public void checkBounds(Scope scope) {
    if (this.resolvedType == null) return;

    if (this.resolvedType.leafComponentType() instanceof ParameterizedTypeBinding) {
      ParameterizedTypeBinding parameterizedType =
          (ParameterizedTypeBinding) this.resolvedType.leafComponentType();
      ReferenceBinding currentType = parameterizedType.genericType();
      TypeVariableBinding[] typeVariables = currentType.typeVariables();
      TypeBinding[] argTypes = parameterizedType.arguments;
      if (argTypes != null && typeVariables != null) { // may be null in error cases
        parameterizedType.boundCheck(scope, this.typeArguments);
      }
    }
  }
コード例 #2
0
 public void checkTypeArgumentRedundancy(
     ParameterizedTypeBinding allocationType,
     ReferenceBinding enclosingType,
     TypeBinding[] argumentTypes,
     final BlockScope scope) {
   ProblemReporter reporter = scope.problemReporter();
   if ((reporter.computeSeverity(IProblem.RedundantSpecificationOfTypeArguments)
           == ProblemSeverities.Ignore)
       || scope.compilerOptions().sourceLevel < ClassFileConstants.JDK1_7) return;
   if (allocationType.arguments == null) return; // raw binding
   if (this.genericTypeArguments != null)
     return; // diamond can't occur with explicit type args for constructor
   if (argumentTypes == Binding.NO_PARAMETERS
       && this.typeExpected instanceof ParameterizedTypeBinding) {
     ParameterizedTypeBinding expected = (ParameterizedTypeBinding) this.typeExpected;
     if (expected.arguments != null
         && allocationType.arguments.length == expected.arguments.length) {
       // check the case when no ctor takes no params and inference uses the expected type directly
       // eg. X<String> x = new X<String>()
       int i;
       for (i = 0; i < allocationType.arguments.length; i++) {
         if (allocationType.arguments[i] != expected.arguments[i]) break;
       }
       if (i == allocationType.arguments.length) {
         reporter.redundantSpecificationOfTypeArguments(this.type, allocationType.arguments);
         return;
       }
     }
   }
   TypeBinding[] inferredTypes =
       inferElidedTypes(allocationType.genericType(), enclosingType, argumentTypes, scope);
   if (inferredTypes == null) {
     return;
   }
   for (int i = 0; i < inferredTypes.length; i++) {
     if (inferredTypes[i] != allocationType.arguments[i]) return;
   }
   reporter.redundantSpecificationOfTypeArguments(this.type, allocationType.arguments);
 }