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Feature #13686 ยป add-state-to-ripper-for-trunk.patch

aycabta (aycabta .), 06/27/2017 12:34 PM

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ext/ripper/lib/ripper/filter.rb (working copy)
@__lexer = Lexer.new(src, filename, lineno)
@__line = nil
@__col = nil
@__state = nil
end
# The file name of the input.
......
@__col
end
# The scanner's state of the current token.
# This value is the bitwise OR of zero or more of the +Ripper::EXPR_*+ constants.
def state
@__state
end
# Starts the parser.
# +init+ is a data accumulator and is passed to the next event handler (as
# of Enumerable#inject).
def parse(init = nil)
data = init
@__lexer.lex.each do |pos, event, tok|
@__lexer.lex.each do |pos, event, tok, state|
@__line, @__col = *pos
@__state = state
data = if respond_to?(event, true)
then __send__(event, tok, data)
else on_default(event, tok, data)
ext/ripper/lib/ripper/lexer.rb (working copy)
end
# Tokenizes the Ruby program and returns an array of an array,
# which is formatted like <code>[[lineno, column], type, token]</code>.
# which is formatted like
# <code>[[lineno, column], type, token, state]</code>.
#
# require 'ripper'
# require 'pp'
#
# pp Ripper.lex("def m(a) nil end")
# #=> [[[1, 0], :on_kw, "def"],
# [[1, 3], :on_sp, " " ],
# [[1, 4], :on_ident, "m" ],
# [[1, 5], :on_lparen, "(" ],
# [[1, 6], :on_ident, "a" ],
# [[1, 7], :on_rparen, ")" ],
# [[1, 8], :on_sp, " " ],
# [[1, 9], :on_kw, "nil"],
# [[1, 12], :on_sp, " " ],
# [[1, 13], :on_kw, "end"]]
# #=> [[[1, 0], :on_kw, "def", Ripper::EXPR_FNAME ],
# [[1, 3], :on_sp, " ", Ripper::EXPR_FNAME ],
# [[1, 4], :on_ident, "m", Ripper::EXPR_ENDFN ],
# [[1, 5], :on_lparen, "(", Ripper::EXPR_LABEL | Ripper::EXPR_BEG],
# [[1, 6], :on_ident, "a", Ripper::EXPR_ARG ],
# [[1, 7], :on_rparen, ")", Ripper::EXPR_ENDFN ],
# [[1, 8], :on_sp, " ", Ripper::EXPR_BEG ],
# [[1, 9], :on_kw, "nil", Ripper::EXPR_END ],
# [[1, 12], :on_sp, " ", Ripper::EXPR_END ],
# [[1, 13], :on_kw, "end", Ripper::EXPR_END ]]
#
def Ripper.lex(src, filename = '-', lineno = 1)
Lexer.new(src, filename, lineno).lex
end
class Lexer < ::Ripper #:nodoc: internal use only
Elem = Struct.new(:pos, :event, :tok)
Elem = Struct.new(:pos, :event, :tok, :state)
def tokenize
parse().sort_by(&:pos).map(&:tok)
......
if Elem === e and e.event == :on_tstring_content
tok = e.tok.dup if w > 0 and /\A\s/ =~ e.tok
if (n = dedent_string(e.tok, w)) > 0
ignored_sp << [i, Elem.new(e.pos.dup, :on_ignored_sp, tok[0, n])]
ignored_sp << [i, Elem.new(e.pos.dup, :on_ignored_sp, tok[0, n], e.state)]
e.pos[1] += n
end
end
......
buf = []
@buf << buf
@buf = buf
@buf.push Elem.new([lineno(), column()], __callee__, tok)
@buf.push Elem.new([lineno(), column()], __callee__, tok, state())
end
def on_heredoc_end(tok)
@buf.push Elem.new([lineno(), column()], __callee__, tok)
@buf.push Elem.new([lineno(), column()], __callee__, tok, state())
@buf = @stack.pop
end
def _push_token(tok)
@buf.push Elem.new([lineno(), column()], __callee__, tok)
@buf.push Elem.new([lineno(), column()], __callee__, tok, state())
end
(SCANNER_EVENTS.map {|event|:"on_#{event}"} - private_instance_methods(false)).each do |event|
parse.y (working copy)
const char *token;
int linenum;
int column;
enum lex_state_e state;
int nonspc;
struct token_info *next;
} token_info;
......
ptinfo->token = token;
ptinfo->linenum = ruby_sourceline;
ptinfo->column = token_info_get_column(parser, t);
ptinfo->state = lex_state;
ptinfo->nonspc = token_info_has_nonspaces(parser, t);
ptinfo->next = parser->token_info;
......
return INT2NUM(ruby_sourceline);
}
/*
* call-seq:
* ripper#state -> Integer
*
* Return scanner state of current token.
