Function cargo::core::compiler::build_context::target_info::parse_crate_type

fn parse_crate_type(
    crate_type: &CrateType,
    cmd: &ProcessBuilder,
    output: &str,
    error: &str,
    lines: &mut Lines<'_>
) -> CargoResult<Option<(String, String)>>

Takes rustc output (using specialized command line args), and calculates the file prefix and suffix for the given crate type, or returns None if the type is not supported. (e.g., for a Rust library like libcargo.rlib, we have prefix “lib” and suffix “rlib”).

The caller needs to ensure that the lines object is at the correct line for the given crate type: this is not checked.

This function can not handle more than one file per type (with wasm32-unknown-emscripten, there are two files for bin (.wasm and .js)).