%{ /* * IDL Compiler * * Copyright 2002 Ove Kaaven * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include #include #include #include #include #include #ifdef HAVE_ALLOCA_H #include #endif #include "windef.h" #include "widl.h" #include "utils.h" #include "parser.h" #include "header.h" #include "proxy.h" #include "typelib.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 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_t *make_expr(enum expr_type type); static expr_t *make_exprl(enum expr_type type, long val); static expr_t *make_exprs(enum expr_type type, char *val); static expr_t *make_exprt(enum expr_type type, typeref_t *tref, expr_t *expr); static expr_t *make_expr1(enum expr_type type, expr_t *expr); static expr_t *make_expr2(enum expr_type type, expr_t *exp1, expr_t *exp2); static expr_t *make_expr3(enum expr_type type, expr_t *expr1, expr_t *expr2, expr_t *expr3); static type_t *make_type(unsigned char type, type_t *ref); static typeref_t *make_tref(char *name, type_t *ref); static typeref_t *uniq_tref(typeref_t *ref); static type_t *type_ref(typeref_t *ref); static void set_type(var_t *v, typeref_t *ref, expr_t *arr); static ifref_t *make_ifref(type_t *iface); static var_t *make_var(char *name); static func_t *make_func(var_t *def, var_t *args); static class_t *make_class(char *name); static type_t *reg_type(type_t *type, char *name, int t); static type_t *reg_types(type_t *type, var_t *names, int t); static type_t *find_type(char *name, int t); static type_t *find_type2(char *name, int t); static type_t *get_type(unsigned char type, char *name, int t); static type_t *get_typev(unsigned char type, var_t *name, int t); static int get_struct_type(var_t *fields); static var_t *reg_const(var_t *var); static var_t *find_const(char *name, int f); #define tsENUM 1 #define tsSTRUCT 2 #define tsUNION 3 static type_t std_bool = { "boolean" }; static type_t std_int = { "int" }; static type_t std_int64 = { "__int64" }; static type_t std_uhyper = { "MIDL_uhyper" }; %} %union { attr_t *attr; expr_t *expr; type_t *type; typeref_t *tref; var_t *var; func_t *func; ifref_t *ifref; class_t *clas; char *str; UUID *uuid; unsigned int num; } %token aIDENTIFIER %token aKNOWNTYPE %token aNUM aHEXNUM %token aSTRING %token aUUID %token aEOF %token SHL SHR %token tAGGREGATABLE tALLOCATE tAPPOBJECT tARRAYS 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 tDEFAULTVALUE %token tDISPINTERFACE %token tDLLNAME tDOUBLE tDUAL %token tENDPOINT %token tENTRY tENUM tERRORSTATUST %token tEXTERN %token tFLOAT %token tHANDLE %token tHANDLET %token tHELPCONTEXT tHELPFILE %token tHELPSTRING tHELPSTRINGCONTEXT tHELPSTRINGDLL %token tHIDDEN %token tHYPER tID tIDEMPOTENT %token tIIDIS %token tIMPORT tIMPORTLIB %token tIN tINCLUDE tINLINE %token tINPUTSYNC %token tINT tINT64 %token tINTERFACE %token tLENGTHIS tLIBRARY %token tLOCAL %token tLONG %token tMETHODS %token tMODULE %token tOBJECT tODL tOLEAUTOMATION %token tOPTIONAL %token tOUT %token tPOINTERDEFAULT %token tPROPERTIES %token tPROPGET tPROPPUT tPROPPUTREF %token tPUBLIC %token tREADONLY tREF %token tRESTRICTED %token tRETVAL %token tSHORT %token tSIGNED %token tSIZEIS tSIZEOF %token tSOURCE %token tSTDCALL %token tSTRING tSTRUCT %token tSWITCH tSWITCHIS tSWITCHTYPE %token tTRANSMITAS %token tTYPEDEF %token tUNION %token tUNIQUE %token tUNSIGNED %token tUUID %token tV1ENUM %token tVARARG %token tVERSION %token tVOID %token tWCHAR tWIREMARSHAL /* used in attr_t */ %token tPOINTERTYPE %type m_attributes attributes attrib_list attribute %type m_exprs /* exprs expr_list */ m_expr expr expr_list_const expr_const %type array array_list %type inherit interface interfacehdr interfacedef interfacedec %type dispinterface dispinterfacehdr dispinterfacedef %type module modulehdr moduledef %type base_type int_std %type enumdef structdef typedef uniondef %type gbl_statements coclass_ints coclass_int %type type %type m_args no_args args arg %type fields field s_field cases case enums enum_list enum constdef externdef %type m_ident t_ident ident p_ident pident pident_list %type dispint_props %type funcdef int_statements %type dispint_meths %type coclass coclasshdr coclassdef %type pointer_type version %type libraryhdr %left ',' %right COND %left '|' %left '&' %left '-' '+' %left '*' '/' %left SHL SHR %right '~' %right CAST %right PPTR %right NEG %% input: gbl_statements { write_proxies($1); } ; gbl_statements: { $$ = NULL; } | gbl_statements interfacedec { $$ = $1; } | gbl_statements interfacedef { $$ = make_ifref($2); LINK($$, $1); } | gbl_statements coclassdef { $$ = $1; add_coclass($2); } | gbl_statements moduledef { $$ = $1; add_module($2); } | gbl_statements librarydef { $$ = $1; } | gbl_statements statement { $$ = $1; } ; imp_statements: {} | imp_statements interfacedec { if (!parse_only) add_interface($2); } | imp_statements interfacedef { if (!parse_only) add_interface($2); } | imp_statements coclassdef { if (!parse_only) add_coclass($2); } | imp_statements moduledef { if (!parse_only) add_module($2); } | imp_statements statement {} ; int_statements: { $$ = NULL; } | int_statements funcdef ';' { $$ = $2; LINK($$, $1); } | int_statements statement { $$ = $1; } ; statement: ';' {} | constdef ';' { if (!parse_only && do_header) { write_constdef($1); } } | cppquote {} | enumdef ';' { if (!parse_only && do_header) { write_type(header, $1, NULL, NULL); fprintf(header, ";\n\n"); } } | externdef ';' { if (!parse_only && do_header) { write_externdef($1); } } | import {} | structdef ';' { if (!parse_only && do_header) { write_type(header, $1, NULL, NULL); fprintf(header, ";\n\n"); } } | typedef ';' {} | uniondef ';' { if (!parse_only && do_header) { write_type(header, $1, NULL, NULL); fprintf(header, ";\n\n"); } } ; cppquote: tCPPQUOTE '(' aSTRING ')' { if (!parse_only && do_header) fprintf(header, "%s\n", $3); } ; import_start: tIMPORT aSTRING ';' { assert(yychar == YYEMPTY); if (!do_import($2)) yychar = aEOF; } ; import: import_start imp_statements aEOF {} ; libraryhdr: tLIBRARY aIDENTIFIER { $$ = $2; } ; library_start: attributes libraryhdr '{' { start_typelib($2, $1); } ; librarydef: library_start imp_statements '}' { end_typelib(); } ; m_args: { $$ = NULL; } | args ; no_args: tVOID { $$ = NULL; } ; args: arg | args ',' arg { LINK($3, $1); $$ = $3; } | no_args ; /* split into two rules to get bison to resolve a tVOID conflict */ arg: attributes type pident array { $$ = $3; set_type($$, $2, $4); $$->attrs = $1; } | type pident array { $$ = $2; set_type($$, $1, $3); } | attributes type pident '(' m_args ')' { $$ = $3; $$->ptr_level--; set_type($$, $2, NULL); $$->attrs = $1; $$->args = $5; } | type pident '(' m_args ')' { $$ = $2; $$->ptr_level--; set_type($$, $1, NULL); $$->args = $4; } ; array: { $$ = NULL; } | '[' array_list ']' { $$ = $2; } | '[' '*' ']' { $$ = make_expr(EXPR_VOID); } ; array_list: m_expr /* size of first dimension is optional */ | array_list ',' expr { LINK($3, $1); $$ = $3; } | array_list ']' '[' expr { LINK($4, $1); $$ = $4; } ; m_attributes: { $$ = NULL; } | attributes ; attributes: '[' attrib_list ']' { $$ = $2; } ; attrib_list: attribute | attrib_list ',' attribute { LINK($3, $1); $$ = $3; } | attrib_list ']' '[' attribute { LINK($4, $1); $$ = $4; } ; attribute: tASYNC { $$ = make_attr(ATTR_ASYNC); } | tCALLAS '(' ident ')' { $$ = make_attrp(ATTR_CALLAS, $3); } | tCASE '(' expr_list_const ')' { $$ = 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 { $$ = make_attr(ATTR_DEFAULT); } | tDEFAULTVALUE '(' expr_const ')' { $$ = make_attrp(ATTR_DEFAULTVALUE_EXPR, $3); } | tDEFAULTVALUE '(' aSTRING ')' { $$ = make_attrp(ATTR_DEFAULTVALUE_STRING, $3); } | tDLLNAME '(' aSTRING ')' { $$ = make_attrp(ATTR_DLLNAME, $3); } | tDUAL { $$ = make_attr(ATTR_DUAL); } | tENDPOINT '(' aSTRING ')' { $$ = make_attrp(ATTR_ENDPOINT, $3); } | tENTRY '(' aSTRING ')' { $$ = make_attrp(ATTR_ENTRY_STRING, $3); } | tENTRY '(' expr_const ')' { $$ = make_attrp(ATTR_ENTRY_ORDINAL, $3); } | tHANDLE { $$ = make_attr(ATTR_HANDLE); } | tHELPCONTEXT '(' expr_const ')' { $$ = make_attrp(ATTR_HELPCONTEXT, $3); } | tHELPFILE '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPFILE, $3); } | tHELPSTRING '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPSTRING, $3); } | tHELPSTRINGCONTEXT '(' expr_const ')' { $$ = make_attrp(ATTR_HELPSTRINGCONTEXT, $3); } | tHELPSTRINGDLL '(' aSTRING ')' { $$ = make_attrp(ATTR_HELPSTRINGDLL, $3); } | tHIDDEN { $$ = make_attr(ATTR_HIDDEN); } | tID '(' expr_const ')' { $$ = make_attrp(ATTR_ID, $3); } | tIDEMPOTENT { $$ = make_attr(ATTR_IDEMPOTENT); } | tIIDIS '(' ident ')' { $$ = make_attrp(ATTR_IIDIS, $3); } | tIN { $$ = make_attr(ATTR_IN); } | tINPUTSYNC { $$ = make_attr(ATTR_INPUTSYNC); } | tLENGTHIS '(' m_exprs ')' { $$ = make_attrp(ATTR_LENGTHIS, $3); } | tLOCAL { $$ = make_attr(ATTR_LOCAL); } | 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); } | tREADONLY { $$ = make_attr(ATTR_READONLY); } | tRESTRICTED { $$ = make_attr(ATTR_RESTRICTED); } | tRETVAL { $$ = make_attr(ATTR_RETVAL); } | tSIZEIS '(' m_exprs ')' { $$ = make_attrp(ATTR_SIZEIS, $3); } | tSOURCE { $$ = make_attr(ATTR_SOURCE); } | tSTRING { $$ = make_attr(ATTR_STRING); } | tSWITCHIS '(' expr ')' { $$ = make_attrp(ATTR_SWITCHIS, $3); } | tSWITCHTYPE '(' type ')' { $$ = make_attrp(ATTR_SWITCHTYPE, type_ref($3)); } | tTRANSMITAS '(' type ')' { $$ = make_attrp(ATTR_TRANSMITAS, type_ref($3)); } | tUUID '(' aUUID ')' { $$ = 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, type_ref($3)); } | pointer_type { $$ = make_attrv(ATTR_POINTERTYPE, $1); } ; callconv: | tSTDCALL ; cases: { $$ = NULL; } | cases case { if ($2) { LINK($2, $1); $$ = $2; } else { $$ = $1; } } ; case: tCASE expr ':' field { attr_t *a = make_attrp(ATTR_CASE, $2); $$ = $4; if (!$$) $$ = make_var(NULL); LINK(a, $$->attrs); $$->attrs = a; } | tDEFAULT ':' field { attr_t *a = make_attr(ATTR_DEFAULT); $$ = $3; if (!$$) $$ = make_var(NULL); LINK(a, $$->attrs); $$->attrs = a; } ; constdef: tCONST type ident '=' expr_const { $$ = reg_const($3); set_type($$, $2, NULL); $$->eval = $5; $$->lval = $5->cval; } ; enums: { $$ = NULL; } | enum_list ',' { $$ = $1; } | enum_list ; enum_list: enum | enum_list ',' enum { LINK($3, $1); $$ = $3; if ($1 && !