import ballerina/io;
type Coord record {
float x;
float y;
};
public function main() {
json j = {x: 1.0, y: 2.0};
// With mutable values, it would not be type-safe to allow a cast.
// Cast to `T` will work on the mutable structure `s` only if the inherent type
// of `s` is a subtype of `T`.
// Casting of immutable value will work.
json k = j.cloneReadOnly();
Coord c = <Coord> k;
io:println(c.x);
io:println(c.y);
}
Converting From JSON to User-Defined TypeWith mutable values, would not be type-safe to allow a cast.
Mutable structures have the |
import ballerina/io;
type Coord record {
float x;
float y;
};
public function main() {
json j = {x: 1.0, y: 2.0};
json k = j.cloneReadOnly();
Coord c = <Coord> k;
With mutable values, it would not be type-safe to allow a cast.
Cast to T will work on the mutable structure s only if the inherent type
of s is a subtype of T.
Casting of immutable value will work.
io:println(c.x);
io:println(c.y);
}
bal run converting_from_json_to_user_defined_type.bal
1.0
2.0
