void test(String[] opts, String className) throws Exception {
count++;
System.err.println("Test " + count + " " + Arrays.asList(opts) + " " + className);
Path testSrcDir = Paths.get(System.getProperty("test.src"));
Path testClassesDir = Paths.get(System.getProperty("test.classes"));
Path classes = Paths.get("classes." + count);
classes.createDirectory();
Context ctx = new Context();
PathFileManager fm = new JavacPathFileManager(ctx, true, null);
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
List<String> options = new ArrayList<String>();
options.addAll(Arrays.asList(opts));
options.addAll(Arrays.asList("-verbose", "-XDverboseCompilePolicy", "-d", classes.toString()));
Iterable<? extends JavaFileObject> compilationUnits =
fm.getJavaFileObjects(testSrcDir.resolve(className + ".java"));
StringWriter sw = new StringWriter();
PrintWriter out = new PrintWriter(sw);
JavaCompiler.CompilationTask t =
compiler.getTask(out, fm, null, options, null, compilationUnits);
boolean ok = t.call();
System.err.println(sw.toString());
if (!ok) {
throw new Exception("compilation failed");
}
File expect = new File("classes." + count + "/" + className + ".class");
if (!expect.exists()) throw new Exception("expected file not found: " + expect);
long expectedSize = new File(testClassesDir.toString(), className + ".class").length();
long actualSize = expect.length();
if (expectedSize != actualSize)
throw new Exception("wrong size found: " + actualSize + "; expected: " + expectedSize);
}
public Compiler(Flags... flags) {
setFlags(flags);
this.tempDirs = new ArrayList<>();
this.postprocessors = new ArrayList<>();
this.systemJavaCompiler = ToolProvider.getSystemJavaCompiler();
this.fm = systemJavaCompiler.getStandardFileManager(null, null, null);
}
public TestInput(
Iterable<? extends JavaFileObject> files, Iterable<String> processors, String[] options) {
this.compiler = ToolProvider.getSystemJavaCompiler();
this.fileManager = compiler.getStandardFileManager(null, null, null);
this.files = files;
this.processors = processors;
this.options = new LinkedList<String>();
String classpath = System.getProperty("tests.classpath", "tests" + File.separator + "build");
String globalclasspath = System.getProperty("java.class.path", "");
this.options.add("-Xmaxerrs");
this.options.add("9999");
this.options.add("-g");
this.options.add("-d");
this.options.add(OUTDIR);
this.options.add("-classpath");
this.options.add(
"build"
+ File.pathSeparator
+ "junit.jar"
+ File.pathSeparator
+ classpath
+ File.pathSeparator
+ globalclasspath);
this.options.addAll(Arrays.asList(options));
}
public static void main(String... args) {
try {
JavaCompiler javac = javax.tools.ToolProvider.getSystemJavaCompiler();
DiagnosticListener<JavaFileObject> dl =
new DiagnosticListener<JavaFileObject>() {
public void report(Diagnostic<? extends JavaFileObject> message) {
throw new NullPointerException(SILLY_BILLY);
}
};
StandardJavaFileManager fm = javac.getStandardFileManager(dl, null, null);
Iterable<? extends JavaFileObject> files =
fm.getJavaFileObjectsFromStrings(Arrays.asList("badfile.java"));
javac.getTask(null, fm, dl, null, null, files).call();
} catch (RuntimeException e) {
Throwable cause = e.getCause();
if (cause instanceof NullPointerException && cause.getMessage().equals(SILLY_BILLY)) return;
throw new Error("unexpected exception caught: " + e);
} catch (Throwable t) {
throw new Error("unexpected exception caught: " + t);
}
throw new Error("no exception caught");
}
// Writes the program to a source file, compiles it, and runs it.
private void compileAndRun(String fileName, String code) {
// Exceptions here can pick and choose what font to use, as needed.
