本文整理了Java中org.parboiled.support.ValueStack类的一些代码示例，展示了ValueStack类的具体用法。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。ValueStack类的具体详情如下：
包路径：org.parboiled.support.ValueStack
类名称：ValueStack

ValueStack介绍

[英]A ValueStack is a stack implementation for parser values. The current state of the stack can be saved and restored with the methods #takeSnapshot() and #restoreSnapshot(Object) ()}, whose implementations should be super efficient since they are being used extensively during a parsing run. A ValueStack also serves as an Iterable over the current stack values (the values are being provided with the last value (on top of the stack) first).
[中]ValueStack是解析器值的堆栈实现。可以使用#takeSnapshot（）和#restoreSnapshot（Object）（）方法保存和恢复堆栈的当前状态，这些方法的实现应该非常高效，因为它们在解析运行期间被广泛使用。ValueStack还可以作为当前堆栈值的一个Iterable（首先提供最后一个值（在堆栈顶部）的值）。

代码示例

代码示例来源：origin: immutables/immutables

@Override
public Object get(Context<Object> context) {
 return context.getValueStack().pop();
}

代码示例来源：origin: immutables/immutables

@Override
public final boolean run(Context<Object> context) {
 V value = extractor.get(context);
 @SuppressWarnings("unchecked")
 B builder = (B) context.getValueStack().peek();
 specify(builder, value);
 return true;
}

代码示例来源：origin: immutables/immutables

@Override
public final boolean run(Context<Object> context) {
 B builder = builder();
 context.getValueStack().push(builder);
 return true;
}

代码示例来源：origin: org.geotools/gt-css

<T> List<T> popAll(Class... classes) {
  ValueStack<Object> valueStack = getContext().getValueStack();
  List<T> result = new ArrayList<T>();
  while (!valueStack.isEmpty() && isInstance(classes, valueStack.peek())) {
    result.add((T) valueStack.pop());
  }
  if (!valueStack.isEmpty() && valueStack.peek() == MARKER) {
    valueStack.pop();
  }
  Collections.reverse(result);
  return result;
}

代码示例来源：origin: AlexFalappa/nb-springboot

@Override
public boolean run(Context<CfgElement> context) {
  final ValueStack<CfgElement> stack = context.getValueStack();
  if (!context.hasError()) {
    int size = stack.size();
    switch (size) {
      case 1:
        CfgElement elemKey = stack.pop();
        parsedProps.setProperty(unescape(elemKey.getText()), "");
        cfgFile.getElements().add(new PairElement(elemKey));
        break;
      case 2:
        // NOTE: stack popping order below is important!
        final CfgElement elemValue = stack.pop();
        elemKey = stack.pop();
        parsedProps.setProperty(unescape(elemKey.getText()), unescape(elemValue.getText()));
        cfgFile.getElements().add(new PairElement(elemKey, elemValue));
        break;
      default:
        throw new IllegalStateException(String.format("Cannot manage %d values on the parsing stack", size));
    }
  } else {
    stack.clear();
  }
  return true;
}

代码示例来源：origin: org.parboiled/parboiled-core

@SuppressWarnings({"ConstantConditions"})
public void createNode() {
  if (!nodeSuppressed) {
    node = new NodeImpl<V>(matcher, getSubNodes(), startIndex, currentIndex,
        valueStack.isEmpty() ? null : valueStack.peek(), hasError);
    if (parent != null) {
      parent.subNodes = parent.subNodes.prepend(node);
    }
  }
}

代码示例来源：origin: com.github.edgarespina/handlebars

@Override
 public boolean run(final Context<BaseTemplate> context) {
  ValueStack<BaseTemplate> stack = context.getValueStack();
  if (stack.size() > 1) {
   BaseTemplate body = pop();
   ((Block) section.get()).inverse(body);
  }
  return addToline(section.get());
 }
}

代码示例来源：origin: jtwig/jtwig-core

@Test
  public void set() throws Exception {
    ParsingResult<SetNode> result = parse(underTest.NodeRule(), "{% set a = 123 %}");

    assertThat(result.matched, is(true));
    assertThat(result.valueStack.isEmpty(), is(false));
  }
}

代码示例来源：origin: org.parboiled/parboiled-core

/**
 * Creates a new ParsingResult.
 *
 * @param matched       true if the rule matched the input
 * @param parseTreeRoot the parse tree root node
 * @param valueStack    the value stack of the parsing run
 * @param parseErrors   the list of parse errors
 * @param inputBuffer   the input buffer
 */
public ParsingResult(boolean matched, Node<V> parseTreeRoot, ValueStack<V> valueStack, List<ParseError> parseErrors,
           InputBuffer inputBuffer) {
  this.matched = matched;
  this.parseTreeRoot = parseTreeRoot;
  this.valueStack = checkArgNotNull(valueStack, "valueStack");
  this.resultValue = valueStack.isEmpty() ? null : valueStack.peek();
  this.parseErrors = checkArgNotNull(parseErrors, "parseErrors");
  this.inputBuffer = checkArgNotNull(inputBuffer, "inputBuffer");
}

代码示例来源：origin: com.github.edgarespina/handlebars

@Override
 public boolean run(final Context<BaseTemplate> context) {
  ValueStack<BaseTemplate> stack = context.getValueStack();
  if (stack.size() > 1) {
   BaseTemplate body = pop();
   ((Block) section.get()).body(body);
  }
  return addToline(section.get());
 }
}).label("block");

代码示例来源：origin: jtwig/jtwig-core

@Test
public void set() throws Exception {
  ParsingResult<SetNode> result = parse(underTest.NodeRule(), "{% do 1 + 123 %}");
  assertThat(result.matched, is(true));
  assertThat(result.valueStack.isEmpty(), is(false));
}

代码示例来源：origin: immutables/immutables

@Override
public final T get(Context<Object> context) {
 @SuppressWarnings("unchecked")
 B builder = (B) context.getValueStack().pop();
 return build(builder);
}

代码示例来源：origin: immutables/immutables

@Override
 public final boolean run(Context<Object> context) {
  Object value = get(context);
  context.getValueStack().push(value);
  return true;
 }
}

代码示例来源：origin: org.pegdown/pegdown

boolean setListItemIndices() {
  SuperNode listItem = (SuperNode) getContext().getValueStack().peek();
  List<Node> children = listItem.getChildren();
  listItem.setStartIndex(children.get(0).getStartIndex());
  listItem.setEndIndex(children.get(children.size() - 1).getEndIndex());
  return true;
}

代码示例来源：origin: io.smartcat/ranger

/**
 * Creates CSV value.
 *
 * @return An CSV value.
 */
protected CsvReaderValue createCsvReaderValue() {
  CSVParserSettings parserSettings = null;
  switch (getContext().getValueStack().size()) {
  case 1:
    parserSettings = new CSVParserSettings((String) pop());
    break;
  case 2:
    parserSettings = new CSVParserSettings((String) pop(1), (char) pop());
    break;
  case 8:
    parserSettings = new CSVParserSettings((String) pop(7), (char) pop(6), (String) pop(5), (boolean) pop(4),
        peek(3) instanceof NullValue ? null : (Character) pop(3), (char) pop(2), (boolean) pop(1),
        peek() instanceof NullValue ? null : (String) pop());
    break;
  default:
    throw new RuntimeException("Unsupported number of parameters, should not happen ever.");
  }
  return new CsvReaderValue(parserSettings);
}

代码示例来源：origin: org.geotools/gt-css

@Override
  public boolean run(Context ctx) {
    List contents = (List) pop();
    Selector selector = (Selector) pop();
    String comment = null;
    if (!ctx.getValueStack().isEmpty() && peek() instanceof String) {
      comment = (String) pop();
      comment = comment.trim();
      // get rid of the extra comments between rules
      while (!ctx.getValueStack().isEmpty() && peek() instanceof String) {
        pop();
      }
    }
    final Stream stream = contents.stream();
    Map<Boolean, List> splitContents =
        (Map<Boolean, List>)
            stream.collect(
                Collectors.partitioningBy(
                    x -> x instanceof CssRule));
    List<Property> properties = splitContents.get(Boolean.FALSE);
    List<CssRule> subRules = splitContents.get(Boolean.TRUE);
    final CssRule rule = new CssRule(selector, properties, comment);
    rule.nestedRules = subRules;
    push(rule);
    return true;
  }
});

代码示例来源：origin: org.pegdown/pegdown

Node parseListBlock(StringBuilderVar block) {
  Context<Object> context = getContext();
  Node innerRoot = parseInternal(block);
  setContext(context); // we need to save and restore the context since we might be recursing
  block.clearContents();
  //debugMsg("parsed list block " + innerRoot.toString() + " adjusting indices by " + getContext().getValueStack().peek(), block.getString());
  return withIndicesShifted(innerRoot, (Integer) context.getValueStack().pop());
}

代码示例来源：origin: org.geotools/gt-css

@Override
  public boolean run(Context ctx) {
    String match = match();
    if (match.endsWith("k") || match.endsWith("M") || match.endsWith("G")) {
      match = scaleValueToString(match);
    }
    ctx.getValueStack().push(new Value.Literal(match));
    return true;
  }
});

代码示例来源：origin: org.parboiled/parboiled-java

/**
 * Returns the value the given number of elements below the top of the value stack without removing it.
 *
 * @param down the number of elements to skip (0 being equivalent to peek())
 * @return the value
 * @throws IllegalArgumentException if the stack does not contain enough elements to perform this operation
 */
public V peek(int down) {
  check();
  return context.getValueStack().peek(down);
}

代码示例来源：origin: smartcat-labs/ranger

/**
 * Creates CSV value.
 *
 * @return An CSV value.
 */
protected CsvReaderValue createCsvReaderValue() {
  CSVParserSettings parserSettings = null;
  switch (getContext().getValueStack().size()) {
  case 1:
    parserSettings = new CSVParserSettings((String) pop());
    break;
  case 2:
    parserSettings = new CSVParserSettings((String) pop(1), (char) pop());
    break;
  case 8:
    parserSettings = new CSVParserSettings((String) pop(7), (char) pop(6), (String) pop(5), (boolean) pop(4),
        peek(3) instanceof NullValue ? null : (Character) pop(3), (char) pop(2), (boolean) pop(1),
        peek() instanceof NullValue ? null : (String) pop());
    break;
  default:
    throw new RuntimeException("Unsupported number of parameters, should not happen ever.");
  }
  return new CsvReaderValue(parserSettings);
}