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_SET,
 117     STAT_STOP,
 118     STAT_UNTIL,
 119     STAT_WHILE,
 120     STAT_WHILELOOP
 121 } statement_type_t;
 122
 123 typedef struct _statement_t {
 124     statement_type_t type;
 125     struct _statement_t *next;
 126 } statement_t;
 127
 128 typedef struct {
 129     statement_t stat;
 130     member_expression_t *expr;
 131     BOOL is_strict;
 132 } call_statement_t;
 133
 134 typedef struct {
 135     statement_t stat;
 136     member_expression_t *member_expr;
 137     expression_t *value_expr;
 138 } assign_statement_t;
 139
 140 typedef struct _dim_decl_t {
 141     const WCHAR *name;
 142     struct _dim_decl_t *next;
 143 } dim_decl_t;
 144
 145 typedef struct _dim_statement_t {
 146     statement_t stat;
 147     dim_decl_t *dim_decls;
 148 } dim_statement_t;
 149
 150 typedef struct _arg_decl_t {
 151     const WCHAR *name;
 152     BOOL by_ref;
 153     struct _arg_decl_t *next;
 154 } arg_decl_t;
 155
 156 typedef struct _function_decl_t {
 157     const WCHAR *name;
 158     function_type_t type;
 159     BOOL is_public;
 160     arg_decl_t *args;
 161     statement_t *body;
 162     struct _function_decl_t *next;
 163     struct _function_decl_t *next_prop_func;
 164 } function_decl_t;
 165
 166 typedef struct {
 167     statement_t stat;
 168     function_decl_t *func_decl;
 169 } function_statement_t;
 170
 171 typedef struct _class_prop_decl_t {
 172     BOOL is_public;
 173     const WCHAR *name;
 174     struct _class_prop_decl_t *next;
 175 } class_prop_decl_t;
 176
 177 typedef struct _class_decl_t {
 178     const WCHAR *name;
 179     function_decl_t *funcs;
 180     class_prop_decl_t *props;
 181     struct _class_decl_t *next;
 182 } class_decl_t;
 183
 184 typedef struct _elseif_decl_t {
 185     expression_t *expr;
 186     statement_t *stat;
 187     struct _elseif_decl_t *next;
 188 } elseif_decl_t;
 189
 190 typedef struct {
 191     statement_t stat;
 192     expression_t *expr;
 193     statement_t *if_stat;
 194     elseif_decl_t *elseifs;
 195     statement_t *else_stat;
 196 } if_statement_t;
 197
 198 typedef struct {
 199     statement_t stat;
 200     expression_t *expr;
 201     statement_t *body;
 202 } while_statement_t;
 203
 204 typedef struct {
 205     statement_t stat;
 206     const WCHAR *identifier;
 207     expression_t *from_expr;
 208     expression_t *to_expr;
 209     expression_t *step_expr;
 210     statement_t *body;
 211 } forto_statement_t;
 212
 213 typedef struct {
 214     statement_t stat;
 215     const WCHAR *identifier;
 216     expression_t *group_expr;
 217     statement_t *body;
 218 } foreach_statement_t;
 219
 220 typedef struct {
 221     statement_t stat;
 222     BOOL resume_next;
 223 } onerror_statement_t;
 224
 225 typedef struct _const_decl_t {
 226     const WCHAR *name;
 227     expression_t *value_expr;
 228     struct _const_decl_t *next;
 229 } const_decl_t;
 230
 231 typedef struct {
 232     statement_t stat;
 233     const_decl_t *decls;
 234 } const_statement_t;
 235
 236 typedef struct {
 237     const WCHAR *code;
 238     const WCHAR *ptr;
 239     const WCHAR *end;
 240
 241     BOOL option_explicit;
 242     BOOL parse_complete;
 243     HRESULT hres;
 244
 245     int last_token;
 246     unsigned last_nl;
 247
 248     statement_t *stats;
 249     statement_t *stats_tail;
 250     class_decl_t *class_decls;
 251
 252     vbsheap_t heap;
 253 } parser_ctx_t;
 254
 255 HRESULT parse_script(parser_ctx_t*,const WCHAR*) DECLSPEC_HIDDEN;
 256 void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
 257 int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
 258 void *parser_alloc(parser_ctx_t*,size_t) DECLSPEC_HIDDEN;