%{ /* * IDL Compiler * * Copyright 2002 Ove Kaaven * Copyright 2006-2008 Robert Shearman * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include #include #include #include #include #include #include "widl.h" #include "utils.h" #include "parser.h" #include "header.h" #include "typelib.h" #include "typegen.h" #include "expr.h" #include "typetree.h" #if defined(YYBYACC) /* Berkeley yacc (byacc) doesn't seem to know about these */ /* Some *BSD supplied versions do define these though */ # ifndef YYEMPTY # define YYEMPTY (-1) /* Empty lookahead value of yychar */ # endif # ifndef YYLEX # define YYLEX yylex() # endif #elif defined(YYBISON) /* Bison was used for original development */ /* #define YYEMPTY -2 */ /* #define YYLEX yylex() */ #else /* No yacc we know yet */ # if !defined(YYEMPTY) || !defined(YYLEX) # error Yacc version/type unknown. This version needs to be verified for settings of YYEMPTY and YYLEX. # elif defined(__GNUC__) /* gcc defines the #warning directive */ # warning Yacc version/type unknown. It defines YYEMPTY and YYLEX, but is not tested /* #else we just take a chance that it works... */ # endif #endif #define YYERROR_VERBOSE static unsigned char pointer_default = RPC_FC_UP; static int is_object_interface = FALSE; typedef struct list typelist_t; struct typenode { type_t *type; struct list entry; }; struct _import_t { char *name; int import_performed; }; typedef struct _decl_spec_t { type_t *type; attr_list_t *attrs; enum storage_class stgclass; } decl_spec_t; typelist_t incomplete_types = LIST_INIT(incomplete_types); static void fix_incomplete(void); static void fix_incomplete_types(type_t *complete_type); static str_list_t *append_str(str_list_t *list, char *str); static attr_list_t *append_attr(attr_list_t *list, attr_t *attr); static attr_list_t *append_attr_list(attr_list_t *new_list, attr_list_t *old_list); static decl_spec_t *make_decl_spec(type_t *type, decl_spec_t *left, decl_spec_t *right, attr_t *attr, enum storage_class stgclass); static attr_t *make_attr(enum attr_type type); static attr_t *make_attrv(enum attr_type type, unsigned long val); static attr_t *make_attrp(enum attr_type type, void *val); static expr_list_t *append_expr(expr_list_t *list, expr_t *expr); static array_dims_t *append_array(array_dims_t *list, expr_t *expr); static void set_type(var_t *v, decl_spec_t *decl_spec, const declarator_t *decl, int top); static var_list_t *set_var_types(attr_list_t *attrs, decl_spec_t *decl_spec, declarator_list_t *decls); static ifref_list_t *append_ifref(ifref_list_t *list, ifref_t *iface); static ifref_t *make_ifref(type_t *iface); static var_list_t *append_var_list(var_list_t *list, var_list_t *vars); static declarator_list_t *append_declarator(declarator_list_t *list, declarator_t *p); static declarator_t *make_declarator(var_t *var); static func_list_t *append_func(func_list_t *list, func_t *func); static func_t *make_func(var_t *def); static type_t *make_safearray(type_t *type); static typelib_t *make_library(const char *name, const attr_list_t *attrs); static type_t *append_ptrchain_type(type_t *ptrchain, type_t *type); static type_t *reg_typedefs(decl_spec_t *decl_spec, var_list_t *names, attr_list_t *attrs); static type_t *find_type_or_error(const char *name, int t); static type_t *find_type_or_error2(char *name, int t); static var_t *reg_const(var_t *var); static char *gen_name(void); static void check_arg(var_t *arg); static void check_statements(const statement_list_t *stmts, int is_inside_library); static void check_all_user_types(const statement_list_t *stmts); static attr_list_t *check_iface_attrs(const char *name, attr_list_t *attrs); static attr_list_t *check_function_attrs(const char *name, attr_list_t *attrs); static attr_list_t *check_typedef_attrs(attr_list_t *attrs); static attr_list_t *check_enum_attrs(attr_list_t *attrs); static attr_list_t *check_struct_attrs(attr_list_t *attrs); static attr_list_t *check_union_attrs(attr_list_t *attrs); static attr_list_t *check_field_attrs(const char *name, attr_list_t *attrs); static attr_list_t *check_library_attrs(const char *name, attr_list_t *attrs); static attr_list_t *check_dispiface_attrs(const char *name, attr_list_t *attrs); static attr_list_t *check_module_attrs(const char *name, attr_list_t *attrs); static attr_list_t *check_coclass_attrs(const char *name, attr_list_t *attrs); const char *get_attr_display_name(enum attr_type type); static void add_explicit_handle_if_necessary(var_t *func); static void check_def(const type_t *t); static statement_t *make_statement(enum statement_type type); static statement_t *make_statement_type_decl(type_t *type); static statement_t *make_statement_reference(type_t *type); static statement_t *make_statement_declaration(var_t *var); static statement_t *make_statement_library(typelib_t *typelib); static statement_t *make_statement_cppquote(const char *str); static statement_t *make_statement_importlib(const char *str); static statement_t *make_statement_module(type_t *type); static statement_t *make_statement_typedef(var_list_t *names); static statement_t *make_statement_import(const char *str); static statement_t *make_statement_typedef(var_list_t *names); static statement_list_t *append_statement(statement_list_t *list, statement_t *stmt); %} %union { attr_t *attr; attr_list_t *attr_list; str_list_t *str_list; expr_t *expr; expr_list_t *expr_list; array_dims_t *array_dims; type_t *type; var_t *var; var_list_t *var_list; declarator_t *declarator; declarator_list_t *declarator_list; func_t *func; func_list_t *func_list; statement_t *statement; statement_list_t *stmt_list; ifref_t *ifref; ifref_list_t *ifref_list; char *str; UUID *uuid; unsigned int num; double dbl; interface_info_t ifinfo; typelib_t *typelib; struct _import_t *import; struct _decl_spec_t *declspec; enum storage_class stgclass; } %token aIDENTIFIER %token aKNOWNTYPE %token aNUM aHEXNUM %token aDOUBLE %token aSTRING aWSTRING %token aUUID %token aEOF %token SHL SHR %token MEMBERPTR %token EQUALITY INEQUALITY %token GREATEREQUAL LESSEQUAL %token LOGICALOR LOGICALAND %token tAGGREGATABLE tALLOCATE tAPPOBJECT tASYNC tASYNCUUID %token tAUTOHANDLE tBINDABLE tBOOLEAN tBROADCAST tBYTE tBYTECOUNT %token tCALLAS tCALLBACK tCASE tCDECL tCHAR tCOCLASS tCODE tCOMMSTATUS %token tCONST tCONTEXTHANDLE tCONTEXTHANDLENOSERIALIZE %token tCONTEXTHANDLESERIALIZE tCONTROL tCPPQUOTE %token tDEFAULT %token tDEFAULTCOLLELEM %token tDEFAULTVALUE %token tDEFAULTVTABLE %token tDISPLAYBIND %token tDISPINTERFACE %token tDLLNAME tDOUBLE tDUAL %token tENDPOINT %token tENTRY tENUM tERRORSTATUST %token tEXPLICITHANDLE tEXTERN %token tFALSE %token tFASTCALL %token tFLOAT %token tHANDLE %token tHANDLET %token tHELPCONTEXT tHELPFILE %token tHELPSTRING tHELPSTRINGCONTEXT tHELPSTRINGDLL %token tHIDDEN %token tHYPER tID tIDEMPOTENT %token tIIDIS %token tIMMEDIATEBIND %token tIMPLICITHANDLE %token tIMPORT tIMPORTLIB %token tIN tIN_LINE tINLINE %token tINPUTSYNC %token tINT tINT64 %token tINTERFACE %token tLCID %token tLENGTHIS tLIBRARY %token tLOCAL %token tLONG %token tMETHODS %token tMODULE %token tNONBROWSABLE %token tNONCREATABLE %token tNONEXTENSIBLE %token tNULL %token tOBJECT tODL tOLEAUTOMATION %token tOPTIONAL %token tOUT %token tPASCAL %token tPOINTERDEFAULT %token tPROPERTIES %token tPROPGET tPROPPUT tPROPPUTREF %token tPTR %token tPUBLIC %token tRANGE %token tREADONLY tREF %token tREGISTER %token tREQUESTEDIT %token tRESTRICTED %token tRETVAL %token tSAFEARRAY %token tSHORT %token tSIGNED %token tSIZEIS tSIZEOF %token tSMALL %token tSOURCE %token tSTATIC %token tSTDCALL %token tSTRICTCONTEXTHANDLE %token tSTRING tSTRUCT %token tSWITCH tSWITCHIS tSWITCHTYPE %token tTRANSMITAS %token tTRUE %token tTYPEDEF %token tUNION %token tUNIQUE %token tUNSIGNED %token tUUID %token tV1ENUM %token tVARARG %token tVERSION %token tVOID %token tWCHAR tWIREMARSHAL %type attribute type_qualifier function_specifier %type m_attributes attributes attrib_list m_type_qual_list %type str_list %type m_expr expr expr_const expr_int_const array %type m_exprs /* exprs expr_list */ expr_list_int_const %type interfacehdr %type storage_cls_spec %type decl_spec decl_spec_no_type m_decl_spec_no_type %type inherit interface interfacedef interfacedec %type dispinterface dispinterfacehdr dispinterfacedef %type module modulehdr moduledef %type base_type int_std %type enumdef structdef uniondef typedecl %type type %type coclass_int %type coclass_ints %type arg ne_union_field union_field s_field case enum declaration %type m_args no_args args fields ne_union_fields cases enums enum_list dispint_props field %type m_ident ident %type declarator direct_declarator init_declarator %type declarator_list %type funcdef %type coclass coclasshdr coclassdef %type pointer_type version %type libraryhdr callconv cppquote importlib import t_ident %type uuid_string %type import_start %type library_start librarydef %type statement typedef %type