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_list_t {
 142     unsigned val;
 143     struct _dim_list_t *next;
 144 } dim_list_t;
 145
 146 typedef struct _dim_decl_t {
 147     const WCHAR *name;
 148     BOOL is_array;
 149     BOOL is_public; /* Used only for class members. */
 150     dim_list_t *dims;
 151     struct _dim_decl_t *next;
 152 } dim_decl_t;
 153
 154 typedef struct _dim_statement_t {
 155     statement_t stat;
 156     dim_decl_t *dim_decls;
 157 } dim_statement_t;
 158
 159 typedef struct _arg_decl_t {
 160     const WCHAR *name;
 161     BOOL by_ref;
 162     struct _arg_decl_t *next;
 163 } arg_decl_t;
 164
 165 typedef struct _function_decl_t {
 166     const WCHAR *name;
 167     function_type_t type;
 168     BOOL is_public;
 169     arg_decl_t *args;
 170     statement_t *body;
 171     struct _function_decl_t *next;
 172     struct _function_decl_t *next_prop_func;
 173 } function_decl_t;
 174
 175 typedef struct {
 176     statement_t stat;
 177     function_decl_t *func_decl;
 178 } function_statement_t;
 179
 180 typedef struct _class_decl_t {
 181     const WCHAR *name;
 182     function_decl_t *funcs;
 183     dim_decl_t *props;
 184     struct _class_decl_t *next;
 185 } class_decl_t;
 186
 187 typedef struct _elseif_decl_t {
 188     expression_t *expr;
 189     statement_t *stat;
 190     struct _elseif_decl_t *next;
 191 } elseif_decl_t;
 192
 193 typedef struct {
 194     statement_t stat;
 195     expression_t *expr;
 196     statement_t *if_stat;
 197     elseif_decl_t *elseifs;
 198     statement_t *else_stat;
 199 } if_statement_t;
 200
 201 typedef struct {
 202     statement_t stat;
 203     expression_t *expr;
 204     statement_t *body;
 205 } while_statement_t;
 206
 207 typedef struct {
 208     statement_t stat;
 209     const WCHAR *identifier;
 210     expression_t *from_expr;
 211     expression_t *to_expr;
 212     expression_t *step_expr;
 213     statement_t *body;
 214 } forto_statement_t;
 215
 216 typedef struct {
 217     statement_t stat;
 218     const WCHAR *identifier;
 219     expression_t *group_expr;
 220     statement_t *body;
 221 } foreach_statement_t;
 222
 223 typedef struct {
 224     statement_t stat;
 225     BOOL resume_next;
 226 } onerror_statement_t;
 227
 228 typedef struct _const_decl_t {
 229     const WCHAR *name;
 230     expression_t *value_expr;
 231     struct _const_decl_t *next;
 232 } const_decl_t;
 233
 234 typedef struct {
 235     statement_t stat;
 236     const_decl_t *decls;
 237 } const_statement_t;
 238
 239 typedef struct _case_clausule_t {
 240     expression_t *expr;
 241     statement_t *stat;
 242     struct _case_clausule_t *next;
 243 } case_clausule_t;
 244
 245 typedef struct {
 246     statement_t stat;
 247     expression_t *expr;
 248     case_clausule_t *case_clausules;
 249 } select_statement_t;
 250
 251 typedef struct {
 252     const WCHAR *code;
 253     const WCHAR *ptr;
 254     const WCHAR *end;
 255
 256     BOOL option_explicit;
 257     BOOL parse_complete;
 258     BOOL is_html;
 259     HRESULT hres;
 260
 261     int last_token;
 262     unsigned last_nl;
 263
 264     statement_t *stats;
 265     statement_t *stats_tail;
 266     class_decl_t *class_decls;
 267
 268     heap_pool_t heap;
 269 } parser_ctx_t;
 270
 271 HRESULT parse_script(parser_ctx_t*,const WCHAR*,const WCHAR*) DECLSPEC_HIDDEN;
 272 void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
 273 int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
 274 void *parser_alloc(parser_ctx_t*,size_t) DECLSPEC_HIDDEN;