Method operator<<

tools/ktx/command_compare.cpp:558–584

    template <typename T>
    void operator<<(const DiffBase<T>& diff) {
        if (!diff.isDifferent()) return;
        different = true;

        const auto space = outputFormat != OutputFormat::json_mini ?  " " : "";
        const auto nl = outputFormat != OutputFormat::json_mini ?  "\n" : "";

        if (outputFormat == OutputFormat::text) {
            printContext();
            if (diff.hasValue(0))
                printIndent(0, "-{}: {}\n", diff.textHeader, diff.value(0, outputFormat));
            if (diff.hasValue(1))
                printIndent(0, "+{}: {}\n", diff.textHeader, diff.value(1, outputFormat));
        } else {
            beginJsonOutput();
            printIndent(2, "\"{}\":{}[{}", diff.jsonPath, space, nl);
            if (diff.hasValue(0))
                printIndent(3, "{},{}", diff.value(0, outputFormat), nl);
            else
                printIndent(3, "null,{}", nl);
            if (diff.hasValue(1))
                printIndent(3, "{}{}", diff.value(1, outputFormat), nl);
            else
                printIndent(3, "null{}", nl);
            printIndent(2, "]");
        }
    }

    template <typename T>
    void operator<<(const DiffComplex<T>& diff) {