mirror of
https://github.com/ProvableHQ/leo.git
synced 2024-11-27 12:17:35 +03:00
69 lines
2.7 KiB
Rust
69 lines
2.7 KiB
Rust
// Copyright (C) 2019-2021 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/>.
|
|
|
|
use leo_ast::Ast;
|
|
use leo_parser::errors::SyntaxError;
|
|
use std::{env, fs, path::Path};
|
|
|
|
fn to_leo_tree(filepath: &Path) -> Result<String, SyntaxError> {
|
|
// Loads the Leo code as a string from the given file path.
|
|
let program_filepath = filepath.to_path_buf();
|
|
let program_string = fs::read_to_string(&program_filepath).expect("failed to open input file");
|
|
|
|
// Parses the Leo file and constructs an ast.
|
|
let ast = leo_parser::parse_ast(filepath.to_str().unwrap(), &program_string)?;
|
|
|
|
let serialized_leo_ast = Ast::to_json_string(&ast).expect("serialization failed");
|
|
|
|
Ok(serialized_leo_ast)
|
|
}
|
|
|
|
fn main() -> Result<(), SyntaxError> {
|
|
// Parse the command-line arguments as strings.
|
|
let cli_arguments = env::args().collect::<Vec<String>>();
|
|
|
|
// Check that the correct number of command-line arguments were passed in.
|
|
if cli_arguments.len() < 2 || cli_arguments.len() > 3 {
|
|
eprintln!("Warning - an invalid number of command-line arguments were provided.");
|
|
println!(
|
|
"\nCommand-line usage:\n\n\tleo_ast {{PATH/TO/INPUT_FILENAME}}.leo {{PATH/TO/OUTPUT_DIRECTORY (optional)}}\n"
|
|
);
|
|
return Ok(()); // Exit innocently
|
|
}
|
|
|
|
// Construct the input filepath.
|
|
let input_filepath = Path::new(&cli_arguments[1]);
|
|
|
|
// Construct the serialized syntax tree.
|
|
let serialized_leo_tree = to_leo_tree(&input_filepath)?;
|
|
println!("{}", serialized_leo_tree);
|
|
|
|
// Determine the output directory.
|
|
let output_directory = match cli_arguments.len() == 3 {
|
|
true => format!(
|
|
"{}/{}.json",
|
|
cli_arguments[2],
|
|
input_filepath.file_stem().unwrap().to_str().unwrap()
|
|
),
|
|
false => format!("./{}.json", input_filepath.file_stem().unwrap().to_str().unwrap()),
|
|
};
|
|
|
|
// Write the serialized syntax tree to the output directory.
|
|
fs::write(Path::new(&output_directory), serialized_leo_tree).expect("failed to write output");
|
|
|
|
Ok(())
|
|
}
|