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Treat D keywords as identifiers in certain postfix expressions. This allows

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one to, for example, access the "provider" field of a struct g_consumer,
even though "provider" is a D keyword.

PR:		169657
MFC after:	2 months
Discussed with:	Bryan Cantrill
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Mark Johnston 2014-10-06 21:52:40 +00:00
parent 65145c7f50
commit 84e874bd6c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=272671
1 changed files with 23 additions and 0 deletions
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23
cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y
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@ -207,6 +207,8 @@
%type <l_tok> unary_operator
%type <l_tok> struct_or_union
%type <l_str> dtrace_keyword_ident
%%
dtrace_program: d_expression DT_TOK_EOF { return (dt_node_root($1)); }
@ -391,12 +393,18 @@ postfix_expression:
| postfix_expression DT_TOK_DOT DT_TOK_TNAME {
$$ = OP2(DT_TOK_DOT, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_DOT dtrace_keyword_ident {
$$ = OP2(DT_TOK_DOT, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_PTR DT_TOK_IDENT {
$$ = OP2(DT_TOK_PTR, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_PTR DT_TOK_TNAME {
$$ = OP2(DT_TOK_PTR, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_PTR dtrace_keyword_ident {
$$ = OP2(DT_TOK_PTR, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_ADDADD {
$$ = OP1(DT_TOK_POSTINC, $1);
}
@ -411,6 +419,10 @@ postfix_expression:
DT_TOK_TNAME DT_TOK_RPAR {
$$ = dt_node_offsetof($3, $5);
}
| DT_TOK_OFFSETOF DT_TOK_LPAR type_name DT_TOK_COMMA
dtrace_keyword_ident DT_TOK_RPAR {
$$ = dt_node_offsetof($3, $5);
}
| DT_TOK_XLATE DT_TOK_LT type_name DT_TOK_GT
DT_TOK_LPAR expression DT_TOK_RPAR {
$$ = OP2(DT_TOK_XLATE, dt_node_type($3), $6);
@ -835,4 +847,15 @@ function_parameters:
| parameter_type_list { $$ = $1; }
;
dtrace_keyword_ident:
DT_KEY_PROBE { $$ = DUP("probe"); }
| DT_KEY_PROVIDER { $$ = DUP("provider"); }
| DT_KEY_SELF { $$ = DUP("self"); }
| DT_KEY_STRING { $$ = DUP("string"); }
| DT_TOK_STRINGOF { $$ = DUP("stringof"); }
| DT_KEY_USERLAND { $$ = DUP("userland"); }
| DT_TOK_XLATE { $$ = DUP("xlate"); }
| DT_KEY_XLATOR { $$ = DUP("translator"); }
;
%%