// https://webassembly.github.io/spec/js-api/#enumdef-valuetype
enum ValueType {
    "i32",
    "i64",
    "f32",
    "f64",
    "v128",
    "externref",
    "anyfunc",
};

// https://webassembly.github.io/spec/js-api/#dictdef-globaldescriptor
dictionary GlobalDescriptor {
    required ValueType value;
    boolean mutable = false;
};

// https://webassembly.github.io/spec/js-api/#global
[LegacyNamespace=WebAssembly, Exposed=*]
interface Global {
    constructor(GlobalDescriptor descriptor, optional any v);
    any valueOf();
    attribute any value;
};