com.oracle.truffle.api.nodes.Node.getEncapsulatingSourceSection()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中com.oracle.truffle.api.nodes.Node.getEncapsulatingSourceSection()方法的一些代码示例，展示了Node.getEncapsulatingSourceSection()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Node.getEncapsulatingSourceSection()方法的具体详情如下：
包路径：com.oracle.truffle.api.nodes.Node
类名称：Node
方法名：getEncapsulatingSourceSection

Node.getEncapsulatingSourceSection介绍

[英]Retrieves the segment of guest language source code that is represented by this Node, if present; otherwise retrieves the segment represented by the nearest AST ancestor that has this information. Can be called on any thread and without a language context.
[中]检索此节点表示的来宾语言源代码段（如果存在）；否则，检索由具有此信息的最近AST祖先表示的段。可以在任何线程上调用，无需语言上下文。

代码示例

代码示例来源：origin: com.oracle.truffle/truffle-api

  1. @Override
  2. public SourceSection getInstrumentedSourceSection() {
  3.   if (node == null) {
  4.     return null;
  5.   } else {
  6.     return node.getEncapsulatingSourceSection();
  7.   }
  8. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. @Override
  2. public SourceSection getInstrumentedSourceSection() {
  3.   if (node == null) {
  4.     return null;
  5.   } else {
  6.     return node.getEncapsulatingSourceSection();
  7.   }
  8. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. /**
  2.    * Returns a location where this exception occurred in the AST. This method may return
  3.    * <code>null</code> to indicate that the location is not available.
  4.    *
  5.    * @return the {@link SourceSection} or null
  6.    * @since 0.33
  7.    */
  8.   default SourceSection getSourceLocation() {
  9.     final Node node = getLocation();
  10.     return node == null ? null : node.getEncapsulatingSourceSection();
  11.   }
  12. }

代码示例来源：origin: com.oracle.truffle/truffle-api

  1. /**
  2.    * Returns a location where this exception occurred in the AST. This method may return
  3.    * <code>null</code> to indicate that the location is not available.
  4.    *
  5.    * @return the {@link SourceSection} or null
  6.    * @since 0.33
  7.    */
  8.   default SourceSection getSourceLocation() {
  9.     final Node node = getLocation();
  10.     return node == null ? null : node.getEncapsulatingSourceSection();
  11.   }
  12. }

代码示例来源：origin: com.oracle.truffle/truffle-api

  1. /**
  2.  * Get a source section representing this scope. Please note that while this scope does not
  3.  * provide variables that are valid only after the suspension point, the source section can
  4.  * actually span after the suspension point.
  5.  *
  6.  * @return the source section, or <code>null</code> when not available.
  7.  * @since 0.29
  8.  */
  9. public SourceSection getSourceSection() {
  10.   Node node = scope.getNode();
  11.   if (node != null) {
  12.     return node.getEncapsulatingSourceSection();
  13.   } else {
  14.     return null;
  15.   }
  16. }

