mangle_engine/lib.rs
1// Copyright 2024 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15//! # Mangle Engine (Legacy)
16//!
17//! This crate provides an AST-based interpreter for Mangle.
18//! It is considered **legacy** and serves as a reference implementation for the
19//! semantics of the language (specifically, the naive bottom-up evaluation).
20//!
21//! For the new, performance-oriented IR-based execution, see `mangle-interpreter` (Edge)
22//! and `mangle-vm` (Server).
23
24use mangle_ast as ast;
25
26use anyhow::Result;
27use mangle_analysis as analysis;
28use mangle_common as factstore;
29
30use analysis::StratifiedProgram;
31
32mod naive;
33pub use naive::Naive;
34
35pub trait Engine<'e> {
36 fn eval<'p>(
37 &'e self,
38 store: &'e impl factstore::FactStore<'e>,
39 program: &'p StratifiedProgram<'p>,
40 ) -> Result<()>;
41}