mirror of
https://github.com/danbulant/oxc
synced 2026-05-24 12:21:58 +00:00
8a788b8f4b
This has the benefit of: * expose dynamic import / import meta info from parser * 1 less ast shallow in semantic builder * no ast walk in oxc's module lexer * some more benefits coming soon
52 lines
1.7 KiB
Rust
52 lines
1.7 KiB
Rust
#![allow(clippy::print_stdout)]
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use std::{env, path::Path, sync::Arc};
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use itertools::Itertools;
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use oxc_allocator::Allocator;
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use oxc_parser::Parser;
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use oxc_semantic::SemanticBuilder;
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use oxc_span::SourceType;
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// Instruction:
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// create a `test.js`,
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// run `cargo run -p oxc_semantic --example simple`
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// or `just watch "run -p oxc_semantic --example simple"`
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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 = Arc::new(std::fs::read_to_string(path)?);
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let source_type = SourceType::from_path(path).unwrap();
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// Memory arena where Semantic and Parser allocate objects
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let allocator = Allocator::default();
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// Parse the source text into an AST
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let parser_ret = Parser::new(&allocator, &source_text, source_type).parse();
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if !parser_ret.errors.is_empty() {
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let error_message: String = parser_ret
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.errors
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.into_iter()
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.map(|error| format!("{:?}", error.with_source_code(Arc::clone(&source_text))))
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.join("\n");
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println!("Parsing failed:\n\n{error_message}",);
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return Ok(());
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}
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let program = parser_ret.program;
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let semantic = SemanticBuilder::new()
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// Enable additional syntax checks not performed by the parser
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.with_check_syntax_error(true)
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.build(&program);
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if !semantic.errors.is_empty() {
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let error_message: String = semantic
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.errors
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.into_iter()
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.map(|error| format!("{:?}", error.with_source_code(Arc::clone(&source_text))))
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.join("\n");
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println!("Semantic analysis failed:\n\n{error_message}",);
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}
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Ok(())
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}
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