Sha256: 02a9cd5056207bcc52e93998b64b8748e16160c8543cf59be89eac220b47cb38
Contents?: true
Size: 1.15 KB
Versions: 7
Compression:
Stored size: 1.15 KB
Contents
module Lrama
class Grammar
class Code
class PrinterCode < Code
def initialize(type:, token_code:, tag:)
super(type: type, token_code: token_code)
@tag = tag
end
private
# * ($$) *yyvaluep
# * (@$) *yylocationp
# * ($:$) error
# * ($1) error
# * (@1) error
# * ($:1) error
def reference_to_c(ref)
case
when ref.type == :dollar && ref.name == "$" # $$
member = @tag.member
"((*yyvaluep).#{member})"
when ref.type == :at && ref.name == "$" # @$
"(*yylocationp)"
when ref.type == :index && ref.name == "$" # $:$
raise "$:#{ref.value} can not be used in #{type}."
when ref.type == :dollar # $n
raise "$#{ref.value} can not be used in #{type}."
when ref.type == :at # @n
raise "@#{ref.value} can not be used in #{type}."
when ref.type == :index # $:n
raise "$:#{ref.value} can not be used in #{type}."
else
raise "Unexpected. #{self}, #{ref}"
end
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems