GWT maven编译的默认优化级别是什么？

根据，默认优化级别为-1。目前尚不清楚这与哪个优化级别相对应。那么，-1是否意味着代码在0到9之间的某个级别进行了优化？或者它完全是另一回事？

这意味着它使用GWT编译器的默认值。我相信默认值是9

---

请参阅和

GWT有9种不同的优化技巧，从级别1到级别9，除了常规的编译器级别的东西。但是，我们可以通过将其设置为0来选择退出这些优化。如代码中所述，不建议这样做

您可能可以从ArgHandlerOptimize.java中的GWT源代码中获取更多信息

 @Override
  public String getPurpose() {
    return "Sets the optimization level used by the compiler.  0=none 9=maximum.";
  }

 * Set the optimization level from the command line.  For now, level 1 is the same
 * as draft compile, and level 9 is the same as the default (maximium optimization).
 * 
 * TODO(zundel): In theory, a level 0 should be possible, where all optimizers 
 * are eliminated for the fastest possible compile.  In practice, code generation 
 * depends on some optimizers being run.

从ArgHandlerOptimize.java的注释部分

 @Override
  public String getPurpose() {
    return "Sets the optimization level used by the compiler.  0=none 9=maximum.";
  }

 * Set the optimization level from the command line.  For now, level 1 is the same
 * as draft compile, and level 9 is the same as the default (maximium optimization).
 * 
 * TODO(zundel): In theory, a level 0 should be possible, where all optimizers 
 * are eliminated for the fastest possible compile.  In practice, code generation 
 * depends on some optimizers being run.

---

我看到您使用了force/source:）我从未寻找过它，但我认为它一定是开源的。它托管在哪里？默认GWT优化当前为9，请参阅OptionOptimize.java相关的源代码：