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_CONCAT,
  24     EXPR_DIV,
  25     EXPR_DOUBLE,
  26     EXPR_EMPTY,
  27     EXPR_EQUAL,
  28     EXPR_EQV,
  29     EXPR_EXP,
  30     EXPR_GT,
  31     EXPR_GTEQ,
  32     EXPR_IDIV,
  33     EXPR_IMP,
  34     EXPR_IS,
  35     EXPR_LT,
  36     EXPR_LTEQ,
  37     EXPR_ME,
  38     EXPR_MEMBER,
  39     EXPR_MOD,
  40     EXPR_MUL,
  41     EXPR_NEG,
  42     EXPR_NEQUAL,
  43     EXPR_NEW,
  44     EXPR_NOT,
  45     EXPR_NOTHING,
  46     EXPR_NULL,
  47     EXPR_OR,
  48     EXPR_STRING,
  49     EXPR_SUB,
  50     EXPR_ULONG,
  51     EXPR_USHORT,
  52     EXPR_XOR
  53 } expression_type_t;
  54
  55 typedef struct _expression_t {
  56     expression_type_t type;
  57     struct _expression_t *next;
  58 } expression_t;
  59
  60 typedef struct {
  61     expression_t expr;
  62     VARIANT_BOOL value;
  63 } bool_expression_t;
  64
  65 typedef struct {
  66     expression_t expr;
  67     LONG value;
  68 } int_expression_t;
  69
  70 typedef struct {
  71     expression_t expr;
  72     double value;
  73 } double_expression_t;
  74
  75 typedef struct {
  76     expression_t expr;
  77     const WCHAR *value;
  78 } string_expression_t;
  79
  80 typedef struct {
  81     expression_t expr;
  82     expression_t *subexpr;
  83 } unary_expression_t;
  84
  85 typedef struct {
  86     expression_t expr;
  87     expression_t *left;
  88     expression_t *right;
  89 } binary_expression_t;
  90
  91 typedef struct {
  92     expression_t expr;
  93     expression_t *obj_expr;
  94     const WCHAR *identifier;
  95     expression_t *args;
  96 } member_expression_t;
  97
  98 typedef enum {
  99     STAT_ASSIGN,
 100     STAT_CALL,
 101     STAT_CONST,
 102     STAT_DIM,
 103     STAT_DOUNTIL,
 104     STAT_DOWHILE,
 105     STAT_EXITDO,
 106     STAT_EXITFOR,
 107     STAT_EXITFUNC,
 108     STAT_EXITPROP,
 109     STAT_EXITSUB,
 110     STAT_FORTO,
 111     STAT_FUNC,
 112     STAT_IF,
 113     STAT_ONERROR,
 114     STAT_SET,
 115     STAT_STOP,
 116     STAT_UNTIL,
 117     STAT_WHILE,
 118     STAT_WHILELOOP
 119 } statement_type_t;
 120
 121 typedef struct _statement_t {
 122     statement_type_t type;
 123     struct _statement_t *next;
 124 } statement_t;
 125
 126 typedef struct {
 127     statement_t stat;
 128     member_expression_t *expr;
 129 } call_statement_t;
 130
 131 typedef struct {
 132     statement_t stat;
 133     member_expression_t *member_expr;
 134     expression_t *value_expr;
 135 } assign_statement_t;
 136
 137 typedef struct _dim_decl_t {
 138     const WCHAR *name;
 139     struct _dim_decl_t *next;
 140 } dim_decl_t;
 141
 142 typedef struct _dim_statement_t {
 143     statement_t stat;
 144     dim_decl_t *dim_decls;
 145 } dim_statement_t;
 146
 147 typedef struct _arg_decl_t {
 148     const WCHAR *name;
 149     BOOL by_ref;
 150     struct _arg_decl_t *next;
 151 } arg_decl_t;
 152
 153 typedef struct _function_decl_t {
 154     const WCHAR *name;
 155     function_type_t type;
 156     BOOL is_public;
 157     arg_decl_t *args;
 158     statement_t *body;
 159     struct _function_decl_t *next;
 160     struct _function_decl_t *next_prop_func;
 161 } function_decl_t;
 162
 163 typedef struct {
 164     statement_t stat;
 165     function_decl_t *func_decl;
 166 } function_statement_t;
 167
 168 typedef struct _class_prop_decl_t {
 169     BOOL is_public;
 170     const WCHAR *name;
 171     struct _class_prop_decl_t *next;
 172 } class_prop_decl_t;
 173
 174 typedef struct _class_decl_t {
 175     const WCHAR *name;
 176     function_decl_t *funcs;
 177     class_prop_decl_t *props;
 178     struct _class_decl_t *next;
 179 } class_decl_t;
 180
 181 typedef struct _elseif_decl_t {
 182     expression_t *expr;
 183     statement_t *stat;
 184     struct _elseif_decl_t *next;
 185 } elseif_decl_t;
 186
 187 typedef struct {
 188     statement_t stat;
 189     expression_t *expr;
 190     statement_t *if_stat;
 191     elseif_decl_t *elseifs;
 192     statement_t *else_stat;
 193 } if_statement_t;
 194
 195 typedef struct {
 196     statement_t stat;
 197     expression_t *expr;
 198     statement_t *body;
 199 } while_statement_t;
 200
 201 typedef struct {
 202     statement_t stat;
 203     const WCHAR *identifier;
 204     expression_t *from_expr;
 205     expression_t *to_expr;
 206     expression_t *step_expr;
 207     statement_t *body;
 208 } forto_statement_t;
 209
 210 typedef struct {
 211     statement_t stat;
 212     BOOL resume_next;
 213 } onerror_statement_t;
 214
 215 typedef struct _const_decl_t {
 216     const WCHAR *name;
 217     expression_t *value_expr;
 218     struct _const_decl_t *next;
 219 } const_decl_t;
 220
 221 typedef struct {
 222     statement_t stat;
 223     const_decl_t *decls;
 224 } const_statement_t;
 225
 226 typedef struct {
 227     const WCHAR *code;
 228     const WCHAR *ptr;
 229     const WCHAR *end;
 230
 231     BOOL option_explicit;
 232     BOOL parse_complete;
 233     HRESULT hres;
 234
 235     int last_token;
 236     unsigned last_nl;
 237
 238     statement_t *stats;
 239     statement_t *stats_tail;
 240     class_decl_t *class_decls;
 241
 242     vbsheap_t heap;
 243 } parser_ctx_t;
 244
 245 HRESULT parse_script(parser_ctx_t*,const WCHAR*) DECLSPEC_HIDDEN;
 246 void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
 247 int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
 248 void *parser_alloc(parser_ctx_t*,size_t) DECLSPEC_HIDDEN;