代码示例来源：origin: com.oracle/truffle

  1. public String displaySourceLocation(Node node) {
  2.   if (node == null) {
  3.     return "<unknown>";
  4.   }
  5.   SourceSection section = node.getSourceSection();
  6.   boolean estimated = false;
  7.   if (section == null) {
  8.     section = node.getEncapsulatingSourceSection();
  9.     estimated = true;
  10.   }
  11.   return section.getShortDescription() + (estimated ? "~" : "");
  12. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. public SourceSection getInstrumentedSourceSection() {
  2.   SourceSection ss = eventContext.getInstrumentedSourceSection();
  3.   if (ss == null) {
  4.     Node node = eventContext.getInstrumentedNode();
  5.     // Nodes tagged with standard tags should have a source section attached.
  6.     PrintStream err = new PrintStream(env.err());
  7.     err.print("WARNING: Instrumented node " + node + " of class " + node.getClass() + " has null SourceSection.");
  8.     ss = node.getEncapsulatingSourceSection();
  9.     if (ss == null) {
  10.       RootNode root = node.getRootNode();
  11.       err.print("WARNING: and null encapsulating SourceSection under " + root + " of class = " + root.getClass());
  12.     }
  13.     err.flush();
  14.   }
  15.   return ss;
  16. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. /**
  2.  * Returns the source section location of this trace element. The source section is
  3.  * <code>null</code> if the source location is not available.
  4.  *
  5.  * @since 1.0
  6.  */
  7. public SourceSection getSourceSection() {
  8.   Node node = traceElement.getLocation();
  9.   if (node != null) {
  10.     return session.resolveSection(node.getEncapsulatingSourceSection());
  11.   }
  12.   return null;
  13. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. @Override
  2.   public Caller visitFrame(FrameInstance frameInstance) {
  3.     // we stop at eval root stack frames
  4.     if (!SuspendedEvent.isEvalRootStackFrame(DebuggerSession.this, frameInstance) && (depth++ == 0)) {
  5.       return null;
  6.     }
  7.     Node callNode = frameInstance.getCallNode();
  8.     // Prefer call node with a source section
  9.     if (callNode != null && callNode.getEncapsulatingSourceSection() != null) {
  10.       return new Caller(frameInstance);
  11.     } else {
  12.       if (nearestCaller[0] == null) {
  13.         nearestCaller[0] = new Caller(frameInstance);
  14.       }
  15.       return null;
  16.     }
  17.   }
  18. });

代码示例来源：origin: org.graalvm.compiler/compiler

  1. SourceSection sourceSection = null;
  2. if (callNode != null) {
  3.   sourceSection = callNode.getEncapsulatingSourceSection();

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. static void traceRewrite(Node oldNode, Node newNode, CharSequence reason) {
  2.   if (TruffleOptions.TraceRewritesFilterFromCost != null) {
  3.     if (filterByKind(oldNode, TruffleOptions.TraceRewritesFilterFromCost)) {
  4.       return;
  5.     }
  6.   }
  7.   if (TruffleOptions.TraceRewritesFilterToCost != null) {
  8.     if (filterByKind(newNode, TruffleOptions.TraceRewritesFilterToCost)) {
  9.       return;
  10.     }
  11.   }
  12.   String filter = TruffleOptions.TraceRewritesFilterClass;
  13.   Class<? extends Node> from = oldNode.getClass();
  14.   Class<? extends Node> to = newNode.getClass();
  15.   if (filter != null && (filterByContainsClassName(from, filter) || filterByContainsClassName(to, filter))) {
  16.     return;
  17.   }
  18.   final SourceSection reportedSourceSection = oldNode.getEncapsulatingSourceSection();
  19.   PrintStream out = System.out;
  20.   out.printf("[truffle]   rewrite %-50s |From %-40s |To %-40s |Reason %s %s%n", oldNode.toString(), formatNodeInfo(oldNode), formatNodeInfo(newNode),
  21.           reason != null && reason.length() > 0 ? reason : "unknown", formatLocation(reportedSourceSection));
  22. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. /**
  2.  * Get a source section representing this scope. Please note that while this scope does not
  3.  * provide variables that are valid only after the suspension point, the source section can
  4.  * actually span after the suspension point.
  5.  *
  6.  * @return the source section, or <code>null</code> when not available.
  7.  * @throws DebugException when guest language code throws an exception
  8.  * @since 0.29
  9.  */
  10. public SourceSection getSourceSection() throws DebugException {
  11.   try {
  12.     Node node = scope.getNode();
  13.     if (node != null) {
  14.       return session.resolveSection(node.getEncapsulatingSourceSection());
  15.     } else {
  16.       return null;
  17.     }
  18.   } catch (ThreadDeath td) {
  19.     throw td;
  20.   } catch (Throwable ex) {
  21.     throw new DebugException(session, ex, language, null, true, null);
  22.   }
  23. }

