rs

func DepKey ¶

func DepKey(crate string) string

DepKey returns the crate name for a Rust import path.

"serde"          -> "serde"
"serde::Deserialize" already gets parsed down to "serde" upstream
"crate::foo"     -> ""    (own crate)
"super::foo"     -> ""    (relative)
"self::foo"      -> ""    (relative)
"std::io"        -> ""    (stdlib)
"core::mem"      -> ""    (stdlib)
"alloc::vec"     -> ""    (stdlib)

Cargo crate names use dashes; Rust import paths use underscores (cargo's --bin auto-renames). depusage stores the underscored form it sees in source. Consumers that want to compare against Cargo.toml dep names can s/_/-/g.

func IsRelative ¶

func IsRelative(crate string) bool

IsRelative reports whether the leading-path-segment refers to project-local code rather than an external crate.