org.eclipse.jdt.internal.compiler.ast.Annotation.nullLocationBitsFromAnnotationValue()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中org.eclipse.jdt.internal.compiler.ast.Annotation.nullLocationBitsFromAnnotationValue()方法的一些代码示例，展示了Annotation.nullLocationBitsFromAnnotationValue()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。Annotation.nullLocationBitsFromAnnotationValue()方法的具体详情如下：
包路径：org.eclipse.jdt.internal.compiler.ast.Annotation
类名称：Annotation
方法名：nullLocationBitsFromAnnotationValue

Annotation.nullLocationBitsFromAnnotationValue介绍

[英]Convert the value() attribute of @NonNullByDefault into a bitvector a la Binding#NullnessDefaultMASK. This method understands value encodings from source and binary types. pre: null annotation analysis is enabled
[中]将@NonNullByDefault的value（）属性转换为位向量a la Binding#nullnessdaultmask。此方法理解源类型和二进制类型的值编码。前置：已启用空批注分析

代码示例

代码示例来源：origin: org.eclipse.jdt/org.eclipse.jdt.core

static int getNonNullByDefaultValue(AnnotationBinding annotation) {
  ElementValuePair[] elementValuePairs = annotation.getElementValuePairs();
  if (elementValuePairs == null || elementValuePairs.length == 0 ) {
    // no argument: apply default default
    ReferenceBinding annotationType = annotation.getAnnotationType();
    if (annotationType == null) return 0;
    MethodBinding[] annotationMethods = annotationType.methods();
    if (annotationMethods != null && annotationMethods.length == 1) {
      Object value = annotationMethods[0].getDefaultValue();
      return Annotation.nullLocationBitsFromAnnotationValue(value);
    }
    return DefaultLocationsForTrueValue; // custom unconfigurable NNBD
  } else if (elementValuePairs.length > 0) {
    // evaluate the contained EnumConstantSignatures:
    int nullness = 0;
    for (int i = 0; i < elementValuePairs.length; i++)
      nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue());
    return nullness;
  } else {
    // empty argument: cancel all defaults from enclosing scopes
    return NULL_UNSPECIFIED_BY_DEFAULT;
  }
}

代码示例来源：origin: org.eclipse.tycho/org.eclipse.jdt.core

private long determineNonNullByDefaultTagBits(ReferenceBinding annotationType, MemberValuePair valueAttribute) {
  long tagBits = 0;
  Object value = null;
  if (valueAttribute != null) {
    if (valueAttribute.compilerElementPair != null)
      value = valueAttribute.compilerElementPair.value;
  } else { // fetch default value  - TODO: cache it?
    MethodBinding[] methods = annotationType.methods();
    if (methods != null && methods.length == 1)
      value = methods[0].getDefaultValue();
    else
      tagBits |= TagBits.AnnotationNonNullByDefault; // custom unconfigurable NNBD
  }
  if (value instanceof BooleanConstant) {
    // boolean value is used for declaration annotations, signal using the annotation tag bit:
    tagBits |= ((BooleanConstant)value).booleanValue() ? TagBits.AnnotationNonNullByDefault : TagBits.AnnotationNullUnspecifiedByDefault;
  } else if (value != null) {
    // non-boolean value signals type annotations, evaluate from DefaultLocation[] to bitvector a la Binding#NullnessDefaultMASK:
    tagBits |= nullLocationBitsFromAnnotationValue(value);
  }
  return tagBits;
}

