コード例 #1
0
  @NotNull
  public JetTypeInfo getSimpleNameExpressionTypeInfo(
      @NotNull JetSimpleNameExpression nameExpression,
      @NotNull ReceiverValue receiver,
      @Nullable ASTNode callOperationNode,
      @NotNull ResolutionContext context) {
    boolean[] result = new boolean[1];

    TemporaryBindingTrace traceForVariable =
        TemporaryBindingTrace.create(context.trace, "trace to resolve as variable", nameExpression);
    JetType type =
        getVariableType(
            nameExpression,
            receiver,
            callOperationNode,
            context.replaceBindingTrace(traceForVariable),
            result);
    if (result[0]) {
      traceForVariable.commit();
      if (type instanceof NamespaceType && context.expressionPosition == ExpressionPosition.FREE) {
        type = null;
      }
      return JetTypeInfo.create(type, context.dataFlowInfo);
    }

    Call call =
        CallMaker.makeCall(
            nameExpression,
            receiver,
            callOperationNode,
            nameExpression,
            Collections.<ValueArgument>emptyList());
    TemporaryBindingTrace traceForFunction =
        TemporaryBindingTrace.create(context.trace, "trace to resolve as function", nameExpression);
    ResolvedCall<FunctionDescriptor> resolvedCall =
        getResolvedCallForFunction(
            call,
            nameExpression,
            receiver,
            context,
            ResolveMode.TOP_LEVEL_CALL,
            ResolutionResultsCache.create(),
            result);
    if (result[0]) {
      FunctionDescriptor functionDescriptor =
          resolvedCall != null ? resolvedCall.getResultingDescriptor() : null;
      traceForFunction.commit();
      boolean hasValueParameters =
          functionDescriptor == null || functionDescriptor.getValueParameters().size() > 0;
      context.trace.report(
          FUNCTION_CALL_EXPECTED.on(nameExpression, nameExpression, hasValueParameters));
      type = functionDescriptor != null ? functionDescriptor.getReturnType() : null;
      return JetTypeInfo.create(type, context.dataFlowInfo);
    }

    traceForVariable.commit();
    return JetTypeInfo.create(null, context.dataFlowInfo);
  }
コード例 #2
0
 @NotNull
 private JetTypeInfo getSelectorReturnTypeInfo(
     @NotNull ReceiverValue receiver,
     @Nullable ASTNode callOperationNode,
     @NotNull JetExpression selectorExpression,
     @NotNull ResolutionContext context,
     @NotNull ResolveMode resolveMode,
     @NotNull ResolutionResultsCache resolutionResultsCache) {
   if (selectorExpression instanceof JetCallExpression) {
     return getCallExpressionTypeInfoWithoutFinalTypeCheck(
         (JetCallExpression) selectorExpression,
         receiver,
         callOperationNode,
         context,
         resolveMode,
         resolutionResultsCache);
   } else if (selectorExpression instanceof JetSimpleNameExpression) {
     return getSimpleNameExpressionTypeInfo(
         (JetSimpleNameExpression) selectorExpression, receiver, callOperationNode, context);
   } else if (selectorExpression instanceof JetQualifiedExpression) {
     JetQualifiedExpression qualifiedExpression = (JetQualifiedExpression) selectorExpression;
     JetExpression newReceiverExpression = qualifiedExpression.getReceiverExpression();
     JetTypeInfo newReceiverTypeInfo =
         getSelectorReturnTypeInfo(
             receiver,
             callOperationNode,
             newReceiverExpression,
             context.replaceExpectedType(NO_EXPECTED_TYPE),
             resolveMode,
             resolutionResultsCache);
     JetType newReceiverType = newReceiverTypeInfo.getType();
     DataFlowInfo newReceiverDataFlowInfo = newReceiverTypeInfo.getDataFlowInfo();
     JetExpression newSelectorExpression = qualifiedExpression.getSelectorExpression();
     if (newReceiverType != null && newSelectorExpression != null) {
       ExpressionReceiver expressionReceiver =
           new ExpressionReceiver(newReceiverExpression, newReceiverType);
       return getSelectorReturnTypeInfo(
           expressionReceiver,
           qualifiedExpression.getOperationTokenNode(),
           newSelectorExpression,
           context.replaceDataFlowInfo(newReceiverDataFlowInfo),
           resolveMode,
           resolutionResultsCache);
     }
   } else {
     context.trace.report(ILLEGAL_SELECTOR.on(selectorExpression, selectorExpression.getText()));
   }
   return JetTypeInfo.create(null, context.dataFlowInfo);
 }
コード例 #3
0
  @NotNull
  public TypeInfoForCall getQualifiedExpressionExtendedTypeInfo(
      @NotNull JetQualifiedExpression expression,
      @NotNull ResolutionContext context,
      @NotNull ResolveMode resolveMode) {
    // TODO : functions as values
    JetExpression selectorExpression = expression.getSelectorExpression();
    JetExpression receiverExpression = expression.getReceiverExpression();
    JetTypeInfo receiverTypeInfo =
        expressionTypingServices.getTypeInfoWithNamespaces(
            receiverExpression,
            context.scope,
            NO_EXPECTED_TYPE,
            context.dataFlowInfo,
            context.trace);
    JetType receiverType = receiverTypeInfo.getType();
    if (selectorExpression == null) return TypeInfoForCall.create(null, context.dataFlowInfo);
    if (receiverType == null)
      receiverType = ErrorUtils.createErrorType("Type for " + expression.getText());

    context = context.replaceDataFlowInfo(receiverTypeInfo.getDataFlowInfo());

    if (selectorExpression instanceof JetSimpleNameExpression) {
      ConstantUtils.propagateConstantValues(
          expression, context.trace, (JetSimpleNameExpression) selectorExpression);
    }

