nix_api_value.h

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#ifndef NIX_API_VALUE_H
#define NIX_API_VALUE_H
 
#include "nix_api_util.h"
#include "stdbool.h"
#include "stddef.h"
#include "stdint.h"
 
#ifdef __cplusplus
extern "C" {
#endif
// cffi start
 
// Type definitions
typedef enum {
  NIX_TYPE_THUNK,
  NIX_TYPE_INT,
  NIX_TYPE_FLOAT,
  NIX_TYPE_BOOL,
  NIX_TYPE_STRING,
  NIX_TYPE_PATH,
  NIX_TYPE_NULL,
  NIX_TYPE_ATTRS,
  NIX_TYPE_LIST,
  NIX_TYPE_FUNCTION,
  NIX_TYPE_EXTERNAL
} ValueType;
 
// forward declarations
typedef void Value;
typedef struct State State;
// type defs
typedef struct BindingsBuilder BindingsBuilder;
 
typedef struct PrimOp PrimOp;
typedef struct ExternalValue ExternalValue;
 
typedef void (*PrimOpFun)(State *state, int pos, Value **args, Value *v);
 
PrimOp *nix_alloc_primop(nix_c_context *context, PrimOpFun fun, int arity,
                         const char *name, const char **args, const char *doc);
 
nix_err nix_register_primop(nix_c_context *context, PrimOp *primOp);
// Function prototypes
 
Value *nix_alloc_value(nix_c_context *context, State *state);
ValueType nix_get_type(nix_c_context *context, const Value *value);
const char *nix_get_typename(nix_c_context *context, const Value *value);
 
bool nix_get_bool(nix_c_context *context, const Value *value);
const char *nix_get_string(nix_c_context *context, const Value *value);
const char *nix_get_path_string(nix_c_context *context, const Value *value);
unsigned int nix_get_list_size(nix_c_context *context, const Value *value);
unsigned int nix_get_attrs_size(nix_c_context *context, const Value *value);
double nix_get_float(nix_c_context *context, const Value *value);
int64_t nix_get_int(nix_c_context *context, const Value *value);
ExternalValue *nix_get_external(nix_c_context *context, Value *);
 
Value *nix_get_list_byidx(nix_c_context *context, const Value *value,
                          State *state, unsigned int ix);
Value *nix_get_attr_byname(nix_c_context *context, const Value *value,
                           State *state, const char *name);
 
bool nix_has_attr_byname(nix_c_context *context, const Value *value,
                         State *state, const char *name);
 
Value *nix_get_attr_byidx(nix_c_context *context, const Value *value,
                          State *state, unsigned int i, const char **name);
 
const char *nix_get_attr_name_byidx(nix_c_context *context, const Value *value,
                                    State *state, unsigned int i);
nix_err nix_set_bool(nix_c_context *context, Value *value, bool b);
nix_err nix_set_string(nix_c_context *context, Value *value, const char *str);
nix_err nix_set_path_string(nix_c_context *context, Value *value,
                            const char *str);
nix_err nix_set_float(nix_c_context *context, Value *value, double d);
nix_err nix_set_int(nix_c_context *context, Value *value, int64_t i);
nix_err nix_set_null(nix_c_context *context, Value *value);
nix_err nix_set_external(nix_c_context *context, Value *value,
                         ExternalValue *val);
nix_err nix_make_list(nix_c_context *context, State *s, Value *value,
                      unsigned int size);
nix_err nix_set_list_byidx(nix_c_context *context, Value *value,
                           unsigned int ix, Value *elem);
nix_err nix_make_attrs(nix_c_context *context, Value *value,
                       BindingsBuilder *b);
nix_err nix_set_primop(nix_c_context *context, Value *value, PrimOp *op);
nix_err nix_copy_value(nix_c_context *context, Value *value, Value *source);
BindingsBuilder *nix_make_bindings_builder(nix_c_context *context, State *state,
                                           size_t capacity);
nix_err nix_bindings_builder_insert(nix_c_context *context,
                                    BindingsBuilder *builder, const char *name,
                                    Value *value);
void nix_bindings_builder_free(BindingsBuilder *builder);
// cffi end
#ifdef __cplusplus
}
#endif
 
#endif // NIX_API_VALUE_H