343 lines
14 KiB
C
343 lines
14 KiB
C
// All Micro Python objects are at least this type
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// It must be of pointer size
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typedef machine_ptr_t mp_obj_t;
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typedef machine_const_ptr_t mp_const_obj_t;
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// Integers that fit in a pointer have this type
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// (do we need to expose this in the public API?)
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typedef machine_int_t mp_small_int_t;
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// The machine floating-point type used for float and complex numbers
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#if MICROPY_ENABLE_FLOAT
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typedef machine_float_t mp_float_t;
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#endif
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// Anything that wants to be a Micro Python object must have
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// mp_obj_base_t as its first member (except NULL and small ints)
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struct _mp_obj_type_t;
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struct _mp_obj_base_t {
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const struct _mp_obj_type_t *type;
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};
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typedef struct _mp_obj_base_t mp_obj_base_t;
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// The NULL object is used to indicate the absence of an object
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// It *cannot* be used when an mp_obj_t is expected, except where explicitly allowed
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#define MP_OBJ_NULL ((mp_obj_t)NULL)
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// These macros check for small int, qstr or object, and access small int and qstr values
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// - xxxx...xxx1: a small int, bits 1 and above are the value
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// - xxxx...xx10: a qstr, bits 2 and above are the value
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// - xxxx...xx00: a pointer to an mp_obj_base_t
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#define MP_OBJ_IS_SMALL_INT(o) ((((mp_small_int_t)(o)) & 1) != 0)
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#define MP_OBJ_IS_QSTR(o) ((((mp_small_int_t)(o)) & 3) == 2)
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#define MP_OBJ_IS_OBJ(o) ((((mp_small_int_t)(o)) & 3) == 0)
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#define MP_OBJ_IS_TYPE(o, t) (MP_OBJ_IS_OBJ(o) && (((mp_obj_base_t*)(o))->type == (t)))
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#define MP_OBJ_SMALL_INT_VALUE(o) (((mp_small_int_t)(o)) >> 1)
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#define MP_OBJ_NEW_SMALL_INT(small_int) ((mp_obj_t)(((small_int) << 1) | 1))
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#define MP_OBJ_QSTR_VALUE(o) (((mp_small_int_t)(o)) >> 2)
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#define MP_OBJ_NEW_QSTR(qstr) ((mp_obj_t)((((machine_uint_t)qstr) << 2) | 2))
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// These macros are used to declare and define constant function objects
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// You can put "static" in front of the definitions to make them local
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#define MP_DECLARE_CONST_FUN_OBJ(obj_name) extern const mp_obj_fun_native_t obj_name
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#define MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, is_kw, n_args_min, n_args_max, fun_name) const mp_obj_fun_native_t obj_name = {{&fun_native_type}, is_kw, n_args_min, n_args_max, (void *)fun_name}
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#define MP_DEFINE_CONST_FUN_OBJ_0(obj_name, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, false, 0, 0, (mp_fun_0_t)fun_name)
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#define MP_DEFINE_CONST_FUN_OBJ_1(obj_name, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, false, 1, 1, (mp_fun_1_t)fun_name)
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#define MP_DEFINE_CONST_FUN_OBJ_2(obj_name, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, false, 2, 2, (mp_fun_2_t)fun_name)
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#define MP_DEFINE_CONST_FUN_OBJ_3(obj_name, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, false, 3, 3, (mp_fun_3_t)fun_name)
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#define MP_DEFINE_CONST_FUN_OBJ_VAR(obj_name, n_args_min, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, false, n_args_min, (~((machine_uint_t)0)), (mp_fun_var_t)fun_name)
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#define MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(obj_name, n_args_min, n_args_max, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, false, n_args_min, n_args_max, (mp_fun_var_t)fun_name)
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#define MP_DEFINE_CONST_FUN_OBJ_KW(obj_name, fun_name) MP_DEFINE_CONST_FUN_OBJ_VOID_PTR(obj_name, true, 0, (~((machine_uint_t)0)), (mp_fun_kw_t)fun_name)
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// These macros are used to declare and define constant staticmethond and classmethod objects
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// You can put "static" in front of the definitions to make them local
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#define MP_DECLARE_CONST_STATICMETHOD_OBJ(obj_name) extern const mp_obj_staticmethod_t obj_name
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#define MP_DECLARE_CONST_CLASSMETHOD_OBJ(obj_name) extern const mp_obj_classmethod_t obj_name
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#define MP_DEFINE_CONST_STATICMETHOD_OBJ(obj_name, fun_name) const mp_obj_staticmethod_t obj_name = {{&mp_type_staticmethod}, fun_name}
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#define MP_DEFINE_CONST_CLASSMETHOD_OBJ(obj_name, fun_name) const mp_obj_classmethod_t obj_name = {{&mp_type_classmethod}, fun_name}
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// Need to declare this here so we are not dependent on map.h
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struct _mp_map_t;
