154 lines
6.7 KiB
C
154 lines
6.7 KiB
C
/****************************************************************************
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* apps/interpreters/bas/bas_value.h
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*
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* Copyright (c) 1999-2014 Michael Haardt
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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****************************************************************************/
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#ifndef __APPS_EXAMPLES_BAS_BAS_VALUE_H
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#define __APPS_EXAMPLES_BAS_BAS_VALUE_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "bas_str.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define VALUE_NEW_INTEGER(this,n) ((this)->type=V_INTEGER,(this)->u.integer=(n))
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#define VALUE_NEW_REAL(this,n) ((this)->type=V_REAL,(this)->u.real=(n))
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#define VALUE_RETYPE(v,t) ((v)->type==(t) ? (v) : Value_retype(v,t))
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#define VALUE_DESTROY(this) assert((this)!=(struct Value*)0); \
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switch ((this)->type) \
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{ \
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case V_ERROR: free((this)->u.error.msg); break; \
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case V_INTEGER: break; \
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case V_NIL: break; \
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case V_REAL: break; \
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case V_STRING: String_destroy(&(this)->u.string); break; \
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case V_VOID: break; \
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default: assert(0); \
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} \
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(this)->type=0;
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum ValueType
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{
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V_ERROR = 1,
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V_INTEGER,
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V_NIL,
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V_REAL,
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V_STRING,
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V_VOID
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};
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struct Value
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{
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enum ValueType type;
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union
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{
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struct /* V_ERROR */
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{
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char *msg;
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long int code;
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} error;
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long int integer; /* V_INTEGER */
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/* V_NIL */
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double real; /* V_REAL */
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struct String string; /* V_STRING */
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/* V_VOID */
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} u;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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extern const enum ValueType Value_commonType[V_VOID + 1][V_VOID + 1];
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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long int lrint(double d);
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double Value_trunc(double d);
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double Value_round(double d);
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long int Value_toi(double d, int *overflow);
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long int Value_vali(const char *s, char **end, int *overflow);
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double Value_vald(const char *s, char **end, int *overflow);
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struct Value *Value_new_NIL(struct Value *this);
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struct Value *Value_new_ERROR(struct Value *this, int code,
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const char *error, ...) printflike(3, 4);
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struct Value *Value_new_INTEGER(struct Value *this, int n);
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struct Value *Value_new_REAL(struct Value *this, double n);
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struct Value *Value_new_STRING(struct Value *this);
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struct Value *Value_new_VOID(struct Value *this);
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struct Value *Value_new_null(struct Value *this, enum ValueType type);
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int Value_isNull(const struct Value *this);
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void Value_destroy(struct Value *this);
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void Value_errorPrefix(struct Value *this, const char *prefix);
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void Value_errorSuffix(struct Value *this, const char *suffix);
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struct Value *Value_new_typeError(struct Value *this, enum ValueType t1,
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enum ValueType t2);
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struct Value *Value_retype(struct Value *this, enum ValueType type);
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struct Value *Value_clone(struct Value *this, const struct Value *original);
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struct Value *Value_uplus(struct Value *this, int calc);
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struct Value *Value_uneg(struct Value *this, int calc);
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struct Value *Value_unot(struct Value *this, int calc);
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struct Value *Value_add(struct Value *this, struct Value *x, int calc);
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struct Value *Value_sub(struct Value *this, struct Value *x, int calc);
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struct Value *Value_mult(struct Value *this, struct Value *x, int calc);
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struct Value *Value_div(struct Value *this, struct Value *x, int calc);
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struct Value *Value_idiv(struct Value *this, struct Value *x, int calc);
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struct Value *Value_mod(struct Value *this, struct Value *x, int calc);
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struct Value *Value_pow(struct Value *this, struct Value *x, int calc);
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struct Value *Value_and(struct Value *this, struct Value *x, int calc);
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struct Value *Value_or(struct Value *this, struct Value *x, int calc);
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struct Value *Value_xor(struct Value *this, struct Value *x, int calc);
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struct Value *Value_eqv(struct Value *this, struct Value *x, int calc);
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struct Value *Value_imp(struct Value *this, struct Value *x, int calc);
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struct Value *Value_lt(struct Value *this, struct Value *x, int calc);
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struct Value *Value_le(struct Value *this, struct Value *x, int calc);
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struct Value *Value_eq(struct Value *this, struct Value *s, int calc);
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struct Value *Value_ge(struct Value *this, struct Value *x, int calc);
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struct Value *Value_gt(struct Value *this, struct Value *x, int calc);
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struct Value *Value_ne(struct Value *this, struct Value *x, int calc);
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int Value_exitFor(struct Value *this, struct Value *limit,
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struct Value *step);
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struct String *Value_toString(struct Value *this, struct String *s,
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char pad, int headingsign, size_t width,
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int commas, int dollar, int dollarleft,
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int precision, int exponent,
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int trailingsign);
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struct Value *Value_toStringUsing(struct Value *this, struct String *s,
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struct String *using, size_t *usingpos);
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struct String *Value_toWrite(struct Value *this, struct String *s);
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struct Value *Value_nullValue(enum ValueType type);
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#endif /* __APPS_EXAMPLES_BAS_BAS_VALUE_H */
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