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parse.y: fix state after ivar/cvar

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* parse.y (parse_atmark): return EXPR_END or EXPR_ENDFN, depending
  on the previous state, even incomplete names consistently.
This commit is contained in:
Nobuyoshi Nakada 2019-05-29 21:39:45 +09:00
parent 83e905eb4e
commit 1da5c73932
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GPG Key ID: 4BC7D6DF58D8DF60
2 changed files with 21 additions and 2 deletions
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5
parse.y
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@ -8396,6 +8396,7 @@ parse_atmark(struct parser_params *p, const enum lex_state_e last_state)
tokadd(p, '@');
c = nextc(p);
}
SET_LEX_STATE(IS_lex_state_for(last_state, EXPR_FNAME) ? EXPR_ENDFN : EXPR_END);
if (c == -1 || !parser_is_identchar(p)) {
pushback(p, c);
RUBY_SET_YYLLOC(loc);
@ -8407,6 +8408,7 @@ parse_atmark(struct parser_params *p, const enum lex_state_e last_state)
}
parser_show_error_line(p, &loc);
set_yylval_noname();
SET_LEX_STATE(EXPR_END);
return result;
}
else if (ISDIGIT(c)) {
@ -8417,7 +8419,7 @@ parse_atmark(struct parser_params *p, const enum lex_state_e last_state)
p->lex.pcur = ptr + len;
RUBY_SET_YYLLOC(loc);
if (result == tIVAR) {
if (IS_lex_state(EXPR_FNAME)) {
if (IS_lex_state_for(last_state, EXPR_FNAME)) {
compile_error(p, "`@%c' is not allowed as an instance variable name", c);
}
else if (ptr[0] == '0') {
@ -8439,7 +8441,6 @@ parse_atmark(struct parser_params *p, const enum lex_state_e last_state)
}
if (tokadd_ident(p, c)) return 0;
SET_LEX_STATE(EXPR_END);
tokenize_ident(p, last_state);
return result;
}

18
test/ripper/test_lexer.rb
View File

@ -95,4 +95,22 @@ class TestRipper::Lexer < Test::Unit::TestCase
assert_equal "string\#{nil}\n",
Ripper.slice(%(<<HERE\nstring\#{nil}\nHERE), "heredoc_beg .*? nl $(.*?) heredoc_end", 1)
end
def state(name)
Ripper::Lexer::State.new(Ripper.const_get(name))
end
def test_state_after_ivar
assert_equal [[1,0],:on_ivar,"@a",state(:EXPR_END)], Ripper.lex("@a").last
assert_equal [[1,1],:on_ivar,"@a",state(:EXPR_ENDFN)], Ripper.lex(":@a").last
assert_equal [[1,0],:on_ivar,"@1",state(:EXPR_END)], Ripper.lex("@1").last
assert_equal [[1,1],:on_ivar,"@1",state(:EXPR_ENDFN)], Ripper.lex(":@1").last
end
def test_state_after_cvar
assert_equal [[1,0],:on_cvar,"@@a",state(:EXPR_END)], Ripper.lex("@@a").last
assert_equal [[1,1],:on_cvar,"@@a",state(:EXPR_ENDFN)], Ripper.lex(":@@a").last
assert_equal [[1,0],:on_cvar,"@@1",state(:EXPR_END)], Ripper.lex("@@1").last
assert_equal [[1,1],:on_cvar,"@@1",state(:EXPR_ENDFN)], Ripper.lex(":@@1").last
end
end