[−][src]Crate ijson

This crate offers a replacement for serde-json's Value type, which is significantly more memory efficient.

As a ballpark figure, it will typically use half as much memory as serde-json when deserializing a value and the memory footprint of cloning a value is more than 7x smaller.

The primary type exposed by this crate is the IValue type. It is guaranteed to be pointer-sized and has a niche (so Option<IValue> is also guaranteed to be pointer-sized).

Cargo features:

ctor A global string cache is used when interning strings. This cache is normally initialized lazily on first use. Enabling the ctor feature will cause it to be eagerly initialized on startup. There is no performance benefit to this, but it can help avoid false positives from tools like mockalloc which try to detect memory leaks during tests.

Re-exports

pub use array::IArray;

pub use number::INumber;

pub use object::IObject;

pub use string::IString;

Modules

array	Functionality relating to the JSON array type
number	Functionality relating to the JSON number type
object	Functionality relating to the JSON object type
string	Functionality relating to the JSON string type

Macros

ijson

Construct an IValue using familiar JSON syntax.

Structs

BoolMut	A proxy type which imitates a `&mut bool`.
IValue	Stores an arbitrary JSON value.

Enums

Destructured	Enum returned by `IValue::destructure` to allow matching on the type of an owned `IValue`.
DestructuredMut	Enum returned by `IValue::destructure_mut` to allow matching on the type of a mutable reference to an `IValue`.
DestructuredRef	Enum returned by `IValue::destructure_ref` to allow matching on the type of a reference to an `IValue`.
ValueType	Enum which distinguishes the six JSON types.

Traits

ValueIndex

Trait which abstracts over the various number and string types which can be used to index into an IValue.

Functions

from_value	Converts an `IValue` to an arbitrary type using that type's `serde::Deserialize` implementation.
to_value	Converts an arbitrary type to an `IValue` using that type's `serde::Serialize` implementation.