dlls/vbscript/parse.h

   1 /*
   2  * Copyright 2011 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 typedef enum {
  20     EXPR_ADD,
  21     EXPR_AND,
  22     EXPR_BOOL,
  23     EXPR_BRACKETS,
  24     EXPR_CONCAT,
  25     EXPR_DIV,
  26     EXPR_DOUBLE,
  27     EXPR_EMPTY,
  28     EXPR_EQUAL,
  29     EXPR_EQV,
  30     EXPR_EXP,
  31     EXPR_GT,
  32     EXPR_GTEQ,
  33     EXPR_IDIV,
  34     EXPR_IMP,
  35     EXPR_IS,
  36     EXPR_LT,
  37     EXPR_LTEQ,
  38     EXPR_ME,
  39     EXPR_MEMBER,
  40     EXPR_MOD,
  41     EXPR_MUL,
  42     EXPR_NEG,
  43     EXPR_NEQUAL,
  44     EXPR_NEW,
  45     EXPR_NOT,
  46     EXPR_NOTHING,
  47     EXPR_NULL,
  48     EXPR_OR,
  49     EXPR_STRING,
  50     EXPR_SUB,
  51     EXPR_ULONG,
  52     EXPR_USHORT,
  53     EXPR_XOR
  54 } expression_type_t;
  55
  56 typedef struct _expression_t {
  57     expression_type_t type;
  58     struct _expression_t *next;
  59 } expression_t;
  60
  61 typedef struct {
  62     expression_t expr;
  63     VARIANT_BOOL value;
  64 } bool_expression_t;
  65
  66 typedef struct {
  67     expression_t expr;
  68     LONG value;
  69 } int_expression_t;
  70
  71 typedef struct {
  72     expression_t expr;
  73     double value;
  74 } double_expression_t;
  75
  76 typedef struct {
  77     expression_t expr;
  78     const WCHAR *value;
  79 } string_expression_t;
  80
  81 typedef struct {
  82     expression_t expr;
  83     expression_t *subexpr;
  84 } unary_expression_t;
  85
  86 typedef struct {
  87     expression_t expr;
  88     expression_t *left;
  89     expression_t *right;
  90 } binary_expression_t;
  91
  92 typedef struct {
  93     expression_t expr;
  94     expression_t *obj_expr;
  95     const WCHAR *identifier;
  96     expression_t *args;
  97 } member_expression_t;
  98
  99 typedef enum {
 100     STAT_ASSIGN,
 101     STAT_CALL,
 102     STAT_CONST,
 103     STAT_DIM,
 104     STAT_DOUNTIL,
 105     STAT_DOWHILE,
 106     STAT_EXITDO,
 107     STAT_EXITFOR,
 108     STAT_EXITFUNC,
 109     STAT_EXITPROP,
 110     STAT_EXITSUB,
 111     STAT_FOREACH,
 112     STAT_FORTO,
 113     STAT_FUNC,
 114     STAT_IF,
 115     STAT_ONERROR,
 116     STAT_SELECT,
 117     STAT_SET,
 118     STAT_STOP,
 119     STAT_UNTIL,
 120     STAT_WHILE,
 121     STAT_WHILELOOP
 122 } statement_type_t;
 123
 124 typedef struct _statement_t {
 125     statement_type_t type;
 126     struct _statement_t *next;
 127 } statement_t;
 128
 129 typedef struct {
 130     statement_t stat;
 131     member_expression_t *expr;
 132     BOOL is_strict;
 133 } call_statement_t;
 134
 135 typedef struct {
 136     statement_t stat;
 137     member_expression_t *member_expr;
 138     expression_t *value_expr;
 139 } assign_statement_t;
 140
 141 typedef struct _dim_decl_t {
 142     const WCHAR *name;
 143     struct _dim_decl_t *next;
 144 } dim_decl_t;
 145
 146 typedef struct _dim_statement_t {
 147     statement_t stat;
 148     dim_decl_t *dim_decls;
 149 } dim_statement_t;
 150
 151 typedef struct _arg_decl_t {
 152     const WCHAR *name;
 153     BOOL by_ref;
 154     struct _arg_decl_t *next;
 155 } arg_decl_t;
 156
 157 typedef struct _function_decl_t {
 158     const WCHAR *name;
 159     function_type_t type;
 160     BOOL is_public;
 161     arg_decl_t *args;
 162     statement_t *body;
 163     struct _function_decl_t *next;
 164     struct _function_decl_t *next_prop_func;
 165 } function_decl_t;
 166
 167 typedef struct {
 168     statement_t stat;
 169     function_decl_t *func_decl;
 170 } function_statement_t;
 171
 172 typedef struct _class_prop_decl_t {
 173     BOOL is_public;
 174     const WCHAR *name;
 175     struct _class_prop_decl_t *next;
 176 } class_prop_decl_t;
 177
 178 typedef struct _class_decl_t {
 179     const WCHAR *name;
 180     function_decl_t *funcs;
 181     class_prop_decl_t *props;
 182     struct _class_decl_t *next;
 183 } class_decl_t;
 184
 185 typedef struct _elseif_decl_t {
 186     expression_t *expr;
 187     statement_t *stat;
 188     struct _elseif_decl_t *next;
 189 } elseif_decl_t;
 190
 191 typedef struct {
 192     statement_t stat;
 193     expression_t *expr;
 194     statement_t *if_stat;
 195     elseif_decl_t *elseifs;
 196     statement_t *else_stat;
 197 } if_statement_t;
 198
 199 typedef struct {
 200     statement_t stat;
 201     expression_t *expr;
 202     statement_t *body;
 203 } while_statement_t;
 204
 205 typedef struct {
 206     statement_t stat;
 207     const WCHAR *identifier;
 208     expression_t *from_expr;
 209     expression_t *to_expr;
 210     expression_t *step_expr;
 211     statement_t *body;
 212 } forto_statement_t;
 213
 214 typedef struct {
 215     statement_t stat;
 216     const WCHAR *identifier;
 217     expression_t *group_expr;
 218     statement_t *body;
 219 } foreach_statement_t;
 220
 221 typedef struct {
 222     statement_t stat;
 223     BOOL resume_next;
 224 } onerror_statement_t;
 225
 226 typedef struct _const_decl_t {
 227     const WCHAR *name;
 228     expression_t *value_expr;
 229     struct _const_decl_t *next;
 230 } const_decl_t;
 231
 232 typedef struct {
 233     statement_t stat;
 234     const_decl_t *decls;
 235 } const_statement_t;
 236
 237 typedef struct _case_clausule_t {
 238     expression_t *expr;
 239     statement_t *stat;
 240     struct _case_clausule_t *next;
 241 } case_clausule_t;
 242
 243 typedef struct {
 244     statement_t stat;
 245     expression_t *expr;
 246     case_clausule_t *case_clausules;
 247 } select_statement_t;
 248
 249 typedef struct {
 250     const WCHAR *code;
 251     const WCHAR *ptr;
 252     const WCHAR *end;
 253
 254     BOOL option_explicit;
 255     BOOL parse_complete;
 256     HRESULT hres;
 257
 258     int last_token;
 259     unsigned last_nl;
 260
 261     statement_t *stats;
 262     statement_t *stats_tail;
 263     class_decl_t *class_decls;
 264
 265     vbsheap_t heap;
 266 } parser_ctx_t;
 267
 268 HRESULT parse_script(parser_ctx_t*,const WCHAR*) DECLSPEC_HIDDEN;
 269 void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
 270 int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
 271 void *parser_alloc(parser_ctx_t*,size_t) DECLSPEC_HIDDEN;