cargo-semver-checks 0.48.0

Scan your Rust crate for semver violations.
Documentation 
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SemverQuery(
    id: "exported_function_parameter_count_changed",
    human_readable_name: "exported fn parameter count changed",
    description: "An exported function (via #[no_mangle] or #[export_name]) now requires a different number of parameters.",
    required_update: Major,
    lint_level: Deny,
    reference_link: Some("https://doc.rust-lang.org/cargo/reference/semver.html#fn-change-arity"),
    query: r#"
    {
        CrateDiff {
            baseline {
                ffi_exported_function {
                    export_name @tag

                    old_parameter_: parameter @fold @transform(op: "count") @output @tag(name: "parameters") {
                        names: name @output
                    }
                }
            }
            current {
                ffi_exported_function {
                    name @output
                    export_name @filter(op: "=", value: ["%export_name"]) @output

                    current_parameter_: parameter @fold @transform(op: "count") @filter(op: "!=", value: ["%parameters"]) @output

                    span_: span @optional {
                        filename @output
                        begin_line @output
                        end_line @output
                    }
                }
            }
        }
    }"#,
    arguments: {},
    error_message: "An exported function now takes a different number of parameters, which changes its ABI contract.",
    per_result_error_template: Some("{{name}} exported as {{export_name}} now takes {{current_parameter_count}} parameters instead of {{old_parameter_count}}, in {{span_filename}}:{{span_begin_line}}"),
    witness: None,
)