datalogic-rs 5.9.0

High-performance JSONLogic (json-logic) rules engine and sandboxed expression evaluator in Rust — one core, official bindings for Node.js, WASM, Python, Go, Java, .NET, and PHP. Compile once, evaluate in nanoseconds.
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//! Array operators: filter / map / reduce / merge / quantifiers / sort /
//! slice / length.
//!
//! # File map
//!
//! - [`filter`] — `filter` (predicate-based array selection).
//! - [`map`] — `map` (per-element transformation).
//! - [`merge`] — `merge` (variadic array concatenation, flattening one level).
//! - [`quantifiers`] — `all`, `some`, `none` (predicate scan with short-circuit).
//! - [`reduce`] — `reduce` (fold over an array with `accumulator` / `current` slots).
//! - [`length`] — `length` of strings/arrays (gated on `feature = "ext-string"`).
//! - [`slice`] — Python-style `slice` (gated on `feature = "ext-array"`).
//! - [`sort`] — `sort` (key-based ordering, gated on `feature = "ext-array"`).
//! - [`group_by`] — `group_by` (collapse on a computed key into `{key, items}`
//!   rows, gated on `feature = "ext-array"`).
//! - [`distinct`] — `distinct` (dedup by value or computed key, gated on
//!   `feature = "ext-array"`).
//! - [`input`] — iterator input: `IterSrc`, `ResolvedInput`, `Items`,
//!   `resolve_iter_input` (used by every iterator op, and where the
//!   per-item charge is taken), and the per-item body loops.
//! - [`helpers`] — `FastPredicate` (filter / quantifier fast paths) and
//!   the loop-invariance test.
//! - [`fused`] — the fused `map` / `reduce` pieces: `FieldCursor`, the
//!   exact arithmetic combine, `FusedMapBody`.
//! - [`fast_paths`] — the list of every fast path and the gate they share.

mod fast_paths;
mod fused;
mod helpers;
mod input;

mod filter;
mod map;
mod merge;
mod nesting;
mod quantifiers;
mod reduce;

#[cfg(feature = "ext-string")]
mod length;

#[cfg(feature = "ext-array")]
mod distinct;
#[cfg(feature = "ext-array")]
mod group_by;
#[cfg(feature = "ext-array")]
mod slice;
#[cfg(feature = "ext-array")]
mod sort;

// Operator entry points (consumed by the dispatcher).
pub(crate) use filter::evaluate_filter;
pub(crate) use map::evaluate_map;
pub(crate) use merge::evaluate_merge;
pub(crate) use quantifiers::quantifier;
pub(crate) use reduce::evaluate_reduce;

#[cfg(feature = "ext-string")]
pub(crate) use length::length;

#[cfg(feature = "ext-array")]
pub(crate) use distinct::evaluate_distinct;
#[cfg(feature = "ext-array")]
pub(crate) use group_by::evaluate_group_by;
#[cfg(feature = "ext-array")]
pub(crate) use slice::evaluate_slice;
#[cfg(feature = "ext-array")]
pub(crate) use sort::evaluate_sort;

// Iterator-input infrastructure consumed by `arithmetic` (and other crate
// callers) to compose with array results.
pub(crate) use helpers::FastPredicate;
pub(crate) use input::{Items, IterArgKind, ResolvedInput, resolve_iter_input};