array.c

#include "compiler.h"
#include "helpers/vector.h"
#include <assert.h>

struct array_brackets*
array_brackets_new ()
{
    struct array_brackets* brackets = calloc(1, sizeof(struct array_brackets));
    brackets->n_brackets = vector_create(sizeof(struct node*));

    return brackets;
}

void
array_brackets_free (struct array_brackets* brackets)
{
    free(brackets);
}

void
array_brackets_add (struct array_brackets* brackets, struct node* bracket_node)
{
    assert(bracket_node->type == NODE_TYPE_BRACKET);
    vector_push(brackets->n_brackets, &bracket_node);
}

struct vector*
array_brackets_node_vector (struct array_brackets* brackets)
{
    return brackets->n_brackets;
}

size_t
array_brackets_calculate_size_from_index (struct datatype* dtype, struct array_brackets* brackets, int index)
{
    struct vector* array_vec = array_brackets_node_vector(brackets);
    size_t size = dtype->size;
    if (index >= vector_count(array_vec))
    {
        /* char* abc;
           return abc[0]; return abc[1]; */
        return size;
    }

    vector_set_peek_pointer(array_vec, index);
    struct node* array_bracket_node = vector_peek_ptr(array_vec);
    if (!array_bracket_node)
    {
        return 0;
    }

    while (array_bracket_node)
    {
        /* Must be a number to calculate the array size in compile time. */
        assert(array_bracket_node->bracket.inner->type == NODE_TYPE_NUMBER);
        int number = array_bracket_node->bracket.inner->llnum;
        size *= number;
        array_bracket_node = vector_peek_ptr(array_vec);
    }

    return size;
}

size_t
array_brackets_calculate_size (struct datatype* dtype, struct array_brackets* brackets)
{
    return array_brackets_calculate_size_from_index(dtype, brackets, 0);
}

int
array_total_indexes (struct datatype* dtype)
{
    assert(dtype->flags & DATATYPE_FLAG_IS_ARRAY);
    struct array_brackets* brackets = dtype->array.brackets;
    return vector_count(brackets->n_brackets);
}