Enum TapeElement

pub enum TapeElement {
    StartObject(u32),
    EndObject(u32),
    StartList(u32),
    EndList(u32),
    String(u32),
    Number(u32),
    I64(i32),
    I32(i32),
    F64(u32),
    F32(u32),
    True,
    False,
    Null,
}

We decode JSON to a flattened tape representation, allowing for efficient traversal of the JSON data

This approach is inspired by simdjson

Uses u32 for offsets to ensure TapeElement is 64-bits. A future iteration may increase this to a custom u56 type.

Variants

StartObject(u32)

The start of an object, i.e. {

Contains the offset of the corresponding Self::EndObject

EndObject(u32)

The end of an object, i.e. }

Contains the offset of the corresponding Self::StartObject

StartList(u32)

The start of a list , i.e. [

Contains the offset of the corresponding Self::EndList

EndList(u32)

The end of a list , i.e. ]

Contains the offset of the corresponding Self::StartList

String(u32)

A string value

Contains the offset into the Tape string data

Number(u32)

A numeric value

Contains the offset into the Tape string data

I64(i32)

The high bits of a i64

Followed by Self::I32 containing the low bits

I32(i32)

A 32-bit signed integer

May be preceded by Self::I64 containing high bits

F64(u32)

The high bits of a 64-bit float

Followed by Self::F32 containing the low bits

F32(u32)

A 32-bit float or the low-bits of a 64-bit float if preceded by Self::F64

True

A true literal

False

A false literal

Null

A null literal

Trait Implementations

impl Clone for TapeElement

fn clone(&self) -> TapeElement

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TapeElement

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for TapeElement

fn eq(&self, other: &TapeElement) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for TapeElement

impl Eq for TapeElement

impl StructuralPartialEq for TapeElement