| use std::sync::Arc; |
|
|
| use anyhow::Context as _; |
| use napi::bindgen_prelude::*; |
| use swc_core::{ |
| base::{config::ParseOptions, try_with_handler}, |
| common::{ |
| FileName, FilePathMapping, GLOBALS, SourceMap, comments::Comments, errors::ColorConfig, |
| }, |
| }; |
|
|
| use crate::util::MapErr; |
|
|
| pub struct ParseTask { |
| pub filename: FileName, |
| pub src: String, |
| pub options: Buffer, |
| } |
|
|
| #[napi] |
| impl Task for ParseTask { |
| type Output = String; |
| type JsValue = String; |
|
|
| fn compute(&mut self) -> napi::Result<Self::Output> { |
| GLOBALS.set(&Default::default(), || { |
| let c = |
| swc_core::base::Compiler::new(Arc::new(SourceMap::new(FilePathMapping::empty()))); |
|
|
| let options: ParseOptions = serde_json::from_slice(self.options.as_ref())?; |
| let comments = c.comments().clone(); |
| let comments: Option<&dyn Comments> = if options.comments { |
| Some(&comments) |
| } else { |
| None |
| }; |
| let fm = |
| c.cm.new_source_file(self.filename.clone().into(), self.src.clone()); |
| let program = try_with_handler( |
| c.cm.clone(), |
| swc_core::base::HandlerOpts { |
| color: ColorConfig::Never, |
| skip_filename: false, |
| }, |
| |handler| { |
| c.parse_js( |
| fm, |
| handler, |
| options.target, |
| options.syntax, |
| options.is_module, |
| comments, |
| ) |
| }, |
| ) |
| .map_err(|e| e.to_pretty_error()) |
| .convert_err()?; |
|
|
| let ast_json = serde_json::to_string(&program) |
| .context("failed to serialize Program") |
| .convert_err()?; |
|
|
| Ok(ast_json) |
| }) |
| } |
|
|
| fn resolve(&mut self, _env: Env, result: Self::Output) -> napi::Result<Self::JsValue> { |
| Ok(result) |
| } |
| } |
|
|
| #[napi] |
| pub fn parse( |
| src: String, |
| options: Buffer, |
| filename: Option<String>, |
| signal: Option<AbortSignal>, |
| ) -> AsyncTask<ParseTask> { |
| let filename = if let Some(value) = filename { |
| FileName::Real(value.into()) |
| } else { |
| FileName::Anon |
| }; |
| AsyncTask::with_optional_signal( |
| ParseTask { |
| filename, |
| src, |
| options, |
| }, |
| signal, |
| ) |
| } |
|
|
