/rust/registry/src/index.crates.io-6f17d22bba15001f/serde-1.0.216/src/ser/fmt.rs

Source (jump to first uncovered line)
use crate::lib::*;
use crate::ser::{Error, Impossible, Serialize, Serializer};

impl Error for fmt::Error {
    fn custom<T: Display>(_msg: T) -> Self {
        fmt::Error
    }
}

macro_rules! fmt_primitives {
    ($($f:ident: $t:ty,)*) => {
        $(
            fn $f(self, v: $t) -> fmt::Result {
                Display::fmt(&v, self)
            }
        )*
    };
}

/// ```edition2021
/// use serde::ser::Serialize;
/// use serde_derive::Serialize;
/// use std::fmt::{self, Display};
///
/// #[derive(Serialize)]
/// #[serde(rename_all = "kebab-case")]
/// pub enum MessageType {
///     StartRequest,
///     EndRequest,
/// }
///
/// impl Display for MessageType {
///     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
///         self.serialize(f)
///     }
/// }
/// ```
impl<'a> Serializer for &mut fmt::Formatter<'a> {
    type Ok = ();
    type Error = fmt::Error;
    type SerializeSeq = Impossible<(), fmt::Error>;
    type SerializeTuple = Impossible<(), fmt::Error>;
    type SerializeTupleStruct = Impossible<(), fmt::Error>;
    type SerializeTupleVariant = Impossible<(), fmt::Error>;
    type SerializeMap = Impossible<(), fmt::Error>;
    type SerializeStruct = Impossible<(), fmt::Error>;
    type SerializeStructVariant = Impossible<(), fmt::Error>;

    fmt_primitives! {
        serialize_bool: bool,
        serialize_i8: i8,
        serialize_i16: i16,
        serialize_i32: i32,
        serialize_i64: i64,
        serialize_i128: i128,
        serialize_u8: u8,
        serialize_u16: u16,
        serialize_u32: u32,
        serialize_u64: u64,
        serialize_u128: u128,
        serialize_f32: f32,
        serialize_f64: f64,
        serialize_char: char,
        serialize_str: &str,
        serialize_unit_struct: &'static str,
    }

    fn serialize_unit_variant(
        self,
        _name: &'static str,
        _variant_index: u32,
        variant: &'static str,
    ) -> fmt::Result {
        Display::fmt(variant, self)
    }

    fn serialize_newtype_struct<T>(self, _name: &'static str, value: &T) -> fmt::Result
    where
        T: ?Sized + Serialize,
    {
        Serialize::serialize(value, self)
    }

    fn serialize_bytes(self, _v: &[u8]) -> fmt::Result {
        Err(fmt::Error)
    }

    fn serialize_none(self) -> fmt::Result {
        Err(fmt::Error)
    }

    fn serialize_some<T>(self, _value: &T) -> fmt::Result
    where
        T: ?Sized + Serialize,
    {
        Err(fmt::Error)
    }

    fn serialize_unit(self) -> fmt::Result {
        Err(fmt::Error)
    }

    fn serialize_newtype_variant<T>(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
        _value: &T,
    ) -> fmt::Result
    where
        T: ?Sized + Serialize,
    {
        Err(fmt::Error)
    }

    fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, fmt::Error> {
        Err(fmt::Error)
    }

    fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, fmt::Error> {
        Err(fmt::Error)
    }

    fn serialize_tuple_struct(
        self,
        _name: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeTupleStruct, fmt::Error> {
        Err(fmt::Error)
    }

    fn serialize_tuple_variant(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeTupleVariant, fmt::Error> {
        Err(fmt::Error)
    }

    fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, fmt::Error> {
        Err(fmt::Error)
    }

    fn serialize_struct(
        self,
        _name: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeStruct, fmt::Error> {
        Err(fmt::Error)
    }

    fn serialize_struct_variant(
        self,
        _name: &'static str,
        _variant_index: u32,
        _variant: &'static str,
        _len: usize,
    ) -> Result<Self::SerializeStructVariant, fmt::Error> {
        Err(fmt::Error)
    }

    fn collect_str<T>(self, value: &T) -> fmt::Result
    where
        T: ?Sized + Display,
    {
        Display::fmt(value, self)
    }
}