代码示例来源：origin: org.eclipse.jdt/org.eclipse.jdt.core

private long determineNonNullByDefaultTagBits(ReferenceBinding annotationType, MemberValuePair valueAttribute) {
  long tagBits = 0;
  Object value = null;
  if (valueAttribute != null) {
    if (valueAttribute.compilerElementPair != null)
      value = valueAttribute.compilerElementPair.value;
  } else { // fetch default value  - TODO: cache it?
    MethodBinding[] methods = annotationType.methods();
    if (methods != null && methods.length == 1)
      value = methods[0].getDefaultValue();
    else
      tagBits |= Binding.DefaultLocationsForTrueValue; // custom unconfigurable NNBD
  }
  if (value instanceof BooleanConstant) {
    // boolean value is used for declaration annotations, signal using the annotation tag bit:
    tagBits |= ((BooleanConstant)value).booleanValue() ? Binding.DefaultLocationsForTrueValue : Binding.NULL_UNSPECIFIED_BY_DEFAULT;
  } else if (value != null) {
    // non-boolean value signals type annotations, evaluate from DefaultLocation[] to bitvector a la Binding#NullnessDefaultMASK:
    tagBits |= nullLocationBitsFromAnnotationValue(value);
  } else {
    int result = BinaryTypeBinding.evaluateTypeQualifierDefault(annotationType);
    if(result != 0) {
      return result;
    }
  }
  return tagBits;
}

代码示例来源：origin: org.eclipse.tycho/org.eclipse.jdt.core

/** given an application of @NonNullByDefault convert the annotation argument (if any) into a bitvector a la {@link Binding#NullnessDefaultMASK} */
// pre: null annotation analysis is enabled
int getNonNullByDefaultValue(IBinaryAnnotation annotation) {
  char[] annotationTypeName = annotation.getTypeName();
  char[][] typeName = signature2qualifiedTypeName(annotationTypeName);
  IBinaryElementValuePair[] elementValuePairs = annotation.getElementValuePairs();
  if (elementValuePairs == null || elementValuePairs.length == 0 ) {
    // no argument: apply default default
    ReferenceBinding annotationType = this.environment.getType(typeName, this.environment.UnNamedModule); // TODO(SHMOD): null annotations from a module?
    if (annotationType == null) return 0;
    if (annotationType.isUnresolvedType())
      annotationType = ((UnresolvedReferenceBinding) annotationType).resolve(this.environment, false);
    MethodBinding[] annotationMethods = annotationType.methods();
    if (annotationMethods != null && annotationMethods.length == 1) {
      Object value = annotationMethods[0].getDefaultValue();
      return Annotation.nullLocationBitsFromAnnotationValue(value);
    }
    return NONNULL_BY_DEFAULT; // custom unconfigurable NNBD
  } else if (elementValuePairs.length > 0) {
    // evaluate the contained EnumConstantSignatures:
    int nullness = 0;
    for (int i = 0; i < elementValuePairs.length; i++)
      nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue());
    return nullness;
  } else {
    // empty argument: cancel all defaults from enclosing scopes
    return NULL_UNSPECIFIED_BY_DEFAULT;
  }
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.jdt.core

/** given an application of @NonNullByDefault convert the annotation argument (if any) into a bitvector a la {@link Binding#NullnessDefaultMASK} */
// pre: null annotation analysis is enabled
int getNonNullByDefaultValue(IBinaryAnnotation annotation) {
  char[] annotationTypeName = annotation.getTypeName();
  char[][] typeName = signature2qualifiedTypeName(annotationTypeName);
  IBinaryElementValuePair[] elementValuePairs = annotation.getElementValuePairs();
  if (elementValuePairs == null || elementValuePairs.length == 0 ) {
    // no argument: apply default default
    ReferenceBinding annotationType = this.environment.getType(typeName);
    if (annotationType == null) return 0;
    if (annotationType.isUnresolvedType())
      annotationType = ((UnresolvedReferenceBinding) annotationType).resolve(this.environment, false);
    MethodBinding[] annotationMethods = annotationType.methods();
    if (annotationMethods != null && annotationMethods.length == 1) {
      Object value = annotationMethods[0].getDefaultValue();
      return Annotation.nullLocationBitsFromAnnotationValue(value);
    }
    return NONNULL_BY_DEFAULT; // custom unconfigurable NNBD
  } else if (elementValuePairs.length > 0) {
    // evaluate the contained EnumConstantSignatures:
    int nullness = 0;
    for (int i = 0; i < elementValuePairs.length; i++)
      nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue());
    return nullness;
  } else {
    // empty argument: cancel all defaults from enclosing scopes
    return NULL_UNSPECIFIED_BY_DEFAULT;
  }
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/ecj

