public static String scriptToClass(String name) {
if (name.equals("-e")) {
return "DashE";
} else {
return JavaNameMangler.mangledFilenameForStartupClasspath(name);
}
}
public JITClassGenerator(
String className,
String methodName,
String key,
Ruby ruby,
DefaultMethod method,
JITCounts counts) {
this.packageName = JITCompiler.RUBY_JIT_PREFIX;
if (RubyInstanceConfig.JAVA_VERSION == Opcodes.V1_7) {
// recent Java 7 seems to have a bug that leaks definitions across cousin classloaders
// so we force the class name to be unique to this runtime
digestString = getHashForString(key) + Math.abs(ruby.hashCode());
} else {
digestString = getHashForString(key);
}
this.className =
packageName
+ "/"
+ className.replace('.', '/')
+ CLASS_METHOD_DELIMITER
+ JavaNameMangler.mangleMethodName(methodName)
+ "_"
+ digestString;
this.name = this.className.replaceAll("/", ".");
this.bodyNode = method.getBodyNode();
this.argsNode = method.getArgsNode();
this.methodName = methodName;
filename = calculateFilename(argsNode, bodyNode);
staticScope = method.getStaticScope();
asmCompiler = new StandardASMCompiler(this.className, filename);
this.ruby = ruby;
this.counts = counts;
}
public static CallSite bootstrap(MethodHandles.Lookup lookup, String name, MethodType type) {
String[] nameComponents = name.split(":");
String methodName = JavaNameMangler.demangleMethodName(nameComponents[1]);
CallType callType =
nameComponents[0].equals("callFunctional") ? CallType.FUNCTIONAL : CallType.VARIABLE;
InvokeSite site = new SelfInvokeSite(type, methodName, callType);
return InvokeSite.bootstrap(site, lookup);
}
public static CallSite bootstrap(
MethodHandles.Lookup lookup, String name, MethodType type, String splatmapString) {
String[] targetAndMethod = name.split(":");
String superName = JavaNameMangler.demangleMethodName(targetAndMethod[1]);
InvokeSite site;
switch (targetAndMethod[0]) {
case "invokeInstanceSuper":
site = new InstanceSuperInvokeSite(type, superName, splatmapString);
break;
case "invokeClassSuper":
site = new ClassSuperInvokeSite(type, superName, splatmapString);
break;
default:
throw new RuntimeException("invalid super call: " + name);
}
return InvokeSite.bootstrap(site, lookup);
}
private RubyStackTraceElement[] transformBacktrace(Map<String, String> boundMethods) {
List<RubyStackTraceElement> trace = new ArrayList<RubyStackTraceElement>(javaTrace.length);
// used for duplicating the previous Ruby frame when masking native calls
boolean dupFrame = false;
String dupFrameName = null;
// a running index into the Ruby backtrace stack, incremented for each
// interpreter frame we encounter in the Java backtrace.
int rubyFrameIndex = rubyTrace == null ? -1 : rubyTrace.length - 1;
// no Java trace, can't generate hybrid trace
// TODO: Perhaps just generate the interpreter trace? Is this path ever hit?
if (javaTrace == null) {
return null;
}
for (int i = 0; i < javaTrace.length; i++) {
StackTraceElement element = javaTrace[i];
if (element.getFileName() != null
&& (element.getFileName().endsWith(".rb")
|| element.getFileName().equals("-e")
|| element.getClassName().startsWith(JITCompiler.RUBY_JIT_PREFIX + ".")