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struct _mp_map_elem_t;
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enum _mp_map_lookup_kind_t;
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// Type definitions for methods
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typedef mp_obj_t (*mp_fun_0_t)(void);
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typedef mp_obj_t (*mp_fun_1_t)(mp_obj_t);
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typedef mp_obj_t (*mp_fun_2_t)(mp_obj_t, mp_obj_t);
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typedef mp_obj_t (*mp_fun_3_t)(mp_obj_t, mp_obj_t, mp_obj_t);
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typedef mp_obj_t (*mp_fun_t)(void);
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typedef mp_obj_t (*mp_fun_var_t)(int n, const mp_obj_t *);
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typedef mp_obj_t (*mp_fun_kw_t)(mp_obj_t, struct _mp_map_t*);
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typedef void (*mp_print_fun_t)(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o);
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typedef mp_obj_t (*mp_make_new_fun_t)(mp_obj_t type_in, int n_args, const mp_obj_t *args); // args are in reverse order in the array
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typedef mp_obj_t (*mp_call_n_fun_t)(mp_obj_t fun, int n_args, const mp_obj_t *args); // args are in reverse order in the array
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typedef mp_obj_t (*mp_call_n_kw_fun_t)(mp_obj_t fun, int n_args, int n_kw, const mp_obj_t *args); // args are in reverse order in the array
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typedef mp_obj_t (*mp_unary_op_fun_t)(int op, mp_obj_t);
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typedef mp_obj_t (*mp_binary_op_fun_t)(int op, mp_obj_t, mp_obj_t);
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typedef void (*mp_load_attr_fun_t)(mp_obj_t self_in, qstr attr, mp_obj_t *dest); // for fail, do nothing; for attr, dest[1] = value; for method, dest[0] = self, dest[1] = method
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typedef bool (*mp_store_attr_fun_t)(mp_obj_t self_in, qstr attr, mp_obj_t value); // return true if store succeeded
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typedef struct _mp_method_t {
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const char *name;
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mp_const_obj_t fun;
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} mp_method_t;
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// Buffer protocol
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typedef struct _buffer_info_t {
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// if we'd bother to support various versions of structure
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// (with different number of fields), we can distinguish
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// them with ver = sizeof(struct). Cons: overkill for *micro*?
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//int ver; // ?
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void *buf;
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machine_int_t len;
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// Rationale: have array.array and have SIMD operations on them
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// Cons: users can pass item size to processing functions themselves,
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// though that's not "plug&play"
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// int itemsize;
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// Rationale: to load arbitrary-sized sprites directly to LCD
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// Cons: a bit adhoc usecase
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// int stride;
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} buffer_info_t;
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#define BUFFER_READ (1)
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#define BUFFER_WRITE (2)
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#define BUFFER_RW (BUFFER_READ | BUFFER_WRITE)
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typedef struct _mp_buffer_p_t {
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machine_int_t (*get_buffer)(mp_obj_t obj, buffer_info_t *bufinfo, int flags);
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} mp_buffer_p_t;
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// Stream protocol
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typedef struct _mp_stream_p_t {
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// On error, functions should return -1 and fill in *errcode (values are
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// implementation-dependent, but will be exposed to user, e.g. via exception).
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machine_int_t (*read)(mp_obj_t obj, void *buf, machine_uint_t size, int *errcode);
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machine_int_t (*write)(mp_obj_t obj, const void *buf, machine_uint_t size, int *errcode);
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// add seek() ?
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} mp_stream_p_t;
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struct _mp_obj_type_t {
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mp_obj_base_t base;
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const char *name;
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mp_print_fun_t print;
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mp_make_new_fun_t make_new; // to make an instance of the type
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mp_call_n_fun_t call_n;
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mp_call_n_kw_fun_t call_n_kw;
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mp_unary_op_fun_t unary_op; // can return NULL if op not supported
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mp_binary_op_fun_t binary_op; // can return NULL if op not supported
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mp_fun_1_t getiter;
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mp_fun_1_t iternext;
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// Alternatively, pointer(s) to interfaces to save space
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// in mp_obj_type_t at the expense of extra pointer and extra dereference
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// when actually used.
