public List<OptFlag.Arg<?>> filterArgs(Set<OptFlag<?>> flags) {
List<Arg<?>> matches = new ArrayList<>();
for (Arg<?> arg : arguments) {
if (arg.flag != null && flags.contains(arg.flag())) matches.add(arg);
}
return matches;
}
/**
* Iterates over arguments parsed from the command line and applies them to this object. Any
* source arguments are added to {@code source}.
*
* @param source The set of source filenames provided on the command line.
*/
public void printCommandLine(PrintStream out) {
Set<OptFlag<?>> seen = new LinkedHashSet<>();
for (Arg<?> arg : arguments) {
if (arg.flag != null) {
seen.add(arg.flag);
}
out.print(" " + arg.toString());
}
for (OptFlag<?> flag : flags) {
if (seen.contains(flag)) continue;
else {
Arg<?> arg = flag.defaultArg(arguments);
if (arg != null) out.print(" " + arg.toString());
}
}
out.println();
}
/**
* Parse a command
*
* @return the next index to process. i.e., if calling this method processes two commands, then
* the return value should be index+2
*/
protected int parseCommand(String args[], int index, Set<String> source)
throws UsageError, Main.TerminationException {
// Find a flag whose id matches args[index] and let it process the
// arguments.
for (OptFlag<?> flag : flags) {
if (flag.ids.contains(args[index])) {
Arg<?> arg = flag.handle(args, index + 1);
arguments.add(arg);
return arg.next();
}
}
if (!args[index].startsWith("-")) {
index = parseSourceArg(args, index);
}
return index;
}
/**
* Iterates over arguments parsed from the command line and applies them to this object. Any
* source arguments are added to {@code source}.
*
* @param source The set of source filenames provided on the command line.
*/
protected final void applyArgs(Set<String> source) throws UsageError {
// Set up defaults first.
for (OptFlag<?> flag : flags) {
Arg<?> arg = flag.defaultArg(arguments);
if (arg != null) handleArg(arg);
}
// Let user-specified arguments override the defaults.
for (Arg<?> arg : arguments) {
if (arg.flag == null) {
handleSourceArg(arg, source);
} else {
try {
handleArg(arg);
} catch (UsageError e) {
throw e;
} catch (Throwable e) {
throw new InternalCompilerError(
"Error while handling arg " + arg + " created by " + arg.flag().getClass(), e);
}
}
}
}
protected int parseSourceArg(String[] args, int index) {
Arg<String> src = new Arg<>(index + 1, args[index]);
arguments.add(src);
return src.next();
}
/**
* Process a source argument and add it to the source collection.
*
* @param source The set of filenames to compile.
*/
protected void handleSourceArg(Arg<?> arg, Set<String> source) {
String filename = (String) arg.value();
source.add(filename);
}
/** Process the option specified by {@code arg} */
protected void handleArg(Arg<?> arg) throws UsageError {
assert arg.flag != null;
Set<String> ids = arg.flag().ids();
if (ids.contains("-d")) {
setClassOutput((File) arg.value());
} else if (ids.contains("-D")) {
setSourceOutput((File) arg.value());
} else if (ids.contains("-classpath")) {
setClasspath(this.<List<File>, File>sccast(arg.value(), File.class));
} else if (ids.contains("-bootclasspath")) {
setBootclasspath(this.<List<File>, File>sccast(arg.value(), File.class));
} else if (ids.contains("-addbootcp")) {
addBootCP(this.<List<File>, File>sccast(arg.value(), File.class));
} else if (ids.contains("-sourcepath")) {
setSourcepath(this.<List<File>, File>sccast(arg.value(), File.class));
} else if (ids.contains("-commandlineonly")) {
setCommandLineOnly((Boolean) arg.value());
} else if (ids.contains("-preferclassfiles")) {
setIgnoreModTimes((Boolean) arg.value());
} else if (ids.contains("-assert")) {
setAssertions((Boolean) arg.value());
} else if (ids.contains("-fqcn")) {
setFullyQualifiedNames((Boolean) arg.value());
} else if (ids.contains("-g")) {
setGenerateDebugInfo((Boolean) arg.value());
} else if (ids.contains("-c")) {
setOutputOnly((Boolean) arg.value());
} else if (ids.contains("-errors")) {
setErrorCount((Integer) arg.value());
} else if (ids.contains("-w")) {
setOutputWidth((Integer) arg.value());
} else if (ids.contains("-postcompiler")) {
setPostCompiler((String) arg.value());
} else if (ids.contains("-postopts")) {
setPostCompilerOpts((String) arg.value());
} else if (ids.contains("-stdout")) {
setOutputStdOut((Boolean) arg.value());
} else if (ids.contains("-sx")) {
addSourceExtension((String) arg.value());
} else if (ids.contains("-ox")) {
setOutputExtension((String) arg.value());
} else if (ids.contains("-noserial")) {
setNoSerializedTypes((Boolean) arg.value());
} else if (ids.contains("-dump")) {
addDumpAST((String) arg.value());
} else if (ids.contains("-print")) {
addPrintAST((String) arg.value());
} else if (ids.contains("-disable")) {
addDisablePass((String) arg.value());
} else if (ids.contains("-nooutput")) {
setNoOutput((Boolean) arg.value());
} else if (ids.contains("-verbose")) {
setVerbose((Boolean) arg.value());
} else if (ids.contains("-report")) {
@SuppressWarnings("unchecked")
Pair<String, Integer> pair = (Pair<String, Integer>) arg.value();
addReportTopic(pair.part1(), pair.part2());
} else if (ids.contains("-debugpositions")) {
setDebugPositions((Boolean) arg.value());
} else if (ids.contains("-simpleoutput")) {
setSimpleOutput((Boolean) arg.value());
} else if (ids.contains("-mergestrings")) {
setMergeStrings((Boolean) arg.value());
} else if (ids.contains("-print-arguments")) {
print_args = (Boolean) arg.value();
} else if (ids.contains("-no-output-to-fs")) {
noOutputToFS = (Boolean) arg.value();
} else throw new UnhandledArgument(arg);
}