$3->eval) $3->lval = $1->lval + 1; } ; enum: ident '=' expr_const { $$ = reg_const($1); $$->eval = $3; $$->lval = $3->cval; $$->type = make_type(RPC_FC_LONG, &std_int); } | ident { $$ = reg_const($1); $$->lval = 0; /* default for first enum entry */ $$->type = make_type(RPC_FC_LONG, &std_int); } ; enumdef: tENUM t_ident '{' enums '}' { $$ = get_typev(RPC_FC_ENUM16, $2, tsENUM); $$->fields = $4; $$->defined = TRUE; if(in_typelib) add_enum($$); } ; m_exprs: m_expr | m_exprs ',' m_expr { LINK($3, $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); } | aIDENTIFIER { $$ = make_exprs(EXPR_IDENTIFIER, $1); } | expr '?' expr ':' expr %prec COND { $$ = make_expr3(EXPR_COND, $1, $3, $5); } | expr '|' expr { $$ = make_expr2(EXPR_OR , $1, $3); } | expr '&' expr { $$ = make_expr2(EXPR_AND, $1, $3); } | expr '+' expr { $$ = make_expr2(EXPR_ADD, $1, $3); } | expr '-' expr { $$ = make_expr2(EXPR_SUB, $1, $3); } | expr '*' expr { $$ = make_expr2(EXPR_MUL, $1, $3); } | expr '/' expr { $$ = make_expr2(EXPR_DIV, $1, $3); } | expr SHL expr { $$ = make_expr2(EXPR_SHL, $1, $3); } | expr SHR expr { $$ = make_expr2(EXPR_SHR, $1, $3); } | '~' expr { $$ = make_expr1(EXPR_NOT, $2); } | '-' expr %prec NEG { $$ = make_expr1(EXPR_NEG, $2); } | '*' expr %prec PPTR { $$ = make_expr1(EXPR_PPTR, $2); } | '(' type ')' expr %prec CAST { $$ = make_exprt(EXPR_CAST, $2, $4); } | tSIZEOF '(' type ')' { $$ = make_exprt(EXPR_SIZEOF, $3, NULL); } | '(' expr ')' { $$ = $2; } ; expr_list_const: expr_const | expr_list_const ',' expr_const { LINK($3, $1); $$ = $3; } ; expr_const: expr { $$ = $1; if (!$$->is_const) yyerror("expression is not constant\n"); } ; externdef: tEXTERN tCONST type ident { $$ = $4; set_type($$, $3, NULL); } ; fields: { $$ = NULL; } | fields field { if ($2) { LINK($2, $1); $$ = $2; } else { $$ = $1; } } ; field: s_field ';' { $$ = $1; } | m_attributes uniondef ';' { $$ = make_var(NULL); $$->type = $2; $$->attrs = $1; } | attributes ';' { $$ = make_var(NULL); $$->attrs = $1; } | ';' { $$ = NULL; } ; s_field: m_attributes type pident array { $$ = $3; set_type($$, $2, $4); $$->attrs = $1; } ; funcdef: m_attributes type callconv pident '(' m_args ')' { set_type($4, $2, NULL); $4->attrs = $1; $$ = make_func($4, $6); if (is_attr($4->attrs, ATTR_IN)) { yyerror("Inapplicable attribute"); } } ; m_ident: { $$ = NULL; } | ident ; t_ident: { $$ = NULL; } | aIDENTIFIER { $$ = make_var($1); } | aKNOWNTYPE { $$ = make_var($1); } ; ident: aIDENTIFIER { $$ = make_var($1); } /* some "reserved words" used in attributes are also used as field names in some MS IDL files */ | aKNOWNTYPE { $$ = make_var($1); } | tID { $$ = make_var($1); } | tRETVAL { $$ = make_var($1); } | tVERSION { $$ = make_var($1); } ; base_type: tBYTE { $$ = make_type(RPC_FC_BYTE, NULL); } | tWCHAR { $$ = make_type(RPC_FC_WCHAR, NULL); } | int_std | tSIGNED int_std { $$ = $2; $$->sign = 1; } | tUNSIGNED int_std { $$ = $2; $$->sign = -1; switch ($$->type) { case RPC_FC_CHAR: $$->type = RPC_FC_BYTE; $$->sign = 0; break; case RPC_FC_SMALL: $$->type = RPC_FC_USMALL; break; case RPC_FC_SHORT: $$->type = RPC_FC_USHORT; break; case RPC_FC_LONG: $$->type = RPC_FC_ULONG; break; case RPC_FC_HYPER: if (!$$->ref) { $$->ref = &std_uhyper; $$->sign = 0; } break; default: break; } } | tFLOAT { $$ = make_type(RPC_FC_FLOAT, NULL); } | tDOUBLE { $$ = make_type(RPC_FC_DOUBLE, NULL); } | tBOOLEAN { $$ = make_type(RPC_FC_BYTE, &std_bool); /* ? */ } | tERRORSTATUST { $$ = make_type(RPC_FC_ERROR_STATUS_T, NULL); } | tHANDLET { $$ = make_type(RPC_FC_BIND_PRIMITIVE, NULL); /* ? */ } ; m_int: | tINT ; int_std: tINT { $$ = make_type(RPC_FC_LONG, &std_int); } /* win32 only */ | tSHORT m_int { $$ = make_type(RPC_FC_SHORT, NULL); } | tLONG m_int { $$ = make_type(RPC_FC_LONG, NULL); } | tHYPER m_int { $$ = make_type(RPC_FC_HYPER, NULL); } | tINT64 { $$ = make_type(RPC_FC_HYPER, &std_int64); } | tCHAR { $$ = make_type(RPC_FC_CHAR, NULL); } ; coclass: tCOCLASS aIDENTIFIER { $$ = make_class($2); } | tCOCLASS aKNOWNTYPE { $$ = make_class($2); } ; coclasshdr: attributes coclass { $$ = $2; $$->attrs = $1; if (!parse_only && do_header) write_coclass($$); } ; coclassdef: coclasshdr '{' coclass_ints '}' { $$ = $1; $$->ifaces = $3; } ; coclass_ints: { $$ = NULL; } | coclass_ints coclass_int { LINK($2, $1); $$ = $2; } ; coclass_int: m_attributes interfacedec { $$ = make_ifref($2); $$->attrs = $1; } ; dispinterface: tDISPINTERFACE aIDENTIFIER { $$ = get_type(0, $2, 0); } | tDISPINTERFACE aKNOWNTYPE { $$ = get_type(0, $2, 0); } ; dispinterfacehdr: attributes dispinterface { $$ = $2; if ($$->defined) yyerror("multiple definition error\n"); $$->attrs = $1; $$->attrs = make_attr(ATTR_DISPINTERFACE); LINK($$->attrs, $1); $$->ref = find_type("IDispatch", 0); if (!$$->ref) yyerror("IDispatch is undefined\n"); $$->defined = TRUE; if (!parse_only && do_header) write_forward($$); } ; dispint_props: tPROPERTIES ':' { $$ = NULL; } | dispint_props s_field ';' { LINK($2, $1); $$ = $2; } ; dispint_meths: tMETHODS ':' { $$ = NULL; } | dispint_meths funcdef ';' { LINK($2, $1); $$ = $2; } ; dispinterfacedef: dispinterfacehdr '{' dispint_props dispint_meths '}' { $$ = $1; $$->fields = $3; $$->funcs = $4; if (!parse_only && do_header) write_dispinterface($$); } /* FIXME: not sure how to handle this yet | dispinterfacehdr '{' interface '}' { $$ = $1; if (!parse_only && do_header) write_interface($$); } */ ; inherit: { $$ = NULL; } | ':' aKNOWNTYPE { $$ = find_type2($2, 0); } ; interface: tINTERFACE aIDENTIFIER { $$ = get_type(RPC_FC_IP, $2, 0); } | tINTERFACE aKNOWNTYPE { $$ = get_type(RPC_FC_IP, $2, 0); } ; interfacehdr: attributes interface { $$ = $2; if ($$->defined) yyerror("multiple definition error\n"); $$->attrs = $1; $$->defined = TRUE; if (!parse_only && do_header) write_forward($$); } ; interfacedef: interfacehdr inherit '{' int_statements '}' { $$ = $1; $$->ref = $2; $$->funcs = $4; if (!parse_only && do_header) write_interface($$); } /* MIDL is able to import the definition of a base class from inside the * definition of a derived class, I'll try to support it with this rule */ | interfacehdr ':' aIDENTIFIER '{' import int_statements '}' { $$ = $1; $$->ref = find_type2($3, 0); if (!$$->ref) yyerror("base class %s not found in import\n", $3); $$->funcs = $6; if (!parse_only && do_header) write_interface($$); } | dispinterfacedef { $$ = $1; } ; interfacedec: interface ';' { $$ = $1; if (!parse_only && do_header) write_forward($$); } | dispinterface ';' { $$ = $1; if (!parse_only && do_header) write_forward($$); } ; module: tMODULE aIDENTIFIER { $$ = make_type(0, NULL); $$->name = $2; } | tMODULE aKNOWNTYPE { $$ = make_type(0, NULL); $$->name = $2; } ; modulehdr: attributes module { $$ = $2; $$->attrs = $1; } ; moduledef: modulehdr '{' int_statements '}' { $$ = $1; $$->funcs = $3; /* FIXME: if (!parse_only && do_header) write_module($$); */ } ; p_ident: '*' pident %prec PPTR { $$ = $2; $$->ptr_level++; } | tCONST p_ident { $$ = $2; /* FIXME */ } ; pident: ident | p_ident | '(' pident ')' { $$ = $2; } ; pident_list: pident | pident_list ',' pident { LINK($3, $1); $$ = $3; } ; pointer_type: tREF { $$ = RPC_FC_RP; } | tUNIQUE { $$ = RPC_FC_UP; } ; structdef: tSTRUCT t_ident '{' fields '}' { $$ = get_typev(RPC_FC_STRUCT, $2, tsSTRUCT); /* overwrite RPC_FC_STRUCT with a more exact type */ $$->type = get_struct_type( $4 ); $$->fields = $4; $$->defined = TRUE; if(in_typelib) add_struct($$); } ; type: tVOID { $$ = make_tref(NULL, make_type(0, NULL)); } | aKNOWNTYPE { $$ = make_tref($1, find_type($1, 0)); } | base_type { $$ = make_tref(NULL, $1); } | tCONST type { $$ = uniq_tref($2); $$->ref->is_const = TRUE; } | enumdef { $$ = make_tref(NULL, $1); } | tENUM