stof 0.3.24

Stof is a unified data interface and interchange format for creating, sharing, and manipulating data. Stof removes the fragile and cumbersome parts of combining and using data in applications.
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//
// Copyright 2024 Formata, Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

int calls: 0
fn dec(func: fn): fn {
    return (a: float, b: float): float => {
        self.calls += 1;
        return func.call(a, b);
    };
}

#[decorator(self.dec)]
fn add(a: float, b: float): float {
    return a + b;
}

#[decorator(self.dec)]
fn add2(a: float, b: float): float {
    return a + b;
}

#[test]
fn add_decorator() {
    let res = self.add(3, 4);
    assertEq(res, 7);
    assertEq(self.calls, 1);

    res = self.add(10, 10);
    assertEq(res, 20);
    assertEq(self.calls, 2);

    res = self.add2(10, 10);
    assertEq(res, 20);
    assertEq(self.calls, 3);
}


keeps_attrs: {
    calls: 0

    fn dec(func: fn): fn {
        return () => {
            self.calls += 1;
            func.call();
        };
    }

    #[decorator(self.dec)]
    #[test]
    fn test() {
        assertEq(self.calls, 1);
    }
}


decorated_type_func: {
    fn track(func: fn): fn {
        return () => {
            self.calls += 1;
            func.call();
        };
    }

    type CallTracker {
        calls: int = 0;

        #[decorator(self.track)]
        fn call() {
            // Don't do anything here
        }
    }

    #[test]
    fn test() {
        let tracker = new CallTracker {
            calls: 40
        };
        tracker.call();
        tracker.call();
        assertEq(tracker.calls, 42);
    }
}