|| element.getMethodName().contains("$RUBY$")
|| element.getMethodName().contains("__file__"))) {
if (element.getLineNumber() == -1) {
continue;
}
String methodName = element.getMethodName();
String className = element.getClassName();
// FIXME: Formalize jitted method structure so this isn't quite as hacky
if (className.startsWith(JITCompiler.RUBY_JIT_PREFIX)) {
// pull out and demangle the method name
methodName =
className.substring(
JITCompiler.RUBY_JIT_PREFIX.length() + 1, className.lastIndexOf("_"));
methodName = JavaNameMangler.demangleMethodName(methodName);
RubyStackTraceElement rubyElement =
new RubyStackTraceElement(
className, methodName, element.getFileName(), element.getLineNumber(), false);
// dup if masking native and previous frame was native
if (maskNative && dupFrame) {
dupFrame = false;
trace.add(
new RubyStackTraceElement(
rubyElement.getClassName(),
dupFrameName,
rubyElement.getFileName(),
rubyElement.getLineNumber(),
rubyElement.isBinding()));
}
trace.add(rubyElement);
// if it's a synthetic call, use it but gobble up parent calls
// TODO: need to formalize this better
if (element.getMethodName().contains("$RUBY$SYNTHETIC")) {
// gobble up at least one parent, and keep going if there's more synthetic frames
while (element.getMethodName().indexOf("$RUBY$SYNTHETIC") != -1
&& ++i < javaTrace.length) {
element = javaTrace[i];
}
}
continue;
}
int RUBYindex = methodName.indexOf("$RUBY$");
if (RUBYindex >= 0) {
// if it's a synthetic call, use it but gobble up parent calls
// TODO: need to formalize this better
methodName = methodName.substring(RUBYindex);
if (methodName.startsWith("$RUBY$SYNTHETIC")) {
methodName = methodName.substring("$RUBY$SYNTHETIC".length());
methodName = JavaNameMangler.demangleMethodName(methodName);
if (methodName.equals("__file__")) {
methodName = "(root)";
}
RubyStackTraceElement rubyElement =
new RubyStackTraceElement(
className, methodName, element.getFileName(), element.getLineNumber(), false);
// dup if masking native and previous frame was native
if (maskNative && dupFrame) {
dupFrame = false;
trace.add(
new RubyStackTraceElement(
rubyElement.getClassName(),
dupFrameName,
rubyElement.getFileName(),
rubyElement.getLineNumber(),
rubyElement.isBinding()));
}
trace.add(rubyElement);
// gobble up at least one parent, and keep going if there's more synthetic frames
while (element.getMethodName().indexOf("$RUBY$SYNTHETIC") != -1
&& ++i < javaTrace.length) {
element = javaTrace[i];
}
continue;
}
methodName = methodName.substring("$RUBY$".length());
methodName = JavaNameMangler.demangleMethodName(methodName);
RubyStackTraceElement rubyElement =
new RubyStackTraceElement(
className, methodName, element.getFileName(), element.getLineNumber(), false);
// dup if masking native and previous frame was native
if (maskNative && dupFrame) {
dupFrame = false;
trace.add(
new RubyStackTraceElement(
rubyElement.getClassName(),
dupFrameName,
rubyElement.getFileName(),
rubyElement.getLineNumber(),
rubyElement.isBinding()));
}
trace.add(rubyElement);
continue;
}
if (methodName.equals("__file__")
&& !element.getFileName().endsWith("AbstractScript.java")) {
methodName = "(root)";
RubyStackTraceElement rubyElement =
new RubyStackTraceElement(
className, methodName, element.getFileName(), element.getLineNumber(), false);
// dup if masking native and previous frame was native
if (maskNative && dupFrame) {
dupFrame = false;
trace.add(
new RubyStackTraceElement(
rubyElement.getClassName(),
dupFrameName,
rubyElement.getFileName(),
rubyElement.getLineNumber(),
rubyElement.isBinding()));
}
trace.add(rubyElement);
continue;
}
}
String dotClassMethod = element.getClassName() + "." + element.getMethodName();
String rubyName = null;
if (fullTrace || (rubyName = boundMethods.get(dotClassMethod)) != null) {
String filename = element.getFileName();
// stick package on the beginning
if (filename == null) {
filename = element.getClassName().replaceAll("\\.", "/");
} else {
int lastDot = element.getClassName().lastIndexOf('.');
if (lastDot != -1) {
filename =
element.getClassName().substring(0, lastDot + 1).replaceAll("\\.", "/") + filename;
}
}
if (maskNative) {
// for Kernel#caller, don't show .java frames in the trace
dupFrame = true;
dupFrameName = rubyName;
continue;
} else {
if (rubyName == null) rubyName = element.getMethodName();
trace.add(
new RubyStackTraceElement(
element.getClassName(), rubyName, filename, element.getLineNumber(), false));
}
// if not full trace, we're done; don't check interpreted marker
if (!fullTrace) {
continue;
}
}
String classMethod = element.getClassName() + "." + element.getMethodName();
FrameType frameType = FrameType.INTERPRETED_FRAMES.get(classMethod);
if (frameType != null && rubyFrameIndex >= 0) {
// Frame matches one of our markers for "interpreted" calls
BacktraceElement rubyFrame = rubyTrace[rubyFrameIndex];
RubyStackTraceElement rubyElement =
new RubyStackTraceElement(
rubyFrame.klass, rubyFrame.method, rubyFrame.filename, rubyFrame.line + 1, false);
// dup if masking native and previous frame was native
if (maskNative && dupFrame) {
dupFrame = false;
trace.add(
new RubyStackTraceElement(
rubyElement.getClassName(),
dupFrameName,
rubyElement.getFileName(),
rubyElement.getLineNumber(),
rubyElement.isBinding()));
}
trace.add(rubyElement);
rubyFrameIndex--;
continue;
}
}
RubyStackTraceElement[] rubyStackTrace = new RubyStackTraceElement[trace.size()];
return (RubyStackTraceElement[]) trace.toArray(rubyStackTrace);
}