These warnings look new: Jul 16, 2019 6:55:16 PM com.google.javascript.jscomp.LoggerErrorManager println WARNING: externs/dialogPolyfill.js:15: WARNING - accessing name dialogPolyfill in externs has no effect. Perhaps you forgot to add a var keyword? dialogPolyfill = function() { ^^^^^^^^^^^^^^
Jul 16, 2019 6:55:16 PM com.google.javascript.jscomp.LoggerErrorManager println WARNING: externs/dialogPolyfill.js:15: WARNING - variable dialogPolyfill is undeclared dialogPolyfill = function() { ^^^^^^^^^^^^^^ Jul 16, 2019 6:55:16 PM com.google.javascript.jscomp.LoggerErrorManager println WARNING: externs/dialogPolyfill.js:23: WARNING - name dialogPolyfill is not defined in the externs. dialogPolyfill.registerDialog = function(dialog) { ^^^^^^^^^^^^^^ Jul 16, 2019 6:55:16 PM com.google.javascript.jscomp.LoggerErrorManager println WARNING: externs/hljs.js:19: WARNING - accessing name hljs in externs has no effect. Perhaps you forgot to add a var keyword? hljs = function() { ^^^^ Jul 16, 2019 6:55:16 PM com.google.javascript.jscomp.LoggerErrorManager println WARNING: externs/hljs.js:19: WARNING - variable hljs is undeclared hljs = function() { ^^^^ Jul 16, 2019 6:55:16 PM com.google.javascript.jscomp.LoggerErrorManager println WARNING: externs/hljs.js:27: WARNING - name hljs is not defined in the externs. hljs.highlightBlock = function(block) { ^^^^ Any thoughts on this? > On Jul 15, 2019, at 10:32 PM, Josh Tynjala <joshtynj...@bowlerhat.dev> wrote: > > Hey folks, > > I just pushed some commits to royale-compiler and royale-asjs, and I wanted > to add a little explanation, and some possible troubleshooting advice if > anything seems to have broken in your apps. > > My work over the last week has been to fix an issue related to specifying > dependencies when compiling libraries for JS. As you probably know, the > compiler supports two options for adding libraries as dependencies, > library-path and external-library-path. The library-path compiler option > basically says "include all classes that I use from this SWC in the final > output". It's typically what you use when compiling an app that uses a > library. The external-library-path compiler option basically says "if I use > anything from this SWC, check that I'm using the types correctly, but don't > include any of classes from this SWC in the final output". > > If you're compiling an app, you typically use library-path for everything. > You use external-library-path only for dependencies like > playerglobal.swc/airglobal.swc in Flash or typedef SWCs in JS. Basically, > for an app project, external-library-path is for classes that are provided > natively by the Flash runtime or a web browser, like Chrome or Firefox. > > When compiling libraries, external-library-path is also used to prevent the > compiler from creating a "fat" library that stuffs in all of the > dependencies. Let's say that you have a library, A.swc. It provides some > core functionality that is needed by both B.swc and C.swc. When we compile > B.swc and C.swc, we don't want the classes from A.swc duplicated in both of > them. So we add A.swc to the external-library-path when compiling B.swc or > C.swc. Then, if you use those SWCs when compiling an app, you need to add > A.swc, B.swc, and C.swc to the library-path. > > To put that in Royale terms, A.swc is something like LanguageJS.swc or > CoreJS.swc. They're some of our lowest-level SWCs in the framework. B.swc > and C.swc are more like BasicJS.swc or JewelJS.swc, and they tend to share > multiple classes from the lower-level stuff. > > Up until now, library-path and external-library-path were a little quirky > when compiling to JS. It was related to the goog.provide() and > goog.require() calls that you might have seen in the generated JS. These > are from the module system that we use in Royale. The compiler didn't know > how to differentiate between classes that had goog.provide() and classes > that were typedefs for JS libraries. It treated everything on the > external-library-path as a typedef, and this led to missing goog.require() > calls in the generated JS. To work around this, when we specified > dependencies in our framework SWCs, we used library-path to ensure that > goog.require() would be used. > > This workaround of using library-path led to "fat" SWCs that contained all > of their dependencies. Low-level classes in SWCs like CoreJS were > duplicated in higher-level SWCs. This led to the compiler getting confused > about exactly where a class was defined. > > This has resulted in some minor issues here and there, but nothing too > major until recently. However, Harbs noticed the other day that it caused > the compiler to copy extra default CSS into apps from SWCs that you may not > have been using. So, you might build an app with the Basic components, but > you'd get extra CSS from Jewel or MaterialDesignLite. This could mess up > your app's styling pretty dramatically. > > I updated the compiler to better detect when a class needs goog.require() > and when it's a typedef. If that class comes from a SWC, the compiler knows > to check for an included file like, js/out/com/example/MyClass.js. If the > generated JS is there, goog.require() is necessary. If it's missing, it's > treated as a typedef class instead. If the class is an .as source file > instead, the compiler looks for the @externs asdoc tag to determine if it's > a typedef class (and everything else needs goog.require() instead). > > By the way, if we ever support other module systems, it shouldn't be too > difficult to extend this code to detect different SWC layouts for each > module system. > > If your project is an app, this change should not cause any problems. > You're probably using library-path and external-library-path correctly. > > If you have a project that is a library, you should check your compiler > options to see if you are using library-path and external-library-path > correctly. If your library depends on another library, you probably should > be using external-library-path because you don't want a "fat" SWC. In other > words, if you're using library-path in a library project, you probably need > to change that to external-library-path. > > If you have any custom typedef SWCs, you may want to recompile them. At one > point, the compiler had a bug where classes in typedef SWCs were being > incorrectly added to the "js/out" folder in the SWC, but that was > incorrect. They should have been placed in an "externs" folder instead. The > compiler handles this correctly now, but old typedef SWCs may look like > goog.require() SWCs instead. To be sure, you can open a SWC file in any > program that can read ZIP files, and you'll see the internal folder > structure. If a typedef SWC has a "js/out" folder, it's not going to work > properly. > > If you're working directly out of the royale-compiler and royale-asjs Git > repos, be sure to update and rebuild them both. The nightly builds should > be updated shortly. > > When you build any apps, be sure to clean first, just to be sure that you > have the latest JS files from the SWCs. > > If you run into any other problems with these changes, please let me know. > I'll get them fixed right away! > > -- > Josh Tynjala > Bowler Hat LLC <https://bowlerhat.dev>