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/*
* Copyright (C) 2020-2021 Jo-Philipp Wich <jo@mein.io>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __LIB_H_
#define __LIB_H_
#include "vm.h"
#include "lexer.h"
typedef struct {
const char *name;
uc_cfn_ptr_t func;
} uc_cfunction_list_t;
extern const uc_cfunction_list_t uc_stdlib_functions[];
void uc_load_stdlib(uc_value_t *scope);
bool format_source_context(uc_stringbuf_t *buf, uc_source_t *src, size_t off, bool compact);
bool format_error_context(uc_stringbuf_t *buf, uc_source_t *src, uc_value_t *stacktrace, size_t off);
/* vm helper */
static inline void *
_uc_get_self(uc_vm_t *vm, const char *expected_type)
{
return ucv_ressource_dataptr(vm->callframes.entries[vm->callframes.count - 1].ctx, expected_type);
}
#define uc_get_self(...) _uc_get_self(vm, __VA_ARGS__)
static inline uc_value_t *
_uc_get_arg(uc_vm_t *vm, size_t nargs, size_t n)
{
if (n >= nargs)
return NULL;
return uc_vm_stack_peek(vm, nargs - n - 1);
}
#define uc_get_arg(...) _uc_get_arg(vm, nargs, __VA_ARGS__)
#define uc_call(nargs) uc_vm_call(vm, false, nargs)
#define uc_push_val(val) uc_vm_stack_push(vm, val)
#define uc_pop_val() uc_vm_stack_pop(vm)
/* value helper */
static inline uc_value_t *
uc_alloc_ressource(uc_ressource_type_t *type, void *data)
{
return ucv_ressource_new(type, data);
}
static inline uc_type_t
uc_to_number(uc_value_t *v, int64_t *n, double *d)
{
return uc_cast_number(v, n, d);
}
static inline double
uc_to_double(uc_value_t *v)
{
int64_t n;
double d;
return (uc_cast_number(v, &n, &d) == UC_DOUBLE) ? d : (double)n;
}
static inline int64_t
uc_to_int64(uc_value_t *v)
{
int64_t n;
double d;
return (uc_cast_number(v, &n, &d) == UC_DOUBLE) ? (int64_t)d : n;
}
/* ressource type helper */
static inline uc_ressource_type_t *
_uc_declare_type(uc_vm_t *vm, const char *name, const uc_cfunction_list_t *list, size_t len, void (*freefn)(void *))
{
uc_value_t *proto = ucv_object_new(NULL);
while (len-- > 0)
ucv_object_add(proto, list[len].name,
ucv_cfunction_new(list[len].name, list[len].func));
return ucv_ressource_type_add(vm, name, proto, freefn);
}
#define uc_declare_type(vm, name, functions, freefn) \
_uc_declare_type(vm, name, functions, ARRAY_SIZE(functions), freefn)
/* function helper */
#define uc_add_function(object, name, function) \
ucv_object_add(object, name, ucv_cfunction_new(name, function))
static inline bool
_uc_add_functions(uc_value_t *object, const uc_cfunction_list_t *list, size_t len)
{
bool rv = true;
while (len-- > 0)
rv &= uc_add_function(object, list[len].name, list[len].func);
return rv;
}
#define uc_add_functions(object, functions) \
_uc_add_functions(object, functions, ARRAY_SIZE(functions))
#endif /* __LIB_H_ */
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