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mp_buffer_p_t buffer_p;
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mp_stream_p_t stream_p;
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const mp_method_t *methods;
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mp_load_attr_fun_t load_attr;
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mp_store_attr_fun_t store_attr;
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// these are for dynamically created types (classes)
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mp_obj_t bases_tuple;
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mp_obj_t locals_dict;
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/*
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What we might need to add here:
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store_subscr list dict
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len str tuple list map
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abs float complex
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hash bool int none str
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equal int str
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less int
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get_array_n tuple list
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unpack seq list tuple
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*/
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};
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typedef struct _mp_obj_type_t mp_obj_type_t;
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// Constant objects, globally accessible
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extern const mp_obj_type_t mp_const_type;
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extern const mp_obj_t mp_const_none;
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extern const mp_obj_t mp_const_false;
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extern const mp_obj_t mp_const_true;
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extern const mp_obj_t mp_const_empty_tuple;
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extern const mp_obj_t mp_const_ellipsis;
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extern const mp_obj_t mp_const_stop_iteration; // special object indicating end of iteration (not StopIteration exception!)
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// General API for objects
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mp_obj_t mp_obj_new_type(qstr name, mp_obj_t bases_tuple, mp_obj_t locals_dict);
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mp_obj_t mp_obj_new_none(void);
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mp_obj_t mp_obj_new_bool(bool value);
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mp_obj_t mp_obj_new_cell(mp_obj_t obj);
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mp_obj_t mp_obj_new_int(machine_int_t value);
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mp_obj_t mp_obj_new_str(qstr qstr);
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#if MICROPY_ENABLE_FLOAT
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mp_obj_t mp_obj_new_float(mp_float_t val);
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mp_obj_t mp_obj_new_complex(mp_float_t real, mp_float_t imag);
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#endif
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mp_obj_t mp_obj_new_exception(qstr id);
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mp_obj_t mp_obj_new_exception_msg(qstr id, const char *msg);
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mp_obj_t mp_obj_new_exception_msg_1_arg(qstr id, const char *fmt, const char *a1);
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mp_obj_t mp_obj_new_exception_msg_2_args(qstr id, const char *fmt, const char *a1, const char *a2);
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mp_obj_t mp_obj_new_exception_msg_varg(qstr id, const char *fmt, ...); // counts args by number of % symbols in fmt, excluding %%; can only handle void* sizes (ie no float/double!)
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mp_obj_t mp_obj_new_range(int start, int stop, int step);
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mp_obj_t mp_obj_new_range_iterator(int cur, int stop, int step);
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mp_obj_t mp_obj_new_fun_bc(int n_args, uint n_state, const byte *code);
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mp_obj_t mp_obj_new_fun_asm(uint n_args, void *fun);
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mp_obj_t mp_obj_new_gen_wrap(uint n_locals, uint n_stack, mp_obj_t fun);
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mp_obj_t mp_obj_new_gen_instance(const byte *bytecode, uint n_state, int n_args, const mp_obj_t *args);
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mp_obj_t mp_obj_new_closure(mp_obj_t fun, mp_obj_t closure_tuple);
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mp_obj_t mp_obj_new_tuple(uint n, const mp_obj_t *items);
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mp_obj_t mp_obj_new_tuple_reverse(uint n, const mp_obj_t *items);
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mp_obj_t mp_obj_new_list(uint n, mp_obj_t *items);
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mp_obj_t mp_obj_new_list_reverse(uint n, mp_obj_t *items);
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mp_obj_t mp_obj_new_dict(int n_args);
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mp_obj_t mp_obj_new_set(int n_args, mp_obj_t *items);
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mp_obj_t mp_obj_new_slice(mp_obj_t start, mp_obj_t stop, mp_obj_t step);
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mp_obj_t mp_obj_new_bound_meth(mp_obj_t self, mp_obj_t meth);
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mp_obj_t mp_obj_new_module(qstr module_name);
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mp_obj_t mp_obj_get_type(mp_obj_t o_in);
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const char *mp_obj_get_type_str(mp_obj_t o_in);
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void mp_obj_print_helper(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in);
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void mp_obj_print(mp_obj_t o);
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bool mp_obj_is_callable(mp_obj_t o_in);
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machine_int_t mp_obj_hash(mp_obj_t o_in);
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bool mp_obj_equal(mp_obj_t o1, mp_obj_t o2);
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bool mp_obj_less(mp_obj_t o1, mp_obj_t o2);
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machine_int_t mp_obj_get_int(mp_obj_t arg);
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#if MICROPY_ENABLE_FLOAT
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mp_float_t mp_obj_get_float(mp_obj_t self_in);
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void mp_obj_get_complex(mp_obj_t self_in, mp_float_t *real, mp_float_t *imag);
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#endif
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qstr mp_obj_get_qstr(mp_obj_t arg);
