mirror of
https://github.com/ProvableHQ/leo.git
synced 2024-11-30 23:33:27 +03:00
99 lines
2.8 KiB
Rust
99 lines
2.8 KiB
Rust
// Copyright (C) 2019-2020 Aleo Systems Inc.
|
|
// This file is part of the Leo library.
|
|
|
|
// The Leo library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// The Leo library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
//! The abstract syntax tree (ast) for a Leo program.
|
|
//!
|
|
//! This module contains the [`Ast`] type, a wrapper around the [`Program`] type.
|
|
//! The [`Ast`] type is intended to be parsed and modified by different passes
|
|
//! of the Leo compiler. The Leo compiler can generate a set of R1CS constraints from any [`Ast`].
|
|
|
|
pub mod annotation;
|
|
pub use self::annotation::*;
|
|
|
|
pub mod circuits;
|
|
pub use self::circuits::*;
|
|
|
|
pub mod common;
|
|
pub use self::common::*;
|
|
|
|
pub mod console;
|
|
pub use self::console::*;
|
|
|
|
pub mod errors;
|
|
pub use self::errors::*;
|
|
|
|
pub mod expression;
|
|
pub use self::expression::*;
|
|
|
|
pub mod functions;
|
|
pub use self::functions::*;
|
|
|
|
pub mod groups;
|
|
pub use self::groups::*;
|
|
|
|
pub mod imports;
|
|
pub use self::imports::*;
|
|
|
|
pub mod input;
|
|
pub use self::input::*;
|
|
|
|
pub mod program;
|
|
pub use self::program::*;
|
|
|
|
pub mod statements;
|
|
pub use self::statements::*;
|
|
|
|
pub mod types;
|
|
pub use self::types::*;
|
|
|
|
use leo_grammar::Grammar;
|
|
|
|
/// The abstract syntax tree (ast) for a Leo program.
|
|
///
|
|
/// The [`Ast`] type represents a Leo program as a series of recursive data types.
|
|
/// These data types form a tree that begins from a [`Program`] type root.
|
|
///
|
|
/// A new [`Ast`] can be created from a [`Grammar`] generated by the pest parser in the `grammar` module.
|
|
#[derive(Debug, Eq, PartialEq)]
|
|
pub struct Ast {
|
|
ast: Program,
|
|
}
|
|
|
|
impl Ast {
|
|
/// Creates a new ast from a given program name and grammar tree.
|
|
pub fn new<'ast>(program_name: &str, ast: &Grammar<'ast>) -> Self {
|
|
Self {
|
|
ast: Program::from(program_name, ast.as_repr()),
|
|
}
|
|
}
|
|
|
|
/// Returns a reference to the inner program ast representation.
|
|
pub fn into_repr(self) -> Program {
|
|
self.ast
|
|
}
|
|
|
|
/// Serializes the ast into a JSON string.
|
|
pub fn to_json_string(&self) -> Result<String, serde_json::Error> {
|
|
Ok(serde_json::to_string_pretty(&self.ast)?)
|
|
}
|
|
|
|
/// Deserializes the JSON string into a ast.
|
|
pub fn from_json_string(json: &str) -> Result<Self, serde_json::Error> {
|
|
let ast: Program = serde_json::from_str(json)?;
|
|
Ok(Self { ast })
|
|
}
|
|
}
|