From: Dale Weiler Date: Wed, 30 Jan 2013 01:24:58 +0000 (+0000) Subject: Removed #warning and #error from ftepp, and made it part of the parser routine. ... X-Git-Tag: before-library~201 X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=3d35804a7d79a99527cf785a133aaff0dd24b457;p=xonotic%2Fgmqcc.git Removed #warning and #error from ftepp, and made it part of the parser routine. These are "directives" that should exist regardless if -fftepp is enabled, like #pragma. Implemented #warning, #message and #error as directives in parser instead. --- diff --git a/ftepp.c b/ftepp.c index 9be8c54..054972e 100644 --- a/ftepp.c +++ b/ftepp.c @@ -1269,55 +1269,6 @@ static char *ftepp_include_find(ftepp_t *ftepp, const char *file) return filename; } -static bool ftepp_directive_warning(ftepp_t *ftepp) { - char *message = NULL; - - if (!ftepp_skipspace(ftepp)) - return false; - - /* handle the odd non string constant case so it works like C */ - if (ftepp->token != TOKEN_STRINGCONST) { - bool store = false; - vec_upload(message, "#warning", 8); - ftepp_next(ftepp); - while (ftepp->token != TOKEN_EOL) { - vec_upload(message, ftepp_tokval(ftepp), strlen(ftepp_tokval(ftepp))); - ftepp_next(ftepp); - } - vec_push(message, '\0'); - store = ftepp_warn(ftepp, WARN_CPP, message); - vec_free(message); - return store; - } - - unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp)); - return ftepp_warn(ftepp, WARN_CPP, "#warning %s", ftepp_tokval(ftepp)); -} - -static void ftepp_directive_error(ftepp_t *ftepp) { - char *message = NULL; - - if (!ftepp_skipspace(ftepp)) - return; - - /* handle the odd non string constant case so it works like C */ - if (ftepp->token != TOKEN_STRINGCONST) { - vec_upload(message, "#error", 6); - ftepp_next(ftepp); - while (ftepp->token != TOKEN_EOL) { - vec_upload(message, ftepp_tokval(ftepp), strlen(ftepp_tokval(ftepp))); - ftepp_next(ftepp); - } - vec_push(message, '\0'); - ftepp_error(ftepp, message); - vec_free(message); - return; - } - - unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp)); - ftepp_error(ftepp, "#error %s", ftepp_tokval(ftepp)); -} - /** * Include a file. * FIXME: do we need/want a -I option? @@ -1513,14 +1464,6 @@ static bool ftepp_hash(ftepp_t *ftepp) ftepp_out(ftepp, "#", false); break; } - else if (!strcmp(ftepp_tokval(ftepp), "warning")) { - ftepp_directive_warning(ftepp); - break; - } - else if (!strcmp(ftepp_tokval(ftepp), "error")) { - ftepp_directive_error(ftepp); - break; - } else { if (ftepp->output_on) { ftepp_error(ftepp, "unrecognized preprocessor directive: `%s`", ftepp_tokval(ftepp)); diff --git a/parser.c b/parser.c index 2e86528..d64dd2e 100644 --- a/parser.c +++ b/parser.c @@ -3292,15 +3292,26 @@ static bool parse_eol(parser_t *parser) return parser->tok == TOKEN_EOL; } -static bool parse_pragma_do(parser_t *parser) -{ - if (!parser_next(parser) || - parser->tok != TOKEN_IDENT || - strcmp(parser_tokval(parser), "pragma")) - { - parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser)); - return false; - } +/* + * Traditionally you'd implement warning, error, and message + * directives in the preprocessor. However, like #pragma, these + * shouldn't depend on -fftepp to utilize. So they're instead + * implemented here. + */ +enum { + PARSE_DIRECTIVE_ERROR, + PARSE_DIRECTIVE_MESSAGE, + PARSE_DIRECTIVE_WARNING, + PARSE_DIRECTIVE_COUNT +}; + +static const char *parser_directives[PARSE_DIRECTIVE_COUNT] = { + "error", + "message", + "warning" +}; + +static