本文整理了Java中org.eclipse.xtext.xbase.XMemberFeatureCall.isNullSafe()方法的一些代码示例，展示了XMemberFeatureCall.isNullSafe()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。XMemberFeatureCall.isNullSafe()方法的具体详情如下：
包路径：org.eclipse.xtext.xbase.XMemberFeatureCall
类名称：XMemberFeatureCall
方法名：isNullSafe

XMemberFeatureCall.isNullSafe介绍

[英]Returns the value of the 'Null Safe' attribute.

If the meaning of the 'Null Safe' attribute isn't clear, there really should be more of a description here...
[中]返回“Null-Safe”属性的值。
如果“Null-Safe”属性的含义不清楚，这里真的应该有更多的描述。。。

代码示例

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

protected boolean isVariableDeclarationRequired(XMemberFeatureCall expr, @SuppressWarnings("unused") ITreeAppendable b) {
  return expr.isNullSafe();
}

代码示例来源：origin: io.sarl.lang/io.sarl.lang

/**  Generate a feature call.
 *
 * @param expr the call expression.
 */
public void generate(XAbstractFeatureCall expr) {
  if (expr.isTypeLiteral()) {
    final JvmType type = (JvmType) expr.getFeature();
    this.codeReceiver.append(type);
  //} else if (getExpressionHelper().isShortCircuitOperation(expr)) {
  //	generateShortCircuitInvocation(expr);
  } else {
    if (expr instanceof XMemberFeatureCall && ((XMemberFeatureCall) expr).isNullSafe()) {
      featureCalltoJavaExpression(expr, () -> expr);
    } else {
      featureCalltoJavaExpression(expr, null);
    }
  }
}

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

protected boolean isPotentialTypeLiteralImpl(XExpression featureCall, /* @Nullable */ IResolvedTypes resolvedTypes, boolean staticNotation) {
  if (featureCall instanceof XMemberFeatureCall) {
    XMemberFeatureCall casted = (XMemberFeatureCall) featureCall;
    if (casted.isExplicitOperationCallOrBuilderSyntax() || casted.isNullSafe()) {
      return false;
    }
    XExpression target = casted.getMemberCallTarget();
    if (casted.isExplicitStatic() != staticNotation) {
      return false;
    }
    return isPotentialTypeLiteralImpl(target, resolvedTypes, staticNotation);
  }
  if (featureCall instanceof XFeatureCall) {
    XFeatureCall casted = (XFeatureCall) featureCall;
    if (casted.isExplicitOperationCallOrBuilderSyntax()) {
      return false;
    }
    if (resolvedTypes == null)
      return true;
    LightweightTypeReference knownType = resolvedTypes.getActualType(casted);
    if (knownType == null || knownType.isUnknown()) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

protected Object _doEvaluate(final XMemberFeatureCall featureCall, final IEvaluationContext context, final CancelIndicator indicator) {
  if (featureCall.isTypeLiteral()) {
    JvmType type = (JvmType) featureCall.getFeature();
    Object result = translateJvmTypeToResult(type, 0);
    return result;
  } else {
    XExpression receiver = getActualReceiver(featureCall); //, featureCall.getFeature(), featureCall.getImplicitReceiver());
    Object receiverObj = receiver==null?null:internalEvaluate(receiver, context, indicator);
    if (featureCall.isNullSafe() && receiverObj==null) {
      return getDefaultObjectValue(typeResolver.resolveTypes(featureCall).getActualType(featureCall));
    }
    return invokeFeature(featureCall.getFeature(), featureCall, receiverObj, context, indicator);
  }
}

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

@Check
void checkNullSafeFeatureCallWithPrimitives(XMemberFeatureCall featureCall) {
  if (featureCall.isNullSafe()) {
    if (getActualType(featureCall.getMemberCallTarget()).isPrimitive()) {
      error("Cannot use null-safe feature call on primitive receiver", featureCall,
          Literals.XMEMBER_FEATURE_CALL__NULL_SAFE, NULL_SAFE_FEATURE_CALL_ON_PRIMITIVE);
      return;
    }
    LightweightTypeReference type = getActualType(featureCall);
    if (type.isPrimitive() && isValueExpectedRecursive(featureCall)) {
      addIssue("Null-safe call of primitive-valued feature " + featureCall.getConcreteSyntaxFeatureName() 
          + ", default value "+ getDefaultValue(type) +" will be used", 
          featureCall, NULL_SAFE_FEATURE_CALL_OF_PRIMITIVE_VALUED_FEATURE);
    }
  }
}

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

if (featureCall.isNullSafe())
  acceptor.accept(memberFeatureCallElements.getNullSafeQuestionMarkFullStopKeyword_1_1_0_0_1_1_0());
else if (featureCall.isExplicitStatic())

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

return !((XMemberFeatureCall) featureCall).isNullSafe();

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

if (((XMemberFeatureCall) expr.eContainer()).isNullSafe()) {
  if (expr instanceof XFeatureCall) {
    JvmIdentifiableElement feature = ((XFeatureCall) expr).getFeature();

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

if (expr instanceof XMemberFeatureCall && ((XMemberFeatureCall) expr).isNullSafe()) {
  compileNullSafeFeatureCall((XMemberFeatureCall) expr, b, isReferenced);
} else {

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

final XMemberFeatureCall it = ((XMemberFeatureCall)top);
boolean _matched = false;
boolean _isNullSafe = it.isNullSafe();
if (_isNullSafe) {
 _matched=true;

代码示例来源：origin: org.eclipse.xtext/org.eclipse.xtext.xbase

final XMemberFeatureCall it = call;
boolean _matched = false;
boolean _isNullSafe = it.isNullSafe();
if (_isNullSafe) {
 _matched=true;