代码示例来源：origin: com.oracle.truffle/truffle-api

  1. static void traceRewrite(Node oldNode, Node newNode, CharSequence reason) {
  2.   if (TruffleOptions.TraceRewritesFilterFromCost != null) {
  3.     if (filterByKind(oldNode, TruffleOptions.TraceRewritesFilterFromCost)) {
  4.       return;
  5.     }
  6.   }
  7.   if (TruffleOptions.TraceRewritesFilterToCost != null) {
  8.     if (filterByKind(newNode, TruffleOptions.TraceRewritesFilterToCost)) {
  9.       return;
  10.     }
  11.   }
  12.   String filter = TruffleOptions.TraceRewritesFilterClass;
  13.   Class<? extends Node> from = oldNode.getClass();
  14.   Class<? extends Node> to = newNode.getClass();
  15.   if (filter != null && (filterByContainsClassName(from, filter) || filterByContainsClassName(to, filter))) {
  16.     return;
  17.   }
  18.   final SourceSection reportedSourceSection = oldNode.getEncapsulatingSourceSection();
  19.   PrintStream out = System.out;
  20.   out.printf("[truffle]   rewrite %-50s |From %-40s |To %-40s |Reason %s %s%n", oldNode.toString(), formatNodeInfo(oldNode), formatNodeInfo(newNode),
  21.           reason != null && reason.length() > 0 ? reason : "unknown", formatLocation(reportedSourceSection));
  22. }

代码示例来源：origin: com.oracle/truffle

  1. static void traceRewrite(Node oldNode, Node newNode, CharSequence reason) {
  2.   if (TruffleOptions.TraceRewritesFilterFromCost != null) {
  3.     if (filterByKind(oldNode, TruffleOptions.TraceRewritesFilterFromCost)) {
  4.       return;
  5.     }
  6.   }
  7.   if (TruffleOptions.TraceRewritesFilterToCost != null) {
  8.     if (filterByKind(newNode, TruffleOptions.TraceRewritesFilterToCost)) {
  9.       return;
  10.     }
  11.   }
  12.   String filter = TruffleOptions.TraceRewritesFilterClass;
  13.   Class<? extends Node> from = oldNode.getClass();
  14.   Class<? extends Node> to = newNode.getClass();
  15.   if (filter != null && (filterByContainsClassName(from, filter) || filterByContainsClassName(to, filter))) {
  16.     return;
  17.   }
  18.   final SourceSection reportedSourceSection = oldNode.getEncapsulatingSourceSection();
  19.   PrintStream out = System.out;
  20.   out.printf("[truffle]   rewrite %-50s |From %-40s |To %-40s |Reason %s%s%n", oldNode.toString(), formatNodeInfo(oldNode), formatNodeInfo(newNode),
  21.           reason != null && reason.length() > 0 ? reason : "unknown", reportedSourceSection != null ? " at " + reportedSourceSection.getShortDescription() : "");
  22. }

代码示例来源：origin: com.oracle.truffle/truffle-api

  1. /**
  2.  * Returns the source section of the location where the debugging session was suspended. The
  3.  * source section is <code>null</code> if the source location is not available.
  4.  *
  5.  * <p>
  6.  * This method is thread-safe.
  7.  *
  8.  * @since 0.17
  9.  */
  10. public SourceSection getSourceSection() {
  11.   verifyValidState(true);
  12.   if (currentFrame == null) {
  13.     SuspendedContext context = getContext();
  14.     return context.getInstrumentedSourceSection();
  15.   } else {
  16.     Node callNode = currentFrame.getCallNode();
  17.     if (callNode != null) {
  18.       return callNode.getEncapsulatingSourceSection();
  19.     }
  20.     return null;
  21.   }
  22. }

