private File compileOne(Type type) {
if (this.flags.contains(Flags.USECACHE)) {
File dir = cache.get(type.getName());
if (dir != null) {
return dir;
}
}
List<JavaFileObject> files = new ArrayList<>();
SourceProcessor accum = (name, src) -> files.add(new SourceFile(name, src));
for (Type dep : type.typeDependencies()) {
dep.generateAsDependency(accum, type.methodDependencies());
}
type.generate(accum);
JavacTask ct =
(JavacTask) this.systemJavaCompiler.getTask(null, this.fm, null, null, null, files);
File destDir = null;
do {
int value = counter.incrementAndGet();
destDir = new File(root, Integer.toString(value));
} while (destDir.exists());
if (this.flags.contains(Flags.VERBOSE)) {
System.out.println("Compilation unit for " + type.getName() + " : compiled into " + destDir);
for (JavaFileObject jfo : files) {
System.out.println(jfo.toString());
}
}
try {
destDir.mkdirs();
this.fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(destDir));
} catch (IOException e) {
throw new RuntimeException(
"IOException encountered during compilation: " + e.getMessage(), e);
}
Boolean result = ct.call();
if (result == Boolean.FALSE) {
throw new RuntimeException("Compilation failure in " + type.getName() + " unit");
}
if (this.flags.contains(Flags.USECACHE)) {
File existing = cache.putIfAbsent(type.getName(), destDir);
if (existing != null) {
deleteDir(destDir);
return existing;
}
} else {
this.tempDirs.add(destDir);
}
return destDir;
}