Unlike IRIS Studio have compile depended classes feature. How to achieve this in mac on Vscode.

Bring up the VSCode command palate.
Choose: ObjectScript: Compile current file with specified flags.

Use flags: ckb

Where:
b=Compile Dependent Classes
c=Compile
k=keep generated source code
u=Skip related upto date classes

You can also set this at a workspace or user level by going into Settings -> Extensions -> InterSystems ObjectScript and updating the "ObjectScript Compile Flags" setting: