array_object/convert/
from_string.rs

1use crate::adaptor::*;
2use crate::error::ArrayObjectError;
3use crate::misc::Product;
4use crate::storage::*;
5
6macro_rules! from_text {
7    ($($ty:ty),*) => {
8        $(
9            impl From<$ty> for ArrayObject {
10                fn from(val: $ty) -> Self {
11                    let data: Vec<u8> = val.to_string().into_bytes().to_vec();
12                    Self {
13                        data,
14                        shape: vec![],
15                        datatype: DataType::String,
16                    }
17                }
18            }
19            impl From<&$ty> for ArrayObject {
20                fn from(val: &$ty) -> Self {
21                    let data: Vec<u8> = val.to_string().into_bytes().to_vec();
22                    Self {
23                        data,
24                        shape: vec![],
25                        datatype: DataType::String,
26                    }
27                }
28            }
29            impl From<Vec<$ty>> for ArrayObject {
30                fn from(val: Vec<$ty>) -> Self {
31                    let shape = vec![val.len() as u64];
32                    let val: Vec<_> = val.into_iter().map(|x| x.to_string()).collect();
33                    let data = val.into_iter().map(|x| x.as_bytes().to_vec()).collect::<Vec<_>>().join(&255u8);
34                    Self {
35                        data,
36                        shape,
37                        datatype: DataType::String,
38                    }
39                }
40            }
41            impl From<&Vec<$ty>> for ArrayObject {
42                fn from(val: &Vec<$ty>) -> Self {
43                    let shape = vec![val.len() as u64];
44                    let val: Vec<_> = val.into_iter().map(|x| x.to_string()).collect();
45                    let data = val.into_iter().map(|x| x.as_bytes().to_vec()).collect::<Vec<_>>().join(&255u8);
46                    Self {
47                        data,
48                        shape,
49                        datatype: DataType::String,
50                    }
51                }
52            }
53            impl<const N: usize> From<[$ty; N]> for ArrayObject {
54                fn from(val: [$ty; N]) -> Self {
55                    val.to_vec().into()
56                }
57            }
58            impl From<&[$ty]> for ArrayObject {
59                fn from(val: &[$ty]) -> Self {
60                    val.to_vec().into()
61                }
62            }
63            impl TryFrom<VecShape<$ty>> for ArrayObject {
64                type Error = ArrayObjectError;
65                fn try_from(VecShape(val, shape): VecShape<$ty>) -> Result<Self, Self::Error> {
66                    if val.len() != shape.product() as usize {
67                        return Err(ArrayObjectError::NumberOfElementsMismatch(val.len(), shape.product() as usize));
68                    }
69                    if shape.len() > 15 {
70                        return Err(ArrayObjectError::TooLargeDimension(shape.len()));
71                    }
72                    let mut temp: ArrayObject = val.into();
73                    temp.shape = shape;
74                    Ok(temp)
75                }
76            }
77        )*
78    };
79}
80
81from_text!(String, &str);
array_object/convert/from_string.rs

array_object/convert/
from_string.rs
