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36 results

max30001.py

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  • Forked from card10 / firmware
    Source project has a limited visibility.
    obj.c 8.73 KiB
    #include <stdint.h>
    #include <stdlib.h>
    #include <stdio.h>
    #include <stdarg.h>
    #include <string.h>
    #include <assert.h>
    
    #include "nlr.h"
    #include "misc.h"
    #include "mpconfig.h"
    #include "qstr.h"
    #include "obj.h"
    #include "runtime0.h"
    #include "runtime.h"
    #include "map.h"
    
    mp_obj_type_t *mp_obj_get_type(mp_obj_t o_in) {
        if (MP_OBJ_IS_SMALL_INT(o_in)) {
            return (mp_obj_t)&int_type;
        } else if (MP_OBJ_IS_QSTR(o_in)) {
            return (mp_obj_t)&str_type;
        } else {
            mp_obj_base_t *o = o_in;
            return (mp_obj_t)o->type;
        }
    }
    
    const char *mp_obj_get_type_str(mp_obj_t o_in) {
        return mp_obj_get_type(o_in)->name;
    }
    
    void printf_wrapper(void *env, const char *fmt, ...) {
        va_list args;
        va_start(args, fmt);
        vprintf(fmt, args);
        va_end(args);
    }
    
    void mp_obj_print_helper(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
        mp_obj_type_t *type = mp_obj_get_type(o_in);
        if (type->print != NULL) {
            type->print(print, env, o_in, kind);
        } else {
            print(env, "<%s>", type->name);
        }
    }
    
    void mp_obj_print(mp_obj_t o_in, mp_print_kind_t kind) {
        mp_obj_print_helper(printf_wrapper, NULL, o_in, kind);
    }
    
    // helper function to print an exception with traceback
    void mp_obj_print_exception(mp_obj_t exc) {
        if (MP_OBJ_IS_TYPE(exc, &exception_type)) {
            machine_uint_t n, *values;
            mp_obj_exception_get_traceback(exc, &n, &values);
            if (n > 0) {
                printf("Traceback (most recent call last):\n");
                for (int i = n - 3; i >= 0; i -= 3) {
    #if MICROPY_ENABLE_SOURCE_LINE
                    printf("  File \"%s\", line %d, in %s\n", qstr_str(values[i]), (int)values[i + 1], qstr_str(values[i + 2]));
    #else
                    printf("  File \"%s\", in %s\n", qstr_str(values[i]), qstr_str(values[i + 2]));
    #endif
                }
            }
        }
        mp_obj_print(exc, PRINT_REPR);
        printf("\n");
    }
    
    bool mp_obj_is_callable(mp_obj_t o_in) {
        return mp_obj_get_type(o_in)->call != NULL;
    }
    
    machine_int_t mp_obj_hash(mp_obj_t o_in) {
        if (o_in == mp_const_false) {
            return 0; // needs to hash to same as the integer 0, since False==0
        } else if (o_in == mp_const_true) {
            return 1; // needs to hash to same as the integer 1, since True==1
        } else if (MP_OBJ_IS_SMALL_INT(o_in)) {
            return MP_OBJ_SMALL_INT_VALUE(o_in);
        } else if (MP_OBJ_IS_STR(o_in)) {
            return mp_obj_str_get_hash(o_in);
        } else if (MP_OBJ_IS_TYPE(o_in, &none_type)) {
            return (machine_int_t)o_in;
        } else {
            assert(0);
            return 0;
        }
    }
    
    // this function implements the '==' operator (and so the inverse of '!=')
    // from the python language reference:
    // "The objects need not have the same type. If both are numbers, they are converted
    // to a common type. Otherwise, the == and != operators always consider objects of
    // different types to be unequal."
    // note also that False==0 and True==1 are true expressions
    bool mp_obj_equal(mp_obj_t o1, mp_obj_t o2) {
        if (o1 == o2) {
            return true;
        } else if (MP_OBJ_IS_SMALL_INT(o1) || MP_OBJ_IS_SMALL_INT(o2)) {
            if (MP_OBJ_IS_SMALL_INT(o1) && MP_OBJ_IS_SMALL_INT(o2)) {
                return false;
            } else {
                if (MP_OBJ_IS_SMALL_INT(o2)) {
                    mp_obj_t temp = o1; o1 = o2; o2 = temp;
                }
                // o1 is the SMALL_INT, o2 is not
                mp_small_int_t val = MP_OBJ_SMALL_INT_VALUE(o1);
                if (o2 == mp_const_false) {
                    return val == 0;
                } else if (o2 == mp_const_true) {
                    return val == 1;
                } else if (MP_OBJ_IS_TYPE(o2, &int_type)) {
                    // If o2 is long int, dispatch to its virtual methods
                    mp_obj_base_t *o = o2;
                    if (o->type->binary_op != NULL) {
                        mp_obj_t r = o->type->binary_op(RT_COMPARE_OP_EQUAL, o2, o1);
                        return r == mp_const_true ? true : false;
                    }
                }
                return false;
            }
        } else if (MP_OBJ_IS_STR(o1) && MP_OBJ_IS_STR(o2)) {
            return mp_obj_str_equal(o1, o2);
        } else {
            mp_obj_base_t *o = o1;
            if (o->type->binary_op != NULL) {
                mp_obj_t r = o->type->binary_op(RT_COMPARE_OP_EQUAL, o1, o2);
                if (r != MP_OBJ_NULL) {
                    return r == mp_const_true ? true : false;
                }
            }
            // TODO: Debugging helper
            printf("Equality for '%s' and '%s' types not yet implemented\n", mp_obj_get_type_str(o1), mp_obj_get_type_str(o2));
            assert(0);
            return false;
        }
    }
    
