Method defaultValue

src/main/java/org/dynjs/runtime/DynObject.java:277–322

(ExecutionContext context, String hint)

    }

    @Override
    public Object defaultValue(ExecutionContext context, String hint) {
        // 8.12.8

        if (hint == null) {
            hint = "Number";
        }

        if (hint.equals("String")) {
            Object toString = get(context, "toString");
            if (toString instanceof JSFunction) {
                Object result = context.call((JSFunction) toString, this);
                if (result instanceof String || result instanceof Number || result instanceof Boolean || result == Types.UNDEFINED || result == Types.NULL) {
                    return result;
                }
            }

            Object valueOf = get(context, "valueOf");
            if (valueOf instanceof JSFunction) {
                Object result = context.call((JSFunction) valueOf, this);
                if (result instanceof String || result instanceof Number || result instanceof Boolean || result == Types.UNDEFINED || result == Types.NULL) {
                    return result;
                }
            }
            throw new ThrowException(context, context.createTypeError("String coercion must return a primitive value"));
        } else if (hint.equals("Number")) {
            Object valueOf = get(context, "valueOf");
            if (valueOf instanceof JSFunction) {
                Object result = context.call((JSFunction) valueOf, this);
                if (result instanceof String || result instanceof Number || result instanceof Boolean || result == Types.UNDEFINED || result == Types.NULL) {
                    return result;
                }
            }

            Object toString = get(context, "toString");
            if (toString instanceof JSFunction) {
                Object result = context.call((JSFunction) toString, this);
                if (result instanceof String || result instanceof Number || result instanceof Boolean || result == Types.UNDEFINED || result == Types.NULL) {
                    return result;
                }
            }
            throw new ThrowException(context, context.createTypeError("String coercion must return a primitive value"));
        }

        return null;
    }

    @Override
    public boolean defineOwnProperty(ExecutionContext context, String name, PropertyDescriptor desc, boolean shouldThrow) {