Sha256: c4b06b423c0a162aee486306804b72eabc19915c2da73786052563293d6c7b06
Contents?: true
Size: 1.01 KB
Versions: 1884
Compression:
Stored size: 1.01 KB
Contents
# frozen_string_literal: true
module Parser
class StaticEnvironment
FORWARD_ARGS = :FORWARD_ARGS
ANONYMOUS_BLOCKARG = :ANONYMOUS_BLOCKARG
def initialize
reset
end
def reset
@variables = Set[]
@stack = []
end
def extend_static
@stack.push(@variables)
@variables = Set[]
self
end
def extend_dynamic
@stack.push(@variables)
@variables = @variables.dup
self
end
def unextend
@variables = @stack.pop
self
end
def declare(name)
@variables.add(name.to_sym)
self
end
def declared?(name)
@variables.include?(name.to_sym)
end
def declare_forward_args
declare(FORWARD_ARGS)
end
def declared_forward_args?
declared?(FORWARD_ARGS)
end
def declare_anonymous_blockarg
declare(ANONYMOUS_BLOCKARG)
end
def declared_anonymous_blockarg?
declared?(ANONYMOUS_BLOCKARG)
end
def empty?
@stack.empty?
end
end
end
Version data entries
1,884 entries across 1,880 versions & 15 rubygems