1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111

use std::io::{Read, Write};
use std::path::Path;
use serde::{Deserialize, Serialize};
use toml;

use Result;

/// This trait allows to convert TOML objects to deserializable values.
///
/// # Examples
///
/// ```
/// extern crate serde;
/// #[macro_use]
/// extern crate serde_derive;
/// extern crate tomlconv;
///
/// use tomlconv::FromToml;
///
/// // Defines a deserializable struct.
/// #[derive(Deserialize)]
/// struct Foo {
///     bar: String,
///     baz: usize
/// }
/// impl FromToml for Foo {}
///
/// # fn main() {
/// // Converts from the TOML string to a `Foo` value.
/// let toml = r#"
/// bar = "aaa"
/// baz = 123
/// "#;
/// let foo = Foo::from_toml_str(toml).unwrap();
/// assert_eq!(foo.bar, "aaa");
/// assert_eq!(foo.baz, 123);
/// # }
/// ```
pub trait FromToml: for<'a> Deserialize<'a> {
    /// Converts from the TOML file to an instance of this implementation.
    fn from_toml_file<P: AsRef<Path>>(path: P) -> Result<Self> {
        track!(::from_toml_file(path))
    }

    /// Reads a TOML string from the reader and converts it to an instance of this implementation.
    fn from_toml_reader<R: Read>(reader: R) -> Result<Self> {
        track!(::from_toml_reader(reader))
    }

    /// Converts from the TOML string to an instance of this implementation.
    fn from_toml_str(toml: &str) -> Result<Self> {
        track!(::from_toml_str(toml))
    }

    /// Converts from the TOML value to an instance of this implementation.
    fn from_toml(toml: toml::Value) -> Result<Self> {
        track!(::from_toml(toml))
    }
}

/// This trait allows to convert serializable values to TOML objects.
///
/// # Examples
///
/// ```
/// extern crate serde;
/// #[macro_use]
/// extern crate serde_derive;
/// extern crate tomlconv;
///
/// use tomlconv::ToToml;
///
/// // Defines a serializable struct.
/// #[derive(Serialize)]
/// struct Foo {
///     bar: &'static str,
///     baz: usize
/// }
/// impl ToToml for Foo {}
///
/// # fn main() {
/// // Converts the `Foo` value to a TOML string.
/// let foo = Foo { bar: "aaa", baz: 123 };
/// let toml = foo.to_toml_string().unwrap();
/// assert_eq!(toml, "\
/// bar = \"aaa\"
/// baz = 123
/// ");
/// # }
/// ```
pub trait ToToml: Serialize {
    /// Converts this to a TOML string and writes it to the speficied file.
    fn to_toml_file<P: AsRef<Path>>(&self, path: P) -> Result<()> {
        track!(::to_toml_file(self, path))
    }

    /// Converts this to a TOML string and writes it to the writer.
    fn to_toml_writer<W: Write>(&self, writer: W) -> Result<()> {
        track!(::to_toml_writer(self, writer))
    }

    /// Converts this to a TOML string.
    fn to_toml_string(&self) -> Result<String> {
        track!(::to_toml_string(self))
    }

    /// Converts this to a TOML value.
    fn to_toml(&self) -> Result<toml::Value> {
        track!(::to_toml(self))
    }
}