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mp_obj_t *mp_obj_get_array_fixed_n(mp_obj_t o, machine_int_t n);
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uint mp_get_index(const mp_obj_type_t *type, machine_uint_t len, mp_obj_t index);
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mp_obj_t mp_obj_len_maybe(mp_obj_t o_in); /* may return NULL */
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// none
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extern const mp_obj_type_t none_type;
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// bool
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extern const mp_obj_type_t bool_type;
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#define MP_BOOL(x) (x ? mp_const_true : mp_const_false)
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// cell
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mp_obj_t mp_obj_cell_get(mp_obj_t self_in);
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void mp_obj_cell_set(mp_obj_t self_in, mp_obj_t obj);
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// int
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extern const mp_obj_type_t int_type;
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// exception
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extern const mp_obj_type_t exception_type;
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qstr mp_obj_exception_get_type(mp_obj_t self_in);
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// str
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extern const mp_obj_type_t str_type;
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qstr mp_obj_str_get(mp_obj_t self_in);
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#if MICROPY_ENABLE_FLOAT
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// float
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extern const mp_obj_type_t float_type;
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mp_float_t mp_obj_float_get(mp_obj_t self_in);
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mp_obj_t mp_obj_float_binary_op(int op, mp_float_t lhs_val, mp_obj_t rhs);
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// complex
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extern const mp_obj_type_t complex_type;
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void mp_obj_complex_get(mp_obj_t self_in, mp_float_t *real, mp_float_t *imag);
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mp_obj_t mp_obj_complex_binary_op(int op, mp_float_t lhs_real, mp_float_t lhs_imag, mp_obj_t rhs_in);
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#endif
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// tuple
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extern const mp_obj_type_t tuple_type;
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void mp_obj_tuple_get(mp_obj_t self_in, uint *len, mp_obj_t **items);
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// list
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extern const mp_obj_type_t list_type;
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mp_obj_t mp_obj_list_append(mp_obj_t self_in, mp_obj_t arg);
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void mp_obj_list_get(mp_obj_t self_in, uint *len, mp_obj_t **items);
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void mp_obj_list_store(mp_obj_t self_in, mp_obj_t index, mp_obj_t value);
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// dict
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extern const mp_obj_type_t dict_type;
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uint mp_obj_dict_len(mp_obj_t self_in);
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mp_obj_t mp_obj_dict_store(mp_obj_t self_in, mp_obj_t key, mp_obj_t value);
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struct _mp_map_t *mp_obj_dict_get_map(mp_obj_t self_in);
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// set
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extern const mp_obj_type_t set_type;
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void mp_obj_set_store(mp_obj_t self_in, mp_obj_t item);
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// slice
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extern const mp_obj_type_t slice_type;
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void mp_obj_slice_get(mp_obj_t self_in, machine_int_t *start, machine_int_t *stop, machine_int_t *step);
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// functions
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typedef struct _mp_obj_fun_native_t { // need this so we can define const objects (to go in ROM)
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mp_obj_base_t base;
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bool is_kw : 1;
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machine_uint_t n_args_min : (sizeof(machine_uint_t) - 1); // inclusive
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machine_uint_t n_args_max; // inclusive
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void *fun;
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// TODO add mp_map_t *globals
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// for const function objects, make an empty, const map
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// such functions won't be able to access the global scope, but that's probably okay
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} mp_obj_fun_native_t;
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extern const mp_obj_type_t fun_native_type;
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extern const mp_obj_type_t fun_bc_type;
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void mp_obj_fun_bc_get(mp_obj_t self_in, int *n_args, uint *n_state, const byte **code);
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// generator
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extern const mp_obj_type_t gen_instance_type;
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// module
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extern const mp_obj_type_t module_type;
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mp_obj_t mp_obj_new_module(qstr module_name);
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struct _mp_map_t *mp_obj_module_get_globals(mp_obj_t self_in);
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// staticmethod and classmethod types; defined here so we can make const versions
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extern const mp_obj_type_t mp_type_staticmethod;
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extern const mp_obj_type_t mp_type_classmethod;
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typedef struct _mp_obj_staticmethod_t {
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mp_obj_base_t base;
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mp_obj_t fun;
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} mp_obj_staticmethod_t;
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typedef struct _mp_obj_classmethod_t {
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mp_obj_base_t base;
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mp_obj_t fun;
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} mp_obj_classmethod_t;
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