test(new File(testSrcDir, arg));
}
}
void test(File test) throws Exception {
JavacTool tool1 = JavacTool.create();
StandardJavaFileManager fm = tool1.getStandardFileManager(null, null, null);
Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(test);
// parse test file into a tree, and write it out to a stringbuffer using Pretty
JavacTask t1 = tool1.getTask(null, fm, null, null, null, files);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
Iterable<? extends CompilationUnitTree> trees = t1.parse();
for (CompilationUnitTree tree: trees) {
new Pretty(pw, true).printExpr((JCTree) tree);
}
pw.close();
final String out = sw.toString();
System.err.println("generated code:\n" + out + "\n");
// verify the generated code is valid Java by compiling it
JavacTool tool2 = JavacTool.create();
JavaFileObject fo = new SimpleJavaFileObject(URI.create("output"), JavaFileObject.Kind.SOURCE) {
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return out;
}
};
JavacTask t2 = tool2.getTask(null, fm, null, null, null, Collections.singleton(fo));
boolean ok = t2.call();
if (!ok)
throw new Exception("compilation of generated code failed");
File expectedClass = new File(test.getName().replace(".java", ".class"));