Cargo Features
[dependencies]
proc-macro-error2 = { version = "0.0.2", default-features = false, features = ["syn"] }
- default = syn
-
The
syn
feature is set by default wheneverproc-macro-error2
is added without
somewhere in the dependency tree.default-features = false
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.
- syn default