зеркало из https://github.com/mozilla/pluotsorbet.git
Add missing file.
This commit is contained in:
Michael Bebenita
Родитель
3c14d13644
Коммит
f7505f9b0e
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@ -0,0 +1,197 @@
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module J2ME {
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import assert = Debug.assert;
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import unique = ArrayUtilities.unique;
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import Bytecodes = Bytecode.Bytecodes;
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import BytecodeStream = Bytecode.BytecodeStream;
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var yieldWriter = null; // stderrWriter;
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export var yieldCounter = new Metrics.Counter(true);
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export enum YieldReason {
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None = 0,
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Root = 1,
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Synchronized = 2,
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MonitorEnterExit = 3,
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Virtual = 4,
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Cycle = 5
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}
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/**
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* Root set of methods that can yield. Keep this up to date or else the compiler will not generate yield code
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* at the right spots.
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*/
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export var yieldMap = {
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"java/lang/Thread.sleep.(J)V": YieldReason.Root,
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"com/sun/cldc/isolate/Isolate.waitStatus.(I)V": YieldReason.Root,
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"com/sun/midp/links/LinkPortal.getLinkCount0.()I": YieldReason.Root,
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"com/sun/midp/links/Link.receive0.(Lcom/sun/midp/links/LinkMessage;Lcom/sun/midp/links/Link;)V": YieldReason.Root,
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"com/nokia/mid/impl/jms/core/Launcher.handleContent.(Ljava/lang/String;)V": YieldReason.Root,
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"com/sun/midp/util/isolate/InterIsolateMutex.lock0.(I)V": YieldReason.Root,
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"com/sun/midp/events/NativeEventMonitor.waitForNativeEvent.(Lcom/sun/midp/events/NativeEvent;)I": YieldReason.Root,
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"com/sun/midp/main/CommandState.exitInternal.(I)V": YieldReason.Root,
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"com/sun/midp/io/j2me/push/ConnectionRegistry.poll0.(J)I": YieldReason.Root,
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"com/sun/midp/rms/RecordStoreUtil.exists.(Ljava/lang/String;Ljava/lang/String;I)Z": YieldReason.Root,
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"com/sun/midp/rms/RecordStoreUtil.deleteFile.(Ljava/lang/String;Ljava/lang/String;I)V": YieldReason.Root,
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"com/sun/midp/rms/RecordStoreFile.openRecordStoreFile.(Ljava/lang/String;Ljava/lang/String;I)I": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.existsImpl.([B)Z": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.fileSizeImpl.([B)J": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.isDirectoryImpl.([B)Z": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.listImpl.([B[BZ)[[B": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.mkdirImpl.([B)I": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.newFileImpl.([B)I": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.deleteFileImpl.([B)Z": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.lastModifiedImpl.([B)J": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.renameImpl.([B[B)V": YieldReason.Root,
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"com/ibm/oti/connection/file/Connection.truncateImpl.([BJ)V": YieldReason.Root,
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"com/ibm/oti/connection/file/FCInputStream.openImpl.([B)I": YieldReason.Root,
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"com/ibm/oti/connection/file/FCOutputStream.openImpl.([B)I": YieldReason.Root,
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"com/ibm/oti/connection/file/FCOutputStream.openOffsetImpl.([BJ)I": YieldReason.Root,
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"com/sun/midp/io/j2me/storage/RandomAccessStream.open.(Ljava/lang/String;I)I": YieldReason.Root,
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"javax/microedition/lcdui/ImageDataFactory.createImmutableImageDecodeImage.(Ljavax/microedition/lcdui/ImageData;[BII)V": YieldReason.Root,
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"com/nokia/mid/ui/TextEditorThread.sleep.()V": YieldReason.Root,
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"com/nokia/mid/ui/VKVisibilityNotificationRunnable.sleepUntilVKVisibilityChange.()Z": YieldReason.Root,
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"org/mozilla/io/LocalMsgConnection.init.(Ljava/lang/String;)V": YieldReason.Root,
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"org/mozilla/io/LocalMsgConnection.receiveData.([B)I": YieldReason.Root,
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"com/sun/mmedia/PlayerImpl.nRealize.(ILjava/lang/String;)Z": YieldReason.Root,
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"com/sun/mmedia/DirectRecord.nPause.(I)I": YieldReason.Root,
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"com/sun/mmedia/DirectRecord.nStop.(I)I": YieldReason.Root,
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"com/sun/mmedia/DirectRecord.nClose.(I)I": YieldReason.Root,
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"com/sun/mmedia/DirectRecord.nStart.(I)I": YieldReason.Root,
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"com/sun/midp/io/j2me/socket/Protocol.open0.([BI)V": YieldReason.Root,
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"com/sun/midp/io/j2me/socket/Protocol.read0.([BII)I": YieldReason.Root,
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"com/sun/midp/io/j2me/socket/Protocol.write0.([BII)I": YieldReason.Root,
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"com/sun/midp/io/j2me/socket/Protocol.close0.()V": YieldReason.Root,
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"com/sun/midp/io/j2me/sms/Protocol.receive0.(IIILcom/sun/midp/io/j2me/sms/Protocol$SMSPacket;)I": YieldReason.Root,
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"com/sun/midp/io/j2me/sms/Protocol.send0.(IILjava/lang/String;II[B)I": YieldReason.Root,
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"com/sun/j2me/pim/PIMProxy.getNextItemDescription0.(I[I)Z": YieldReason.Root,
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"java/lang/Object.wait.(J)V": YieldReason.Root,
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"java/lang/Class.invoke_clinit.()V": YieldReason.Root,
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"java/lang/Class.newInstance.()Ljava/lang/Object;": YieldReason.Root,
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"java/lang/Thread.yield.()V": YieldReason.Root,
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"gnu/testlet/vm/NativeTest.throwExceptionAfterPause.()V": YieldReason.Root,
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"gnu/testlet/vm/NativeTest.returnAfterPause.()I": YieldReason.Root,
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"gnu/testlet/vm/NativeTest.dumbPipe.()Z": YieldReason.Root,
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"gnu/testlet/TestHarness.getNumDifferingPixels.(Ljava/lang/String;)I": YieldReason.Root,
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};
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export function isFinal(classInfo: ClassInfo): boolean {
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if (classInfo.isFinal) {
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return true;
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}
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// Only true if we've loaded all the classes.
