59 lines
2.0 KiB
Rust
59 lines
2.0 KiB
Rust
use crate::err::ProcessingResult;
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use crate::proc::MatchAction::*;
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use crate::proc::MatchMode::*;
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use crate::proc::Processor;
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#[cfg(feature = "js-esbuild")]
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use crate::proc::JsMinSection;
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use crate::cfg::Cfg;
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#[cfg(feature = "js-esbuild")]
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use crate::proc::checkpoint::Checkpoint;
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#[cfg(feature = "js-esbuild")]
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use esbuild_rs::{TransformOptionsBuilder, TransformOptions};
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#[cfg(feature = "js-esbuild")]
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use std::sync::Arc;
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#[cfg(feature = "js-esbuild")]
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use lazy_static::lazy_static;
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#[cfg(feature = "js-esbuild")]
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lazy_static! {
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static ref TRANSFORM_OPTIONS: Arc<TransformOptions> = {
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let mut builder = TransformOptionsBuilder::new();
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builder.minify_identifiers = true;
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builder.minify_syntax = true;
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builder.minify_whitespace = true;
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builder.build()
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};
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}
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pub fn process_script(proc: &mut Processor, cfg: &Cfg) -> ProcessingResult<()> {
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#[cfg(feature = "js-esbuild")]
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let start = Checkpoint::new(proc);
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loop {
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proc.require_not_at_end()?;
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// Use fast memchr. Unfortunately all characters in "</script>" are common in JS code.
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proc.m(WhileNotChar(b'<'), Keep);
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// `process_tag` will require closing tag.
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if proc.m(IsSeq(b"</script"), MatchOnly).nonempty() {
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#[cfg(feature = "js-esbuild")]
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if cfg.minify_js {
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let (wg, results) = proc.new_script_section();
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let src = start.written_range(proc);
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// TODO Optimise: Avoid copying to new Vec.
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let src = Arc::new(proc[src].to_vec());
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esbuild_rs::transform(src, TRANSFORM_OPTIONS.clone(), move |result| {
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results.lock().unwrap().push(JsMinSection {
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src,
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result,
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});
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drop(wg);
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});
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return Ok(());
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};
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break;
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};
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// Consume '<'.
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proc.accept_expect();
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};
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Ok(())
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}
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