/** given an application of @NonNullByDefault convert the annotation argument (if any) into a bitvector a la {@link Binding#NullnessDefaultMASK} */
// pre: null annotation analysis is enabled
int getNonNullByDefaultValue(IBinaryAnnotation annotation) {
  char[] annotationTypeName = annotation.getTypeName();
  char[][] typeName = signature2qualifiedTypeName(annotationTypeName);
  IBinaryElementValuePair[] elementValuePairs = annotation.getElementValuePairs();
  if (elementValuePairs == null || elementValuePairs.length == 0 ) {
    // no argument: apply default default
    ReferenceBinding annotationType = this.environment.getType(typeName);
    if (annotationType == null) return 0;
    if (annotationType.isUnresolvedType())
      annotationType = ((UnresolvedReferenceBinding) annotationType).resolve(this.environment, false);
    MethodBinding[] annotationMethods = annotationType.methods();
    if (annotationMethods != null && annotationMethods.length == 1) {
      Object value = annotationMethods[0].getDefaultValue();
      return Annotation.nullLocationBitsFromAnnotationValue(value);
    }
    return NONNULL_BY_DEFAULT; // custom unconfigurable NNBD
  } else if (elementValuePairs.length > 0) {
    // evaluate the contained EnumConstantSignatures:
    int nullness = 0;
    for (int i = 0; i < elementValuePairs.length; i++)
      nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue());
    return nullness;
  } else {
    // empty argument: cancel all defaults from enclosing scopes
    return NULL_UNSPECIFIED_BY_DEFAULT;
  }
}

代码示例来源：origin: org.eclipse.jdt.core.compiler/ecj

/** given an application of @NonNullByDefault convert the annotation argument (if any) into a bitvector a la {@link Binding#NullnessDefaultMASK} */
// pre: null annotation analysis is enabled
int getNonNullByDefaultValue(IBinaryAnnotation annotation) {
  char[] annotationTypeName = annotation.getTypeName();
  char[][] typeName = signature2qualifiedTypeName(annotationTypeName);
  IBinaryElementValuePair[] elementValuePairs = annotation.getElementValuePairs();
  if (elementValuePairs == null || elementValuePairs.length == 0 ) {
    // no argument: apply default default
    ReferenceBinding annotationType = this.environment.getType(typeName);
    if (annotationType == null) return 0;
    if (annotationType.isUnresolvedType())
      annotationType = ((UnresolvedReferenceBinding) annotationType).resolve(this.environment, false);
    MethodBinding[] annotationMethods = annotationType.methods();
    if (annotationMethods != null && annotationMethods.length == 1) {
      Object value = annotationMethods[0].getDefaultValue();
      return Annotation.nullLocationBitsFromAnnotationValue(value);
    }
    return NONNULL_BY_DEFAULT; // custom unconfigurable NNBD
  } else if (elementValuePairs.length > 0) {
    // evaluate the contained EnumConstantSignatures:
    int nullness = 0;
    for (int i = 0; i < elementValuePairs.length; i++)
      nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue());
    return nullness;
  } else {
    // empty argument: cancel all defaults from enclosing scopes
    return NULL_UNSPECIFIED_BY_DEFAULT;
  }
}

代码示例来源：origin: org.eclipse.jdt/org.eclipse.jdt.core

if (annotationMethods != null && annotationMethods.length == 1) {
    Object value = annotationMethods[0].getDefaultValue();
    return Annotation.nullLocationBitsFromAnnotationValue(value);
    nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue());
  return nullness;
} else {

代码示例来源：origin: org.eclipse.jdt.core.compiler/ecj

} else if (value != null) {
  tagBits |= nullLocationBitsFromAnnotationValue(value);

代码示例来源：origin: org.eclipse.scout.sdk.deps/ecj

} else if (value != null) {
  tagBits |= nullLocationBitsFromAnnotationValue(value);

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.jdt.core

} else if (value != null) {
  tagBits |= nullLocationBitsFromAnnotationValue(value);

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