Sha256: eaf976b48d8126133ef4e85cce9f1e41bcb5a590e355bb38379f1ba4cae6a167
Contents?: true
Size: 859 Bytes
Versions: 21
Compression:
Stored size: 859 Bytes
Contents
class Code
class Node
class While < Node
WHILE_KEYWORD = "while"
UNTIL_KEYWORD = "until"
def initialize(parsed)
@operator = parsed.delete(:operator)
@statement = Node::Statement.new(parsed.delete(:statement))
@body = Node::Code.new(parsed.delete(:body))
super(parsed)
end
def evaluate(**args)
if @operator == WHILE_KEYWORD
last = ::Code::Object::Nothing.new
while @statement.evaluate(**args).truthy?
last = @body.evaluate(**args)
end
last
elsif @operator == UNTIL_KEYWORD
last = ::Code::Object::Nothing.new
last = @body.evaluate(**args) while @statement.evaluate(**args).falsy?
last
else
raise NotImplementedError.new(@operator)
end
end
end
end
end
Version data entries
21 entries across 21 versions & 3 rubygems