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parse.y: literal term lex_state

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* parse.y (parser_string_term, parser_parse_string): move setting
  lex_state operations from parser_yylex per each token types.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-09-20 08:38:52 +00:00
parent c18503c25a
commit 5da2f77b93
1 changed files with 32 additions and 36 deletions
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68
parse.y
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@ -6256,13 +6256,34 @@ parser_peek_variable_name(struct parser_params *parser)
return 0;
}
#define IS_ARG() IS_lex_state(EXPR_ARG_ANY)
#define IS_END() IS_lex_state(EXPR_END_ANY)
#define IS_BEG() (IS_lex_state(EXPR_BEG_ANY) || IS_lex_state_all(EXPR_ARG|EXPR_LABELED))
#define IS_SPCARG(c) (IS_ARG() && space_seen && !ISSPACE(c))
#define IS_LABEL_POSSIBLE() (\
(IS_lex_state(EXPR_LABEL|EXPR_ENDFN) && !cmd_state) || \
IS_ARG())
#define IS_LABEL_SUFFIX(n) (peek_n(':',(n)) && !peek_n(':', (n)+1))
#define IS_AFTER_OPERATOR() IS_lex_state(EXPR_FNAME | EXPR_DOT)
static inline enum yytokentype
parser_string_term(struct parser_params *parser, int func)
{
if (!(func & STR_FUNC_REGEXP)) return tSTRING_END;
set_yylval_num(regx_options());
dispatch_scan_event(tREGEXP_END);
return tREGEXP_END;
rb_gc_force_recycle((VALUE)lex_strterm);
lex_strterm = 0;
if (func & STR_FUNC_REGEXP) {
set_yylval_num(regx_options());
dispatch_scan_event(tREGEXP_END);
SET_LEX_STATE(EXPR_END|EXPR_ENDARG);
return tREGEXP_END;
}
if ((func & STR_FUNC_LABEL) && IS_LABEL_SUFFIX(0)) {
nextc();
SET_LEX_STATE(EXPR_BEG|EXPR_LABEL);
return tLABEL_END;
}
SET_LEX_STATE(EXPR_END|EXPR_ENDARG);
return tSTRING_END;
}
static enum yytokentype
@ -6275,6 +6296,8 @@ parser_parse_string(struct parser_params *parser, NODE *quote)
rb_encoding *enc = current_enc;
if (func & STR_FUNC_TERM) {
SET_LEX_STATE(EXPR_END|EXPR_ENDARG);
lex_strterm = 0;
return func & STR_FUNC_REGEXP ? tREGEXP_END : tSTRING_END;
}
c = nextc();
@ -6660,11 +6683,14 @@ parser_here_document(struct parser_params *parser, NODE *here)
#endif
restore:
heredoc_restore(lex_strterm);
lex_strterm = 0;
return 0;
}
if (was_bol() && whole_match_p(eos, len, indent)) {
dispatch_heredoc_end();
heredoc_restore(lex_strterm);
lex_strterm = 0;
SET_LEX_STATE(EXPR_END);
return tSTRING_END;
}
@ -7158,16 +7184,6 @@ parser_prepare(struct parser_params *parser)
parser->token_info_enabled = !compile_for_eval && RTEST(ruby_verbose);
}
#define IS_ARG() IS_lex_state(EXPR_ARG_ANY)
#define IS_END() IS_lex_state(EXPR_END_ANY)
#define IS_BEG() (IS_lex_state(EXPR_BEG_ANY) || IS_lex_state_all(EXPR_ARG|EXPR_LABELED))
#define IS_SPCARG(c) (IS_ARG() && space_seen && !ISSPACE(c))
#define IS_LABEL_POSSIBLE() (\
(IS_lex_state(EXPR_LABEL|EXPR_ENDFN) && !cmd_state) || \
IS_ARG())
#define IS_LABEL_SUFFIX(n) (peek_n(':',(n)) && !peek_n(':', (n)+1))
#define IS_AFTER_OPERATOR() IS_lex_state(EXPR_FNAME | EXPR_DOT)
#ifndef RIPPER
#define ambiguous_operator(tok, op, syn) ( \
rb_warning0("`"op"' after local variable or literal is interpreted as binary operator"), \
@ -7912,32 +7928,12 @@ parser_yylex(struct parser_params *parser)
int token_seen = parser->token_seen;
if (lex_strterm) {
enum yytokentype token;
if (nd_type(lex_strterm) == NODE_HEREDOC) {
token = here_document(lex_strterm);
if (token == tSTRING_END) {
lex_strterm = 0;
SET_LEX_STATE(EXPR_END);
}
return here_document(lex_strterm);
}
else {
token = parse_string(lex_strterm);
if ((token == tSTRING_END) && (lex_strterm->nd_func & STR_FUNC_LABEL)) {
if (((IS_lex_state(EXPR_BEG | EXPR_ENDFN) && !COND_P()) || IS_ARG()) &&
IS_LABEL_SUFFIX(0)) {
nextc();
token = tLABEL_END;
}
}
if (token == tSTRING_END || token == tREGEXP_END || token == tLABEL_END) {
const enum lex_state_e next_state =
token == tLABEL_END ? EXPR_BEG|EXPR_LABEL : EXPR_END|EXPR_ENDARG;
rb_gc_force_recycle((VALUE)lex_strterm);
lex_strterm = 0;
SET_LEX_STATE(next_state);
}
return parse_string(lex_strterm);
}
return token;
}
cmd_state = command_start;
command_start = FALSE;