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if (classInfo.subClasses.length === 0) {
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return true;
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}
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}
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export function gatherCallees(callees: MethodInfo [], classInfo: ClassInfo, methodInfo: MethodInfo) {
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var methods = classInfo.methods;
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for (var i = 0; i < methods.length; i++) {
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var method = methods[i];
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if (method.name === methodInfo.name && method.signature === methodInfo.signature) {
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callees.push(method);
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}
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}
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var subClasses = classInfo.subClasses;
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for (var i = 0; i < subClasses.length; i++) {
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var subClass = subClasses[i];
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gatherCallees(callees, subClass, methodInfo);
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}
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}
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export function isStaticallyBound(op: Bytecodes, methodInfo: MethodInfo): boolean {
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// INVOKESPECIAL and INVOKESTATIC are always statically bound.
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if (op === Bytecodes.INVOKESPECIAL || op === Bytecodes.INVOKESTATIC) {
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return true;
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}
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// INVOKEVIRTUAL is only statically bound if its class is final.
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if (op === Bytecodes.INVOKEVIRTUAL && isFinal(methodInfo.classInfo)) {
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return true;
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}
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return false;
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}
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// Used to prevent cycles.
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var checkingForCanYield = Object.create(null);
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export function canYield(methodInfo: MethodInfo): YieldReason {
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if (yieldMap[methodInfo.implKey] !== undefined) {
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return yieldMap[methodInfo.implKey];
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}
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if (methodInfo.isSynchronized) {
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return yieldMap[methodInfo.implKey] = YieldReason.Synchronized;
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}
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if (checkingForCanYield[methodInfo.implKey]) {
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return YieldReason.Cycle;
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}
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if (!methodInfo.code) {
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assert (methodInfo.isNative || methodInfo.isAbstract);
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return yieldMap[methodInfo.implKey] = YieldReason.None;
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}
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yieldWriter && yieldWriter.enter("> " + methodInfo.implKey);
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checkingForCanYield[methodInfo.implKey] = true;
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try {
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var result = YieldReason.None;
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var stream = new BytecodeStream(methodInfo.code);
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stream.setBCI(0);
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while (stream.currentBCI < methodInfo.code.length) {
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var op: Bytecodes = stream.currentBC();
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switch (op) {
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case Bytecodes.MONITORENTER:
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case Bytecodes.MONITOREXIT:
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result = YieldReason.MonitorEnterExit;
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break;
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case Bytecodes.INVOKEINTERFACE:
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result = YieldReason.Virtual;
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if (result) {
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yieldCounter.count("Method: " + methodInfo.implKey + " yields because it has an invoke interface.");
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}
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break;
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case Bytecodes.INVOKEVIRTUAL:
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case Bytecodes.INVOKESPECIAL:
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case Bytecodes.INVOKESTATIC:
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var cpi = stream.readCPI()
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var callee = methodInfo.classInfo.resolve(cpi, op === Bytecodes.INVOKESTATIC);
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if (!isStaticallyBound(op, callee)) {
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var callees = [];
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result = YieldReason.Virtual;
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if (false) { // Checking all possible callees, disabled for now until fully tested.
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result = YieldReason.None;
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gatherCallees(callees, callee.classInfo, callee);
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yieldWriter && yieldWriter.writeLn("Gather: " + callee.implKey + " " + callees.map(x => x.implKey).join(", "));
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for (var i = 0; i < callees.length; i++) {
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if (canYield(callees[i])) {
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yieldWriter && yieldWriter.writeLn("Gathered Method: " + callees[i].implKey + " yields.");
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result = YieldReason.Virtual;
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break;
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}
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}
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}
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if (result !== YieldReason.None) {
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yieldCounter.count("Method: " + methodInfo.implKey + " yields because callee: " + callee.implKey + " is not statically bound.");
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}
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break;
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}
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result = canYield(callee);
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if (result) {
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yieldCounter.count("Callee: " + callee.implKey + " yields.");
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yieldCounter.count("Method: " + methodInfo.implKey + " yields because callee: " + callee.implKey + " can yield.");
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}
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break;
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}
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if (result) {
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break;
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}
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stream.next();
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}
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} catch (e) {
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stderrWriter.writeLn("ERROR: " + methodInfo.implKey + " Cycle");
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stderrWriter.writeLn(e);
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stderrWriter.writeLns(e.stack);
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}
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checkingForCanYield[methodInfo.implKey] = false;
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yieldWriter && yieldWriter.leave("< " + methodInfo.implKey + " " + YieldReason[result]);
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return yieldMap[methodInfo.implKey] = result;
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}
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}
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