*/
static VALUE
ripper_state(VALUE self)
{
struct parser_params *parser;
TypedData_Get_Struct(self, struct parser_params, &parser_data_type, parser);
if (!ripper_initialized_p(parser)) {
rb_raise(rb_eArgError, "method called for uninitialized object");
}
if (NIL_P(parser->parsing_thread)) return Qnil;
return INT2NUM(lex_state);
}
#ifdef RIPPER_DEBUG
/* :nodoc: */
static VALUE
......
rb_define_method(Ripper, "column", ripper_column, 0);
rb_define_method(Ripper, "filename", ripper_filename, 0);
rb_define_method(Ripper, "lineno", ripper_lineno, 0);
rb_define_method(Ripper, "state", ripper_state, 0);
rb_define_method(Ripper, "end_seen?", rb_parser_end_seen_p, 0);
rb_define_method(Ripper, "encoding", rb_parser_encoding, 0);
rb_define_method(Ripper, "yydebug", rb_parser_get_yydebug, 0);
......
rb_define_singleton_method(Ripper, "dedent_string", parser_dedent_string, 2);
rb_define_private_method(Ripper, "dedent_string", parser_dedent_string, 2);
/* ignore newline, +/- is a sign. */
rb_define_const(Ripper, "EXPR_BEG", INT2NUM(EXPR_BEG));
/* newline significant, +/- is an operator. */
rb_define_const(Ripper, "EXPR_END", INT2NUM(EXPR_END));
/* ditto, and unbound braces. */
rb_define_const(Ripper, "EXPR_ENDARG", INT2NUM(EXPR_ENDARG));
/* ditto, and unbound braces. */
rb_define_const(Ripper, "EXPR_ENDFN", INT2NUM(EXPR_ENDFN));
/* newline significant, +/- is an operator. */
rb_define_const(Ripper, "EXPR_ARG", INT2NUM(EXPR_ARG));
/* newline significant, +/- is an operator. */
rb_define_const(Ripper, "EXPR_CMDARG", INT2NUM(EXPR_CMDARG));
/* newline significant, +/- is an operator. */
rb_define_const(Ripper, "EXPR_MID", INT2NUM(EXPR_MID));
/* ignore newline, no reserved words. */
rb_define_const(Ripper, "EXPR_FNAME", INT2NUM(EXPR_FNAME));
/* right after `.' or `::', no reserved words. */
rb_define_const(Ripper, "EXPR_DOT", INT2NUM(EXPR_DOT));
/* immediate after `class', no here document. */
rb_define_const(Ripper, "EXPR_CLASS", INT2NUM(EXPR_CLASS));
/* flag bit, label is allowed. */
rb_define_const(Ripper, "EXPR_LABEL", INT2NUM(EXPR_LABEL));
/* flag bit, just after a label. */
rb_define_const(Ripper, "EXPR_LABELED", INT2NUM(EXPR_LABELED));
/* symbol literal as FNAME. */
rb_define_const(Ripper, "EXPR_FITEM", INT2NUM(EXPR_FITEM));
/* equals to +EXPR_BEG+ */
rb_define_const(Ripper, "EXPR_VALUE", INT2NUM(EXPR_VALUE));
/* equals to <tt>(EXPR_BEG | EXPR_MID | EXPR_CLASS)</tt> */
rb_define_const(Ripper, "EXPR_BEG_ANY", INT2NUM(EXPR_BEG_ANY));
/* equals to <tt>(EXPR_ARG | EXPR_CMDARG)</tt> */
rb_define_const(Ripper, "EXPR_ARG_ANY", INT2NUM(EXPR_ARG_ANY));
/* equals to <tt>(EXPR_END | EXPR_ENDARG | EXPR_ENDFN)</tt> */
rb_define_const(Ripper, "EXPR_END_ANY", INT2NUM(EXPR_END_ANY));
ripper_init_eventids1_table(Ripper);
ripper_init_eventids2_table(Ripper);
test/ripper/test_filter.rb (working copy)
data[:filename] = filename rescue nil
data[:lineno] = lineno
data[:column] = column
data[:state] = state
data[:token] = token
end
data
......
