Java Code Examples for com.sun.tools.javac.util.Context#Factory

@SuppressWarnings("all")
public static void preRegister(final Context context) {
	if (context.get(scannerFactoryKey) == null) {
		// Careful! There is voodoo magic here!
		//
		// Context.Factory is parameterized. make() is for javac6 and below; make(Context) is for javac7 and up.
		// this anonymous inner class definition is intentionally 'raw' - the return type of both 'make' methods is 'T',
		// which means the compiler will only generate the correct "real" override method (with returntype Object, which is
		// the lower bound for T, as a synthetic accessor for the make with returntype ScannerFactory) for that make method which
		// is actually on the classpath (either make() for javac6-, or make(Context) for javac7+).
		//
		// We normally solve this issue via src/stubs, with BOTH make methods listed, but for some reason the presence of a stubbed out
		// Context (or even a complete copy, it doesn't matter) results in a really strange eclipse bug, where any mention of any kind
		// of com.sun.tools.javac.tree.TreeMaker in a source file disables ALL usage of 'go to declaration' and auto-complete in the entire
		// source file.
		//
		// Thus, in short:
		// * Do NOT parameterize the anonymous inner class literal.
		// * Leave the return types as 'j.l.Object'.
		// * Leave both make methods intact; deleting one has no effect on javac6- / javac7+, but breaks the other. Hard to test for.
		// * Do not stub com.sun.tools.javac.util.Context or any of its inner types, like Factory.
		@SuppressWarnings("all")
		class MyFactory implements Context.Factory {
			// This overrides the javac6- version of make.
			public Object make() {
				return new CommentCollectingScannerFactory(context);
			}
			
			// This overrides the javac7+ version.
			public Object make(Context c) {
				return new CommentCollectingScannerFactory(c);
			}
		}
		@SuppressWarnings("unchecked") Context.Factory<ScannerFactory> factory = new MyFactory();
		context.put(scannerFactoryKey, factory);
	}
}
 

@SuppressWarnings("all")
public static void preRegister(final Context context) {
	if (context.get(scannerFactoryKey) == null) {
		// Careful! There is voodoo magic here!
		//
		// Context.Factory is parameterized. make() is for javac6 and below; make(Context) is for javac7 and up.
		// this anonymous inner class definition is intentionally 'raw' - the return type of both 'make' methods is 'T',
		// which means the compiler will only generate the correct "real" override method (with returntype Object, which is
		// the lower bound for T, as a synthetic accessor for the make with returntype ScannerFactory) for that make method which
		// is actually on the classpath (either make() for javac6-, or make(Context) for javac7+).
		//
		// We normally solve this issue via src/stubs, with BOTH make methods listed, but for some reason the presence of a stubbed out
		// Context (or even a complete copy, it doesn't matter) results in a really strange eclipse bug, where any mention of any kind
		// of com.sun.tools.javac.tree.TreeMaker in a source file disables ALL usage of 'go to declaration' and auto-complete in the entire
		// source file.
		//
		// Thus, in short:
		// * Do NOT parameterize the anonymous inner class literal.
		// * Leave the return types as 'j.l.Object'.
		// * Leave both make methods intact; deleting one has no effect on javac6- / javac7+, but breaks the other. Hard to test for.
		// * Do not stub com.sun.tools.javac.util.Context or any of its inner types, like Factory.
		@SuppressWarnings("all")
		class MyFactory implements Context.Factory {
			// This overrides the javac6- version of make.
			public Object make() {
				return new CommentCollectingScannerFactory(context);
			}
			
			// This overrides the javac7+ version of make.
			public Object make(Context c) {
				return new CommentCollectingScannerFactory(c);
			}
		}
		
		@SuppressWarnings("unchecked") Context.Factory<Scanner.Factory> factory = new MyFactory();
		context.put(scannerFactoryKey, factory);
	}
}
 

@SuppressWarnings("all")
public static void preRegister(final Context context) {
	if (context.get(scannerFactoryKey) == null) {
		// Careful! There is voodoo magic here!
		//
		// Context.Factory is parameterized. make() is for javac6 and below; make(Context) is for javac7 and up.
		// this anonymous inner class definition is intentionally 'raw' - the return type of both 'make' methods is 'T',
		// which means the compiler will only generate the correct "real" override method (with returntype Object, which is
		// the lower bound for T, as a synthetic accessor for the make with returntype ScannerFactory) for that make method which
		// is actually on the classpath (either make() for javac6-, or make(Context) for javac7+).
		//
		// We normally solve this issue via src/stubs, with BOTH make methods listed, but for some reason the presence of a stubbed out
		// Context (or even a complete copy, it doesn't matter) results in a really strange eclipse bug, where any mention of any kind
		// of com.sun.tools.javac.tree.TreeMaker in a source file disables ALL usage of 'go to declaration' and auto-complete in the entire
		// source file.
		//
		// Thus, in short:
		// * Do NOT parameterize the anonymous inner class literal.
		// * Leave the return types as 'j.l.Object'.
		// * Leave both make methods intact; deleting one has no effect on javac6- / javac7+, but breaks the other. Hard to test for.
		// * Do not stub com.sun.tools.javac.util.Context or any of its inner types, like Factory.
		@SuppressWarnings("all")
		class MyFactory implements Context.Factory {
			// This overrides the javac6- version of make.
			public Object make() {
				return new CommentCollectingScannerFactory(context);
			}
			
			// This overrides the javac7+ version.
			public Object make(Context c) {
				return new CommentCollectingScannerFactory(c);
			}
		}
		@SuppressWarnings("unchecked") Context.Factory<ScannerFactory> factory = new MyFactory();
		context.put(scannerFactoryKey, factory);
	}
}