git.m6w6.name Git - m6w6/ext-psi/blob - src/types/num_exp.h

   1 /*******************************************************************************
   2  Copyright (c) 2016, Michael Wallner <mike@php.net>.
   3  All rights reserved.
   4
   5  Redistribution and use in source and binary forms, with or without
   6  modification, are permitted provided that the following conditions are met:
   7
   8      * Redistributions of source code must retain the above copyright notice,
   9        this list of conditions and the following disclaimer.
  10      * Redistributions in binary form must reproduce the above copyright
  11        notice, this list of conditions and the following disclaimer in the
  12        documentation and/or other materials provided with the distribution.
  13
  14  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  15  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  17  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
  18  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  20  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  21  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  22  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24 *******************************************************************************/
  25
  26 #ifndef PSI_TYPES_NUM_EXP_H
  27 #define PSI_TYPES_NUM_EXP_H
  28
  29 #include "token.h"
  30 #include "Zend/zend_types.h"
  31
  32 struct psi_data;
  33 struct psi_token;
  34 struct psi_impl;
  35 struct psi_const;
  36 struct psi_decl_enum_item;
  37 struct psi_let_exp;
  38 struct psi_set_exp;
  39 struct psi_call_frame;
  40
  41 struct psi_num_exp {
  42         struct psi_token *token;
  43         token_t op;
  44         union {
  45                 struct {
  46                         struct psi_num_exp *lhs;
  47                         struct psi_num_exp *rhs;
  48                 } b;
  49                 struct {
  50                         struct psi_decl_type *typ;
  51                         struct psi_num_exp *num;
  52                 } c;
  53                 struct {
  54                         struct psi_num_exp *cond;
  55                         struct psi_num_exp *truthy;
  56                         struct psi_num_exp *falsy;
  57                 } t;
  58                 struct psi_num_exp *u;
  59                 struct psi_number *n;
  60         } data;
  61         token_t (*calc)(token_t t1, impl_val *v1, token_t t2, impl_val *v2, impl_val *res);
  62 };
  63
  64 struct psi_num_exp *psi_num_exp_init_ternary(token_t op,
  65                 struct psi_num_exp *cond, struct psi_num_exp *truthy,
  66                 struct psi_num_exp *falsy);
  67 struct psi_num_exp *psi_num_exp_init_binary(token_t op,
  68                 struct psi_num_exp *lhs, struct psi_num_exp *rhs);
  69 struct psi_num_exp *psi_num_exp_init_unary(token_t op,
  70                 struct psi_num_exp *u);
  71 struct psi_num_exp *psi_num_exp_init_num(struct psi_number *n);
  72 struct psi_num_exp *psi_num_exp_init_cast(struct psi_decl_type *typ,
  73                 struct psi_num_exp *num);
  74 void psi_num_exp_free(struct psi_num_exp **c_ptr);
  75
  76 struct psi_num_exp *psi_num_exp_copy(struct psi_num_exp *exp);
  77 void psi_num_exp_dump(int fd, struct psi_num_exp *exp);
  78 bool psi_num_exp_validate(struct psi_data *data, struct psi_num_exp *exp,
  79                 struct psi_impl *impl, struct psi_decl *cb_decl,
  80                 struct psi_let_exp *current_let, struct psi_set_exp *current_set,
  81                 struct psi_decl_enum *current_enum);
  82
  83 token_t psi_num_exp_exec(struct psi_num_exp *exp, impl_val *res,
  84                 struct psi_call_frame *frame, HashTable *defs);
  85
  86 #include <assert.h>
  87
  88 static inline zend_long psi_long_num_exp(struct psi_num_exp *exp,
  89                 struct psi_call_frame *frame, HashTable *defs) {
  90         impl_val val = {0};
  91
  92         switch (psi_num_exp_exec(exp, &val, frame, defs)) {
  93         case PSI_T_UINT8:       return val.u8;
  94         case PSI_T_UINT16:      return val.u16;
  95         case PSI_T_UINT32:      return val.u32;
  96         case PSI_T_UINT64:      return val.u64; /* FIXME */
  97         case PSI_T_INT8:        return val.i8;
  98         case PSI_T_INT16:       return val.i16;
  99         case PSI_T_INT32:       return val.i32;
 100         case PSI_T_INT64:       return val.i64;
 101         case PSI_T_FLOAT:       return val.fval;
 102         case PSI_T_DOUBLE:      return val.dval;
 103         default:
 104                 assert(0);
 105         }
 106         return 0;
 107 }
 108
 109
 110 #endif