// Exceptions thrown by the program, that cause the Playground to be unstable, should be in
// blue.
println("Deleting old temp files...", progErr);
new File(fileName + ".java").delete();
new File(fileName + ".class").delete();
println("Creating source file...", progErr);
file = new File(fileName + ".java");
println("Writing code to source file...", progErr);
try {
new FileWriter(file).append(code).close();
} catch (IOException i) {
println("Had an IO Exception when trying to write the code. Stack trace:", error);
i.printStackTrace();
return; // Exit on error
}
println("Compiling code...", progErr);
// This should only ever be called if the JDK isn't installed. How you'd get here, I don't
// know.
if (compiler == null) {
println("Fatal Error: JDK not installed. Go to java.sun.com and install.", error);
return;
}
// Tries to compile. Success code is 0, so if something goes wrong, do stuff.
int result =
compiler.run(
null,
null,
null,
file
.getAbsolutePath()); // Possibly add a new outputstream to parse through the
// compiler errors
if (result != 0) {
displayLog();
println("Failed to compile.", error);
return; // Return on error
}
println("Code compiled with 0 errors.", progErr);
println("Attempting to run code...", progErr);
run(fileName);
}
public TestRun run() {
StringWriter output = new StringWriter();
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
if (debug) {
System.out.printf(
"TestInput.run:%n options: %s%n processors: %s%n files: %s%n",
this.options, this.processors, this.files);
}
JavaCompiler.CompilationTask task =
compiler.getTask(
output, fileManager, diagnostics, this.options, this.processors, this.files);
/*
* In Eclipse, std out and std err for multiple tests appear as one
* long stream. When selecting a specific failed test, one sees the
* expected/unexpected messages, but not the std out/err messages from
* that particular test. Can we improve this somehow?
*/
Boolean result = task.call();
return new TestRun(result, output.toString(), diagnostics.getDiagnostics());
}
/**
* Wow! much faster than compiling outside of VM. Finicky though. Had rules called r and modulo.
* Wouldn't compile til I changed to 'a'.
*/
protected boolean compile(String fileName) {
String classpathOption = "-classpath";
String[] args =
new String[] {
"javac",
"-d",
tmpdir,
classpathOption,
tmpdir + pathSep + CLASSPATH,
tmpdir + "/" + fileName
};
String cmdLine =
"javac"
+ " -d "
+ tmpdir
+ " "
+ classpathOption
+ " "
+ tmpdir
+ pathSep
+ CLASSPATH
+ " "
+ fileName;
// System.out.println("compile: "+cmdLine);
File f = new File(tmpdir, fileName);
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
// DiagnosticCollector<JavaFileObject> diagnostics =
// new DiagnosticCollector<JavaFileObject>();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
Iterable<? extends JavaFileObject> compilationUnits =
fileManager.getJavaFileObjectsFromFiles(Arrays.asList(f));
Iterable<String> compileOptions =
Arrays.asList(new String[] {"-d", tmpdir, "-cp", tmpdir + pathSep + CLASSPATH});
JavaCompiler.CompilationTask task =
compiler.getTask(null, fileManager, null, compileOptions, null, compilationUnits);
boolean ok = task.call();
try {
fileManager.close();
} catch (IOException ioe) {
ioe.printStackTrace(System.err);
}
// List<String> errors = new ArrayList<String>();
// for (Diagnostic diagnostic : diagnostics.getDiagnostics()) {
// errors.add(
// String.valueOf(diagnostic.getLineNumber())+
// ": " + diagnostic.getMessage(null));
// }
// if ( errors.size()>0 ) {
// System.err.println("compile stderr from: "+cmdLine);
// System.err.println(errors);
// return false;
// }
return ok;
/*
File outputDir = new File(tmpdir);
try {
Process process =
Runtime.getRuntime().exec(args, null, outputDir);
StreamVacuum stdout = new StreamVacuum(process.getInputStream());
StreamVacuum stderr = new StreamVacuum(process.getErrorStream());
stdout.start();
stderr.start();
process.waitFor();
stdout.join();
stderr.join();
if ( stdout.toString().length()>0 ) {
System.err.println("compile stdout from: "+cmdLine);
System.err.println(stdout);
}
if ( stderr.toString().length()>0 ) {
System.err.println("compile stderr from: "+cmdLine);
System.err.println(stderr);
}
int ret = process.exitValue();
return ret==0;
}
catch (Exception e) {
System.err.println("can't exec compilation");
e.printStackTrace(System.err);
return false;
}
*/
}