assert_equal(last_columns, filter.column)
end
def test_filter_state
data = {}
src = File.read(filename)
filter = Filter.new(src)
assert_equal(nil, filter.state)
filter.parse(data)
assert_not_nil(data[:state])
assert_not_nil(filter.state)
end
def test_filter_token
data = {}
filter = Filter.new("begin; puts 1; end")
test/ripper/test_ripper.rb (working copy)
assert_nil @ripper.column
end
def test_state
assert_nil @ripper.state
end
def test_encoding
assert_equal Encoding::UTF_8, @ripper.encoding
ripper = Ripper.new('# coding: iso-8859-15')
test/ripper/test_scanner_events.rb (working copy)
def test_lex
assert_equal [],
Ripper.lex('')
assert_equal [[[1,0], :on_ident, "a"]],
assert_equal [[[1,0], :on_ident, "a", Ripper::EXPR_CMDARG]],
Ripper.lex('a')
assert_equal [[[1, 0], :on_kw, "nil"]],
assert_equal [[[1, 0], :on_kw, "nil", Ripper::EXPR_END]],
Ripper.lex("nil")
assert_equal [[[1, 0], :on_kw, "def"],
[[1, 3], :on_sp, " "],
[[1, 4], :on_ident, "m"],
[[1, 5], :on_lparen, "("],
[[1, 6], :on_ident, "a"],
[[1, 7], :on_rparen, ")"],
[[1, 8], :on_kw, "end"]],
assert_equal [[[1, 0], :on_kw, "def", Ripper::EXPR_FNAME],
[[1, 3], :on_sp, " ", Ripper::EXPR_FNAME],
[[1, 4], :on_ident, "m", Ripper::EXPR_ENDFN],
[[1, 5], :on_lparen, "(", Ripper::EXPR_BEG | Ripper::EXPR_LABEL],
[[1, 6], :on_ident, "a", Ripper::EXPR_ARG],
[[1, 7], :on_rparen, ")", Ripper::EXPR_ENDFN],
[[1, 8], :on_kw, "end", Ripper::EXPR_END]],
Ripper.lex("def m(a)end")
assert_equal [[[1, 0], :on_int, "1"],
[[1, 1], :on_nl, "\n"],
[[2, 0], :on_int, "2"],
[[2, 1], :on_nl, "\n"],
[[3, 0], :on_int, "3"]],
assert_equal [[[1, 0], :on_int, "1", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
[[1, 1], :on_nl, "\n", Ripper::EXPR_BEG],
[[2, 0], :on_int, "2", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
[[2, 1], :on_nl, "\n", Ripper::EXPR_BEG],
[[3, 0], :on_int, "3", Ripper::EXPR_END | Ripper::EXPR_ENDARG]],
Ripper.lex("1\n2\n3")
assert_equal [[[1, 0], :on_heredoc_beg, "<<""EOS"],
[[1, 5], :on_nl, "\n"],
[[2, 0], :on_tstring_content, "heredoc\n"],
[[3, 0], :on_heredoc_end, "EOS"]],
assert_equal [[[1, 0], :on_heredoc_beg, "<<""EOS", Ripper::EXPR_BEG],
[[1, 5], :on_nl, "\n", Ripper::EXPR_BEG],
[[2, 0], :on_tstring_content, "heredoc\n", Ripper::EXPR_BEG],
[[3, 0], :on_heredoc_end, "EOS", Ripper::EXPR_BEG]],
Ripper.lex("<<""EOS\nheredoc\nEOS")
assert_equal [[[1, 0], :on_heredoc_beg, "<<""EOS"],
[[1, 5], :on_nl, "\n"],
[[2, 0], :on_heredoc_end, "EOS"]],
assert_equal [[[1, 0], :on_heredoc_beg, "<<""EOS", Ripper::EXPR_BEG],
[[1, 5], :on_nl, "\n", Ripper::EXPR_BEG],
[[2, 0], :on_heredoc_end, "EOS", Ripper::EXPR_BEG]],
Ripper.lex("<<""EOS\nEOS"),
"bug#4543"
assert_equal [[[1, 0], :on_regexp_beg, "/"],
[[1, 1], :on_tstring_content, "foo\nbar"],
[[2, 3], :on_regexp_end, "/"]],
assert_equal [[[1, 0], :on_regexp_beg, "/", Ripper::EXPR_BEG],
