private IRubyObject handleReturnJump(
ThreadContext context, JumpException.ReturnJump rj, int jumpTarget) {
int target = rj.getTarget();
Ruby runtime = context.getRuntime();
// lambda always just returns the value
if (target == jumpTarget && isLambda()) {
return (IRubyObject) rj.getValue();
}
// returns can't propagate out of threads
if (isThread()) {
throw runtime.newThreadError("return can't jump across threads");
}
// If the block-receiving method is not still active and the original
// enclosing frame is no longer on the stack, it's a bad return.
// FIXME: this is not very efficient for cases where it won't error
if (target == jumpTarget && !context.isJumpTargetAlive(target, 1)) {
throw runtime.newLocalJumpError(
RubyLocalJumpError.Reason.RETURN, (IRubyObject) rj.getValue(), "unexpected return");
}
// otherwise, let it propagate
throw rj;
}
public static IRubyObject INTERPRET_METHOD(
ThreadContext context,
CFG cfg,
InterpreterContext interp,
String name,
RubyModule implClass,
boolean isTraceable) {
Ruby runtime = interp.getRuntime();
boolean syntheticMethod = name == null || name.equals("");
try {
String className = implClass.getName();
if (!syntheticMethod)
ThreadContext.pushBacktrace(context, className, name, context.getFile(), context.getLine());
if (isTraceable) methodPreTrace(runtime, context, name, implClass);
return interpret(context, cfg, interp);
} finally {
if (isTraceable) {
try {
methodPostTrace(runtime, context, name, implClass);
} finally {
if (!syntheticMethod) ThreadContext.popBacktrace(context);
}
} else {
if (!syntheticMethod) ThreadContext.popBacktrace(context);
}
}
}
@JRubyMethod(name = "initialize", frame = true, visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context, Block procBlock) {
if (!procBlock.isGiven()) {
throw getRuntime().newArgumentError("tried to create Proc object without a block");
}
if (isLambda() && procBlock == null) {
// TODO: warn "tried to create Proc object without a block"
}
block = procBlock.cloneBlock();
if (isThread()) {
// modify the block with a new backref/lastline-grabbing scope
StaticScope oldScope = block.getBody().getStaticScope();
StaticScope newScope =
new BlockStaticScope(oldScope.getEnclosingScope(), oldScope.getVariables());
newScope.setBackrefLastlineScope(true);
newScope.setPreviousCRefScope(oldScope.getPreviousCRefScope());
newScope.setModule(oldScope.getModule());
block.getBody().setStaticScope(newScope);
}
block.type = type;
block.setProcObject(this);
file = context.getFile();
line = context.getLine();
return this;
}
@JRubyMethod(
name = {"call", "[]", "yield"},
rest = true,
frame = true,
compat = CompatVersion.RUBY1_9)
public IRubyObject call19(ThreadContext context, IRubyObject[] args, Block block) {
if (isLambda()) {
this.block.arity().checkArity(context.getRuntime(), args.length);
}
if (isProc()) {
List<IRubyObject> list = new ArrayList<IRubyObject>(Arrays.asList(args));
int required = this.block.arity().required();
if (this.block.arity().isFixed()) {
if (required > args.length) {
for (int i = args.length; i < required; i++) {
list.add(context.getRuntime().getNil());
}
args = list.toArray(args);
} else if (required < args.length) {
args = list.subList(0, required).toArray(args);
}
}
}
return call(context, args, null, block);
}
public static IRubyObject INTERPRET_METHOD(
ThreadContext context,
InterpretedIRMethod irMethod,
IRubyObject self,
String name,
IRubyObject[] args,
Block block,
Block.Type blockType,
boolean isTraceable) {
Ruby runtime = context.runtime;
IRScope scope = irMethod.getIRMethod();
RubyModule implClass = irMethod.getImplementationClass();
Visibility viz = irMethod.getVisibility();
boolean syntheticMethod = name == null || name.equals("");
try {
if (!syntheticMethod)
ThreadContext.pushBacktrace(context, name, scope.getFileName(), context.getLine());
if (isTraceable) methodPreTrace(runtime, context, name, implClass);
return interpret(context, self, scope, viz, implClass, args, block, blockType);
} finally {
if (isTraceable) {
try {
methodPostTrace(runtime, context, name, implClass);
} finally {
if (!syntheticMethod) ThreadContext.popBacktrace(context);
}
} else {
if (!syntheticMethod) ThreadContext.popBacktrace(context);
}
}
}
@Override
public Object interpret(
ThreadContext context,
DynamicScope currDynScope,
IRubyObject self,
Object[] temp,
Block aBlock) {
// FIXME: Receiver is not being used...should we be retrieving it?
