num_exp: RPN calculator
[m6w6/ext-psi] / src / types / number.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
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24 *******************************************************************************/
25
26 #ifndef PSI_TYPES_NUMBER_H
27 #define PSI_TYPES_NUMBER_H
28
29
30 struct psi_data;
31 struct psi_token;
32 struct psi_impl;
33 struct psi_const;
34 struct psi_decl_enum_item;
35 struct psi_let_exp;
36 struct psi_set_exp;
37 struct psi_call_frame;
38
39 struct psi_number {
40 struct psi_token *token;
41 token_t type;
42 union {
43 char *numb;
44 impl_val ival;
45 struct psi_const *cnst;
46 struct psi_decl_var *dvar;
47 struct psi_decl_enum_item *enm;
48 } data;
49 };
50
51 struct psi_number *psi_number_init(token_t t, void *num);
52 struct psi_number *psi_number_copy(struct psi_number *exp);
53 void psi_number_free(struct psi_number **exp_ptr);
54 void psi_number_dump(int fd, struct psi_number *exp);
55
56 bool psi_number_validate(struct psi_data *data, struct psi_number *exp,
57 struct psi_impl *impl, struct psi_decl *cb_decl,
58 struct psi_let_exp *current_let, struct psi_set_exp *current_set,
59 struct psi_decl_enum *current_enum);
60
61 token_t psi_number_eval(struct psi_number *exp, impl_val *res, struct psi_call_frame *frame);
62
63 #endif