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-rw-r--r--scripts/genksyms/lex.l51
1 files changed, 49 insertions, 2 deletions
diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l
index f770071719c..e583565f201 100644
--- a/scripts/genksyms/lex.l
+++ b/scripts/genksyms/lex.l
@@ -129,8 +129,9 @@ int
yylex(void)
{
static enum {
- ST_NOTSTARTED, ST_NORMAL, ST_ATTRIBUTE, ST_ASM, ST_BRACKET, ST_BRACE,
- ST_EXPRESSION, ST_TABLE_1, ST_TABLE_2, ST_TABLE_3, ST_TABLE_4,
+ ST_NOTSTARTED, ST_NORMAL, ST_ATTRIBUTE, ST_ASM, ST_TYPEOF, ST_TYPEOF_1,
+ ST_BRACKET, ST_BRACE, ST_EXPRESSION,
+ ST_TABLE_1, ST_TABLE_2, ST_TABLE_3, ST_TABLE_4,
ST_TABLE_5, ST_TABLE_6
} lexstate = ST_NOTSTARTED;
@@ -198,6 +199,10 @@ repeat:
lexstate = ST_ASM;
count = 0;
goto repeat;
+ case TYPEOF_KEYW:
+ lexstate = ST_TYPEOF;
+ count = 0;
+ goto repeat;
case STRUCT_KEYW:
case UNION_KEYW:
@@ -284,6 +289,48 @@ repeat:
}
break;
+ case ST_TYPEOF:
+ switch (token)
+ {
+ case '(':
+ if ( ++count == 1 )
+ lexstate = ST_TYPEOF_1;
+ else
+ APP;
+ goto repeat;
+ case ')':
+ APP;
+ if (--count == 0)
+ {
+ lexstate = ST_NORMAL;
+ token = TYPEOF_PHRASE;
+ break;
+ }
+ goto repeat;
+ default:
+ APP;
+ goto repeat;
+ }
+ break;
+
+ case ST_TYPEOF_1:
+ if (token == IDENT)
+ {
+ if (is_reserved_word(yytext, yyleng)
+ || find_symbol(yytext, SYM_TYPEDEF, 1))
+ {
+ yyless(0);
+ unput('(');
+ lexstate = ST_NORMAL;
+ token = TYPEOF_KEYW;
+ break;
+ }
+ _APP("(", 1);
+ }
+ APP;
+ lexstate = ST_TYPEOF;
+ goto repeat;
+
case ST_BRACKET:
APP;
switch (token)