IRubyObject receiver = (IRubyObject) getReceiver().retrieve(context, self, currDynScope, temp);
IRubyObject[] args = prepareArguments(context, self, getCallArgs(), currDynScope, temp);
Block block = prepareBlock(context, self, currDynScope, temp);
RubyModule klazz = context.getFrameKlazz();
// SSS FIXME: Even though we may know the method name in some instances,
// we are not making use of it here. It is cleaner in the sense of not
// relying on implicit information whose data flow doesn't show up in the IR.
String methodName = context.getCurrentFrame().getName(); // methAddr.getName();
checkSuperDisabledOrOutOfMethod(context, klazz, methodName);
RubyClass superClass =
RuntimeHelpers.findImplementerIfNecessary(self.getMetaClass(), klazz).getSuperClass();
DynamicMethod method =
superClass != null ? superClass.searchMethod(methodName) : UndefinedMethod.INSTANCE;
Object rVal =
method.isUndefined()
? RuntimeHelpers.callMethodMissing(
context, self, method.getVisibility(), methodName, CallType.SUPER, args, block)
: method.call(context, self, superClass, methodName, args, block);
return hasUnusedResult() ? null : rVal;
}
@JRubyMethod(
name = {"create_invoker", "createInvoker"},
required = 5)
public IRubyObject createInvoker(ThreadContext context, IRubyObject[] args) {
RubyArray paramTypes = (RubyArray) args[3];
NativeParam[] nativeParamTypes = new NativeParam[paramTypes.size()];
for (int i = 0; i < paramTypes.size(); ++i) {
IRubyObject obj = (IRubyObject) paramTypes.entry(i);
if (obj instanceof NativeParam) {
nativeParamTypes[i] = (NativeParam) obj;
} else if (obj instanceof RubyInteger) {
nativeParamTypes[i] = NativeType.valueOf(Util.int32Value(obj));
} else {
context.getRuntime().newArgumentError("Invalid parameter type");
}
}
try {
return createInvoker(
context.getRuntime(),
args[0].isNil() ? null : args[0].toString(),
args[1].toString(),
NativeType.valueOf(Util.int32Value(args[2])),
nativeParamTypes,
args[4].toString());
} catch (UnsatisfiedLinkError ex) {
return context.getRuntime().getNil();
}
}
@Override
public IRubyObject interpret(
Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
// Serialization killed our dynamic scope. We can just create an empty one
// since serialization cannot serialize an eval (which is the only thing
// which is capable of having a non-empty dynamic scope).
if (scope == null) {
scope = DynamicScope.newDynamicScope(staticScope);
}
StaticScope theStaticScope = scope.getStaticScope();
// Each root node has a top-level scope that we need to push
context.preScopedBody(scope);
if (theStaticScope.getModule() == null) {
theStaticScope.setModule(runtime.getObject());
}
try {
return bodyNode.interpret(runtime, context, self, aBlock);
} finally {
context.postScopedBody();
}
}
/** do_coerce */
protected final RubyArray doCoerce(ThreadContext context, IRubyObject other, boolean err) {
if (!other.respondsTo("coerce")) {
if (err) {
coerceRescue(context, other);
}
return null;
}
final Ruby runtime = context.runtime;
final IRubyObject $ex = context.getErrorInfo();
final IRubyObject result;
try {
result = coerceBody(context, other);
} catch (RaiseException e) { // e.g. NoMethodError: undefined method `coerce'
if (e.getException().kind_of_p(context, runtime.getStandardError()).isTrue()) {
context.setErrorInfo($ex); // restore $!
RubyWarnings warnings = context.runtime.getWarnings();
warnings.warn("Numerical comparison operators will no more rescue exceptions of #coerce");
warnings.warn("in the next release. Return nil in #coerce if the coercion is impossible.");
if (err) {
coerceFailed(context, other);
}
return null;
} else {
throw e;
}
}
return coerceResult(runtime, result, err);
}
public static IRubyObject INTERPRET_METHOD(
Ruby runtime,
ThreadContext context,
String file,
int line,
RubyModule implClass,
Node node,
String name,
IRubyObject self,
Block block,
boolean isTraceable) {
try {
ThreadContext.pushBacktrace(context, name, file, line);
if (isTraceable) methodPreTrace(runtime, context, name, implClass);
return node.interpret(runtime, context, self, block);
} finally {
if (isTraceable) {
try {
methodPostTrace(runtime, context, name, implClass);
} finally {
ThreadContext.popBacktrace(context);
}
} else {
ThreadContext.popBacktrace(context);
}
}
}
@JRubyMethod(name = "root=")
public IRubyObject root_set(ThreadContext context, IRubyObject newRoot_) {
// in case of document fragment, temporary root node should be deleted.
// Java can't have a root whose value is null. Instead of setting null,
// the method sets user data so that other methods are able to know the root
// should be nil.
if (newRoot_ instanceof RubyNil) {
getDocument().getDocumentElement().setUserData(NokogiriHelpers.VALID_ROOT_NODE, false, null);
return newRoot_;
}
XmlNode newRoot = asXmlNode(context, newRoot_);
IRubyObject root = root(context);
if (root.isNil()) {
Node newRootNode;
if (getDocument() == newRoot.getOwnerDocument()) {
newRootNode = newRoot.node;
} else {
// must copy otherwise newRoot may exist in two places
// with different owner document.
newRootNode = getDocument().importNode(newRoot.node, true);
}
add_child_node(context, getCachedNodeOrCreate(context.getRuntime(), newRootNode));
} else {
Node rootNode = asXmlNode(context, root).node;
((XmlNode) getCachedNodeOrCreate(context.getRuntime(), rootNode))
.replace_node(context, newRoot);
}
return newRoot;
}
public static void main(String[] args) {
// Ensure we're not running on GCJ, since it's not supported and leads to weird errors
if (Platform.IS_GCJ) {
System.err.println("Fatal: GCJ (GNU Compiler for Java) is not supported by JRuby.");
System.exit(1);
}
Main main = new Main();
try {
int status = main.run(args);
if (status != 0) {
System.exit(status);
}
} catch (RaiseException re) {
throw re;
} catch (Throwable t) {
// print out as a nice Ruby backtrace
System.err.println(ThreadContext.createRawBacktraceStringFromThrowable(t));
while ((t = t.getCause()) != null) {
System.err.println("Caused by:");
System.err.println(ThreadContext.createRawBacktraceStringFromThrowable(t));
}
System.exit(1);
}
}
@Override
public Object interpret(
ThreadContext context,
DynamicScope currDynScope,
IRubyObject self,
Object[] temp,
Block block) {
// SSS FIXME: This is ugly and needs fixing. Is there another way of capturing this info?
RubyModule containerModule =
(candidateScope == null) ? null : candidateScope.getStaticScope().getModule();
if (containerModule == null)
containerModule = ASTInterpreter.getClassVariableBase(context, context.getRuntime());
if (containerModule == null && object != null) {
IRubyObject arg = (IRubyObject) object.retrieve(context, self, currDynScope, temp);
// SSS: What is the right thing to do here?
containerModule =
arg
.getMetaClass(); // (arg instanceof RubyClass) ? ((RubyClass)arg).getRealClass() :
// arg.getType();
}
if (containerModule == null)
throw context.getRuntime().newTypeError("no class/module to define class variable");
return containerModule;
}
/**
* This is the command-line entry point for JRuby, and should ONLY be used by Java when starting
* up JRuby from a command-line. Use other mechanisms when embedding JRuby into another
* application.
