Compiler API - Make disableIncrementalParsing not a global variable

[dsherret]

Search Terms

disableIncrementalParsing

Suggestion

Right now disabling incremental parsing is done via the public api like so:

ts.disableIncrementalParsing = true;

TypeScript/lib/typescript.d.ts

Line 5882 in 196c0aa

let disableIncrementalParsing: boolean;

This means that if someone sets this to true it will mess with anyone else that depends on it.

It would be nice if this was made non-global.

Workaround

function doWithIncrementalParsing(action: () => void) {
    const oldValue = ts.disableIncrementalParsing;
    ts.disableIncrementalParsing = false;
    try {
        action();
    } finally {
        ts.disableIncrementalParsing = oldValue;
    }
}

[sandersn]

This is fixed by #35530.