mirror of
https://github.com/danbulant/oxc
synced 2026-05-19 20:28:58 +00:00
5c38a0fd69
This PR introduces two type alias to avoid the confusing const generic `pub struct Codegen<'a, const MINIFY: bool>` * CodeGenerator - Code generator without whitespace removal. * WhitespaceRemover - Code generator with whitespace removal. Usage is changed to a builder pattern: ```rust CodeGenerator::new() .enable_comment(...) .enable_sourcemap(...) .build(&program); ```
47 lines
1.5 KiB
Rust
47 lines
1.5 KiB
Rust
#![allow(clippy::print_stdout)]
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use std::{env, path::Path};
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use base64::{prelude::BASE64_STANDARD, Engine};
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use oxc_allocator::Allocator;
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use oxc_codegen::{CodeGenerator, CodegenReturn};
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use oxc_parser::Parser;
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use oxc_span::SourceType;
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// Instruction:
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// 1. create a `test.js`
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// 2. run `cargo run -p oxc_codegen --example sourcemap`
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fn main() -> std::io::Result<()> {
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let name = env::args().nth(1).unwrap_or_else(|| "test.js".to_string());
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let path = Path::new(&name);
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let source_text = std::fs::read_to_string(path)?;
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let source_type = SourceType::from_path(path).unwrap();
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let allocator = Allocator::default();
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let ret = Parser::new(&allocator, &source_text, source_type).parse();
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if !ret.errors.is_empty() {
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for error in ret.errors {
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let error = error.with_source_code(source_text.clone());
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println!("{error:?}");
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}
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return Ok(());
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}
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let CodegenReturn { source_text, source_map } = CodeGenerator::new()
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.enable_source_map(path.to_string_lossy().as_ref(), &source_text)
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.build(&ret.program);
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if let Some(source_map) = source_map {
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let result = source_map.to_json_string().unwrap();
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let hash = BASE64_STANDARD.encode(format!(
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"{}\0{}{}\0{}",
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source_text.len(),
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source_text,
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result.len(),
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result
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));
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println!("https://evanw.github.io/source-map-visualization/#{hash}");
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}
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Ok(())
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}
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