Trait ToJson

pub trait ToJson: Serialize {
    // Provided methods
    fn to_json_file<P: AsRef<Path>>(&self, path: P) -> Result<()> { ... }
    fn to_json_writer<W: Write>(&self, writer: W) -> Result<()> { ... }
    fn to_json_writer_pretty<W: Write>(&self, writer: W) -> Result<()> { ... }
    fn to_json_string(&self) -> Result<String> { ... }
    fn to_json_string_pretty(&self) -> Result<String> { ... }
}

This trait allows to convert serializable values to JSON objects.

Examples

extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate serdeconv;

use serdeconv::ToJson;

// Defines a serializable struct.
#[derive(Serialize)]
struct Foo {
    bar: &'static str,
    baz: usize
}
impl ToJson for Foo {}

// Converts the `Foo` value to a JSON string.
let foo = Foo { bar: "aaa", baz: 123 };
let json = foo.to_json_string().unwrap();
assert_eq!(json, r#"{"bar":"aaa","baz":123}"#);

Provided Methods

fn to_json_file<P: AsRef<Path>>(&self, path: P) -> Result<()>

Converts this to a JSON string and writes it to the speficied file.

fn to_json_writer<W: Write>(&self, writer: W) -> Result<()>

Converts this to a JSON string and writes it to the writer.

fn to_json_writer_pretty<W: Write>(&self, writer: W) -> Result<()>

Converts this to a pretty printed JSON string and writes it to the writer.

fn to_json_string(&self) -> Result<String>

Converts this to a JSON string.

fn to_json_string_pretty(&self) -> Result<String>

Converts this to a pretty printed JSON string.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors