/**
* Print unit consisting of package clause and import statements in toplevel, followed by class
* definition. if class definition == null, print all definitions in toplevel.
*
* @param tree The toplevel tree
* @param cdef The class definition, which is assumed to be part of the toplevel tree.
*/
public void printUnit(JCCompilationUnit tree, JCClassDecl cdef) throws IOException {
docComments = tree.docComments;
printDocComment(tree);
if (tree.pid != null) {
print("package ");
printExpr(tree.pid);
print(";");
println();
}
boolean firstImport = true;
for (List<JCTree> l = tree.defs;
l.nonEmpty() && (cdef == null || l.head.hasTag(IMPORT));
l = l.tail) {
if (l.head.hasTag(IMPORT)) {
JCImport imp = (JCImport) l.head;
Name name = TreeInfo.name(imp.qualid);
if (name == name.table.names.asterisk
|| cdef == null
|| isUsed(TreeInfo.symbol(imp.qualid), cdef)) {
if (firstImport) {
firstImport = false;
println();
}
printStat(imp);
}
} else {
printStat(l.head);
}
}
if (cdef != null) {
printStat(cdef);
println();
}
}
public void visitBinary(JCBinary tree) {
try {
int ownprec = TreeInfo.opPrec(tree.getTag());
String opname = operatorName(tree.getTag());
open(prec, ownprec);
printExpr(tree.lhs, ownprec);
print(" " + opname + " ");
printExpr(tree.rhs, ownprec + 1);
close(prec, ownprec);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
public void visitUnary(JCUnary tree) {
try {
int ownprec = TreeInfo.opPrec(tree.getTag());
String opname = operatorName(tree.getTag());
open(prec, ownprec);
if (!tree.getTag().isPostUnaryOp()) {
print(opname);
printExpr(tree.arg, ownprec);
} else {
printExpr(tree.arg, ownprec);
print(opname);
}
close(prec, ownprec);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
/** Print a set of modifiers. */
public void printFlags(long flags) throws IOException {
if ((flags & SYNTHETIC) != 0) print("/*synthetic*/ ");
print(TreeInfo.flagNames(flags));
if ((flags & ExtendedStandardFlags) != 0) print(" ");
if ((flags & ANNOTATION) != 0) print("@");
}
// Prints the inner element type of a nested array
private void printBaseElementType(JCTree tree) throws IOException {
printExpr(TreeInfo.innermostType(tree));
}