*
* @param args command-line args, provided by the JVM.
*/
public static void main(String[] args) {
doGCJCheck();
Main main;
if (DripMain.DRIP_RUNTIME != null) {
main = new Main(DripMain.DRIP_CONFIG, true);
} else {
main = new Main(true);
}
try {
Status status = main.run(args);
if (status.isExit()) {
System.exit(status.getStatus());
}
} catch (RaiseException rj) {
System.exit(handleRaiseException(rj));
} catch (Throwable t) {
// print out as a nice Ruby backtrace
System.err.println(ThreadContext.createRawBacktraceStringFromThrowable(t));
while ((t = t.getCause()) != null) {
System.err.println("Caused by:");
System.err.println(ThreadContext.createRawBacktraceStringFromThrowable(t));
}
System.exit(1);
}
}
@Override
public IRubyObject interpret(
Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
Block block =
SharedScopeBlock.newInterpretedSharedScopeClosure(
context, this, context.getCurrentScope(), self);
try {
while (true) {
try {
String savedFile = context.getFile();
int savedLine = context.getLine();
IRubyObject recv = null;
try {
recv = iterNode.interpret(runtime, context, self, aBlock);
} finally {
context.setFileAndLine(savedFile, savedLine);
}
return callAdapter.call(context, self, recv, block);
} catch (JumpException.RetryJump rj) {
// do nothing, allow loop to retry
}
}
} catch (JumpException.BreakJump bj) {
return (IRubyObject) bj.getValue();
}
}
private ByteList doReceive(ThreadContext context, int length) {
Ruby runtime = context.runtime;
ByteBuffer buf = ByteBuffer.allocate(length);
try {
context.getThread().beforeBlockingCall();
int read = openFile.getMainStreamSafe().getDescriptor().read(buf);
if (read == 0) return null;
return new ByteList(buf.array(), 0, buf.position());
} catch (BadDescriptorException e) {
throw runtime.newIOError("bad descriptor");
} catch (IOException e) {
// All errors to sysread should be SystemCallErrors, but on a closed stream
// Ruby returns an IOError. Java throws same exception for all errors so
// we resort to this hack...
if ("Socket not open".equals(e.getMessage())) {
throw runtime.newIOError(e.getMessage());
}
throw runtime.newSystemCallError(e.getMessage());
} finally {
context.getThread().afterBlockingCall();
}
}
@JRubyMethod(
name = {
"basic_quote_characters",
"basic_quote_characters=",
"completer_quote_characters",
"completer_quote_characters=",
"completer_word_break_characters",
"completer_word_break_characters=",
"completion_append_character",
"completion_proc",
"emacs_editing_mode",
"emacs_editing_mode?",
"filename_quote_characters",
"filename_quote_characters=",
"vi_editing_mode",
"vi_editing_mode?",
"set_screen_size"
},
frame = true,
module = true,
visibility = Visibility.PRIVATE,
compat = CompatVersion.RUBY1_9)
public static IRubyObject unimplemented19(ThreadContext context, IRubyObject recv)
throws Exception {
Ruby runtime = context.getRuntime();
runtime.secure(4);
String err = context.getFrameName() + "() function is unimplemented on this machine";
throw runtime.newNotImplementedError(err);
}
@Override
public Label interpret(InterpreterContext interp) {
RubyModule clazz = (RubyModule) getArg().retrieve(interp);
String name = method.getName();
ThreadContext context = interp.getContext();
Visibility visibility = context.getCurrentVisibility();
if (name == "initialize"
|| name == "initialize_copy"
|| visibility == Visibility.MODULE_FUNCTION) {
visibility = Visibility.PRIVATE;
}
DynamicMethod newMethod = new InterpretedIRMethod(method, visibility, clazz);
clazz.addMethod(name, newMethod);