Line	Count	Source (jump to first uncovered line)
1		use crate::lib::*;
2		use crate::ser::{Error, Impossible, Serialize, Serializer};
3
4		impl Error for fmt::Error {
5	0	fn custom<T: Display>(_msg: T) -> Self {
6	0	fmt::Error
7	0	}
8		}
9
10		macro_rules! fmt_primitives {
11		($($f:ident: $t:ty,)*) => {
12		$(
13	0	fn $f(self, v: $t) -> fmt::Result {
14	0	Display::fmt(&v, self)
15	0	} Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_bool Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_i8 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_i16 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_i32 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_i64 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_i128 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_u8 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_u16 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_u32 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_u64 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_u128 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_f32 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_f64 Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_char Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_str Unexecuted instantiation: <&mut core::fmt::Formatter as serde::ser::Serializer>::serialize_unit_struct
16		)*
17		};
18		}
19
20		/// ```edition2021
21		/// use serde::ser::Serialize;
22		/// use serde_derive::Serialize;
23		/// use std::fmt::{self, Display};
24		///
25		/// #[derive(Serialize)]
26		/// #[serde(rename_all = "kebab-case")]
27		/// pub enum MessageType {
28		/// StartRequest,
29		/// EndRequest,
30		/// }
31		///
32		/// impl Display for MessageType {
33		/// fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
34		/// self.serialize(f)
35		/// }
36		/// }
37		/// ```
38		impl<'a> Serializer for &mut fmt::Formatter<'a> {
39		type Ok = ();
40		type Error = fmt::Error;
41		type SerializeSeq = Impossible<(), fmt::Error>;
42		type SerializeTuple = Impossible<(), fmt::Error>;
43		type SerializeTupleStruct = Impossible<(), fmt::Error>;
44		type SerializeTupleVariant = Impossible<(), fmt::Error>;
45		type SerializeMap = Impossible<(), fmt::Error>;
46		type SerializeStruct = Impossible<(), fmt::Error>;
47		type SerializeStructVariant = Impossible<(), fmt::Error>;
48
49		fmt_primitives! {
50		serialize_bool: bool,
51		serialize_i8: i8,
52		serialize_i16: i16,
53		serialize_i32: i32,
54		serialize_i64: i64,
55		serialize_i128: i128,
56		serialize_u8: u8,
57		serialize_u16: u16,
58		serialize_u32: u32,
59		serialize_u64: u64,
60		serialize_u128: u128,
61		serialize_f32: f32,
62		serialize_f64: f64,
63		serialize_char: char,
64		serialize_str: &str,
65		serialize_unit_struct: &'static str,
66		}
67
68	0	fn serialize_unit_variant(
69	0	self,
70	0	_name: &'static str,
71	0	_variant_index: u32,
72	0	variant: &'static str,
73	0	) -> fmt::Result {
74	0	Display::fmt(variant, self)
75	0	}
76
77	0	fn serialize_newtype_struct<T>(self, _name: &'static str, value: &T) -> fmt::Result
78	0	where
79	0	T: ?Sized + Serialize,
80	0	{
81	0	Serialize::serialize(value, self)
82	0	}
83
84	0	fn serialize_bytes(self, _v: &[u8]) -> fmt::Result {
85	0	Err(fmt::Error)
86	0	}
87
88	0	fn serialize_none(self) -> fmt::Result {
89	0	Err(fmt::Error)
90	0	}
91
92	0	fn serialize_some<T>(self, _value: &T) -> fmt::Result
93	0	where
94	0	T: ?Sized + Serialize,
95	0	{
96	0	Err(fmt::Error)
97	0	}
98
99	0	fn serialize_unit(self) -> fmt::Result {
100	0	Err(fmt::Error)
101	0	}
102
103	0	fn serialize_newtype_variant<T>(
104	0	self,
105	0	_name: &'static str,
106	0	_variant_index: u32,
107	0	_variant: &'static str,
108	0	_value: &T,
109	0	) -> fmt::Result
110	0	where
111	0	T: ?Sized + Serialize,
112	0	{
113	0	Err(fmt::Error)
114	0	}
115
116	0	fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, fmt::Error> {
117	0	Err(fmt::Error)
118	0	}
119
120	0	fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, fmt::Error> {
121	0	Err(fmt::Error)
122	0	}
123
124	0	fn serialize_tuple_struct(
125	0	self,
126	0	_name: &'static str,
127	0	_len: usize,
128	0	) -> Result<Self::SerializeTupleStruct, fmt::Error> {
129	0	Err(fmt::Error)
130	0	}
131
132	0	fn serialize_tuple_variant(
133	0	self,
134	0	_name: &'static str,
135	0	_variant_index: u32,
136	0	_variant: &'static str,
137	0	_len: usize,
138	0	) -> Result<Self::SerializeTupleVariant, fmt::Error> {
139	0	Err(fmt::Error)
140	0	}
141
142	0	fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, fmt::Error> {
143	0	Err(fmt::Error)
144	0	}
145
146	0	fn serialize_struct(
147	0	self,
148	0	_name: &'static str,
149	0	_len: usize,
150	0	) -> Result<Self::SerializeStruct, fmt::Error> {
151	0	Err(fmt::Error)
152	0	}
153
154	0	fn serialize_struct_variant(
155	0	self,
156	0	_name: &'static str,
157	0	_variant_index: u32,
158	0	_variant: &'static str,
159	0	_len: usize,
160	0	) -> Result<Self::SerializeStructVariant, fmt::Error> {
161	0	Err(fmt::Error)
162	0	}
163
164	0	fn collect_str<T>(self, value: &T) -> fmt::Result
165	0	where
166	0	T: ?Sized + Display,
167	0	{
168	0	Display::fmt(value, self)
169	0	}
170		}

Coverage Report

Created: 2024-12-17 06:15