[[1, 1], :on_tstring_content, "foo\nbar", Ripper::EXPR_BEG],
[[2, 3], :on_regexp_end, "/", Ripper::EXPR_BEG]],
Ripper.lex("/foo\nbar/")
assert_equal [[[1, 0], :on_regexp_beg, "/"],
[[1, 1], :on_tstring_content, "foo\n\u3020"],
[[2, 3], :on_regexp_end, "/"]],
assert_equal [[[1, 0], :on_regexp_beg, "/", Ripper::EXPR_BEG],
[[1, 1], :on_tstring_content, "foo\n\u3020", Ripper::EXPR_BEG],
[[2, 3], :on_regexp_end, "/", Ripper::EXPR_BEG]],
Ripper.lex("/foo\n\u3020/")
assert_equal [[[1, 0], :on_tstring_beg, "'"],
[[1, 1], :on_tstring_content, "foo\n\xe3\x80\xa0"],
[[2, 3], :on_tstring_end, "'"]],
assert_equal [[[1, 0], :on_tstring_beg, "'", Ripper::EXPR_BEG],
[[1, 1], :on_tstring_content, "foo\n\xe3\x80\xa0", Ripper::EXPR_BEG],
[[2, 3], :on_tstring_end, "'", Ripper::EXPR_END | Ripper::EXPR_ENDARG]],
Ripper.lex("'foo\n\xe3\x80\xa0'")
assert_equal [[[1, 0], :on_tstring_beg, "'"],
[[1, 1], :on_tstring_content, "\u3042\n\u3044"],
[[2, 3], :on_tstring_end, "'"]],
assert_equal [[[1, 0], :on_tstring_beg, "'", Ripper::EXPR_BEG],
[[1, 1], :on_tstring_content, "\u3042\n\u3044", Ripper::EXPR_BEG],
[[2, 3], :on_tstring_end, "'", Ripper::EXPR_END | Ripper::EXPR_ENDARG]],
Ripper.lex("'\u3042\n\u3044'")
assert_equal [[[1, 0], :on_rational, "1r"],
[[1, 2], :on_nl, "\n"],
[[2, 0], :on_imaginary, "2i"],
[[2, 2], :on_nl, "\n"],
[[3, 0], :on_imaginary, "3ri"],
[[3, 3], :on_nl, "\n"],
[[4, 0], :on_rational, "4.2r"],
[[4, 4], :on_nl, "\n"],
[[5, 0], :on_imaginary, "5.6ri"],
assert_equal [[[1, 0], :on_rational, "1r", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
[[1, 2], :on_nl, "\n", Ripper::EXPR_BEG],
[[2, 0], :on_imaginary, "2i", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
[[2, 2], :on_nl, "\n", Ripper::EXPR_BEG],
[[3, 0], :on_imaginary, "3ri", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
[[3, 3], :on_nl, "\n", Ripper::EXPR_BEG],
[[4, 0], :on_rational, "4.2r", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
[[4, 4], :on_nl, "\n", Ripper::EXPR_BEG],
[[5, 0], :on_imaginary, "5.6ri", Ripper::EXPR_END | Ripper::EXPR_ENDARG],
],
Ripper.lex("1r\n2i\n3ri\n4.2r\n5.6ri")
assert_equal [[[1, 0], :on_heredoc_beg, "<<~EOS"],
[[1, 6], :on_nl, "\n"],
[[2, 0], :on_ignored_sp, " "],
[[2, 2], :on_tstring_content, "heredoc\n"],
[[3, 0], :on_heredoc_end, "EOS"]
assert_equal [[[1, 0], :on_heredoc_beg, "<<~EOS", Ripper::EXPR_BEG],
[[1, 6], :on_nl, "\n", Ripper::EXPR_BEG],
[[2, 0], :on_ignored_sp, " ", Ripper::EXPR_BEG],
[[2, 2], :on_tstring_content, "heredoc\n", Ripper::EXPR_BEG],
[[3, 0], :on_heredoc_end, "EOS", Ripper::EXPR_BEG]
],
Ripper.lex("<<~EOS\n heredoc\nEOS")
assert_equal [[[1, 0], :on_tstring_beg, "'"],
[[1, 1], :on_tstring_content, "foo"]],
assert_equal [[[1, 0], :on_tstring_beg, "'", Ripper::EXPR_BEG],
[[1, 1], :on_tstring_content, "foo", Ripper::EXPR_BEG]],
Ripper.lex("'foo")
end
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