cargo-semver-checks 0.2.1

Scan your Rust crate for semver violations.
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SemverQuery(
    id: "struct_kind_changed",
    human_readable_name: "pub struct changed kind (plain / tuple / unit)",
    description: "A publicly-visible struct has changed to another kind of struct (plain / tuple / unit struct), which is a major breaking change for code that depends on it.",
    required_update: Major,
    query: r#"
    {
        CrateDiff {
            baseline {
                item {
                    ... on Struct {
                        visibility_limit @filter(op: "=", value: ["$public"])
                        struct_name: name @output @tag
                        prior_kind: struct_type @output @tag

                        baseline_span_: span @optional {
                            filename @output
                            begin_line @output
                        }
                    }
                }
            }
            current {
                item {
                    ... on Struct {
                        visibility_limit @filter(op: "=", value: ["$public"])
                        name @filter(op: "=", value: ["%struct_name"])
                        found_kind: struct_type @filter(op: "!=", value: ["%prior_kind"]) @output

                        found_span_: span @optional {
                            filename @output
                            begin_line @output
                        }
                    }
                }
            }
        }
    }"#,
    arguments: {
        "public": "public",
    },
    error_message: "A publicly-visible struct has changed from one kind (plain / tuple / unit) to another.",
)