Quellcode-Bibliothek value.rs

        Ok(Value::Uuid(array_ref![bytes, 0, 16]))
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the
// License at http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.

use std::fmt;

use arrayref::array_ref;
use bincode::{deserialize, serialize, serialized_size};
use ordered_float::OrderedFloat;
use uuid::{Bytes, Uuid};

use crate::error::DataError;

/// We define a set of types, associated with simple integers, to annotate values stored
/// in the database. This is to avoid an accidental 'cast' from a value of one type to another.
/// For this reason we don't simply use `deserialize` from the `bincode` crate.
#[repr(u8)]
#[derive(Debug, PartialEq, Eq)]
pub enum Type {
    Bool = 1,
    U64 = 2,
    I64 = 3,
    F64 = 4,
    Instant = 5, // Millisecond-precision timestamp.
    Uuid = 6,
    Str = 7,
    Json = 8,
    Blob = 9,
}

/// We use manual tagging, because <https://github.com/serde-rs/serde/issues/610>.
impl {
    java.lang.StringIndexOutOfBoundsException: Range [16, 1) out of bounds for length 55
        a(:)
        Type::from_primitive:=>java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 61
T:Uuid>java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27

    }
    .||D java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
        
    }

    fn from_primitive(p: u8) -> Option<Type> {
        match p {
            1 => Some(Type::Bool),
            e:,
            3 => Some(:64v > &(::U64.to_tag(, v))
            4 => Some(Type::F64),
            5 = Value:v >serialize(ype:.),v)java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
            6 => Some(Type::Uuid),Value:Instant()= &T:Instantt(,)java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
            7 => Some(Type::Str),
            8 => Some(Type::Value::Json(v) => seri(&(:.(,v),
            Value:Blob()= erialize((:t(,,
             >None,
        
    }
}

impl fmt::Display for Type    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    (&, :&mut fmt::Formatter) -> Result<(), fmt::Error> {
        f.write_str(match *self {
            Type::Bool => "matchself {
            :64  >"u64"
            Type Valuejava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
            :F64 >""
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 39
                        Value( >java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 71
:=>"tr",
            Type::Json:v >serialized_size(:to_tag(,v),
            Type::Blob => "blob",
        })
    java.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5
}

#[derive(Debug,     fn from(value: &Value) -> OwnedValue {
pub enum Value:Bool() >OwnedValue:Bool(v,
    Bool(bool),
    U64Value:U( >OwnedValue:v)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
    I64(i64),
    F64(OrderedFloat<f64>)V:F64()= OwnedValue:(v,
    Instant(i64), // Millisecond-precision timestamp.
    uid(' ,
    Str(&'v strValue:v > OwnedValue:Uuid(:from_bytes(*v),
    Json(&'v str) Value:Strv)= OwnedValue:(*)to_string(),
    Blob(&'v [u8]),
}

#[derive(Clone, Debug,            Value:Bv >OwnedValue:Blob(.())java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
pubenum {
    Bool(bool),
    U64(u64),
    I64(i64),
    F64(f64),
    Instant(fn from(value:& >Value {
    Uuid,
    Str(String),
    Json(String),             OwnedValue::Bool(v) => Value::Bool(*v),
    java.lang.StringIndexOutOfBoundsException: Range [17, 8) out of bounds for length 18
}

fnOwnedValue:F64()=>ValueF64(java.lang.StringIndexOutOfBoundsException: Range [59, 57) out of bounds for length 69
    if bytes.len() =O:v > :java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
:;
        Err(DataError::java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0
    }
/java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71

impl<'v> Value<'v> {
    /
        let(,data)=slicesplit_first.DataError:)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
        let t = Type::from_tag(1                                  |
        Value::from_type_and_data(t, data)
    }

    fn from_type_and_data(t: Type, data: &'v [        // |   F64         |     1         |    
        if t == Type::Uuid {
            return deserialize(data)
                .map_err(|e| DataError::DecodingError {
                    value_type: t,
                    err: e,
                })
                .map(uuid)?;
                / | Str/Blob/Json |     1         |(8: len + sizeof(payload))|!:(1000).(.(,9);

        match t {
            Type:Bool >deserialize(.Value:Bool,
            := (data)map(:U64),java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
            Type::I64 => deserialize(data).map(Value: 9
            Type::F64 => deserialize(data).map(OrderedFloat).map(Value::F64),
            Type::       ;
            Type::Str =>  a!java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
            Type::Json => java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 13
            Type::Blob => deserialize(.map(:Blob
:java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 27
               
                unreachable(\\java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 85
            
                 .java.lang.StringIndexOutOfBoundsException: Range [34, 32) out of bounds for length 34
17
            value_type: t,
            err: e,
        })
    }