bool parse_pragma_do(parser_t *parser) { if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) { parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser)); return false; @@ -3311,35 +3322,102 @@ static bool parse_pragma_do(parser_t *parser) parseerror(parser, "`noref` pragma requires an argument: 0 or 1"); return false; } + parser->noref = !!parser_token(parser)->constval.i; + if (!parse_eol(parser)) { parseerror(parser, "parse error after `noref` pragma"); return false; } - } - else - { + } else { (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser)); return false; } + return true; +} + +static bool parse_directive_or_pragma_do(parser_t *parser, bool *pragma) { + + size_t type = PARSE_DIRECTIVE_COUNT; + + if (!parser_next(parser) || parser->tok != TOKEN_IDENT) { + parseerror(parser, "expected `pragma, error, message, warning` after `#`, got `%s`", + parser_tokval(parser)); + + return false; + } + + if (!strcmp(parser_tokval(parser), "pragma" )) { + *pragma = true; + + return parse_pragma_do(parser); + } + + if (!strcmp(parser_tokval(parser), "error" )) type = PARSE_DIRECTIVE_ERROR; + if (!strcmp(parser_tokval(parser), "message")) type = PARSE_DIRECTIVE_MESSAGE; + if (!strcmp(parser_tokval(parser), "warning")) type = PARSE_DIRECTIVE_WARNING; + + switch (type) { + case PARSE_DIRECTIVE_ERROR: + case PARSE_DIRECTIVE_MESSAGE: + case PARSE_DIRECTIVE_WARNING: + *pragma = false; + + if (!parse_skipwhite(parser) || parser->tok != TOKEN_STRINGCONST) { + parseerror(parser, "expected %s, got `%`", parser_directives[type], parser_tokval(parser)); + return false; + } + + switch (type) { + case PARSE_DIRECTIVE_ERROR: + con_cprintmsg(&parser->lex->tok.ctx, LVL_ERROR, "error", parser_tokval(parser)); + compile_errors ++; /* hack */ + break; + /*break;*/ + + case PARSE_DIRECTIVE_MESSAGE: + con_cprintmsg(&parser->lex->tok.ctx, LVL_MSG, "message", parser_tokval(parser)); + break; + + case PARSE_DIRECTIVE_WARNING: + con_cprintmsg(&parser->lex->tok.ctx, LVL_WARNING, "warning", parser_tokval(parser)); + break; + } + + if (!parse_eol(parser)) { + parseerror(parser, "parse error after `%` directive", parser_directives[type]); + return false; + } + + return (type != PARSE_DIRECTIVE_ERROR); + + default: + parseerror(parser, "invalid directive `%s`", parser_tokval(parser)); + return false; + } return true; } -static bool parse_pragma(parser_t *parser) +static bool parse_directive_or_pragma(parser_t *parser) { bool rv; + bool pragma; /* true when parsing pragma */ + parser->lex->flags.preprocessing = true; - parser->lex->flags.mergelines = true; - rv = parse_pragma_do(parser); + parser->lex->flags.mergelines = true; + + rv = parse_directive_or_pragma_do(parser, &pragma); + if (parser->tok != TOKEN_EOL) { - parseerror(parser, "junk after pragma"); + parseerror(parser, "junk after %s", (pragma) ? "pragma" : "directive"); rv = false; } parser->lex->flags.preprocessing = false; - parser->lex->flags.mergelines = false; + parser->lex->flags.mergelines = false; + if (!parser_next(parser)) { - parseerror(parser, "parse error after pragma"); + parseerror(parser, "parse error after %s", (pragma) ? "pragma" : "directive"); rv = false; } return rv; @@ -5520,7 +5598,7 @@ static bool parser_global_statement(parser_t *parser) } else if (parser->tok == '#') { - return parse_pragma(parser); + return parse_directive_or_pragma(parser); } else if (parser->tok == '$') {