public void usageHeader(PrintStream out) {
out.println(
"usage: "
+ extension.compilerName()
+ " [options] "
+ "<source-file>."
+ extension.fileExtensions()[0]
+ " ...");
out.println("where [options] includes:");
// usageForFlag(out, "@<file>", "read options from <file>");
}
public static void main(String args[]) throws IllegalArgumentException, SemanticException {
String extension = "jl";
String className;
if (args.length == 3 && args[0].equals("-ext")) extension = args[1];
if ((extension == null && args.length != 1) || (extension != null && args.length != 3)) {
System.err.println(
"Usage: " + "polyglot.util.typedump.Main " + "[-ext <extension>] <classname>");
System.exit(1);
}
if (extension == null) className = args[0];
else className = args[2];
ExtensionInfo extInfo = null;
String extClassName = "polyglot.ext." + extension + ".ExtensionInfo";
Class<?> extClass = null;
try {
extClass = Class.forName(extClassName);
} catch (ClassNotFoundException e) {
try {
extClass = Class.forName(extension);
} catch (ClassNotFoundException e2) {
System.err.println(
"Extension " + extension + " not found: could not find class " + extClassName + ".");
System.err.println(e2.getMessage());
System.exit(1);
}
}
try {
extInfo = (ExtensionInfo) extClass.newInstance();
} catch (Exception e) {
System.err.println(
"Extension "
+ extension
+ " could not be loaded: "
+ "could not instantiate "
+ extClassName
+ ".");
System.exit(1);
}
try {
// now try to establish the type system correctly.
Options options = extInfo.getOptions();
Options.global = options;
configureOptions(options);
StdErrorQueue eq = new StdErrorQueue(System.err, 100, extInfo.compilerName());
new Compiler(extInfo, eq);
TypeSystem ts = extInfo.typeSystem();
TypeDumper t = TypeDumper.load(className, ts, extInfo.version());
CodeWriter cw = new OptimalCodeWriter(System.out, 100);
t.dump(cw);
cw.newline(0);
try {
cw.flush();
} catch (java.io.IOException exn) {
System.err.println(exn.getMessage());
}
} catch (ClassNotFoundException exn) {
System.err.println("Could not load .class: " + className);
System.err.println(exn.getMessage());
} catch (NoSuchFieldException exn) {
System.err.println("Could not reflect jlc fields");
System.err.println(exn.getMessage());
} catch (SecurityException exn) {
System.err.println("Security policy error.");
System.err.println(exn.getMessage());
}
}