Date: Mon, 6 Oct 2014 21:52:41 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r272671 - head/cddl/contrib/opensolaris/lib/libdtrace/common Message-ID: <201410062152.s96LqfYP033439@svn.freebsd.org>
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Author: markj Date: Mon Oct 6 21:52:40 2014 New Revision: 272671 URL: https://svnweb.freebsd.org/changeset/base/272671 Log: 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 Modified: head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y Modified: head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y ============================================================================== --- head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y Mon Oct 6 20:48:01 2014 (r272670) +++ head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_grammar.y Mon Oct 6 21:52:40 2014 (r272671) @@ -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"); } + ; + %%
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