node
IF_KEYWORD = "if"
UNLESS_KEYWORD = "unless"
WHILE_KEYWORD = "while"
UNTIL_KEYWORD = "until"
def initialize(parsed)
@operator = parsed.delete(:operator)
@left = Node::Statement.new(parsed.delete(:left))
@right = Node::Statement.new(parsed.delete(:right))
super(parsed)
end
def evaluate(**args)
if @operator == IF_KEYWORD
if @right.evaluate(**args).truthy?
@left.evaluate(**args)
else
::Code::Object::Nothing.new
end
elsif @operator == UNLESS_KEYWORD
if @right.evaluate(**args).falsy?
@left.evaluate(**args)
else
::Code::Object::Nothing.new
end
elsif @operator == WHILE_KEYWORD
last = ::Code::Object::Nothing.new
last = @left.evaluate(**args) while @right.evaluate(**args).truthy?
last
elsif @operator == UNTIL_KEYWORD
last = ::Code::Object::Nothing.new
last = @left.evaluate(**args) while @right.evaluate(**args).falsy?
last
else
raise NotImplementedError.new(@operator)
end
end
end
end
end
Version data entries
21 entries across 21 versions & 3 rubygems