Example usage for org.eclipse.jdt.internal.compiler.lookup TagBits HasParameterAnnotations

List of usage examples for org.eclipse.jdt.internal.compiler.lookup TagBits HasParameterAnnotations

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In this page you can find the example usage for org.eclipse.jdt.internal.compiler.lookup TagBits HasParameterAnnotations.

Prototype

long HasParameterAnnotations

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Usage

From source file:org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.java

License:Open Source License

public MethodBinding resolveTypesFor(MethodBinding method) {
    if ((method.modifiers & ExtraCompilerModifiers.AccUnresolved) == 0)
        return method;

    if (this.scope.compilerOptions().sourceLevel >= ClassFileConstants.JDK1_5) {
        if ((method.getAnnotationTagBits() & TagBits.AnnotationDeprecated) != 0)
            method.modifiers |= ClassFileConstants.AccDeprecated;
    }/*from w w  w  .  j  a  v a2  s  .  c om*/
    if (isViewedAsDeprecated() && !method.isDeprecated())
        method.modifiers |= ExtraCompilerModifiers.AccDeprecatedImplicitly;
    if (hasRestrictedAccess())
        method.modifiers |= ExtraCompilerModifiers.AccRestrictedAccess;

    AbstractMethodDeclaration methodDecl = method.sourceMethod();
    // GROOVY
    /* old {
    if (methodDecl == null) return null; // method could not be resolved in previous iteration
     } new*/
    if (methodDecl == null) {
        if (method instanceof LazilyResolvedMethodBinding) {
            LazilyResolvedMethodBinding lrMethod = (LazilyResolvedMethodBinding) method;
            // the rest is a copy of the code below but doesn't depend on the method declaration
            // nothing to do for method type parameters (there are none)
            // nothing to do for method exceptions (there are none)
            TypeBinding ptb = lrMethod.getParameterTypeBinding();
            if (ptb == null) {
                method.parameters = Binding.NO_PARAMETERS;
            } else {
                method.parameters = new TypeBinding[] { ptb };
            }
            method.returnType = lrMethod.getReturnTypeBinding();
            method.modifiers &= ~ExtraCompilerModifiers.AccUnresolved;
            return method;
        }
        // returning null is what this clause would have done anyway
        return null;
    }
    // FIXASC - end

    TypeParameter[] typeParameters = methodDecl.typeParameters();
    if (typeParameters != null) {
        methodDecl.scope.connectTypeVariables(typeParameters, true);
        // Perform deferred bound checks for type variables (only done after type variable hierarchy is connected)
        for (int i = 0, paramLength = typeParameters.length; i < paramLength; i++)
            typeParameters[i].checkBounds(methodDecl.scope);
    }
    TypeReference[] exceptionTypes = methodDecl.thrownExceptions;
    if (exceptionTypes != null) {
        int size = exceptionTypes.length;
        method.thrownExceptions = new ReferenceBinding[size];
        int count = 0;
        ReferenceBinding resolvedExceptionType;
        for (int i = 0; i < size; i++) {
            resolvedExceptionType = (ReferenceBinding) exceptionTypes[i].resolveType(methodDecl.scope,
                    true /* check bounds*/);
            if (resolvedExceptionType == null)
                continue;
            if (resolvedExceptionType.isBoundParameterizedType()) {
                methodDecl.scope.problemReporter().invalidParameterizedExceptionType(resolvedExceptionType,
                        exceptionTypes[i]);
                continue;
            }
            if (resolvedExceptionType.findSuperTypeOriginatingFrom(TypeIds.T_JavaLangThrowable, true) == null) {
                if (resolvedExceptionType.isValidBinding()) {
                    methodDecl.scope.problemReporter().cannotThrowType(exceptionTypes[i],
                            resolvedExceptionType);
                    continue;
                }
            }
            if ((resolvedExceptionType.tagBits & TagBits.HasMissingType) != 0) {
                method.tagBits |= TagBits.HasMissingType;
            }
            method.modifiers |= (resolvedExceptionType.modifiers & ExtraCompilerModifiers.AccGenericSignature);
            method.thrownExceptions[count++] = resolvedExceptionType;
        }
        if (count < size)
            System.arraycopy(method.thrownExceptions, 0, method.thrownExceptions = new ReferenceBinding[count],
                    0, count);
    }
    final boolean reportUnavoidableGenericTypeProblems = this.scope
            .compilerOptions().reportUnavoidableGenericTypeProblems;
    boolean foundArgProblem = false;
    Argument[] arguments = methodDecl.arguments;
    if (arguments != null) {
        int size = arguments.length;
        method.parameters = Binding.NO_PARAMETERS;
        TypeBinding[] newParameters = new TypeBinding[size];
        for (int i = 0; i < size; i++) {
            Argument arg = arguments[i];
            if (arg.annotations != null) {
                method.tagBits |= TagBits.HasParameterAnnotations;
            }
            // https://bugs.eclipse.org/bugs/show_bug.cgi?id=322817
            boolean deferRawTypeCheck = !reportUnavoidableGenericTypeProblems && !method.isConstructor()
                    && (arg.type.bits & ASTNode.IgnoreRawTypeCheck) == 0;
            TypeBinding parameterType;
            if (deferRawTypeCheck) {
                arg.type.bits |= ASTNode.IgnoreRawTypeCheck;
            }
            try {
                parameterType = arg.type.resolveType(methodDecl.scope, true /* check bounds*/);
            } finally {
                if (deferRawTypeCheck) {
                    arg.type.bits &= ~ASTNode.IgnoreRawTypeCheck;
                }
            }

            if (parameterType == null) {
                foundArgProblem = true;
            } else if (parameterType == TypeBinding.VOID) {
                methodDecl.scope.problemReporter().argumentTypeCannotBeVoid(this, methodDecl, arg);
                foundArgProblem = true;
            } else {
                if ((parameterType.tagBits & TagBits.HasMissingType) != 0) {
                    method.tagBits |= TagBits.HasMissingType;
                }
                TypeBinding leafType = parameterType.leafComponentType();
                if (leafType instanceof ReferenceBinding && (((ReferenceBinding) leafType).modifiers
                        & ExtraCompilerModifiers.AccGenericSignature) != 0)
                    method.modifiers |= ExtraCompilerModifiers.AccGenericSignature;
                newParameters[i] = parameterType;
                arg.binding = new LocalVariableBinding(arg, parameterType, arg.modifiers, true);
            }
        }
        // only assign parameters if no problems are found
        if (!foundArgProblem) {
            method.parameters = newParameters;
        }
    }

    // https://bugs.eclipse.org/bugs/show_bug.cgi?id=337799
    if (this.scope.compilerOptions().sourceLevel >= ClassFileConstants.JDK1_7) {
        if ((method.tagBits & TagBits.AnnotationSafeVarargs) != 0) {
            if (!method.isVarargs()) {
                methodDecl.scope.problemReporter().safeVarargsOnFixedArityMethod(method);
            } else if (!method.isStatic() && !method.isFinal() && !method.isConstructor()) {
                methodDecl.scope.problemReporter().safeVarargsOnNonFinalInstanceMethod(method);
            }
        } else if (method.parameters != null && method.parameters.length > 0 && method.isVarargs()) { // https://bugs.eclipse.org/bugs/show_bug.cgi?id=337795
            if (!method.parameters[method.parameters.length - 1].isReifiable()) {
                methodDecl.scope.problemReporter()
                        .possibleHeapPollutionFromVararg(methodDecl.arguments[methodDecl.arguments.length - 1]);
            }
        }
    }

    boolean foundReturnTypeProblem = false;
    if (!method.isConstructor()) {
        TypeReference returnType = methodDecl instanceof MethodDeclaration
                ? ((MethodDeclaration) methodDecl).returnType
                : null;
        if (returnType == null) {
            methodDecl.scope.problemReporter().missingReturnType(methodDecl);
            method.returnType = null;
            foundReturnTypeProblem = true;
        } else {
            // https://bugs.eclipse.org/bugs/show_bug.cgi?id=322817
            boolean deferRawTypeCheck = !reportUnavoidableGenericTypeProblems
                    && (returnType.bits & ASTNode.IgnoreRawTypeCheck) == 0;
            TypeBinding methodType;
            if (deferRawTypeCheck) {
                returnType.bits |= ASTNode.IgnoreRawTypeCheck;
            }
            try {
                methodType = returnType.resolveType(methodDecl.scope, true /* check bounds*/);
            } finally {
                if (deferRawTypeCheck) {
                    returnType.bits &= ~ASTNode.IgnoreRawTypeCheck;
                }
            }
            if (methodType == null) {
                foundReturnTypeProblem = true;
            } else if (methodType.isArrayType()
                    && ((ArrayBinding) methodType).leafComponentType == TypeBinding.VOID) {
                methodDecl.scope.problemReporter().returnTypeCannotBeVoidArray((MethodDeclaration) methodDecl);
                foundReturnTypeProblem = true;
            } else {
                if ((methodType.tagBits & TagBits.HasMissingType) != 0) {
                    method.tagBits |= TagBits.HasMissingType;
                }
                method.returnType = methodType;
                TypeBinding leafType = methodType.leafComponentType();
                if (leafType instanceof ReferenceBinding && (((ReferenceBinding) leafType).modifiers
                        & ExtraCompilerModifiers.AccGenericSignature) != 0)
                    method.modifiers |= ExtraCompilerModifiers.AccGenericSignature;
            }
        }
    }
    if (foundArgProblem) {
        methodDecl.binding = null;
        method.parameters = Binding.NO_PARAMETERS; // see 107004
        // nullify type parameter bindings as well as they have a backpointer to the method binding
        // (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=81134)
        if (typeParameters != null)
            for (int i = 0, length = typeParameters.length; i < length; i++)
                typeParameters[i].binding = null;
        return null;
    }
    if (foundReturnTypeProblem)
        return method; // but its still unresolved with a null return type & is still connected to its method declaration

    method.modifiers &= ~ExtraCompilerModifiers.AccUnresolved;
    return method;
}