Static GLOBALS

pub static GLOBALS: ScopedKey<Globals>

Available on crate features __ecma and __utils only.

Storage for span hygiene data.

This variable is used to manage identifiers or to identify nodes. Note that it’s stored as a thread-local storage, but actually it’s shared between threads.

Usages

Configuring

use swc_common::GLOBALS;

GLOBALS.set(&Default::default(), || {
    // Do operations that require span hygiene
});

Span hygiene

Marks are stored in this variable.

You can see the document how swc uses the span hygiene info at https://rustdoc.swc.rs/swc_ecma_transforms_base/resolver/fn.resolver_with_mark.html