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parse.y: refactor list literals
* parse.y (words, symbols, qwords, qsymbols): unify empty list and non-empty list. * parse.y (parser_parse_string): always dispatch a word separator at the beginning of list literals. [ruby-core:83871] [Bug #14126] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60892 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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2 changed files with 35 additions and 71 deletions
90
parse.y
90
parse.y
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@ -3952,21 +3952,12 @@ regexp : tREGEXP_BEG regexp_contents tREGEXP_END
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}
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;
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words : tWORDS_BEG ' ' tSTRING_END
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words : tWORDS_BEG ' ' word_list tSTRING_END
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{
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/*%%%*/
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$$ = new_zarray(&@$);
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$$ = $3 ? $3 : new_zarray(&@$);
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/*%
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$$ = dispatch0(words_new);
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$$ = dispatch1(array, $$);
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%*/
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}
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| tWORDS_BEG word_list tSTRING_END
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{
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/*%%%*/
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$$ = $2;
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/*%
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$$ = dispatch1(array, $2);
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$$ = dispatch1(array, $3);
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%*/
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}
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;
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@ -4007,21 +3998,12 @@ word : string_content
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}
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;
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symbols : tSYMBOLS_BEG ' ' tSTRING_END
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symbols : tSYMBOLS_BEG ' ' symbol_list tSTRING_END
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{
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/*%%%*/
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$$ = new_zarray(&@$);
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$$ = $3 ? $3 : new_zarray(&@$);
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/*%
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$$ = dispatch0(symbols_new);
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$$ = dispatch1(array, $$);
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%*/
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}
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| tSYMBOLS_BEG symbol_list tSTRING_END
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{
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/*%%%*/
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$$ = $2;
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/*%
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$$ = dispatch1(array, $2);
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$$ = dispatch1(array, $3);
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%*/
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}
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;
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@ -4052,40 +4034,22 @@ symbol_list : /* none */
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}
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;
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qwords : tQWORDS_BEG ' ' tSTRING_END
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qwords : tQWORDS_BEG ' ' qword_list tSTRING_END
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{
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/*%%%*/
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$$ = new_zarray(&@$);
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$$ = $3 ? $3 : new_zarray(&@$);
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/*%
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$$ = dispatch0(qwords_new);
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$$ = dispatch1(array, $$);
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%*/
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}
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| tQWORDS_BEG qword_list tSTRING_END
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{
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/*%%%*/
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$$ = $2;
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/*%
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$$ = dispatch1(array, $2);
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$$ = dispatch1(array, $3);
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%*/
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}
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;
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qsymbols : tQSYMBOLS_BEG ' ' tSTRING_END
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qsymbols : tQSYMBOLS_BEG ' ' qsym_list tSTRING_END
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{
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/*%%%*/
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$$ = new_zarray(&@$);
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$$ = $3 ? $3 : new_zarray(&@$);
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/*%
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$$ = dispatch0(qsymbols_new);
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$$ = dispatch1(array, $$);
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%*/
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}
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| tQSYMBOLS_BEG qsym_list tSTRING_END
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{
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/*%%%*/
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$$ = $2;
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/*%
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$$ = dispatch1(array, $2);
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$$ = dispatch1(array, $3);
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%*/
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}
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;
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@ -5781,6 +5745,7 @@ rb_parser_compile_file_path(VALUE vparser, VALUE fname, VALUE file, int start)
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#define STR_FUNC_SYMBOL 0x10
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#define STR_FUNC_INDENT 0x20
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#define STR_FUNC_LABEL 0x40
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#define STR_FUNC_LIST 0x4000
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#define STR_FUNC_TERM 0x8000
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enum string_type {
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@ -5789,8 +5754,8 @@ enum string_type {
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str_dquote = (STR_FUNC_EXPAND),
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str_xquote = (STR_FUNC_EXPAND),
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str_regexp = (STR_FUNC_REGEXP|STR_FUNC_ESCAPE|STR_FUNC_EXPAND),
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str_sword = (STR_FUNC_QWORDS),
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str_dword = (STR_FUNC_QWORDS|STR_FUNC_EXPAND),
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str_sword = (STR_FUNC_QWORDS|STR_FUNC_LIST),
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str_dword = (STR_FUNC_QWORDS|STR_FUNC_EXPAND|STR_FUNC_LIST),
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str_ssym = (STR_FUNC_SYMBOL),
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str_dsym = (STR_FUNC_SYMBOL|STR_FUNC_EXPAND)
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};
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@ -6602,9 +6567,7 @@ parser_parse_string(struct parser_params *parser, rb_strterm_literal_t *quote)
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VALUE lit;
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if (func & STR_FUNC_TERM) {
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#ifdef RIPPER
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if (func & STR_FUNC_QWORDS) nextc(); /* delayed term */
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#endif
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SET_LEX_STATE(EXPR_END|EXPR_ENDARG);
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lex_strterm = 0;
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return func & STR_FUNC_REGEXP ? tREGEXP_END : tSTRING_END;
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@ -6614,12 +6577,14 @@ parser_parse_string(struct parser_params *parser, rb_strterm_literal_t *quote)
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do {c = nextc();} while (ISSPACE(c));
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space = 1;
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}
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if (func & STR_FUNC_LIST) {
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quote->u1.func &= ~STR_FUNC_LIST;
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space = 1;
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}
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if (c == term && !quote->u0.nest) {
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if (func & STR_FUNC_QWORDS) {
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quote->u1.func |= STR_FUNC_TERM;
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#ifdef RIPPER
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pushback(c); /* dispatch the term at tSTRING_END */
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#endif
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add_delayed_token(parser->tokp, lex_p);
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return ' ';
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}
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@ -7866,19 +7831,6 @@ parse_qmark(struct parser_params *parser, int space_seen)
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return tCHAR;
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}
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#ifndef RIPPER
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static void
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parser_skip_words_sep(struct parser_params *parser)
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{
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int c;
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do {c = nextc();} while (ISSPACE(c));
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pushback(c);
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}
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#define skip_words_sep() parser_skip_words_sep(parser)
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#else
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#define skip_words_sep() ((void)0)
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#endif
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static enum yytokentype
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parse_percent(struct parser_params *parser, const int space_seen, const enum lex_state_e last_state)
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{
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@ -7923,22 +7875,18 @@ parse_percent(struct parser_params *parser, const int space_seen, const enum lex
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case 'W':
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lex_strterm = NEW_STRTERM(str_dword, term, paren);
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skip_words_sep();
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return tWORDS_BEG;
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case 'w':
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lex_strterm = NEW_STRTERM(str_sword, term, paren);
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skip_words_sep();
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return tQWORDS_BEG;
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case 'I':
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lex_strterm = NEW_STRTERM(str_dword, term, paren);
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skip_words_sep();
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return tSYMBOLS_BEG;
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case 'i':
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lex_strterm = NEW_STRTERM(str_sword, term, paren);
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skip_words_sep();
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return tQSYMBOLS_BEG;
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case 'x':
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@ -1017,6 +1017,10 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
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tree = parse('%w[a]', :on_qwords_add) {thru_qwords_add = true}
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assert_equal true, thru_qwords_add
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assert_equal '[array([a])]', tree
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thru_qwords_add = false
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tree = parse('%w[ a ]', :on_qwords_add) {thru_qwords_add = true}
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assert_equal true, thru_qwords_add
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assert_equal '[array([a])]', tree
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end
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def test_qsymbols_add
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@ -1024,6 +1028,10 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
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tree = parse('%i[a]', :on_qsymbols_add) {thru_qsymbols_add = true}
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assert_equal true, thru_qsymbols_add
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assert_equal '[array([:a])]', tree
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thru_qsymbols_add = false
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tree = parse('%i[ a ]', :on_qsymbols_add) {thru_qsymbols_add = true}
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assert_equal true, thru_qsymbols_add
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assert_equal '[array([:a])]', tree
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end
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def test_symbols_add
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@ -1031,6 +1039,10 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
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tree = parse('%I[a]', :on_symbols_add) {thru_symbols_add = true}
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assert_equal true, thru_symbols_add
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assert_equal '[array([:a])]', tree
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thru_symbols_add = false
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tree = parse('%I[ a ]', :on_symbols_add) {thru_symbols_add = true}
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assert_equal true, thru_symbols_add
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assert_equal '[array([:a])]', tree
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end
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def test_qwords_new
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@ -1383,6 +1395,10 @@ class TestRipper::ParserEvents < Test::Unit::TestCase
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tree = parse('%W[a]', :on_words_add) {thru_words_add = true}
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assert_equal true, thru_words_add
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assert_equal '[array([a])]', tree
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thru_words_add = false
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tree = parse('%W[ a ]', :on_words_add) {thru_words_add = true}
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assert_equal true, thru_words_add
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assert_equal '[array([a])]', tree
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end
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def test_words_new
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