diff options
| author | markj <markj@FreeBSD.org> | 2014-10-06 21:52:40 +0000 |
|---|---|---|
| committer | markj <markj@FreeBSD.org> | 2014-10-06 21:52:40 +0000 |
| commit | a1e6db42da46ee181d41769f03e9d361096c4eab (patch) | |
| tree | 57656078b2b05bfcb2ef38494255e053d8dbeff2 | |
| parent | ce319c48f4b85295771a7acf3f6c542606696f6f (diff) | |
| download | FreeBSD-src-a1e6db42da46ee181d41769f03e9d361096c4eab.zip FreeBSD-src-a1e6db42da46ee181d41769f03e9d361096c4eab.tar.gz | |
Treat D keywords as identifiers in certain postfix expressions. This allows
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
| -rw-r--r-- | cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y index 07790f4..6321b65 100644 --- a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y +++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y @@ -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"); } + ; + %% |
