rust-analyzer/crates/project-model/test_data/is-proc-macro-project.json

{
    "sysroot_src": null,
    "crates": [
        {
            "display_name": "is_proc_macro",
            "root_module": "$ROOT$src/lib.rs",
            "edition": "2018",
            "deps": [],
            "is_workspace_member": true,
            "is_proc_macro": true
        }
    ]
}