src/tests/fidl/source_compatibility/union-strict-flexible/test.json

{
    "bindings": {
        "dart": {
            "starting_fidl": "step_00_before",
            "starting_src": "dart/step_00_before.dart",
            "steps": [
                {
                    "instructions": [
                        "Add a default case to any switch statements on the union to handle new unknown variants"
                    ],
                    "source": "dart/step_01_during.dart",
                    "step_num": 1
                },
                {
                    "fidl": "step_02_after",
                    "step_num": 2
                },
                {
                    "instructions": [
                        "Replace the default case with the unknown tag."
                    ],
                    "source": "dart/step_03_after.dart",
                    "step_num": 3
                }
            ]
        },
        "go": {
            "starting_fidl": "step_00_before",
            "starting_src": "go/step_00_before.go",
            "steps": [
                {
                    "fidl": "step_02_after",
                    "step_num": 2
                },
                {
                    "instructions": [
                        "You may now use any flexible union specific APIs"
                    ],
                    "source": "go/step_03_after.go",
                    "step_num": 3
                }
            ]
        },
        "hlcpp": {
            "starting_fidl": "step_00_before",
            "starting_src": "hlcpp/step_00_before.cc",
            "steps": [
                {
                    "instructions": [
                        "Add a default case to any switch statements on the union to handle new unknown variants"
                    ],
                    "source": "hlcpp/step_01_during.cc",
                    "step_num": 1
                },
                {
                    "fidl": "step_02_after",
                    "step_num": 2
                },
                {
                    "instructions": [
                        "Replace the default case with the `kUnknown` tag.",
                        "You may now use any flexible union specific APIs"
                    ],
                    "source": "hlcpp/step_03_after.cc",
                    "step_num": 3
                }
            ]
        },
        "llcpp": {
            "starting_fidl": "step_00_before",
            "starting_src": "llcpp/step_00_before.cc",
            "steps": [
                {
                    "instructions": [
                        "Add a default case to any switch statements on the union to handle new unknown variants"
                    ],
                    "source": "llcpp/step_01_during.cc",
                    "step_num": 1
                },
                {
                    "fidl": "step_02_after",
                    "step_num": 2
                },
                {
                    "instructions": [
                        "Replace the default case with the `kUnknown` tag.",
                        "You may now use any flexible union specific APIs"
                    ],
                    "source": "llcpp/step_03_after.cc",
                    "step_num": 3
                }
            ]
        },
        "rust": {
            "starting_fidl": "step_00_before",
            "starting_src": "rust/step_00_before.rs",
            "steps": [
                {
                    "instructions": [
                        "Add `[allow(unreachable_patterns)]` and an underscore arm to match statements on the union"
                    ],
                    "source": "rust/step_01_during.rs",
                    "step_num": 1
                },
                {
                    "fidl": "step_02_after",
                    "step_num": 2
                },
                {
                    "instructions": [
                        "Remove the attribute and replace the underscore arm with the generated macro to match against unknown variants"
                    ],
                    "source": "rust/step_03_after.rs",
                    "step_num": 3
                }
            ]
        }
    },
    "fidl": {
        "step_00_before": {
            "instructions": [],
            "source": "fidl/step_00_before.test.fidl"
        },
        "step_02_after": {
            "instructions": [
                "Change the union from `strict` to `flexible`"
            ],
            "source": "fidl/step_02_after.test.fidl"
        }
    },
    "title": "Change a union from strict to flexible"
}