aIDENTIFIER { $$ = make_tref(NULL, find_type2($2, tsENUM)); } | structdef { $$ = make_tref(NULL, $1); } | tSTRUCT aIDENTIFIER { $$ = make_tref(NULL, get_type(RPC_FC_STRUCT, $2, tsSTRUCT)); } | uniondef { $$ = make_tref(NULL, $1); } | tUNION aIDENTIFIER { $$ = make_tref(NULL, find_type2($2, tsUNION)); } ; typedef: tTYPEDEF m_attributes type pident_list { typeref_t *tref = uniq_tref($3); $4->tname = tref->name; tref->name = NULL; $$ = type_ref(tref); $$->attrs = $2; if (!parse_only && do_header) write_typedef($$, $4); reg_types($$, $4, 0); } ; uniondef: tUNION t_ident '{' fields '}' { $$ = get_typev(RPC_FC_NON_ENCAPSULATED_UNION, $2, tsUNION); $$->fields = $4; $$->defined = TRUE; } | tUNION t_ident tSWITCH '(' s_field ')' m_ident '{' cases '}' { var_t *u = $7; $$ = get_typev(RPC_FC_ENCAPSULATED_UNION, $2, tsUNION); if (!u) u = make_var("tagged_union"); u->type = make_type(RPC_FC_NON_ENCAPSULATED_UNION, NULL); u->type->fields = $9; u->type->defined = TRUE; LINK(u, $5); $$->fields = u; $$->defined = TRUE; } ; version: aNUM { $$ = MAKELONG($1, 0); } | aNUM '.' aNUM { $$ = MAKELONG($1, $3); } ; %% static attr_t *make_attr(enum attr_type type) { attr_t *a = xmalloc(sizeof(attr_t)); a->type = type; a->u.ival = 0; INIT_LINK(a); 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; INIT_LINK(a); 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; INIT_LINK(a); return a; } static expr_t *make_expr(enum expr_type type) { expr_t *e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = NULL; e->u.lval = 0; e->is_const = FALSE; INIT_LINK(e); return e; } static expr_t *make_exprl(enum expr_type type, long val) { expr_t *e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = NULL; e->u.lval = val; e->is_const = FALSE; INIT_LINK(e); /* check for numeric constant */ if (type == EXPR_NUM || type == EXPR_HEXNUM) { e->is_const = TRUE; e->cval = val; } return e; } static expr_t *make_exprs(enum expr_type type, char *val) { expr_t *e; e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = NULL; e->u.sval = val; e->is_const = FALSE; INIT_LINK(e); /* check for predefined constants */ if (type == EXPR_IDENTIFIER) { var_t *c = find_const(val, 0); if (c) { e->u.sval = c->name; free(val); e->is_const = TRUE; e->cval = c->lval; } } return e; } static expr_t *make_exprt(enum expr_type type, typeref_t *tref, expr_t *expr) { expr_t *e; e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = expr; e->u.tref = tref; e->is_const = FALSE; INIT_LINK(e); /* check for cast of constant expression */ if (type == EXPR_CAST && expr->is_const) { e->is_const = TRUE; e->cval = expr->cval; } return e; } static expr_t *make_expr1(enum expr_type type, expr_t *expr) { expr_t *e; e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = expr; e->u.lval = 0; e->is_const = FALSE; INIT_LINK(e); /* check for compile-time optimization */ if (expr->is_const) { e->is_const = TRUE; switch (type) { case EXPR_NEG: e->cval = -expr->cval; break; case EXPR_NOT: e->cval = ~expr->cval; break; default: e->is_const = FALSE; break; } } return e; } static expr_t *make_expr2(enum expr_type type, expr_t *expr1, expr_t *expr2) { expr_t *e; e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = expr1; e->u.ext = expr2; e->is_const = FALSE; INIT_LINK(e); /* check for compile-time optimization */ if (expr1->is_const && expr2->is_const) { e->is_const = TRUE; switch (type) { case EXPR_ADD: e->cval = expr1->cval + expr2->cval; break; case EXPR_SUB: e->cval = expr1->cval - expr2->cval; break; case EXPR_MUL: e->cval = expr1->cval * expr2->cval; break; case EXPR_DIV: e->cval = expr1->cval / expr2->cval; break; case EXPR_OR: e->cval = expr1->cval | expr2->cval; break; case EXPR_AND: e->cval = expr1->cval & expr2->cval; break; case EXPR_SHL: e->cval = expr1->cval << expr2->cval; break; case EXPR_SHR: e->cval = expr1->cval >> expr2->cval; break; default: e->is_const = FALSE; break; } } return e; } static expr_t *make_expr3(enum expr_type type, expr_t *expr1, expr_t *expr2, expr_t *expr3) { expr_t *e; e = xmalloc(sizeof(expr_t)); e->type = type; e->ref = expr1; e->u.ext = expr2; e->ext2 = expr3; e->is_const = FALSE; INIT_LINK(e); /* check for compile-time optimization */ if (expr1->is_const && expr2->is_const && expr3->is_const) { e->is_const = TRUE; switch (type) { case EXPR_COND: e->cval = expr1->cval ? expr2->cval : expr3->cval; break; default: e->is_const = FALSE; break; } } return e; } static type_t *make_type(unsigned char type, type_t *ref) { type_t *t = xmalloc(sizeof(type_t)); t->name = NULL; t->type = type; t->ref = ref; t->rname = NULL; t->attrs = NULL; t->funcs = NULL; t->fields = NULL; t->ignore = parse_only; t->is_const = FALSE; t->sign = 0; t->defined = FALSE; t->written = FALSE; t->typelib_idx = -1; INIT_LINK(t); return t; } static typeref_t *make_tref(char *name, type_t *ref) { typeref_t *t = xmalloc(sizeof(typeref_t)); t->name = name; t->ref = ref; t->uniq = ref ? 0 : 1; return t; } static typeref_t *uniq_tref(typeref_t *ref) { typeref_t *t = ref; type_t *tp; if (t->uniq) return t; tp = make_type(0, t->ref); tp->name = t->name; t->name = NULL; t->ref = tp; t->uniq = 1; return t; } static type_t *type_ref(typeref_t *ref) { type_t *t = ref->ref; if (ref->name) free(ref->name); free(ref); return t; } static void set_type(var_t *v, typeref_t *ref, expr_t *arr) { v->type = ref->ref; v->tname = ref->name; ref->name = NULL; free(ref); v->array = arr; } static ifref_t *make_ifref(type_t *iface) { ifref_t *l = xmalloc(sizeof(ifref_t)); l->iface = iface; l->attrs = NULL; INIT_LINK(l); return l; } static var_t *make_var(char *name) { var_t *v = xmalloc(sizeof(var_t)); v->name = name; v->ptr_level = 0; v->type = NULL; v->tname = NULL; v->attrs = NULL; v->array = NULL; v->eval = NULL; v->lval = 0; INIT_LINK(v); return v; } static func_t *make_func(var_t *def, var_t *args) { func_t *f = xmalloc(sizeof(func_t)); f->def = def; f->args = args; f->ignore = parse_only; f->idx = -1; INIT_LINK(f); return f; } static class_t *make_class(char *name) { class_t *c = xmalloc(sizeof(class_t)); c->name = name; c->attrs = NULL; c->ifaces = NULL; INIT_LINK(c); return c; } #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 { char *name; type_t *type; int t; struct rtype *next; }; struct rtype *type_hash[HASHMAX]; static type_t *reg_type(type_t *type, char *name, int t) { struct rtype *nt; int hash; if (!name) { yyerror("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; return type; } /* determine pointer type from attrs */ static unsigned char get_pointer_type( type_t *type ) { int t; if (is_attr( type->attrs, ATTR_STRING )) { type_t *t = type; while( t->type == 0 && t->ref ) t = t->ref; switch( t->type ) { case RPC_FC_CHAR: return RPC_FC_C_CSTRING; case RPC_FC_WCHAR: return RPC_FC_C_WSTRING; } } t = get_attrv( type->attrs, ATTR_POINTERTYPE ); if (t) return t; return RPC_FC_FP; } static type_t *reg_types(type_t *type, var_t *names, int t) { type_t *ptr = type; int ptrc = 0; while (names) { var_t *next = NEXT_LINK(names); if (names->name) { type_t *cur = ptr; int cptr = names->ptr_level; if (cptr > ptrc) { while (cptr > ptrc) { int t = get_pointer_type( cur ); cur = ptr = make_type(t, cur); ptrc++; } } else { while (cptr < ptrc) { cur = cur->ref; cptr++; } } reg_type(cur, names->name, t); } free(names); names = next; } return type; } static type_t *find_type(char *name, int t) { struct rtype *cur = type_hash[hash_ident(name)]; while (cur && (cur->t != t || strcmp(cur->name, name))) cur = cur->next; if (!cur) { yyerror("type %s not found\n", name); return NULL; } return cur->type; } static type_t *find_type2(char *name, int t) { type_t *tp = find_type(name, t); free(name); return tp; } int is_type(const char *name) { struct rtype *cur = type_hash[hash_ident(name)]; while (cur && (cur->t || strcmp(cur->name, name))) cur = cur->next; if (cur) return TRUE; return FALSE; } static type_t *get_type(unsigned char type, char *name, int t) { struct rtype *cur = NULL; type_t *tp; if (name) { cur = type_hash[hash_ident(name)]; while (cur && (cur->t != t || strcmp(cur->name, name))) cur = cur->next; } if (cur) { free(name); return cur->type; } tp = make_type(type, NULL); tp->name = name; if (!name) return tp; return reg_type(tp, name, t); } static type_t *get_typev(unsigned char type, var_t *name, int t) { char *sname = NULL; if (name) { sname = name->name; free(name); } return get_type(type, sname, t); } static int get_struct_type(var_t *field) { int has_pointer = 0; int has_conformant_array = 0; int has_conformant_string = 0; while (field) { type_t *t = field->type; /* get the base type */ while( (t->type == 0) && t->ref ) t = t->ref; switch (t->type) { /* * RPC_FC_BYTE, RPC_FC_STRUCT, etc * Simple types don't effect the type of struct. * A struct containing a simple struct is still a simple struct. * So long as we can block copy the data, we return RPC_FC_STRUCT. */ case 0: /* void pointer */ case RPC_FC_BYTE: case RPC_FC_CHAR: case RPC_FC_SMALL: case RPC_FC_USMALL: case RPC_FC_WCHAR: case RPC_FC_SHORT: case RPC_FC_USHORT: case RPC_FC_LONG: case RPC_FC_ULONG: case RPC_FC_INT3264: case RPC_FC_UINT3264: case RPC_FC_HYPER: case RPC_FC_FLOAT: case RPC_FC_DOUBLE: case RPC_FC_STRUCT: case RPC_FC_ENUM16: case RPC_FC_ENUM32: break; case RPC_FC_UP: case RPC_FC_FP: has_pointer = 1; break; case RPC_FC_CARRAY: has_conformant_array = 1; break; case RPC_FC_C_CSTRING: case RPC_FC_C_WSTRING: has_conformant_string = 1; break; /* * Propagate member attributes * a struct should be at least as complex as its member */ case RPC_FC_CVSTRUCT: has_conformant_string = 1; has_pointer = 1; break; case RPC_FC_CPSTRUCT: has_conformant_array = 1; has_pointer = 1; break; case RPC_FC_CSTRUCT: has_conformant_array = 1; break; case RPC_FC_PSTRUCT: has_pointer = 1; break; default: fprintf(stderr,"Unknown struct member %s with type (0x%02x)\n", field->name, t->type); /* fallthru - treat it as complex */ /* as soon as we see one of these these members, it's bogus... */ case RPC_FC_IP: case RPC_FC_ENCAPSULATED_UNION: case RPC_FC_NON_ENCAPSULATED_UNION: case RPC_FC_TRANSMIT_AS: case RPC_FC_REPRESENT_AS: case RPC_FC_PAD: case RPC_FC_EMBEDDED_COMPLEX: case RPC_FC_BOGUS_STRUCT: return RPC_FC_BOGUS_STRUCT; } field = NEXT_LINK(field); } if( has_conformant_string && has_pointer ) return RPC_FC_CVSTRUCT; if( has_conformant_array && has_pointer ) return RPC_FC_CPSTRUCT; if( has_conformant_array ) return RPC_FC_CSTRUCT; if( has_pointer ) return RPC_FC_PSTRUCT; return RPC_FC_STRUCT; } /***** 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) { yyerror("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; } static var_t *find_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) yyerror("constant %s not found\n", name); return NULL; } return cur->var; }