    bool mp_obj_less(mp_obj_t o1, mp_obj_t o2) {
        if (MP_OBJ_IS_SMALL_INT(o1) && MP_OBJ_IS_SMALL_INT(o2)) {
            mp_small_int_t i1 = MP_OBJ_SMALL_INT_VALUE(o1);
            mp_small_int_t i2 = MP_OBJ_SMALL_INT_VALUE(o2);
            return i1 < i2;
        } else {
            assert(0);
            return false;
        }
    }
    
    machine_int_t mp_obj_get_int(mp_obj_t arg) {
        if (arg == mp_const_false) {
            return 0;
        } else if (arg == mp_const_true) {
            return 1;
        } else if (MP_OBJ_IS_SMALL_INT(arg)) {
            return MP_OBJ_SMALL_INT_VALUE(arg);
        } else if (MP_OBJ_IS_TYPE(arg, &int_type)) {
            return mp_obj_int_get_checked(arg);
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "can't convert %s to int", mp_obj_get_type_str(arg)));
        }
    }
    
    #if MICROPY_ENABLE_FLOAT
    machine_float_t mp_obj_get_float(mp_obj_t arg) {
        if (arg == mp_const_false) {
            return 0;
        } else if (arg == mp_const_true) {
            return 1;
        } else if (MP_OBJ_IS_SMALL_INT(arg)) {
            return MP_OBJ_SMALL_INT_VALUE(arg);
        } else if (MP_OBJ_IS_TYPE(arg, &float_type)) {
            return mp_obj_float_get(arg);
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "can't convert %s to float", mp_obj_get_type_str(arg)));
        }
    }
    
    void mp_obj_get_complex(mp_obj_t arg, mp_float_t *real, mp_float_t *imag) {
        if (arg == mp_const_false) {
            *real = 0;
            *imag = 0;
        } else if (arg == mp_const_true) {
            *real = 1;
            *imag = 0;
        } else if (MP_OBJ_IS_SMALL_INT(arg)) {
            *real = MP_OBJ_SMALL_INT_VALUE(arg);
            *imag = 0;
        } else if (MP_OBJ_IS_TYPE(arg, &float_type)) {
            *real = mp_obj_float_get(arg);
            *imag = 0;
        } else if (MP_OBJ_IS_TYPE(arg, &complex_type)) {
            mp_obj_complex_get(arg, real, imag);
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "can't convert %s to complex", mp_obj_get_type_str(arg)));
        }
    }
    #endif
    
    mp_obj_t *mp_obj_get_array_fixed_n(mp_obj_t o_in, machine_int_t n) {
        if (MP_OBJ_IS_TYPE(o_in, &tuple_type) || MP_OBJ_IS_TYPE(o_in, &list_type)) {
            uint seq_len;
            mp_obj_t *seq_items;
            if (MP_OBJ_IS_TYPE(o_in, &tuple_type)) {
                mp_obj_tuple_get(o_in, &seq_len, &seq_items);
            } else {
                mp_obj_list_get(o_in, &seq_len, &seq_items);
            }
            if (seq_len != n) {
                nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_IndexError, "requested length %d but object has length %d", n, seq_len));
            }
            return seq_items;
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "object '%s' is not a tuple or list", mp_obj_get_type_str(o_in)));
        }
    }
    
    uint mp_get_index(const mp_obj_type_t *type, machine_uint_t len, mp_obj_t index) {
        // TODO False and True are considered 0 and 1 for indexing purposes
        if (MP_OBJ_IS_SMALL_INT(index)) {
            int i = MP_OBJ_SMALL_INT_VALUE(index);
            if (i < 0) {
                i += len;
            }
            if (i < 0 || i >= len) {
                nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_IndexError, "%s index out of range", type->name));
            }
            return i;
        } else {
            nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "%s indices must be integers, not %s", type->name, mp_obj_get_type_str(index)));
        }
    }
    
    // may return MP_OBJ_NULL
    mp_obj_t mp_obj_len_maybe(mp_obj_t o_in) {
        mp_small_int_t len = 0;
        if (MP_OBJ_IS_STR(o_in)) {
            len = mp_obj_str_get_len(o_in);
        } else if (MP_OBJ_IS_TYPE(o_in, &tuple_type)) {
            uint seq_len;
            mp_obj_t *seq_items;
            mp_obj_tuple_get(o_in, &seq_len, &seq_items);
            len = seq_len;
        } else if (MP_OBJ_IS_TYPE(o_in, &list_type)) {
            uint seq_len;
            mp_obj_t *seq_items;
            mp_obj_list_get(o_in, &seq_len, &seq_items);
            len = seq_len;
        } else if (MP_OBJ_IS_TYPE(o_in, &dict_type)) {
            len = mp_obj_dict_len(o_in);
        } else if (MP_OBJ_IS_TYPE(o_in, &array_type)) {
            len = mp_obj_array_len(o_in);
        } else {
            return MP_OBJ_NULL;
        }
        return MP_OBJ_NEW_SMALL_INT(len);
    }
    
    // Return input argument. Useful as .getiter for objects which are
    // their own iterators, etc.
    mp_obj_t mp_identity(mp_obj_t self) {
        return self;
    }