82ccb6582a
This allows a build system to indicate a location in its own dependency
specification files (eg Cargo's `Cargo.toml`) which can be reported
along side any unused crate dependency.
This supports several types of location:
- 'json' - provide some json-structured data, which is included in the json diagnostics
in a `tool_metadata` field
- 'raw' - emit the provided string into the output. This also appears as a json string in
`tool_metadata`.
If no `--extern-location` is explicitly provided then a default json entry of the form
`"tool_metadata":{"name":<cratename>,"path":<cratepath>}` is emitted.
11 lines
240 B
Rust
11 lines
240 B
Rust
// Default extern location from name and path if one isn't specified
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// check-pass
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// aux-crate:bar=bar.rs
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// compile-flags:--error-format json
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#![warn(unused_crate_dependencies)]
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//~^ WARNING external crate `bar` unused in
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fn main() {}
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