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keeferrourke/JavaUtil.java

Created November 18, 2020 18:12
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  1. keeferrourke created this gist Nov 18, 2020.
    28 changes: 28 additions & 0 deletions JavaUtil.java
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,28 @@
    class JavaUtil {
    /**
    * Runtime checks, similar to the Kotlin standard library check method.
    */
    public static void check(boolean condition, String message) {
    if (!condition) {
    throw new IllegalStateException(message);
    }
    }

    public static void check(boolean condition) {
    check(condition, "check failed");
    }

    /**
    * Silence annoying IDE errors when drafting methods, similar to the Kotlin
    * standard library method.
    * For method stubs, simply `return TODO("Not implemented");`.
    */
    @SuppressWarnings("UnusedReturnValue")
    public static <T> T TODO(String message) {
    throw new IllegalStateException(message);
    }

    public static <T> T TODO() {
    throw new IllegalStateException("TODO");
    }
    }