@Specialization
protected Object doInternal(VirtualFrame frame, RPromise x) {
if (builtinCallNode == null) {
RNode call = (RNode) x.getRep();
RNode operand = (RNode) RASTUtils.unwrap(call);
if (!(operand instanceof RCallNode)) {
errorProfile.enter();
throw RError.error(this, RError.Message.INVALID_INTERNAL);
}
RCallNode callNode = (RCallNode) operand;
RNode func = callNode.getFunctionNode();
String name = ((ReadVariableNode) func).getIdentifier();
RFunction function = RContext.lookupBuiltin(name);
if (function == null
|| function.isBuiltin() && function.getRBuiltin().getKind() != RBuiltinKind.INTERNAL) {
errorProfile.enter();
if (function == null && notImplemented(name)) {
throw RInternalError.unimplemented(".Internal " + name);
}
throw RError.error(this, RError.Message.NO_SUCH_INTERNAL, name);
}
// .Internal function is validated
CompilerDirectives.transferToInterpreterAndInvalidate();
builtinCallNode = insert(RCallNode.createInternalCall(callNode, function));
}
return builtinCallNode.execute(frame);
}
@Override
public Object getRelementImpl(int index) {
if (index == 0) {
String name = getBuiltin().getName();
assert name == name.intern();
return RDataFactory.createSymbol(name);
} else {
throw RInternalError.unimplemented();
}
}
private static boolean doEcho(PolyglotEngine vm) {
PolyglotEngine.Value echoValue = vm.eval(GET_ECHO);
Object echo = echoValue.get();
if (echo instanceof TruffleObject) {
RLogicalVector echoVec = echoValue.as(RLogicalVector.class);
return RRuntime.fromLogical(echoVec.getDataAt(0));
} else if (echo instanceof Byte) {
return RRuntime.fromLogical((Byte) echo);
} else {
throw RInternalError.shouldNotReachHere();
}
}
FileReadWriteConnection(FileRConnection base) throws IOException {
super(base);
OpenMode openMode = base.getOpenMode();
String rafMode = null;
switch (openMode.abstractOpenMode) {
case ReadWriteTrunc:
case ReadWriteTruncBinary:
rafMode = "rw";
break;
default:
throw RInternalError.shouldNotReachHere();
}
raf = new RandomAccessFile(base.path, rafMode);
inputStream = new RAFInputStream();
}
protected RuntimeException fallback(Object fobj) {
String name = null;
if (fobj instanceof RList) {
name = lookupName((RList) fobj);
name = name == UNKNOWN_EXTERNAL_BUILTIN ? null : name;
if (name != null && lookupBuiltin((RList) fobj) != null) {
/*
* if we reach this point, then the cache saw a different value for f. the lists
* that contain the information about native calls are never expected to change.
*/
throw RInternalError.shouldNotReachHere(
"fallback reached for " + getRBuiltin().name() + " " + name);
}
}
throw RError.nyi(
this,
getRBuiltin().name() + " specialization failure: " + (name == null ? "<unknown>" : name));
}
@Override
public long seek(long offset, SeekMode seekMode, SeekRWMode seekRWMode) throws IOException {
long position = inputStream.getChannel().position();
switch (seekMode) {
case ENQUIRE:
break;
case CURRENT:
if (offset != 0) {
inputStream.getChannel().position(position + offset);
}
break;
case START:
inputStream.getChannel().position(offset);
break;
case END:
throw RInternalError.unimplemented();
}
return position;
}
@SuppressWarnings("unused")
@Specialization
protected RNull resetCondHands(Object stack) {
// TODO
throw RInternalError.unimplemented();
}
public static void main(String[] args) {
doMain(args, null, true, System.in, System.out);
// never returns
throw RInternalError.shouldNotReachHere();
}
/**
* The read-eval-print loop, which can take input from a console, command line expression or a
* file. There are two ways the repl can terminate:
*
* <ol>
* <li>A {@code quit} command is executed successfully, which case the system exits from the
* {@link Quit} {@code .Internal} .
* <li>EOF on the input.