if (visibility == Visibility.MODULE_FUNCTION) {
clazz
.getSingletonClass()
.addMethod(
name, new WrapperMethod(clazz.getSingletonClass(), newMethod, Visibility.PUBLIC));
clazz.callMethod(context, "singleton_method_added", interp.getRuntime().fastNewSymbol(name));
}
// 'class << state.self' and 'class << obj' uses defn as opposed to defs
if (clazz.isSingleton()) {
((MetaClass) clazz)
.getAttached()
.callMethod(context, "singleton_method_added", interp.getRuntime().fastNewSymbol(name));
} else {
clazz.callMethod(context, "method_added", interp.getRuntime().fastNewSymbol(name));
}
return null;
}
/** match_post_match */
@JRubyMethod(name = "post_match")
public IRubyObject post_match(ThreadContext context) {
check();
if (begin == -1) return context.getRuntime().getNil();
return makeShared(context.getRuntime(), str, end, str.getByteList().length() - end)
.infectBy(this);
}
public void put(
ThreadContext context,
StructLayout.Storage cache,
Member m,
IRubyObject ptr,
IRubyObject value) {
if (value instanceof Pointer) {
m.getMemoryIO(ptr).putMemoryIO(m.offset, ((Pointer) value).getMemoryIO());
} else if (value instanceof Struct) {
MemoryIO mem = ((Struct) value).getMemoryIO();
if (!(mem instanceof DirectMemoryIO)) {
throw context
.getRuntime()
.newArgumentError("Struct memory not backed by a native pointer");
}
m.getMemoryIO(ptr).putMemoryIO(m.offset, mem);
} else if (value instanceof RubyInteger) {
m.getMemoryIO(ptr).putAddress(m.offset, Util.int64Value(ptr));
} else if (value.respondsTo("to_ptr")) {
IRubyObject addr = value.callMethod(context, "to_ptr");
if (addr instanceof Pointer) {
m.getMemoryIO(ptr).putMemoryIO(m.offset, ((Pointer) addr).getMemoryIO());
} else {
throw context.getRuntime().newArgumentError("Invalid pointer value");
}
} else if (value.isNil()) {
m.getMemoryIO(ptr).putAddress(m.offset, 0L);
} else {
throw context.getRuntime().newArgumentError("Invalid pointer value");
}
cache.putReference(m, value);
}
@JRubyMethod(required = 4)
public IRubyObject initialize(ThreadContext context, IRubyObject[] args) {
if (!(args[2] instanceof MappedType)) {
throw context
.getRuntime()
.newTypeError(
args[2],
context
.getRuntime()
.fastGetModule("FFI")
.fastGetClass("Type")
.fastGetClass("Mapped"));
}
if (!(args[3] instanceof Field)) {
throw context
.getRuntime()
.newTypeError(
args[3],
context
.getRuntime()
.fastGetModule("FFI")
.fastGetClass("StructLayout")
.fastGetClass("Field"));
}
init(
args[0],
args[2],
args[1],
new MappedFieldIO((MappedType) args[2], ((Field) args[3]).getFieldIO()));
return this;
}
protected void post(InterpreterContext ic, ThreadContext context) {
// update call stacks (pop: ..)
context.popFrame();
if (ic.popDynScope()) {
context.popScope();
}
}
protected Object interpretSuper(
ThreadContext context, IRubyObject self, IRubyObject[] args, Block block) {
// SSS FIXME: We should check in the current module (for instance methods) or the current
// module's meta class (for class methods)
//
// RubyModule currM = context.getCurrentScope().getStaticScope().getModule();
// RubyModule klazz = (isInstanceMethodSuper) ? currM : currM.getMetaClass();
//
// The question is how do we know what this 'super' ought to do?
// For 'super' that occurs in a method scope, this is easy to figure out.
// But, what about 'super' that occurs in block scope? How do we figure that out?
RubyModule klazz = context.getFrameKlazz();
// SSS FIXME: Even though we may know the method name in some instances,
// we are not making use of it here.
