/**
* Parse the specified files returning a list of abstract syntax trees.
*
* @throws java.io.IOException TODO
* @return a list of abstract syntax trees
*/
public Iterable<? extends CompilationUnitTree> parse() throws IOException {
try {
prepareCompiler();
List<JCCompilationUnit> units = compiler.parseFiles(fileObjects);
for (JCCompilationUnit unit : units) {
JavaFileObject file = unit.getSourceFile();
if (notYetEntered.containsKey(file)) notYetEntered.put(file, unit);
}
return units;
} finally {
parsed = true;
if (compiler != null && compiler.log != null) compiler.log.flush();
}
}
@NotNull
public static Map<String, String> parseDirectives(String expectedText) {
Map<String, String> directives = Maps.newHashMap();
Matcher directiveMatcher = DIRECTIVE_PATTERN.matcher(expectedText);
int start = 0;
while (directiveMatcher.find()) {
if (directiveMatcher.start() != start) {
Assert.fail(
"Directives should only occur at the beginning of a file: " + directiveMatcher.group());
}
String name = directiveMatcher.group(1);
String value = directiveMatcher.group(3);
String oldValue = directives.put(name, value);
Assert.assertNull(
"Directive overwritten: " + name + " old value: " + oldValue + " new value: " + value,
oldValue);
start = directiveMatcher.end() + 1;
}
return directives;
}
@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
for (Element annotatedElt : roundEnv.getElementsAnnotatedWith(CodeTranslate.class)) {
ExecutableElement methodElt = (ExecutableElement) annotatedElt;
TypeElement typeElt = (TypeElement) methodElt.getEnclosingElement();
if (typeElt.getQualifiedName().toString().equals(fqn)
&& methodElt.getSimpleName().toString().equals(method)) {
for (Lang lang : langs) {
Result result;
try {
String translation = translator.translate(methodElt, lang);
result = new Result.Source(translation);
} catch (Exception e) {
result = new Result.Failure(e);
}
results.put(lang, result);
}
}
}
return false;
}
private void prepareCompiler() throws IOException {
if (used.getAndSet(true)) {
if (compiler == null) throw new IllegalStateException();
} else {
initContext();
compilerMain.setOptions(Options.instance(context));
compilerMain.filenames = new LinkedHashSet<File>();
Collection<File> filenames = compilerMain.processArgs(CommandLine.parse(args), classNames);
if (!filenames.isEmpty())
throw new IllegalArgumentException("Malformed arguments " + toString(filenames, " "));
compiler = JavaCompiler.instance(context);
compiler.keepComments = true;
compiler.genEndPos = true;
// NOTE: this value will be updated after annotation processing
compiler.initProcessAnnotations(processors);
notYetEntered = new HashMap<JavaFileObject, JCCompilationUnit>();
for (JavaFileObject file : fileObjects) notYetEntered.put(file, null);
genList = new ListBuffer<Env<AttrContext>>();
// endContext will be called when all classes have been generated
// TODO: should handle the case after each phase if errors have occurred
args = null;
classNames = null;
}
}