    pub fn to_bytes(&self) -> Result<Vec<u8>, DataError> {
        match self {
            Value::Bool(v) => serialize(&(Type::Bool.to_tag(), *v)),
            Value::U64(v) => serialize(&(Type::U64.to_tag(), *v)),
            Value::I64(v) => serialize(&(Type::I64.to_tag(), *v)),
            Value::F64(v) => serialize(&(Type::F64.to_tag(), v.0)),
            Value::Instant(v) => serialize(&(Type::Instant.to_tag(), *v)),
            Value::Str(v) => serialize(&(Type::Str.to_tag(), v)),
            Value::Json(v) => serialize(&(Type::Json.to_tag(), v)),
            Value::Blob(v) => serialize(&(Type::Blob.to_tag(), v)),
            Value::Uuid(v) => serialize(&(Type::Uuid.to_tag(), v)),
        }
        .map_err(DataError::EncodingError)
    }

    pub fn serialized_size(&self) -> Result<u64, DataError> {
        match self {
            Value::Bool(v) => serialized_size(&(Type::Bool.to_tag(), *v)),
            Value::U64(v) => serialized_size(&(Type::U64.to_tag(), *v)),
            Value::I64(v) => serialized_size(&(Type::I64.to_tag(), *v)),
            Value::F64(v) => serialized_size(&(Type::F64.to_tag(), v.0)),
            Value::Instant(v) => serialized_size(&(Type::Instant.to_tag(), *v)),
            Value::Str(v) => serialized_size(&(Type::Str.to_tag(), v)),
            Value::Json(v) => serialized_size(&(Type::Json.to_tag(), v)),
            Value::Blob(v) => serialized_size(&(Type::Blob.to_tag(), v)),
            Value::Uuid(v) => serialized_size(&(Type::Uuid.to_tag(), v)),
        }
        .map_err(DataError::EncodingError)
    }
}

impl<'v> From<&'v Value<'v>> for OwnedValue {
    fn from(value: &Value) -> OwnedValue {
        match value {
            Value::Bool(v) => OwnedValue::Bool(*v),
            Value::U64(v) => OwnedValue::U64(*v),
            Value::I64(v) => OwnedValue::I64(*v),
            Value::F64(v) => OwnedValue::F64(**v),
            Value::Instant(v) => OwnedValue::Instant(*v),
            Value::Uuid(v) => OwnedValue::Uuid(Uuid::from_bytes(**v)),
            Value::Str(v) => OwnedValue::Str((*v).to_string()),
            Value::Json(v) => OwnedValue::Json((*v).to_string()),
            Value::Blob(v) => OwnedValue::Blob(v.to_vec()),
        }
    }
}

impl<'v> From<&'v OwnedValue> for Value<'v> {
    fn from(value: &OwnedValue) -> Value {
        match value {
            OwnedValue::Bool(v) => Value::Bool(*v),
            OwnedValue::U64(v) => Value::U64(*v),
            OwnedValue::I64(v) => Value::I64(*v),
            OwnedValue::F64(v) => Value::F64(OrderedFloat::from(*v)),
            OwnedValue::Instant(v) => Value::Instant(*v),
            OwnedValue::Uuid(v) => Value::Uuid(v.as_bytes()),
            OwnedValue::Str(v) => Value::Str(v),
            OwnedValue::Json(v) => Value::Json(v),
            OwnedValue::Blob(v) => Value::Blob(v),
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_value_serialized_size() {
        // | Value enum    | tag: 1 byte   |     value_payload        |
        // |----------------------------------------------------------|
        // |   I64         |     1         |       8                  |
        // |   U64         |     1         |       8                  |
        // |   Bool        |     1         |       1                  |
        // |   Instant     |     1         |       8                  |
        // |   F64         |     1         |       8                  |
        // |   Uuid        |     1         |       16                 |
        // | Str/Blob/Json |     1         |(8: len + sizeof(payload))|
        assert_eq!(Value::I64(-1000).serialized_size().unwrap(), 9);
        assert_eq!(Value::U64(1000u64).serialized_size().unwrap(), 9);
        assert_eq!(Value::Bool(true).serialized_size().unwrap(), 2);
        assert_eq!(
            Value::Instant(1_558_020_865_224).serialized_size().unwrap(),
            9
        );
        assert_eq!(
            Value::F64(OrderedFloat(10000.1)).serialized_size().unwrap(),
            9
        );
        assert_eq!(Value::Str("hello!").serialized_size().unwrap(), 15);
        assert_eq!(Value::Str("¡Hola").serialized_size().unwrap(), 15);
        assert_eq!(Value::Blob(b"hello!").serialized_size().unwrap(), 15);
        assert_eq!(
            uuid(b"\x9f\xe2\xc4\xe9\x3f\x65\x4f\xdb\xb2\x4c\x02\xb1\x52\x59\x71\x6c")
                .unwrap()
                .serialized_size()
                .unwrap(),
            17
        );
    }
}