Enum Term 

pub enum Term<S> {
    Id,
    Recurse,
    Num(S),
    Str(Option<S>, Vec<StrPart<S, Self>>),
    Arr(Option<Box<Self>>),
    Obj(Vec<(Self, Option<Self>)>),
    Neg(Box<Self>),
    BinOp(Box<Self>, BinaryOp<S>, Box<Self>),
    Label(S, Box<Self>),
    Break(S),
    Fold(S, Box<Self>, Pattern<S>, Vec<Self>),
    TryCatch(Box<Self>, Option<Box<Self>>),
    IfThenElse(Vec<(Self, Self)>, Option<Box<Self>>),
    Def(Vec<Def<S, Self>>, Box<Self>),
    Call(S, Vec<Self>),
    Var(S),
    Path(Box<Self>, Path<Self>),
}

Function from value to stream of values, such as .[] | add / length.

Variants

Id

Identity, i.e. .

Recurse

Recursion (..)

Num(S)

Integer or floating-point number

Str(Option<S>, Vec<StrPart<S, Self>>)

String

This consists of an optional format filter starting with @ (such as @text), followed by quoted string parts (such as "Hello, \(.name)! \u263A").

Arr(Option<Box<Self>>)

Array, empty if None

Obj(Vec<(Self, Option<Self>)>)

Object, specifying its key-value pairs

Neg(Box<Self>)

Negation

BinOp(Box<Self>, BinaryOp<S>, Box<Self>)

Sequence of binary operations, e.g. 1 + 2 - 3 * 4

Label(S, Box<Self>)

Control flow variable declaration, e.g. label $x | ...

Break(S)

Break out from control flow to location variable, e.g. break $x

Fold(S, Box<Self>, Pattern<S>, Vec<Self>)

reduce and foreach, e.g. reduce .[] as $x (0; .+$x)

TryCatch(Box<Self>, Option<Box<Self>>)

try and optional catch

IfThenElse(Vec<(Self, Self)>, Option<Box<Self>>)

If-then-else

Def(Vec<Def<S, Self>>, Box<Self>)

Local definition

Call(S, Vec<Self>)

Call to another filter, e.g. map(.+1)

Var(S)

Variable, such as $x (including leading ‘$’)

Path(Box<Self>, Path<Self>)

Path such as .a, .[][]."b", f[0]

Trait Implementations

impl<S: Debug> Debug for Term<S>

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

Formats the value using the given formatter.

impl<S> Default for Term<S>

fn default() -> Term<S>

Returns the “default value” for a type.