Cargo Features

speedy_sourcemap has no features set by default.

[dependencies]
speedy_sourcemap = { version = "0.1.2", features = ["node-api"] }
node-api = napi, napi-derive

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

napi node-api?
napi-derive node-api?