gbl_statements imp_statements int_statements dispint_meths %left ',' %right '?' ':' %left LOGICALOR %left LOGICALAND %left '|' %left '^' %left '&' %left EQUALITY INEQUALITY %left '<' '>' LESSEQUAL GREATEREQUAL %left SHL SHR %left '-' '+' %left '*' '/' '%' %right '!' '~' CAST PPTR POS NEG ADDRESSOF tSIZEOF %left '.' MEMBERPTR '[' ']' %% input: gbl_statements { fix_incomplete(); check_statements($1, FALSE); check_all_user_types($1); write_header($1); write_id_data($1); write_proxies($1); write_client($1); write_server($1); write_dlldata($1); write_local_stubs($1); } ; gbl_statements: { $$ = NULL; } | gbl_statements interfacedec { $$ = append_statement($1, make_statement_reference($2)); } | gbl_statements interfacedef { $$ = append_statement($1, make_statement_type_decl($2)); } | gbl_statements coclass ';' { $$ = $1; reg_type($2, $2->name, 0); } | gbl_statements coclassdef { $$ = append_statement($1, make_statement_type_decl($2)); reg_type($2, $2->name, 0); } | gbl_statements moduledef { $$ = append_statement($1, make_statement_module($2)); } | gbl_statements librarydef { $$ = append_statement($1, make_statement_library($2)); } | gbl_statements statement { $$ = append_statement($1, $2); } ; imp_statements: { $$ = NULL; } | imp_statements interfacedec { $$ = append_statement($1, make_statement_reference($2)); } | imp_statements interfacedef { $$ = append_statement($1, make_statement_type_decl($2)); } | imp_statements coclass ';' { $$ = $1; reg_type($2, $2->name, 0); } | imp_statements coclassdef { $$ = append_statement($1, make_statement_type_decl($2)); reg_type($2, $2->name, 0); } | imp_statements moduledef { $$ = append_statement($1, make_statement_module($2)); } | imp_statements statement { $$ = append_statement($1, $2); } | imp_statements importlib { $$ = append_statement($1, make_statement_importlib($2)); } | imp_statements librarydef { $$ = append_statement($1, make_statement_library($2)); } ; int_statements: { $$ = NULL; } | int_statements statement { $$ = append_statement($1, $2); } ; semicolon_opt: | ';' ; statement: cppquote { $$ = make_statement_cppquote($1); } | typedecl ';' { $$ = make_statement_type_decl($1); } | declaration ';' { $$ = make_statement_declaration($1); } | import { $$ = make_statement_import($1); } | typedef ';' { $$ = $1; } ; typedecl: enumdef | structdef | uniondef | attributes enumdef { $$ = $2; $$->attrs = check_enum_attrs($1); } | attributes structdef { $$ = $2; $$->attrs = check_struct_attrs($1); } | attributes uniondef { $$ = $2; $$->attrs = check_union_attrs($1); } ; cppquote: tCPPQUOTE '(' aSTRING ')' { $$ = $3; } ; import_start: tIMPORT aSTRING ';' { assert(yychar == YYEMPTY); $$ = xmalloc(sizeof(struct _import_t)); $$->name = $2; $$->import_performed = do_import($2); if (!$$->import_performed) yychar = aEOF; } ; import: import_start imp_statements aEOF { $$ = $1->name; if ($1->import_performed) pop_import(); free($1); } ; importlib: tIMPORTLIB '(' aSTRING ')' semicolon_opt { $$ = $3; if(!parse_only) add_importlib($3); } ; libraryhdr: tLIBRARY aIDENTIFIER { $$ = $2; } ; library_start: attributes libraryhdr '{' { $$ = make_library($2, check_library_attrs($2, $1)); if (!parse_only) start_typelib($$); } ; librarydef: library_start imp_statements '}' semicolon_opt { $$ = $1; $$->stmts = $2; if (!parse_only) end_typelib(); } ; m_args: { $$ = NULL; } | args ; no_args: tVOID { $$ = NULL; } ; args: arg { check_arg($1); $$ = append_var( NULL, $1 ); } | args ',' arg { check_arg($3); $$ = append_var( $1, $3); } | no_args ; /* split into two rules to get bison to resolve a tVOID conflict */ arg: attributes decl_spec declarator { $$ = $3->var; $$->attrs = $1; if ($2->stgclass != STG_NONE && $2->stgclass != STG_REGISTER) error_loc("invalid storage class for function parameter\n"); set_type($$, $2, $3, TRUE); free($3); } | decl_spec declarator { $$ = $2->var; if ($1->stgclass != STG_NONE && $1->stgclass != STG_REGISTER) error_loc("invalid storage class for function parameter\n"); set_type($$, $1, $2, TRUE); free($2); } ; array: '[' m_expr ']' { $$ = $2; } | '[' '*' ']' { $$ = make_expr(EXPR_VOID); } ; m_attributes: { $$ = NULL; } | attributes ; attributes: '[' attrib_list ']' { $$ = $2; } ; attrib_list: attribute { $$ = append_attr( NULL, $1 ); } | attrib_list ',' attribute { $$ = append_attr( $1, $3 ); } | attrib_list ']' '[' attribute { $$ = append_attr( $1, $4 ); } ; str_list: aSTRING { $$ = append_str( NULL, $1 ); } | str_list ',' aSTRING { $$ = append_str( $1, $3 ); } ; attribute: { $$ = NULL; } | tAGGREGATABLE { $$ = make_attr(ATTR_AGGREGATABLE); } | tAPPOBJECT { $$ = make_attr(ATTR_APPOBJECT); } | tASYNC { $$ = make_attr(ATTR_ASYNC); } | tAUTOHANDLE { $$ = make_attr(ATTR_AUTO_HANDLE); } | tBINDABLE { $$ = make_attr(ATTR_BINDABLE); } | tBROADCAST { $$ = make_attr(ATTR_BROADCAST); } | tCALLAS '(' ident ')' { $$ = make_attrp(ATTR_CALLAS, $3); } | tCASE '(' expr_list_int_const ')' { $$ = make_attrp(ATTR_CASE, $3); } | tCONTEXTHANDLE { $$ = make_attrv(ATTR_CONTEXTHANDLE, 0); } | tCONTEXTHANDLENOSERIALIZE { $$ = make_attrv(ATTR_CONTEXTHANDLE, 0); /* RPC_CONTEXT_HANDLE_DONT_SERIALIZE */ } | tCONTEXTHANDLESERIALIZE { $$ = make_attrv(ATTR_CONTEXTHANDLE, 0); /* RPC_CONTEXT_HANDLE_SERIALIZE */ } | tCONTROL { $$ = make_attr(ATTR_CONTROL); } | tDEFAULT { $$ = make_attr(ATTR_DEFAULT); } | tDEFAULTCOLLELEM { $$ = make_attr(ATTR_DEFAULTCOLLELEM); } | tDEFAULTVALUE '(' expr_const ')' { $$ = make_attrp(ATTR_DEFAULTVALUE, $3); } | tDEFAULTVTABLE { $$ = make_attr(ATTR_DEFAULTVTABLE); } | tDISPLAYBIND { $$ = make_attr(ATTR_DISPLAYBIND); } | tDLLNAME '(' aSTRING ')' { $$ = make_attrp(ATTR_DLLNAME, $3); } | tDUAL { $$ = make_attr(ATTR_DUAL); } | tENDPOINT '(' str_list ')' { $$ = make_attrp(ATTR_ENDPOINT, $3); } | tENTRY '(' expr_const ')' { $$ = make_attrp(ATTR_ENTRY, $3); } | tEXPLICITHANDLE { $$ = make_attr(ATTR_EXPLICIT_HANDLE); } | tHANDLE { $$ = make_attr(ATTR_HANDLE); } | tHELPCONTEXT '(' expr_int_const ')' { $$ = make_attrp(ATTR_HELPCONTEXT, $3); } | tHELPFILE '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPFILE, $3); } | tHELPSTRING '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPSTRING, $3); } | tHELPSTRINGCONTEXT '(' expr_int_const ')' { $$ = make_attrp(ATTR_HELPSTRINGCONTEXT, $3); } | tHELPSTRINGDLL '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPSTRINGDLL, $3); } | tHIDDEN { $$ = make_attr(ATTR_HIDDEN); } | tID '(' expr_int_const ')' { $$ = make_attrp(ATTR_ID, $3); } | tIDEMPOTENT { $$ = make_attr(ATTR_IDEMPOTENT); } | tIIDIS '(' expr ')' { $$ = make_attrp(ATTR_IIDIS, $3); } | tIMMEDIATEBIND { $$ = make_attr(ATTR_IMMEDIATEBIND); } | tIMPLICITHANDLE '(' tHANDLET aIDENTIFIER ')' { $$ = make_attrp(ATTR_IMPLICIT_HANDLE, $4); } | tIN { $$ = make_attr(ATTR_IN); } | tINPUTSYNC { $$ = make_attr(ATTR_INPUTSYNC); } | tLENGTHIS '(' m_exprs ')' { $$ = make_attrp(ATTR_LENGTHIS, $3); } | tLCID '(' expr_int_const ')' { $$ = make_attrp(ATTR_LIBLCID, $3); } | tLOCAL { $$ = make_attr(ATTR_LOCAL); } | tNONBROWSABLE { $$ = make_attr(ATTR_NONBROWSABLE); } | tNONCREATABLE { $$ = make_attr(ATTR_NONCREATABLE); } | tNONEXTENSIBLE { $$ = make_attr(ATTR_NONEXTENSIBLE); } | tOBJECT { $$ = make_attr(ATTR_OBJECT); } | tODL { $$ = make_attr(ATTR_ODL); } | tOLEAUTOMATION { $$ = make_attr(ATTR_OLEAUTOMATION); } | tOPTIONAL { $$ = make_attr(ATTR_OPTIONAL); } | tOUT { $$ = make_attr(ATTR_OUT); } | tPOINTERDEFAULT '(' pointer_type ')' { $$ = make_attrv(ATTR_POINTERDEFAULT, $3); } | tPROPGET { $$ = make_attr(ATTR_PROPGET); } | tPROPPUT { $$ = make_attr(ATTR_PROPPUT); } | tPROPPUTREF { $$ = make_attr(ATTR_PROPPUTREF); } | tPUBLIC { $$ = make_attr(ATTR_PUBLIC); } | tRANGE '(' expr_int_const ',' expr_int_const ')' { expr_list_t *list = append_expr( NULL, $3 ); list = append_expr( list, $5 ); $$ = make_attrp(ATTR_RANGE, list); } | tREADONLY { $$ = make_attr(ATTR_READONLY); } | tREQUESTEDIT { $$ = make_attr(ATTR_REQUESTEDIT); } | tRESTRICTED { $$ = make_attr(ATTR_RESTRICTED); } | tRETVAL { $$ = make_attr(ATTR_RETVAL); } | tSIZEIS '(' m_exprs ')' { $$ = make_attrp(ATTR_SIZEIS, $3); } | tSOURCE { $$ = make_attr(ATTR_SOURCE); } | tSTRICTCONTEXTHANDLE { $$ = make_attr(ATTR_STRICTCONTEXTHANDLE); } | tSTRING { $$ = make_attr(ATTR_STRING); } | tSWITCHIS '(' expr ')' { $$ = make_attrp(ATTR_SWITCHIS, $3); } | tSWITCHTYPE '(' type ')' { $$ = make_attrp(ATTR_SWITCHTYPE, $3); } | tTRANSMITAS '(' type ')' { $$ = make_attrp(ATTR_TRANSMITAS, $3); } | tUUID '(' uuid_string ')' { $$ = make_attrp(ATTR_UUID, $3); } | tV1ENUM { $$ = make_attr(ATTR_V1ENUM); } | tVARARG { $$ = make_attr(ATTR_VARARG); } | tVERSION '(' version ')' { $$ = make_attrv(ATTR_VERSION, $3); } | tWIREMARSHAL '(' type ')' { $$ = make_attrp(ATTR_WIREMARSHAL, $3); } | pointer_type { $$ = make_attrv(ATTR_POINTERTYPE, $1); } ; uuid_string: aUUID | aSTRING { if (!is_valid_uuid($1)) error_loc("invalid UUID: %s\n", $1); $$ = parse_uuid($1); } ; callconv: tCDECL { $$ = $1; } | tFASTCALL { $$ = $1; } | tPASCAL { $$ = $1; } | tSTDCALL { $$ = $1; } ; cases: { $$ = NULL; } | cases case { $$ = append_var( $1, $2 ); } ; case: tCASE expr_int_const ':' union_field { attr_t *a = make_attrp(ATTR_CASE, append_expr( NULL, $2 )); $$ = $4; if (!$$) $$ = make_var(NULL); $$->attrs = append_attr( $$->attrs, a ); } | tDEFAULT ':' union_field { attr_t *a = make_attr(ATTR_DEFAULT); $$ = $3; if (!$$) $$ = make_var(NULL); $$->attrs = append_attr( $$->attrs, a ); } ; enums: { $$ = NULL; } | enum_list ',' { $$ = $1; } | enum_list ; enum_list: enum { if (!$1->eval) $1->eval = make_exprl(EXPR_NUM, 0 /* default for first enum entry */); $$ = append_var( NULL, $1 ); } | enum_list ',' enum { if (!$3->eval) { var_t *last = LIST_ENTRY( list_tail($$), var_t, entry ); $3->eval = make_exprl(EXPR_NUM, last->eval->cval + 1); } $$ = append_var( $1, $3 ); } ; enum: ident '=' expr_int_const { $$ = reg_const($1); $$->eval = $3; $$->type = type_new_int(TYPE_BASIC_INT, 0); } | ident { $$ = reg_const($1); $$->type = type_new_int(TYPE_BASIC_INT, 0); } ; enumdef: tENUM t_ident '{' enums '}' { $$ = type_new_enum($2, TRUE, $4); } ; m_exprs: m_expr { $$ = append_expr( NULL, $1 ); } | m_exprs ',' m_expr { $$ = append_expr( $1, $3 ); } ; /* exprs: { $$ = make_expr(EXPR_VOID); } | expr_list ; expr_list: expr | expr_list ',' expr { LINK($3, $1); $$ = $3; } ; */ m_expr: { $$ = make_expr(EXPR_VOID); } | expr ; expr: aNUM { $$ = make_exprl(EXPR_NUM, $1); } | aHEXNUM { $$ = make_exprl(EXPR_HEXNUM, $1); } | aDOUBLE { $$ = make_exprd(EXPR_DOUBLE, $1); } | tFALSE { $$ = make_exprl(EXPR_TRUEFALSE, 0); } | tNULL { $$ = make_exprl(EXPR_NUM, 0); } | tTRUE { $$ = make_exprl(EXPR_TRUEFALSE, 1); } | aSTRING { $$ = make_exprs(EXPR_STRLIT, $1); } | aWSTRING { $$ = make_exprs(EXPR_WSTRLIT, $1); } | aIDENTIFIER { $$ = make_exprs(EXPR_IDENTIFIER, $1); } | expr '?' expr ':' expr { $$ = make_expr3(EXPR_COND, $1, $3, $5); } | expr LOGICALOR expr { $$ = make_expr2(EXPR_LOGOR, $1, $3); } | expr LOGICALAND expr { $$ = make_expr2(EXPR_LOGAND, $1, $3); } | expr '|' expr { $$ = make_expr2(EXPR_OR , $1, $3); } | expr '^' expr { $$ = make_expr2(EXPR_XOR, $1, $3); } | expr '&' expr { $$ = make_expr2(EXPR_AND, $1, $3); } | expr EQUALITY expr { $$ = make_expr2(EXPR_EQUALITY, $1, $3); } | expr INEQUALITY expr { $$ = make_expr2(EXPR_INEQUALITY, $1, $3); } | expr '>' expr { $$ = make_expr2(EXPR_GTR, $1, $3); } | expr '<' expr { $$ = make_expr2(EXPR_LESS, $1, $3); } | expr GREATEREQUAL expr { $$ = make_expr2(EXPR_GTREQL, $1, $3); } | expr LESSEQUAL expr { $$ = make_expr2(EXPR_LESSEQL, $1, $3); } | expr SHL expr { $$ = make_expr2(EXPR_SHL, $1, $3); } | expr SHR expr { $$ = make_expr2(EXPR_SHR, $1, $3); } | expr '+' expr { $$ = make_expr2(EXPR_ADD, $1, $3); } | expr '-' expr { $$ = make_expr2(EXPR_SUB, $1, $3); } | expr '%' expr { $$ = make_expr2(EXPR_MOD, $1, $3); } | expr '*' expr { $$ = make_expr2(EXPR_MUL, $1, $3); } | expr '/' expr { $$ = make_expr2(EXPR_DIV, $1, $3); } | '!' expr { $$ = make_expr1(EXPR_LOGNOT, $2); } | '~' expr { $$ = make_expr1(EXPR_NOT, $2); } | '+' expr %prec POS { $$ = make_expr1(EXPR_POS, $2); } | '-' expr %prec NEG { $$ = make_expr1(EXPR_NEG, $2); } | '&' expr %prec ADDRESSOF { $$ = make_expr1(EXPR_ADDRESSOF, $2); } | '*' expr %prec PPTR { $$ = make_expr1(EXPR_PPTR, $2); } | expr MEMBERPTR aIDENTIFIER { $$ = make_expr2(EXPR_MEMBER, make_expr1(EXPR_PPTR, $1), make_exprs(EXPR_IDENTIFIER, $3)); } | expr '.' aIDENTIFIER { $$ = make_expr2(EXPR_MEMBER, $1, make_exprs(EXPR_IDENTIFIER, $3)); } | '(' type ')' expr %prec CAST { $$ = make_exprt(EXPR_CAST, $2, $4); } | tSIZEOF '(' type ')' { $$ = make_exprt(EXPR_SIZEOF, $3, NULL); } | expr '[' expr ']' { $$ = make_expr2(EXPR_ARRAY, $1, $3); } | '(' expr ')' { $$ = $2; } ; expr_list_int_const: expr_int_const { $$ = append_expr( NULL, $1 ); } | expr_list_int_const ',' expr_int_const { $$ = append_expr( $1, $3 ); } ; expr_int_const: expr { $$ = $1; if (!$$->is_const) error_loc("expression is not an integer constant\n"); } ; expr_const: expr { $$ = $1; if (!$$->is_const && $$->type != EXPR_STRLIT && $$->type != EXPR_WSTRLIT) error_loc("expression is not constant\n"); } ; fields: { $$ = NULL; } | fields field { $$ = append_var_list($1, $2); } ; field: m_attributes decl_spec declarator_list ';' { const char *first = LIST_ENTRY(list_head($3), declarator_t, entry)->var->name; check_field_attrs(first, $1); $$ = set_var_types($1, $2, $3); } | m_attributes uniondef ';' { var_t *v = make_var(NULL); v->type = $2; v->attrs = $1; $$ = append_var(NULL, v); } ; ne_union_field: s_field ';' { $$ = $1; } | attributes ';' { $$ = make_var(NULL); $$->attrs = $1; } ; ne_union_fields: { $$ = NULL; } | ne_union_fields ne_union_field { $$ = append_var( $1, $2 ); } ; union_field: s_field ';' { $$ = $1; } | ';' { $$ = NULL; } ; s_field: m_attributes decl_spec declarator { $$ = $3->var; $$->attrs = check_field_attrs($$->name, $1); set_type($$, $2, $3, FALSE); free($3); } ; funcdef: m_attributes decl_spec declarator { var_t *v = $3->var; v->attrs = check_function_attrs(v->name, $1); set_type(v, $2, $3, FALSE); free($3); $$ = make_func(v); } ; declaration: attributes decl_spec init_declarator { $$ = $3->var; $$->attrs = $1; set_type($$, $2, $3, FALSE); free($3); } | decl_spec init_declarator { $$ = $2->var; set_type($$, $1, $2, FALSE); free($2); } ; m_ident: { $$ = NULL; } | ident ; t_ident: { $$ = NULL; } | aIDENTIFIER { $$ = $1; } | aKNOWNTYPE { $$ = $1; } ; ident: aIDENTIFIER { $$ = make_var($1); } /* some "reserved words" used in attributes are also used as field names in some MS IDL files */ | aKNOWNTYPE { $$ = make_var($1); } ; base_type: tBYTE { $$ = find_type_or_error($1, 0); } | tWCHAR { $$ = find_type_or_error($1, 0); } | int_std | tSIGNED int_std { $$ = type_new_int(type_basic_get_type($2), -1); } | tUNSIGNED int_std { $$ = type_new_int(type_basic_get_type($2), 1); } | tUNSIGNED { $$ = type_new_int(TYPE_BASIC_INT, 1); } | tFLOAT { $$ = find_type_or_error($1, 0); } | tDOUBLE { $$ = find_type_or_error($1, 0); } | tBOOLEAN { $$ = find_type_or_error($1, 0); } | tERRORSTATUST { $$ = find_type_or_error($1, 0); } | tHANDLET { $$ = find_type_or_error($1, 0); } ; m_int: | tINT ; int_std: tINT { $$ = type_new_int(TYPE_BASIC_INT, 0); } | tSHORT m_int { $$ = type_new_int(TYPE_BASIC_INT16, 0); } | tSMALL { $$ = type_new_int(TYPE_BASIC_INT8, 0); } | tLONG m_int { $$ = type_new_int(TYPE_BASIC_INT32, 0); } | tHYPER m_int { $$ = type_new_int(TYPE_BASIC_HYPER, 0); } | tINT64 { $$ = type_new_int(TYPE_BASIC_INT64, 0); } | tCHAR { $$ = type_new_int(TYPE_BASIC_CHAR, 0); } ; coclass: tCOCLASS aIDENTIFIER { $$ = type_new_coclass($2); } | tCOCLASS aKNOWNTYPE { $$ = find_type($2, 0); if (type_get_type_detect_alias($$) != TYPE_COCLASS) error_loc("%s was not declared a coclass at %s:%d\n", $2, $$->loc_info.input_name, $$->loc_info.line_number); } ; coclasshdr: attributes coclass { $$ = $2; check_def($$); $$->attrs = check_coclass_attrs($2->name, $1); } ; coclassdef: coclasshdr '{' coclass_ints '}' semicolon_opt { $$ = type_coclass_define($1, $3); } ; coclass_ints: { $$ = NULL; } | coclass_ints coclass_int { $$ = append_ifref( $1, $2 ); } ; coclass_int: m_attributes interfacedec { $$ = make_ifref($2); $$->attrs = $1; } ; dispinterface: tDISPINTERFACE aIDENTIFIER { $$ = get_type(TYPE_INTERFACE, $2, 0); } | tDISPINTERFACE aKNOWNTYPE { $$ = get_type(TYPE_INTERFACE, $2, 0); } ; dispinterfacehdr: attributes dispinterface { attr_t *attrs; is_object_interface = TRUE; $$ = $2; check_def($$); attrs = make_attr(ATTR_DISPINTERFACE); $$->attrs = append_attr( check_dispiface_attrs($2->name, $1), attrs ); $$->defined = TRUE; } ; dispint_props: tPROPERTIES ':' { $$ = NULL; } | dispint_props s_field ';' { $$ = append_var( $1, $2 ); } ; dispint_meths: tMETHODS ':' { $$ = NULL; } | dispint_meths funcdef ';' { $$ = append_func( $1, $2 ); } ; dispinterfacedef: dispinterfacehdr '{' dispint_props dispint_meths '}' { $$ = $1; type_dispinterface_define($$, $3, $4); } | dispinterfacehdr '{' interface ';' '}' { $$ = $1; type_dispinterface_define_from_iface($$, $3); } ; inherit: { $$ = NULL; } | ':' aKNOWNTYPE { $$ = find_type_or_error2($2, 0); } ; interface: tINTERFACE aIDENTIFIER { $$ = get_type(TYPE_INTERFACE, $2, 0); } | tINTERFACE aKNOWNTYPE { $$ = get_type(TYPE_INTERFACE, $2, 0); } ; interfacehdr: attributes interface { $$.interface = $2; $$.old_pointer_default = pointer_default; if (is_attr($1, ATTR_POINTERDEFAULT)) pointer_default = get_attrv($1, ATTR_POINTERDEFAULT); is_object_interface = is_object($1); check_def($2); $2->attrs = check_iface_attrs($2->name, $1); $2->defined = TRUE; } ; interfacedef: interfacehdr inherit '{' int_statements '}' semicolon_opt { $$ = $1.interface; type_interface_define($$, $2, $4); pointer_default = $1.old_pointer_default; } /* MIDL is able to import the definition of a base class from inside the * definition of a derived class, I'll try to support it with this rule */ | interfacehdr ':' aIDENTIFIER '{' import int_statements '}' semicolon_opt { $$ = $1.interface; type_interface_define($$, find_type_or_error2($3, 0), $6); pointer_default = $1.old_pointer_default; } | dispinterfacedef semicolon_opt { $$ = $1; } ; interfacedec: interface ';' { $$ = $1; } | dispinterface ';' { $$ = $1; } ; module: tMODULE aIDENTIFIER { $$ = type_new_module($2); } | tMODULE aKNOWNTYPE { $$ = type_new_module($2); } ; modulehdr: attributes module { $$ = $2; $$->attrs = check_module_attrs($2->name, $1); } ; moduledef: modulehdr '{' int_statements '}' semicolon_opt { $$ = $1; type_module_define($$, $3); } ; storage_cls_spec: tEXTERN { $$ = STG_EXTERN; } | tSTATIC { $$ = STG_STATIC; } | tREGISTER { $$ = STG_REGISTER; } ; function_specifier: tINLINE { $$ = make_attr(ATTR_INLINE); } ; type_qualifier: tCONST { $$ = make_attr(ATTR_CONST); } ; m_type_qual_list: { $$ = NULL; } | m_type_qual_list type_qualifier { $$ = append_attr($1, $2); } ; decl_spec: type m_decl_spec_no_type { $$ = make_decl_spec($1, $2, NULL, NULL, STG_NONE); } | decl_spec_no_type type m_decl_spec_no_type { $$ = make_decl_spec($2, $1, $3, NULL, STG_NONE); } ; m_decl_spec_no_type: { $$ = NULL; } | decl_spec_no_type ; decl_spec_no_type: type_qualifier m_decl_spec_no_type { $$ = make_decl_spec(NULL, $2, NULL, $1, STG_NONE); } | function_specifier m_decl_spec_no_type { $$ = make_decl_spec(NULL, $2, NULL, $1, STG_NONE); } | storage_cls_spec m_decl_spec_no_type { $$ = make_decl_spec(NULL, $2, NULL, NULL, $1); } ; declarator: '*' m_type_qual_list declarator %prec PPTR { $$ = $3; $$->type = append_ptrchain_type($$->type, type_new_pointer(pointer_default, NULL, $2)); } | callconv declarator { $$ = $2; $$->type->attrs = append_attr($$->type->attrs, make_attrp(ATTR_CALLCONV, $1)); } | direct_declarator ; direct_declarator: ident { $$ = make_declarator($1); } | '(' declarator ')' { $$ = $2; } | direct_declarator array { $$ = $1; $$->array = append_array($$->array, $2); } | direct_declarator '(' m_args ')' { $$ = $1; $$->func_type = append_ptrchain_type($$->type, type_new_function($3)); $$->type = NULL; } ; declarator_list: declarator { $$ = append_declarator( NULL, $1 ); } | declarator_list ',' declarator { $$ = append_declarator( $1, $3 ); } ; init_declarator: declarator { $$ = $1; } | declarator '=' expr_const { $$ = $1; $1->var->eval = $3; } ; pointer_type: tREF { $$ = RPC_FC_RP; } | tUNIQUE { $$ = RPC_FC_UP; } | tPTR { $$ = RPC_FC_FP; } ; structdef: tSTRUCT t_ident '{' fields '}' { $$ = type_new_struct($2, TRUE, $4); } ; type: tVOID { $$ = type_new_void(); } | aKNOWNTYPE { $$ = find_type_or_error($1, 0); } | base_type { $$ = $1; } | enumdef { $$ = $1; } | tENUM aIDENTIFIER { $$ = type_new_enum($2, FALSE, NULL); } | structdef { $$ = $1; } | tSTRUCT aIDENTIFIER { $$ = type_new_struct($2, FALSE, NULL); } | uniondef { $$ = $1; } | tUNION aIDENTIFIER { $$ = type_new_nonencapsulated_union($2, FALSE, NULL); } | tSAFEARRAY '(' type ')' { $$ = make_safearray($3); } ; typedef: tTYPEDEF m_attributes decl_spec declarator_list { reg_typedefs($3, $4, check_typedef_attrs($2)); $$ = make_statement_typedef($4); } ; uniondef: tUNION t_ident '{' ne_union_fields '}' { $$ = type_new_nonencapsulated_union($2, TRUE, $4); } | tUNION t_ident tSWITCH '(' s_field ')' m_ident '{' cases '}' { $$ = type_new_encapsulated_union($2, $5, $7, $9); } ; version: aNUM { $$ = MAKEVERSION($1, 0); } | aNUM '.' aNUM { $$ = MAKEVERSION($1, $3); } ; %% static void decl_builtin_basic(const char *name, enum type_basic_type type) { type_t *t = type_new_basic(type); reg_type(t, name, 0); } static void decl_builtin_alias(const char *name, type_t *t) { reg_type(type_new_alias(t, name), name, 0); } void init_types(void) { decl_builtin_basic("byte", TYPE_BASIC_BYTE); decl_builtin_basic("wchar_t", TYPE_BASIC_WCHAR); decl_builtin_basic("float", TYPE_BASIC_FLOAT); decl_builtin_basic("double", TYPE_BASIC_DOUBLE); decl_builtin_basic("error_status_t", TYPE_BASIC_ERROR_STATUS_T); decl_builtin_basic("handle_t", TYPE_BASIC_HANDLE); decl_builtin_alias("boolean", type_new_basic(TYPE_BASIC_BYTE)); } static str_list_t *append_str(str_list_t *list, char *str) { struct str_list_entry_t *entry; if (!str) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } entry = xmalloc( sizeof(*entry) ); entry->str = str; list_add_tail( list, &entry->entry ); return list; } static attr_list_t *append_attr(attr_list_t *list, attr_t *attr) { attr_t *attr_existing; if (!attr) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } LIST_FOR_EACH_ENTRY(attr_existing, list, attr_t, entry) if (attr_existing->type == attr->type) { parser_warning("duplicate attribute %s\n", get_attr_display_name(attr->type)); /* use the last attribute, like MIDL does */ list_remove(&attr_existing->entry); break; } list_add_tail( list, &attr->entry ); return list; } static attr_list_t *move_attr(attr_list_t *dst, attr_list_t *src, enum attr_type type) { attr_t *attr; if (!src) return dst; LIST_FOR_EACH_ENTRY(attr, src, attr_t, entry) if (attr->type == type) { list_remove(&attr->entry); return append_attr(dst, attr); } return dst; } static attr_list_t *append_attr_list(attr_list_t *new_list, attr_list_t *old_list) { struct list *entry; if (!old_list) return new_list; while ((entry = list_head(old_list))) { attr_t *attr = LIST_ENTRY(entry, attr_t, entry); list_remove(entry); new_list = append_attr(new_list, attr); } return new_list; } static attr_list_t *dupattrs(const attr_list_t *list) { attr_list_t *new_list; const attr_t *attr; if (!list) return NULL; new_list = xmalloc( sizeof(*list) ); list_init( new_list ); LIST_FOR_EACH_ENTRY(attr, list, const attr_t, entry) { attr_t *new_attr = xmalloc(sizeof(*new_attr)); *new_attr = *attr; list_add_tail(new_list, &new_attr->entry); } return new_list; } static decl_spec_t *make_decl_spec(type_t *type, decl_spec_t *left, decl_spec_t *right, attr_t *attr, enum storage_class stgclass) { decl_spec_t *declspec = left ? left : right; if (!declspec) { declspec = xmalloc(sizeof(*declspec)); declspec->type = NULL; declspec->attrs = NULL; declspec->stgclass = STG_NONE; } declspec->type = type; if (left && declspec != left) { declspec->attrs = append_attr_list(declspec->attrs, left->attrs); if (declspec->stgclass == STG_NONE) declspec->stgclass = left->stgclass; else if (left->stgclass != STG_NONE) error_loc("only one storage class can be specified\n"); assert(!left->type); free(left); } if (right && declspec != right) { declspec->attrs = append_attr_list(declspec->attrs, right->attrs); if (declspec->stgclass == STG_NONE) declspec->stgclass = right->stgclass; else if (right->stgclass != STG_NONE) error_loc("only one storage class can be specified\n"); assert(!right->type); free(right); } declspec->attrs = append_attr(declspec->attrs, attr); if (declspec->stgclass == STG_NONE) declspec->stgclass = stgclass; else if (stgclass != STG_NONE) error_loc("only one storage class can be specified\n"); /* apply attributes to type */ if (type && declspec->attrs) { attr_list_t *attrs; declspec->type = duptype(type, 1); attrs = dupattrs(type->attrs); declspec->type->attrs = append_attr_list(attrs, declspec->attrs); declspec->attrs = NULL; } return declspec; } static attr_t *make_attr(enum attr_type type) { attr_t *a = xmalloc(sizeof(attr_t)); a->type = type; a->u.ival = 0; return a; } static attr_t *make_attrv(enum attr_type type, unsigned long val) { attr_t *a = xmalloc(sizeof(attr_t)); a->type = type; a->u.ival = val; return a; } static attr_t *make_attrp(enum attr_type type, void *val) { attr_t *a = xmalloc(sizeof(attr_t)); a->type = type; a->u.pval = val; return a; } static expr_list_t *append_expr(expr_list_t *list, expr_t *expr) { if (!expr) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_add_tail( list, &expr->entry ); return list; } static array_dims_t *append_array(array_dims_t *list, expr_t *expr) { if (!expr) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_add_tail( list, &expr->entry ); return list; } static struct list type_pool = LIST_INIT(type_pool); typedef struct { type_t data; struct list link; } type_pool_node_t; type_t *alloc_type(void) { type_pool_node_t *node = xmalloc(sizeof *node); list_add_tail(&type_pool, &node->link); return &node->data; } void set_all_tfswrite(int val) { type_pool_node_t *node; LIST_FOR_EACH_ENTRY(node, &type_pool, type_pool_node_t, link) node->data.tfswrite = val; } void clear_all_offsets(void) { type_pool_node_t *node; LIST_FOR_EACH_ENTRY(node, &type_pool, type_pool_node_t, link) node->data.typestring_offset = node->data.ptrdesc = 0; } static void type_function_add_head_arg(type_t *type, var_t *arg) { if (!type->details.function->args) { type->details.function->args = xmalloc( sizeof(*type->details.function->args) ); list_init( type->details.function->args ); } list_add_head( type->details.function->args, &arg->entry ); } static type_t *append_ptrchain_type(type_t *ptrchain, type_t *type) { type_t *ptrchain_type; if (!ptrchain) return type; for (ptrchain_type = ptrchain; type_pointer_get_ref(ptrchain_type); ptrchain_type = type_pointer_get_ref(ptrchain_type)) ; assert(ptrchain_type->type_type == TYPE_POINTER); ptrchain_type->details.pointer.ref = type; return ptrchain; } static void set_type(var_t *v, decl_spec_t *decl_spec, const declarator_t *decl, int top) { expr_list_t *sizes = get_attrp(v->attrs, ATTR_SIZEIS); expr_list_t *lengs = get_attrp(v->attrs, ATTR_LENGTHIS); int sizeless; expr_t *dim; type_t **ptype; array_dims_t *arr = decl ? decl->array : NULL; type_t *func_type = decl ? decl->func_type : NULL; type_t *type = decl_spec->type; if (is_attr(type->attrs, ATTR_INLINE)) { if (!func_type) error_loc("inline attribute applied to non-function type\n"); else { type_t *t; /* move inline attribute from return type node to function node */ for (t = func_type; is_ptr(t); t = type_pointer_get_ref(t)) ; t->attrs = move_attr(t->attrs, type->attrs, ATTR_INLINE); } } /* add type onto the end of the pointers in pident->type */ v->type = append_ptrchain_type(decl ? decl->type : NULL, type); v->stgclass = decl_spec->stgclass; /* check for pointer attribute being applied to non-pointer, non-array * type */ if (!arr) { int ptr_attr = get_attrv(v->attrs, ATTR_POINTERTYPE); const type_t *ptr = NULL; /* pointer attributes on the left side of the type belong to the function * pointer, if one is being declared */ type_t **pt = func_type ? &func_type : &v->type; for (ptr = *pt; ptr && !ptr_attr; ) { ptr_attr = get_attrv(ptr->attrs, ATTR_POINTERTYPE); if (!ptr_attr && type_is_alias(ptr)) ptr = type_alias_get_aliasee(ptr); else break; } if (is_ptr(ptr)) { if (ptr_attr && ptr_attr != RPC_FC_UP && type_get_type(type_pointer_get_ref(ptr)) == TYPE_INTERFACE) warning_loc_info(&v->loc_info, "%s: pointer attribute applied to interface " "pointer type has no effect\n", v->name); if (!ptr_attr && top && (*pt)->details.pointer.def_fc != RPC_FC_RP) { /* FIXME: this is a horrible hack to cope with the issue that we * store an offset to the typeformat string in the type object, but * two typeformat strings may be written depending on whether the * pointer is a toplevel parameter or not */ *pt = duptype(*pt, 1); } } else if (ptr_attr) error_loc("%s: pointer attribute applied to non-pointer type\n", v->name); } if (is_attr(v->attrs, ATTR_STRING) && !is_ptr(v->type) && !arr) error_loc("'%s': [string] attribute applied to non-pointer, non-array type\n", v->name); if (is_attr(v->attrs, ATTR_V1ENUM)) { if (type_get_type_detect_alias(v->type) != TYPE_ENUM) error_loc("'%s': [v1_enum] attribute applied to non-enum type\n", v->name); } ptype = &v->type; sizeless = FALSE; if (arr) LIST_FOR_EACH_ENTRY_REV(dim, arr, expr_t, entry) { if (sizeless) error_loc("%s: only the first array dimension can be unspecified\n", v->name); if (dim->is_const) { if (dim->cval <= 0) error_loc("%s: array dimension must be positive\n", v->name); /* FIXME: should use a type_memsize that allows us to pass in a pointer size */ if (0) { unsigned int align = 0; unsigned int size = type_memsize(v->type, &align); if (0xffffffffu / size < dim->cval) error_loc("%s: total array size is too large\n", v->name); } } else sizeless = TRUE; *ptype = type_new_array(NULL, *ptype, FALSE, dim->is_const ? dim->cval : 0, dim->is_const ? NULL : dim, NULL, pointer_default); } ptype = &v->type; if (sizes) LIST_FOR_EACH_ENTRY(dim, sizes, expr_t, entry) { if (dim->type != EXPR_VOID) { if (is_array(*ptype)) { if (type_array_get_conformance(*ptype)->is_const) error_loc("%s: cannot specify size_is for a fixed sized array\n", v->name); else *ptype = type_new_array((*ptype)->name, type_array_get_element(*ptype), FALSE, 0, dim, NULL, 0); } else if (is_ptr(*ptype)) *ptype = type_new_array((*ptype)->name, type_pointer_get_ref(*ptype), TRUE, 0, dim, NULL, pointer_default); else error_loc("%s: size_is attribute applied to illegal type\n", v->name); } if (is_ptr(*ptype)) ptype = &(*ptype)->details.pointer.ref; else if (is_array(*ptype)) ptype = &(*ptype)->details.array.elem; else error_loc("%s: too many expressions in size_is attribute\n", v->name); } ptype = &v->type; if (lengs) LIST_FOR_EACH_ENTRY(dim, lengs, expr_t, entry) { if (dim->type != EXPR_VOID) { if (is_array(*ptype)) { *ptype = type_new_array((*ptype)->name, type_array_get_element(*ptype), type_array_is_decl_as_ptr(*ptype), type_array_get_dim(*ptype), type_array_get_conformance(*ptype), dim, type_array_get_ptr_default_fc(*ptype)); } else error_loc("%s: length_is attribute applied to illegal type\n", v->name); } if (is_ptr(*ptype)) ptype = &(*ptype)->details.pointer.ref; else if (is_array(*ptype)) ptype = &(*ptype)->details.array.elem; else error_loc("%s: too many expressions in length_is attribute\n", v->name); } /* v->type is currently pointing to the type on the left-side of the * declaration, so we need to fix this up so that it is the return type of the * function and make v->type point to the function side of the declaration */ if (func_type) { type_t *ft, *t; type_t *return_type = v->type; v->type = func_type; for (ft = v->type; is_ptr(ft); ft = type_pointer_get_ref(ft)) ; assert(type_get_type_detect_alias(ft) == TYPE_FUNCTION); ft->details.function->rettype = return_type; /* move calling convention attribute, if present, from pointer nodes to * function node */ for (t = v->type; is_ptr(t); t = type_pointer_get_ref(t)) ft->attrs = move_attr(ft->attrs, t->attrs, ATTR_CALLCONV); if (is_object_interface && !is_attr(ft->attrs, ATTR_CALLCONV)) { static char *stdmethodcalltype; if (!stdmethodcalltype) stdmethodcalltype = strdup("STDMETHODCALLTYPE"); ft->attrs = append_attr(NULL, make_attrp(ATTR_CALLCONV, stdmethodcalltype)); } } else { type_t *t; for (t = v->type; is_ptr(t); t = type_pointer_get_ref(t)) if (is_attr(t->attrs, ATTR_CALLCONV)) error_loc("calling convention applied to non-function-pointer type\n"); } } static var_list_t *set_var_types(attr_list_t *attrs, decl_spec_t *decl_spec, declarator_list_t *decls) { declarator_t *decl, *next; var_list_t *var_list = NULL; LIST_FOR_EACH_ENTRY_SAFE( decl, next, decls, declarator_t, entry ) { var_t *var = decl->var; var->attrs = attrs; set_type(var, decl_spec, decl, 0); var_list = append_var(var_list, var); free(decl); } return var_list; } static ifref_list_t *append_ifref(ifref_list_t *list, ifref_t *iface) { if (!iface) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_add_tail( list, &iface->entry ); return list; } static ifref_t *make_ifref(type_t *iface) { ifref_t *l = xmalloc(sizeof(ifref_t)); l->iface = iface; l->attrs = NULL; return l; } var_list_t *append_var(var_list_t *list, var_t *var) { if (!var) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_add_tail( list, &var->entry ); return list; } static var_list_t *append_var_list(var_list_t *list, var_list_t *vars) { if (!vars) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_move_tail( list, vars ); return list; } var_t *make_var(char *name) { var_t *v = xmalloc(sizeof(var_t)); v->name = name; v->type = NULL; v->attrs = NULL; v->eval = NULL; v->stgclass = STG_NONE; init_loc_info(&v->loc_info); return v; } static declarator_list_t *append_declarator(declarator_list_t *list, declarator_t *d) { if (!d) return list; if (!list) { list = xmalloc(sizeof(*list)); list_init(list); } list_add_tail(list, &d->entry); return list; } static declarator_t *make_declarator(var_t *var) { declarator_t *d = xmalloc(sizeof(*d)); d->var = var; d->type = NULL; d->func_type = NULL; d->array = NULL; return d; } static func_list_t *append_func(func_list_t *list, func_t *func) { if (!func) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_add_tail( list, &func->entry ); return list; } static func_t *make_func(var_t *def) { func_t *f = xmalloc(sizeof(func_t)); f->def = def; return f; } static type_t *make_safearray(type_t *type) { return type_new_array(NULL, type_new_alias(type, "SAFEARRAY"), TRUE, 0, NULL, NULL, RPC_FC_RP); } static typelib_t *make_library(const char *name, const attr_list_t *attrs) { typelib_t *typelib = xmalloc(sizeof(*typelib)); typelib->name = xstrdup(name); typelib->filename = NULL; typelib->attrs = attrs; list_init( &typelib->importlibs ); return typelib; } #define HASHMAX 64 static int hash_ident(const char *name) { const char *p = name; int sum = 0; /* a simple sum hash is probably good enough */ while (*p) { sum += *p; p++; } return sum & (HASHMAX-1); } /***** type repository *****/ struct rtype { const char *name; type_t *type; int t; struct rtype *next; }; struct rtype *type_hash[HASHMAX]; type_t *reg_type(type_t *type, const char *name, int t) { struct rtype *nt; int hash; if (!name) { error_loc("registering named type without name\n"); return type; } hash = hash_ident(name); nt = xmalloc(sizeof(struct rtype)); nt->name = name; nt->type = type; nt->t = t; nt->next = type_hash[hash]; type_hash[hash] = nt; if ((t == tsSTRUCT || t == tsUNION)) fix_incomplete_types(type); return type; } static int is_incomplete(const type_t *t) { return !t->defined && (type_get_type_detect_alias(t) == TYPE_STRUCT || type_get_type_detect_alias(t) == TYPE_UNION || type_get_type_detect_alias(t) == TYPE_ENCAPSULATED_UNION); } void add_incomplete(type_t *t) { struct typenode *tn = xmalloc(sizeof *tn); tn->type = t; list_add_tail(&incomplete_types, &tn->entry); } static void fix_type(type_t *t) { if (type_is_alias(t) && is_incomplete(t)) { type_t *ot = type_alias_get_aliasee(t); fix_type(ot); if (type_get_type_detect_alias(ot) == TYPE_STRUCT || type_get_type_detect_alias(ot) == TYPE_UNION || type_get_type_detect_alias(ot) == TYPE_ENCAPSULATED_UNION) t->details.structure = ot->details.structure; t->defined = ot->defined; } } static void fix_incomplete(void) { struct typenode *tn, *next; LIST_FOR_EACH_ENTRY_SAFE(tn, next, &incomplete_types, struct typenode, entry) { fix_type(tn->type); list_remove(&tn->entry); free(tn); } } static void fix_incomplete_types(type_t *complete_type) { struct typenode *tn, *next; LIST_FOR_EACH_ENTRY_SAFE(tn, next, &incomplete_types, struct typenode, entry) { if (type_is_equal(complete_type, tn->type)) { tn->type->details.structure = complete_type->details.structure; list_remove(&tn->entry); free(tn); } } } static type_t *reg_typedefs(decl_spec_t *decl_spec, declarator_list_t *decls, attr_list_t *attrs) { const declarator_t *decl; int is_str = is_attr(attrs, ATTR_STRING); type_t *type = decl_spec->type; if (is_str) { type_t *t = decl_spec->type; while (is_ptr(t)) t = type_pointer_get_ref(t); if (type_get_type(t) != TYPE_BASIC && (get_basic_fc(t) != RPC_FC_CHAR && get_basic_fc(t) != RPC_FC_BYTE && get_basic_fc(t) != RPC_FC_WCHAR)) { decl = LIST_ENTRY( list_head( decls ), const declarator_t, entry ); error_loc("'%s': [string] attribute is only valid on 'char', 'byte', or 'wchar_t' pointers and arrays\n", decl->var->name); } } /* We must generate names for tagless enum, struct or union. Typedef-ing a tagless enum, struct or union means we want the typedef to be included in a library hence the public attribute. */ if ((type_get_type_detect_alias(type) == TYPE_ENUM || type_get_type_detect_alias(type) == TYPE_STRUCT || type_get_type_detect_alias(type) == TYPE_UNION || type_get_type_detect_alias(type) == TYPE_ENCAPSULATED_UNION) && !type->name && !parse_only) { if (! is_attr(attrs, ATTR_PUBLIC)) attrs = append_attr( attrs, make_attr(ATTR_PUBLIC) ); type->name = gen_name(); } else if (is_attr(attrs, ATTR_UUID) && !is_attr(attrs, ATTR_PUBLIC)) attrs = append_attr( attrs, make_attr(ATTR_PUBLIC) ); LIST_FOR_EACH_ENTRY( decl, decls, const declarator_t, entry ) { var_t *name = decl->var; if (name->name) { type_t *cur; cur = find_type(name->name, 0); if (cur) error_loc("%s: redefinition error; original definition was at %s:%d\n", cur->name, cur->loc_info.input_name, cur->loc_info.line_number); /* set the attributes to allow set_type to do some checks on them */ name->attrs = attrs; set_type(name, decl_spec, decl, 0); cur = type_new_alias(name->type, name->name); cur->attrs = attrs; if (is_incomplete(cur)) add_incomplete(cur); reg_type(cur, cur->name, 0); } } return type; } type_t *find_type(const char *name, int t) { struct rtype *cur = type_hash[hash_ident(name)]; while (cur && (cur->t != t || strcmp(cur->name, name))) cur = cur->next; return cur ? cur->type : NULL; } static type_t *find_type_or_error(const char *name, int t) { type_t *type = find_type(name, t); if (!type) { error_loc("type '%s' not found\n", name); return NULL; } return type; } static type_t *find_type_or_error2(char *name, int t) { type_t *tp = find_type_or_error(name, t); free(name); return tp; } int is_type(const char *name) { return find_type(name, 0) != NULL; } type_t *get_type(enum type_type type, char *name, int t) { type_t *tp; if (name) { tp = find_type(name, t); if (tp) { free(name); return tp; } } tp = make_type(type); tp->name = name; if (!name) return tp; return reg_type(tp, name, t); } /***** constant repository *****/ struct rconst { char *name; var_t *var; struct rconst *next; }; struct rconst *const_hash[HASHMAX]; static var_t *reg_const(var_t *var) { struct rconst *nc; int hash; if (!var->name) { error_loc("registering constant without name\n"); return var; } hash = hash_ident(var->name); nc = xmalloc(sizeof(struct rconst)); nc->name = var->name; nc->var = var; nc->next = const_hash[hash]; const_hash[hash] = nc; return var; } var_t *find_const(const char *name, int f) { struct rconst *cur = const_hash[hash_ident(name)]; while (cur && strcmp(cur->name, name)) cur = cur->next; if (!cur) { if (f) error_loc("constant '%s' not found\n", name); return NULL; } return cur->var; } static char *gen_name(void) { static const char format[] = "__WIDL_%s_generated_name_%08lX"; static unsigned long n = 0; static const char *file_id; static size_t size; char *name; if (! file_id) { char *dst = dup_basename(input_name, ".idl"); file_id = dst; for (; *dst; ++dst) if (! isalnum((unsigned char) *dst)) *dst = '_'; size = sizeof format - 7 + strlen(file_id) + 8; } name = xmalloc(size); sprintf(name, format, file_id, n++); return name; } struct allowed_attr { unsigned int dce_compatible : 1; unsigned int acf : 1; unsigned int on_interface : 1; unsigned int on_function : 1; unsigned int on_arg : 1; unsigned int on_type : 1; unsigned int on_enum : 1; unsigned int on_struct : 1; unsigned int on_union : 1; unsigned int on_field : 1; unsigned int on_library : 1; unsigned int on_dispinterface : 1; unsigned int on_module : 1; unsigned int on_coclass : 1; const char *display_name; }; struct allowed_attr allowed_attr[] = { /* attr { D ACF I Fn ARG T En St Un Fi L DI M C } */ /* ATTR_AGGREGATABLE */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "aggregatable" }, /* ATTR_APPOBJECT */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "appobject" }, /* ATTR_ASYNC */ { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "async" }, /* ATTR_AUTO_HANDLE */ { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "auto_handle" }, /* ATTR_BINDABLE */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "bindable" }, /* ATTR_BROADCAST */ { 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "broadcast" }, /* ATTR_CALLAS */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "call_as" }, /* ATTR_CALLCONV */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL }, /* ATTR_CASE */ { 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, "case" }, /* ATTR_CONST */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "const" }, /* ATTR_CONTEXTHANDLE */ { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "context_handle" }, /* ATTR_CONTROL */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, "control" }, /* ATTR_DEFAULT */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, "default" }, /* ATTR_DEFAULTCOLLELEM */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "defaultcollelem" }, /* ATTR_DEFAULTVALUE */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, "defaultvalue" }, /* ATTR_DEFAULTVTABLE */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "defaultvtable" }, /* ATTR_DISPINTERFACE */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL }, /* ATTR_DISPLAYBIND */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "displaybind" }, /* ATTR_DLLNAME */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, "dllname" }, /* ATTR_DUAL */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "dual" }, /* ATTR_ENDPOINT */ { 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "endpoint" }, /* ATTR_ENTRY */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "entry" }, /* ATTR_EXPLICIT_HANDLE */ { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "explicit_handle" }, /* ATTR_HANDLE */ { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "handle" }, /* ATTR_HELPCONTEXT */ { 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, "helpcontext" }, /* ATTR_HELPFILE */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, "helpfile" }, /* ATTR_HELPSTRING */ { 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, "helpstring" }, /* ATTR_HELPSTRINGCONTEXT */ { 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, "helpstringcontext" }, /* ATTR_HELPSTRINGDLL */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, "helpstringdll" }, /* ATTR_HIDDEN */ { 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, "hidden" }, /* ATTR_ID */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, "id" }, /* ATTR_IDEMPOTENT */ { 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "idempotent" }, /* ATTR_IIDIS */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, "iid_is" }, /* ATTR_IMMEDIATEBIND */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "immediatebind" }, /* ATTR_IMPLICIT_HANDLE */ { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "implicit_handle" }, /* ATTR_IN */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, "in" }, /* ATTR_INLINE */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "inline" }, /* ATTR_INPUTSYNC */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "inputsync" }, /* ATTR_LENGTHIS */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, "length_is" }, /* ATTR_LIBLCID */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, "lcid" }, /* ATTR_LOCAL */ { 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "local" }, /* ATTR_NONBROWSABLE */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "nonbrowsable" }, /* ATTR_NONCREATABLE */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "noncreatable" }, /* ATTR_NONEXTENSIBLE */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "nonextensible" }, /* ATTR_OBJECT */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "object" }, /* ATTR_ODL */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, "odl" }, /* ATTR_OLEAUTOMATION */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "oleautomation" }, /* ATTR_OPTIONAL */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, "optional" }, /* ATTR_OUT */ { 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, "out" }, /* ATTR_POINTERDEFAULT */ { 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "pointer_default" }, /* ATTR_POINTERTYPE */ { 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, "ref, unique or ptr" }, /* ATTR_PROPGET */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "propget" }, /* ATTR_PROPPUT */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "propput" }, /* ATTR_PROPPUTREF */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "propputref" }, /* ATTR_PUBLIC */ { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "public" }, /* ATTR_RANGE */ { 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, "range" }, /* ATTR_READONLY */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, "readonly" }, /* ATTR_REQUESTEDIT */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "requestedit" }, /* ATTR_RESTRICTED */ { 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, "restricted" }, /* ATTR_RETVAL */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, "retval" }, /* ATTR_SIZEIS */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, "size_is" }, /* ATTR_SOURCE */ { 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, "source" }, /* ATTR_STRICTCONTEXTHANDLE */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "strict_context_handle" }, /* ATTR_STRING */ { 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, "string" }, /* ATTR_SWITCHIS */ { 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, "switch_is" }, /* ATTR_SWITCHTYPE */ { 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, "switch_type" }, /* ATTR_TRANSMITAS */ { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "transmit_as" }, /* ATTR_UUID */ { 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, "uuid" }, /* ATTR_V1ENUM */ { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, "v1_enum" }, /* ATTR_VARARG */ { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "vararg" }, /* ATTR_VERSION */ { 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, "version" }, /* ATTR_WIREMARSHAL */ { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, "wire_marshal" }, }; const char *get_attr_display_name(enum attr_type type) { return allowed_attr[type].display_name; } static attr_list_t *check_iface_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_interface) error_loc("inapplicable attribute %s for interface %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static attr_list_t *check_function_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_function) error_loc("inapplicable attribute %s for function %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static void check_arg(var_t *arg) { const type_t *t = arg->type; const attr_t *attr; if (type_get_type(t) == TYPE_VOID) error_loc("argument '%s' has void type\n", arg->name); if (arg->attrs) { LIST_FOR_EACH_ENTRY(attr, arg->attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_arg) error_loc("inapplicable attribute %s for argument %s\n", allowed_attr[attr->type].display_name, arg->name); } } } static attr_list_t *check_typedef_attrs(attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_type) error_loc("inapplicable attribute %s for typedef\n", allowed_attr[attr->type].display_name); } return attrs; } static attr_list_t *check_enum_attrs(attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_enum) error_loc("inapplicable attribute %s for enum\n", allowed_attr[attr->type].display_name); } return attrs; } static attr_list_t *check_struct_attrs(attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_struct) error_loc("inapplicable attribute %s for struct\n", allowed_attr[attr->type].display_name); } return attrs; } static attr_list_t *check_union_attrs(attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_union) error_loc("inapplicable attribute %s for union\n", allowed_attr[attr->type].display_name); } return attrs; } static attr_list_t *check_field_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_field) error_loc("inapplicable attribute %s for field %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static attr_list_t *check_library_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_library) error_loc("inapplicable attribute %s for library %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static attr_list_t *check_dispiface_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_dispinterface) error_loc("inapplicable attribute %s for dispinterface %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static attr_list_t *check_module_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_module) error_loc("inapplicable attribute %s for module %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static attr_list_t *check_coclass_attrs(const char *name, attr_list_t *attrs) { const attr_t *attr; if (!attrs) return attrs; LIST_FOR_EACH_ENTRY(attr, attrs, const attr_t, entry) { if (!allowed_attr[attr->type].on_coclass) error_loc("inapplicable attribute %s for coclass %s\n", allowed_attr[attr->type].display_name, name); } return attrs; } static int is_allowed_conf_type(const type_t *type) { switch (type_get_type(type)) { case TYPE_ENUM: return TRUE; case TYPE_BASIC: switch (type_basic_get_type(type)) { case TYPE_BASIC_INT8: case TYPE_BASIC_INT16: case TYPE_BASIC_INT32: case TYPE_BASIC_INT64: case TYPE_BASIC_INT: case TYPE_BASIC_CHAR: case TYPE_BASIC_HYPER: case TYPE_BASIC_BYTE: case TYPE_BASIC_WCHAR: case TYPE_BASIC_ERROR_STATUS_T: return TRUE; default: return FALSE; } case TYPE_ALIAS: /* shouldn't get here because of type_get_type call above */ assert(0); /* fall through */ case TYPE_STRUCT: case TYPE_UNION: case TYPE_ENCAPSULATED_UNION: case TYPE_ARRAY: case TYPE_POINTER: case TYPE_VOID: case TYPE_MODULE: case TYPE_COCLASS: case TYPE_FUNCTION: case TYPE_INTERFACE: return FALSE; } return FALSE; } static int is_ptr_guid_type(const type_t *type) { unsigned int align = 0; /* first, make sure it is a pointer to something */ if (!is_ptr(type)) return FALSE; /* second, make sure it is a pointer to something of size sizeof(GUID), * i.e. 16 bytes */ return (type_memsize(type_pointer_get_ref(type), &align) == 16); } static void check_conformance_expr_list(const char *attr_name, const var_t *arg, const type_t *container_type, expr_list_t *expr_list) { expr_t *dim; struct expr_loc expr_loc; expr_loc.v = arg; expr_loc.attr = attr_name; if (expr_list) LIST_FOR_EACH_ENTRY(dim, expr_list, expr_t, entry) { if (dim->type != EXPR_VOID) { const type_t *expr_type = expr_resolve_type(&expr_loc, container_type, dim); if (!is_allowed_conf_type(expr_type)) error_loc_info(&arg->loc_info, "expression must resolve to integral type <= 32bits for attribute %s\n", attr_name); } } } static void check_remoting_fields(const var_t *var, type_t *type); /* checks that properties common to fields and arguments are consistent */ static void check_field_common(const type_t *container_type, const char *container_name, const var_t *arg) { type_t *type = arg->type; int more_to_do; const char *container_type_name = NULL; switch (type_get_type_detect_alias(type)) { case TYPE_STRUCT: container_type_name = "struct"; break; case TYPE_UNION: container_type_name = "union"; break; case TYPE_ENCAPSULATED_UNION: container_type_name = "encapsulated union"; break; case TYPE_FUNCTION: container_type_name = "function"; break; default: break; } if (is_attr(arg->attrs, ATTR_LENGTHIS) && (is_attr(arg->attrs, ATTR_STRING) || is_aliaschain_attr(arg->type, ATTR_STRING))) error_loc_info(&arg->loc_info, "string and length_is specified for argument %s are mutually exclusive attributes\n", arg->name); if (is_attr(arg->attrs, ATTR_SIZEIS)) { expr_list_t *size_is_exprs = get_attrp(arg->attrs, ATTR_SIZEIS); check_conformance_expr_list("size_is", arg, container_type, size_is_exprs); } if (is_attr(arg->attrs, ATTR_LENGTHIS)) { expr_list_t *length_is_exprs = get_attrp(arg->attrs, ATTR_LENGTHIS); check_conformance_expr_list("length_is", arg, container_type, length_is_exprs); } if (is_attr(arg->attrs, ATTR_IIDIS)) { struct expr_loc expr_loc; expr_t *expr = get_attrp(arg->attrs, ATTR_IIDIS); if (expr->type != EXPR_VOID) { const type_t *expr_type; expr_loc.v = arg; expr_loc.attr = "iid_is"; expr_type = expr_resolve_type(&expr_loc, container_type, expr); if (!expr_type || !is_ptr_guid_type(expr_type)) error_loc_info(&arg->loc_info, "expression must resolve to pointer to GUID type for attribute iid_is\n"); } } if (is_attr(arg->attrs, ATTR_SWITCHIS)) { struct expr_loc expr_loc; expr_t *expr = get_attrp(arg->attrs, ATTR_SWITCHIS); if (expr->type != EXPR_VOID) { const type_t *expr_type; expr_loc.v = arg; expr_loc.attr = "switch_is"; expr_type = expr_resolve_type(&expr_loc, container_type, expr); if (!expr_type || !is_allowed_conf_type(expr_type)) error_loc_info(&arg->loc_info, "expression must resolve to integral type <= 32bits for attribute %s\n", expr_loc.attr); } } do { more_to_do = FALSE; switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS)) { case TGT_STRUCT: case TGT_UNION: check_remoting_fields(arg, type); break; case TGT_INVALID: switch (type_get_type(type)) { case TYPE_VOID: error_loc_info(&arg->loc_info, "parameter \'%s\' of %s \'%s\' cannot derive from void *\n", arg->name, container_type_name, container_name); break; case TYPE_FUNCTION: error_loc_info(&arg->loc_info, "parameter \'%s\' of %s \'%s\' cannot be a function pointer\n", arg->name, container_type_name, container_name); break; case TYPE_COCLASS: case TYPE_INTERFACE: case TYPE_MODULE: /* FIXME */ break; default: break; } case TGT_CTXT_HANDLE: case TGT_CTXT_HANDLE_POINTER: /* FIXME */ break; case TGT_POINTER: type = type_pointer_get_ref(type); more_to_do = TRUE; break; case TGT_ARRAY: type = type_array_get_element(type); more_to_do = TRUE; break; case TGT_USER_TYPE: case TGT_STRING: case TGT_IFACE_POINTER: case TGT_BASIC: case TGT_ENUM: /* nothing to do */ break; } } while (more_to_do); } static void check_remoting_fields(const var_t *var, type_t *type) { const var_t *field; const var_list_t *fields = NULL; type = type_get_real_type(type); if (type->checked) return; type->checked = TRUE; if (type_get_type(type) == TYPE_STRUCT) { if (type_is_complete(type)) fields = type_struct_get_fields(type); else error_loc_info(&var->loc_info, "undefined type declaration %s\n", type->name); } else if (type_get_type(type) == TYPE_UNION || type_get_type(type) == TYPE_ENCAPSULATED_UNION) fields = type_union_get_cases(type); if (fields) LIST_FOR_EACH_ENTRY( field, fields, const var_t, entry ) if (field->type) check_field_common(type, type->name, field); } /* checks that arguments for a function make sense for marshalling and unmarshalling */ static void check_remoting_args(const var_t *func) { const char *funcname = func->name; const var_t *arg; if (func->type->details.function->args) LIST_FOR_EACH_ENTRY( arg, func->type->details.function->args, const var_t, entry ) { const type_t *type = arg->type; /* check that [out] parameters have enough pointer levels */ if (is_attr(arg->attrs, ATTR_OUT)) { switch (typegen_detect_type(type, arg->attrs, TDT_ALL_TYPES)) { case TGT_BASIC: case TGT_ENUM: case TGT_STRUCT: case TGT_UNION: case TGT_CTXT_HANDLE: case TGT_USER_TYPE: error_loc_info(&arg->loc_info, "out parameter \'%s\' of function \'%s\' is not a pointer\n", arg->name, funcname); break; case TGT_IFACE_POINTER: error_loc_info(&arg->loc_info, "out interface pointer \'%s\' of function \'%s\' is not a double pointer\n", arg->name, funcname); break; case TGT_STRING: if (!is_array(type)) { /* FIXME */ } break; case TGT_INVALID: /* already error'd before we get here */ case TGT_CTXT_HANDLE_POINTER: case TGT_POINTER: case TGT_ARRAY: /* OK */ break; } } check_field_common(func->type, funcname, arg); } } static void add_explicit_handle_if_necessary(var_t *func) { const var_t* explicit_handle_var; const var_t* explicit_generic_handle_var = NULL; const var_t* context_handle_var = NULL; /* check for a defined binding handle */ explicit_handle_var = get_explicit_handle_var(func); if (!explicit_handle_var) { explicit_generic_handle_var = get_explicit_generic_handle_var(func); if (!explicit_generic_handle_var) { context_handle_var = get_context_handle_var(func); if (!context_handle_var) { /* no explicit handle specified so add * "[in] handle_t IDL_handle" as the first parameter to the * function */ var_t *idl_handle = make_var(xstrdup("IDL_handle")); idl_handle->attrs = append_attr(NULL, make_attr(ATTR_IN)); idl_handle->type = find_type_or_error("handle_t", 0); type_function_add_head_arg(func->type, idl_handle); } } } } static void check_functions(const type_t *iface, int is_inside_library) { const statement_t *stmt; if (is_attr(iface->attrs, ATTR_EXPLICIT_HANDLE)) { STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) ) { var_t *func = stmt->u.var; add_explicit_handle_if_necessary(func); } } if (!is_inside_library && !is_attr(iface->attrs, ATTR_LOCAL)) { STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) ) { const var_t *func = stmt->u.var; if (!is_attr(func->attrs, ATTR_LOCAL)) check_remoting_args(func); } } } static void check_statements(const statement_list_t *stmts, int is_inside_library) { const statement_t *stmt; if (stmts) LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry) { if (stmt->type == STMT_LIBRARY) check_statements(stmt->u.lib->stmts, TRUE); else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE) check_functions(stmt->u.type, is_inside_library); } } static void check_all_user_types(const statement_list_t *stmts) { const statement_t *stmt; if (stmts) LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry) { if (stmt->type == STMT_LIBRARY) check_all_user_types(stmt->u.lib->stmts); else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE && !is_local(stmt->u.type->attrs)) { const statement_t *stmt_func; STATEMENTS_FOR_EACH_FUNC(stmt_func, type_iface_get_stmts(stmt->u.type)) { const var_t *func = stmt_func->u.var; check_for_additional_prototype_types(func->type->details.function->args); } } } } int is_valid_uuid(const char *s) { int i; for (i = 0; i < 36; ++i) if (i == 8 || i == 13 || i == 18 || i == 23) { if (s[i] != '-') return FALSE; } else if (!isxdigit(s[i])) return FALSE; return s[i] == '\0'; } static statement_t *make_statement(enum statement_type type) { statement_t *stmt = xmalloc(sizeof(*stmt)); stmt->type = type; return stmt; } static statement_t *make_statement_type_decl(type_t *type) { statement_t *stmt = make_statement(STMT_TYPE); stmt->u.type = type; return stmt; } static statement_t *make_statement_reference(type_t *type) { statement_t *stmt = make_statement(STMT_TYPEREF); stmt->u.type = type; return stmt; } static statement_t *make_statement_declaration(var_t *var) { statement_t *stmt = make_statement(STMT_DECLARATION); stmt->u.var = var; if (var->stgclass == STG_EXTERN && var->eval) warning("'%s' initialised and declared extern\n", var->name); if (is_const_decl(var)) { if (var->eval) reg_const(var); } else if ((var->stgclass == STG_NONE || var->stgclass == STG_REGISTER) && type_get_type(var->type) != TYPE_FUNCTION) error_loc("instantiation of data is illegal\n"); return stmt; } static statement_t *make_statement_library(typelib_t *typelib) { statement_t *stmt = make_statement(STMT_LIBRARY); stmt->u.lib = typelib; return stmt; } static statement_t *make_statement_cppquote(const char *str) { statement_t *stmt = make_statement(STMT_CPPQUOTE); stmt->u.str = str; return stmt; } static statement_t *make_statement_importlib(const char *str) { statement_t *stmt = make_statement(STMT_IMPORTLIB); stmt->u.str = str; return stmt; } static statement_t *make_statement_import(const char *str) { statement_t *stmt = make_statement(STMT_IMPORT); stmt->u.str = str; return stmt; } static statement_t *make_statement_module(type_t *type) { statement_t *stmt = make_statement(STMT_MODULE); stmt->u.type = type; return stmt; } static statement_t *make_statement_typedef(declarator_list_t *decls) { declarator_t *decl, *next; statement_t *stmt; type_list_t **type_list; if (!decls) return NULL; stmt = make_statement(STMT_TYPEDEF); stmt->u.type_list = NULL; type_list = &stmt->u.type_list; LIST_FOR_EACH_ENTRY_SAFE( decl, next, decls, declarator_t, entry ) { var_t *var = decl->var; type_t *type = find_type_or_error(var->name, 0); *type_list = xmalloc(sizeof(type_list_t)); (*type_list)->type = type; (*type_list)->next = NULL; type_list = &(*type_list)->next; free(decl); free(var); } return stmt; } static statement_list_t *append_statement(statement_list_t *list, statement_t *stmt) { if (!stmt) return list; if (!list) { list = xmalloc( sizeof(*list) ); list_init( list ); } list_add_tail( list, &stmt->entry ); return list; } void init_loc_info(loc_info_t *i) { i->input_name = input_name ? input_name : "stdin"; i->line_number = line_number; i->near_text = parser_text; } static void check_def(const type_t *t) { if (t->defined) error_loc("%s: redefinition error; original definition was at %s:%d\n", t->name, t->loc_info.input_name, t->loc_info.line_number); }