String methodName = context.getCurrentFrame().getName(); // methAddr.getName();
checkSuperDisabledOrOutOfMethod(context, klazz, methodName);
RubyClass superClass =
RuntimeHelpers.findImplementerIfNecessary(self.getMetaClass(), klazz).getSuperClass();
DynamicMethod method =
superClass != null ? superClass.searchMethod(methodName) : UndefinedMethod.INSTANCE;
Object rVal =
method.isUndefined()
? RuntimeHelpers.callMethodMissing(
context, self, method.getVisibility(), methodName, CallType.SUPER, args, block)
: method.call(context, self, superClass, methodName, args, block);
return hasUnusedResult() ? null : rVal;
}
private IRubyObject INTERPRET_METHOD(
ThreadContext context,
InterpreterContext ic,
RubyModule implClass,
IRubyObject self,
String name,
IRubyObject arg1,
IRubyObject arg2,
IRubyObject arg3,
Block block) {
try {
ThreadContext.pushBacktrace(context, name, ic.getFileName(), context.getLine());
if (ic.hasExplicitCallProtocol()) {
return ic.engine.interpret(
context, self, ic, implClass, name, arg1, arg2, arg3, block, null);
} else {
try {
this.pre(ic, context, self, name, block, implClass);
return ic.engine.interpret(
context, self, ic, implClass, name, arg1, arg2, arg3, block, null);
} finally {
this.post(ic, context);
}
}
} finally {
ThreadContext.popBacktrace(context);
}
}
public final void marshal(
ThreadContext context, InvocationBuffer buffer, IRubyObject parameter) {
if (!(parameter instanceof Struct)) {
throw context
.getRuntime()
.newTypeError(
"wrong argument type "
+ parameter.getMetaClass().getName()
+ " (expected instance of FFI::Struct)");
}
IRubyObject memory = ((Struct) parameter).getMemory();
if (!(memory instanceof AbstractMemory)) {
throw context
.getRuntime()
.newTypeError("wrong struct memory type " + memory.getMetaClass().getName());
}
MemoryIO io = ((AbstractMemory) memory).getMemoryIO();
if (io instanceof DirectMemoryIO) {
if (io.isNull()) {
throw context
.getRuntime()
.newRuntimeError("Cannot use a NULL pointer as a struct by value argument");
}
buffer.putStruct(((DirectMemoryIO) io).getAddress());
} else if (io instanceof ArrayMemoryIO) {
ArrayMemoryIO aio = (ArrayMemoryIO) io;
buffer.putStruct(aio.array(), aio.arrayOffset());
} else {
throw context.getRuntime().newRuntimeError("Invalid struct memory");
}
}
@Override
public Object retrieve(ThreadContext context, IRubyObject self, Object[] temp) {
BlockBody body = closure.getBlockBody();
closure.getStaticScope().determineModule();
Binding binding = context.currentBinding(self, context.getCurrentScope());
return new Block(body, binding);
}
/** int_succ */
@JRubyMethod(name = {"succ", "next"})
public IRubyObject succ(ThreadContext context) {
if (this instanceof RubyFixnum) {
return RubyFixnum.newFixnum(context.getRuntime(), getLongValue() + 1L);
} else {
return callMethod(context, "+", RubyFixnum.one(context.getRuntime()));
}
}
protected void pre(
ThreadContext context, String name, IRubyObject self, Block block, Ruby runtime) {
if (needsScope) {
context.preMethodFrameAndScope(getImplementationClass(), name, self, block, staticScope);
} else {
context.preMethodFrameAndDummyScope(getImplementationClass(), name, self, block, staticScope);
}
}
protected static RubyStackTraceElement[] getBacktrace(
ThreadContext context, boolean nativeException, boolean full) {
return ThreadContext.gatherHybridBacktrace(
context.getRuntime(),
context.createBacktrace2(0, nativeException),
Thread.currentThread().getStackTrace(),
full);
}
@JRubyMethod(name = "<=>", required = 1)
public IRubyObject op_cmp(ThreadContext context, IRubyObject other) {
if (other instanceof RubyTime) {
return context.getRuntime().newFixnum(cmp((RubyTime) other));
}
return context.getRuntime().getNil();
}