cargo-semver-checks 0.18.3

Scan your Rust crate for semver violations.
Documentation
SemverQuery(
    id: "function_parameter_count_changed",
    human_readable_name: "pub fn parameter count changed",
    description: "Parameter count of a function has changed.",
    required_update: Major,
    reference_link: Some("https://doc.rust-lang.org/cargo/reference/semver.html#fn-change-arity"),
    query: r#"
    {
        CrateDiff {
            baseline {
                item {
                    ... on Function {
                        visibility_limit @filter(op: "=", value: ["$public"]) @output

                        importable_path {
                            path @output @tag
                        }

                        old_parameter_: parameter @fold @transform(op: "count") @output @tag(name: "parameters")
                    }
                }
            }
            current {
                item {
                    ... on Function {
                        visibility_limit @filter(op: "=", value: ["$public"])
                        name @output

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

                        importable_path {
                            path @filter(op: "=", value: ["%path"])
                        }

                        span_: span @optional {
                            filename @output
                            begin_line @output
                        }
                    }
                }
            }
        }
    }"#,
    arguments: {
        "public": "public",
    },
    error_message: "A publicly-visible function now takes a different number of parameters.",
    per_result_error_template: Some("{{join \"::\" path}} now takes {{current_parameter_count}} parameters instead of {{old_parameter_count}}, in {{span_filename}}:{{span_begin_line}}"),
)