class Parser::Context


+ :lambda - in the lambda body (-> {})
+ :block - in the block body (tap {})
if you need to handle the first argument check ‘lex_state == expr_fname`
keep in mind that it’s set only after reducing the first argument,
+ :def_open_args - in the arglist of the method definition
+ :defs - in the singleton method body (def self.m; end)
+ :def - in the method body (def m; end)
+ :sclass - in the singleton class body (class << obj; end)
+ :module - in the module body (module M; end)
+ :class - in the class body (class A; end)
Supported states:
Context of parsing that is represented by a stack of scopes.

def in_dynamic_block? 

def in_dynamic_block?
  in_block || in_lambda
end

def initialize 

def initialize
  reset
end

def reset 

def reset
  @in_defined = false
  @in_kwarg = false
  @in_argdef = false
  @in_def = false
  @in_class = false
  @in_block = false
  @in_lambda = false
end