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package org.checkerframework.javacutil;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.util.TreePath;
import com.sun.source.util.TreePathScanner;
import javax.lang.model.element.TypeElement;
/**
* Process the types in an AST in a trivial manner, with hooks for derived classes to actually do
* something.
*/
public abstract class BasicTypeProcessor extends AbstractTypeProcessor {
/** The source tree that's being scanned. */
protected CompilationUnitTree currentRoot;
/** Create a TreePathScanner at the given root. */
protected abstract TreePathScanner<?, ?> createTreePathScanner(CompilationUnitTree root);
/** Visit the tree path for the type element. */
@Override
public void typeProcess(TypeElement e, TreePath p) {
currentRoot = p.getCompilationUnit();
TreePathScanner<?, ?> scanner = null;
try {
scanner = createTreePathScanner(currentRoot);
scanner.scan(p, null);
} catch (Throwable t) {
System.err.println(
"BasicTypeProcessor.typeProcess: unexpected Throwable ("
+ t.getClass().getSimpleName()
+ ") when processing "
+ currentRoot.getSourceFile().getName()
+ (t.getMessage() != null ? "; message: " + t.getMessage() : ""));
}
}
}
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