require("./core");
var types = require("../lib/types");
var def = types.Type.def;
var or = types.Type.or;
var builtin = types.builtInTypes;
var isBoolean = builtin.boolean;
var defaults = require("../lib/shared").defaults;

def("Function")
    .field("async", isBoolean, defaults["false"]);

def("SpreadProperty")
    .bases("Node")
    .build("argument")
    .field("argument", def("Expression"));

def("ObjectExpression")
    .field("properties", [or(def("Property"), def("SpreadProperty"))]);

def("SpreadPropertyPattern")
    .bases("Pattern")
    .build("argument")
    .field("argument", def("Pattern"));

def("ObjectPattern")
    .field("properties", [or(
        def("PropertyPattern"),
        def("SpreadPropertyPattern"),
        // used by esprima
        def("Property"),
        def("SpreadProperty")
    )]);

def("AwaitExpression")
    .bases("Expression")
    .build("argument", "all")
    .field("argument", or(def("Expression"), null))
    .field("all", isBoolean, defaults["false"]);