代码示例来源：origin: cesquivias/mumbler

  1. SourceSection sourceSection = callNode.getEncapsulatingSourceSection();
  2. Source source = sourceSection != null ? sourceSection.getSource() : null;
  3. String sourceName = source != null ? source.getName() : null;

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. /**
  2.  * Returns the source section of the location where the debugging session was suspended. The
  3.  * source section is <code>null</code> if the source location is not available.
  4.  *
  5.  * <p>
  6.  * This method is thread-safe.
  7.  *
  8.  * @since 0.17
  9.  */
  10. public SourceSection getSourceSection() {
  11.   verifyValidState(true);
  12.   if (currentFrame == null) {
  13.     SuspendedContext context = getContext();
  14.     return event.getSession().resolveSection(context.getInstrumentedSourceSection());
  15.   } else {
  16.     Node callNode = currentFrame.getCallNode();
  17.     if (callNode != null) {
  18.       return event.getSession().resolveSection(callNode.getEncapsulatingSourceSection());
  19.     }
  20.     return null;
  21.   }
  22. }

代码示例来源：origin: org.graalvm.truffle/truffle-api

  1. static PolyglotExceptionFrame createGuest(PolyglotExceptionImpl exception, TruffleStackTraceElement frame, boolean first) {
  2.   if (frame == null) {
  3.     return null;
  4.   }
  5.   RootNode targetRoot = frame.getTarget().getRootNode();
  6.   if (targetRoot.isInternal()) {
  7.     return null;
  8.   }
  9.   LanguageInfo info = targetRoot.getLanguageInfo();
  10.   if (info == null) {
  11.     return null;
  12.   }
  13.   PolyglotEngineImpl engine = exception.getEngine();
  14.   PolyglotLanguage language = engine.idToLanguage.get(info.getId());
  15.   String rootName = targetRoot.getName();
  16.   SourceSection location;
  17.   Node callNode = frame.getLocation();
  18.   if (callNode != null) {
  19.     com.oracle.truffle.api.source.SourceSection section = callNode.getEncapsulatingSourceSection();
  20.     if (section != null) {
  21.       Source source = engine.getAPIAccess().newSource(language.getId(), section.getSource());
  22.       location = engine.getAPIAccess().newSourceSection(source, section);
  23.     } else {
  24.       location = null;
  25.     }
  26.   } else {
  27.     location = first ? exception.getSourceLocation() : null;
  28.   }
  29.   return new PolyglotExceptionFrame(exception, language, location, rootName, false, null);
  30. }

代码示例来源：origin: com.oracle.truffle/truffle-api

  1. static PolyglotExceptionFrame createGuest(PolyglotExceptionImpl exception, TruffleStackTraceElement frame, boolean first) {
  2.   if (frame == null) {
  3.     return null;
  4.   }
  5.   RootNode targetRoot = frame.getTarget().getRootNode();
  6.   if (targetRoot.isInternal()) {
  7.     return null;
  8.   }
  9.   LanguageInfo info = targetRoot.getLanguageInfo();
  10.   if (info == null) {
  11.     return null;
  12.   }
  13.   PolyglotEngineImpl engine = exception.context.getEngine();
  14.   PolyglotLanguage language = engine.idToLanguage.get(info.getId());
  15.   String rootName = targetRoot.getName();
  16.   SourceSection location;
  17.   Node callNode = frame.getLocation();
  18.   if (callNode != null) {
  19.     com.oracle.truffle.api.source.SourceSection section = callNode.getEncapsulatingSourceSection();
  20.     if (section != null) {
  21.       Source source = engine.getAPIAccess().newSource(language.getId(), section.getSource());
  22.       location = engine.getAPIAccess().newSourceSection(source, section);
  23.     } else {
  24.       location = null;
  25.     }
  26.   } else {
  27.     location = first ? exception.getSourceLocation() : null;
  28.   }
  29.   return new PolyglotExceptionFrame(exception, language, location, rootName, false, null);
  30. }

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