* </ol>
*
* In case 2, we must implicitly execute a {@code quit("default, 0L, TRUE} command before exiting.
* So,in either case, we never return.
*/
static int readEvalPrint(PolyglotEngine vm) {
int lastStatus = 0;
ContextInfo contextInfo = ContextInfo.getContextInfo(vm);
ConsoleHandler consoleHandler = contextInfo.getConsoleHandler();
try {
// console.println("initialize time: " + (System.currentTimeMillis() - start));
REPL:
for (; ; ) {
boolean doEcho = doEcho(vm);
consoleHandler.setPrompt(doEcho ? "> " : null);
try {
String input = consoleHandler.readLine();
if (input == null) {
throw new EOFException();
}
String trInput = input.trim();
if (trInput.equals("") || trInput.charAt(0) == '#') {
// nothing to parse
continue;
}
String continuePrompt = getContinuePrompt();
StringBuffer sb = new StringBuffer(input);
Source source = RSource.fromTextInternal(sb.toString(), RSource.Internal.SHELL_INPUT);
while (true) {
lastStatus = 0;
try {
try {
vm.eval(source);
// checked exceptions are wrapped in RuntimeExceptions
} catch (RuntimeException e) {
if (e.getCause() instanceof com.oracle.truffle.api.vm.IncompleteSourceException) {
throw e.getCause().getCause();
}
throw e;
}
} catch (IncompleteSourceException e) {
// read another line of input
consoleHandler.setPrompt(doEcho ? continuePrompt : null);
String additionalInput = consoleHandler.readLine();
if (additionalInput == null) {
throw new EOFException();
}
sb.append(additionalInput);
source = RSource.fromTextInternal(sb.toString(), RSource.Internal.SHELL_INPUT);
// The only continuation in the while loop
continue;
} catch (ParseException e) {
e.report(consoleHandler);
lastStatus = 1;
} catch (RError e) {
// drop through to continue REPL and remember last eval was an error
lastStatus = 1;
} catch (JumpToTopLevelException e) {
// drop through to continue REPL
} catch (DebugExitException e) {
throw (RuntimeException) e.getCause();
} catch (ExitException e) {
// usually from quit
int status = e.getStatus();
if (contextInfo.getParent() == null) {
vm.dispose();
Utils.systemExit(status);
} else {
return status;
}
} catch (Throwable e) {
RInternalError.reportErrorAndConsoleLog(e, consoleHandler, 0);
// We continue the repl even though the system may be broken
lastStatus = 1;
}
continue REPL;
}
} catch (UserInterruptException e) {
// interrupted by ctrl-c
}
}
} catch (JumpToTopLevelException | EOFException ex) {
// JumpToTopLevelException can happen if user profile invokes browser (unlikely but
// possible)
try {
vm.eval(QUIT_EOF);
} catch (JumpToTopLevelException e) {
Utils.systemExit(0);
} catch (ExitException e) {
// normal quit, but with exit code based on lastStatus
if (contextInfo.getParent() == null) {
Utils.systemExit(lastStatus);
} else {
return lastStatus;
}
} catch (Throwable e) {
throw RInternalError.shouldNotReachHere(e);
}
} finally {
vm.dispose();
}
return 0;
}
@Override
public final Object call(RArgsValuesAndNames args) {
throw RInternalError.unimplemented("unimplemented external builtin: " + name);
}
@Override
public byte[] readBinChars() throws IOException {
throw RInternalError.unimplemented();
}
@Override
public int readBin(ByteBuffer buffer) throws IOException {
throw RInternalError.unimplemented();
}
@Override
public String readChar(int nchars, boolean useBytes) throws IOException {
throw RInternalError.unimplemented();
}
@Override
public void writeChar(String s, int pad, String eos, boolean useBytes) throws IOException {
throw RInternalError.unimplemented();
}
@Override
public void writeString(String s, boolean nl) throws IOException {
throw RInternalError.unimplemented();
}
@Override
public OutputStream getOutputStream() throws IOException {
throw RInternalError.unimplemented();
}