cargo-semver-checks 0.40.0

Scan your Rust crate for semver violations.
Documentation 
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SemverQuery(
    id: "trait_added_supertrait",
    human_readable_name: "non-sealed trait added new supertraits",
    description: "A non-sealed trait added one or more supertraits, which breaks downstream implementations of the trait",
    required_update: Major,
    lint_level: Deny,
    reference_link: Some("https://doc.rust-lang.org/cargo/reference/semver.html#generic-bounds-tighten"),
    query: r#"
    {
        CrateDiff {
            current {
                item {
                    ... on Trait {
                        visibility_limit @filter(op: "=", value: ["$public"])

                        importable_path {
                            path @output @tag
                            public_api @filter(op: "=", value: ["$true"])
                        }

                        supertrait {
                            supertrait: name @output @tag
                        }

                        span_: span @optional {
                            filename @output
                            begin_line @output
                            end_line @output
                        }
                    }
                }
            }
            baseline {
                item {
                    ... on Trait {
                        visibility_limit @filter(op: "=", value: ["$public"]) @output
                        public_api_sealed @filter(op: "!=", value: ["$true"])

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

                        supertrait @fold @transform(op: "count") @filter(op: "=", value: ["$zero"]) {
                            name @filter(op: "=", value: ["%supertrait"])
                        }
                    }
                }
            }
        }
    }"#,
    arguments: {
        "public": "public",
        "true": true,
        "zero": 0,
    },
    error_message: "A non-sealed trait added one or more supertraits, which breaks downstream implementations of the trait",
    per_result_error_template: Some("trait {{join \"::\" path}} gained {{supertrait}} in file {{span_filename}}:{{span_begin_line}}"),
)