    TypeInfoForCall selectorReturnTypeInfo =
        getSelectorReturnTypeInfo(
            new ExpressionReceiver(receiverExpression, receiverType),
            expression.getOperationTokenNode(),
            selectorExpression,
            context,
            resolveMode);
    JetType selectorReturnType = selectorReturnTypeInfo.getType();

    // TODO move further
    if (!(receiverType instanceof NamespaceType)
        && expression.getOperationSign() == JetTokens.SAFE_ACCESS) {
      if (selectorReturnType != null
          && !selectorReturnType.isNullable()
          && !KotlinBuiltIns.getInstance().isUnit(selectorReturnType)) {
        if (receiverType.isNullable()) {
          selectorReturnType = TypeUtils.makeNullable(selectorReturnType);
        }
      }
    }

    // TODO : this is suspicious: remove this code?
    if (selectorReturnType != null) {
      context.trace.record(BindingContext.EXPRESSION_TYPE, selectorExpression, selectorReturnType);
    }
    JetTypeInfo typeInfo =
        JetTypeInfo.create(selectorReturnType, selectorReturnTypeInfo.getDataFlowInfo());
    if (resolveMode == ResolveMode.TOP_LEVEL_CALL) {
      DataFlowUtils.checkType(typeInfo.getType(), expression, context, typeInfo.getDataFlowInfo());
    }
    return TypeInfoForCall.create(typeInfo, selectorReturnTypeInfo);
  }
コード例 #4
0
 @NotNull
 public <D extends CallableDescriptor> JetTypeInfo getCallExpressionTypeInfo(
     @NotNull JetCallExpression callExpression,
     @NotNull ReceiverValue receiver,
     @Nullable ASTNode callOperationNode,
     @NotNull ResolutionContext context,
     @NotNull ResolveMode resolveMode,
     @NotNull ResolutionResultsCache resolutionResultsCache) {
   JetTypeInfo typeInfo =
       getCallExpressionTypeInfoWithoutFinalTypeCheck(
           callExpression,
           receiver,
           callOperationNode,
           context,
           resolveMode,
           resolutionResultsCache);
   if (resolveMode == ResolveMode.TOP_LEVEL_CALL) {
     DataFlowUtils.checkType(
         typeInfo.getType(), callExpression, context, typeInfo.getDataFlowInfo());
   }
   return typeInfo;
 }
コード例 #5
0
  @Override
  public JetTypeInfo visitFunctionLiteralExpression(
      @NotNull JetFunctionLiteralExpression expression, ExpressionTypingContext context) {
    JetBlockExpression bodyExpression = expression.getFunctionLiteral().getBodyExpression();
    if (bodyExpression == null) return null;

    Name callerName = getCallerName(expression);
    if (callerName != null) {
      context.labelResolver.enterLabeledElement(new LabelName(callerName.asString()), expression);
    }

    JetType expectedType = context.expectedType;
    boolean functionTypeExpected =
        !noExpectedType(expectedType)
            && KotlinBuiltIns.getInstance().isFunctionOrExtensionFunctionType(expectedType);

    AnonymousFunctionDescriptor functionDescriptor =
        createFunctionDescriptor(expression, context, functionTypeExpected);
    JetType safeReturnType =
        computeReturnType(expression, context, functionDescriptor, functionTypeExpected);
    functionDescriptor.setReturnType(safeReturnType);

    JetType receiver =
        DescriptorUtils.getReceiverParameterType(functionDescriptor.getReceiverParameter());
    List<JetType> valueParametersTypes =
        DescriptorUtils.getValueParametersTypes(functionDescriptor.getValueParameters());
    JetType resultType =
        KotlinBuiltIns.getInstance()
            .getFunctionType(
                Collections.<AnnotationDescriptor>emptyList(),
                receiver,
                valueParametersTypes,
                safeReturnType);
    if (!noExpectedType(expectedType)
        && KotlinBuiltIns.getInstance().isFunctionOrExtensionFunctionType(expectedType)) {
      // all checks were done before
      return JetTypeInfo.create(resultType, context.dataFlowInfo);
    }

    if (callerName != null) {
      context.labelResolver.exitLabeledElement(expression);
    }

    return DataFlowUtils.checkType(resultType, expression, context, context.dataFlowInfo);
  }
コード例 #6
0
  @NotNull
  public <D extends CallableDescriptor> JetTypeInfo getCallExpressionTypeInfoWithoutFinalTypeCheck(
      @NotNull JetCallExpression callExpression,
      @NotNull ReceiverValue receiver,
      @Nullable ASTNode callOperationNode,
      @NotNull ResolutionContext context,
      @NotNull ResolveMode resolveMode,
      @NotNull ResolutionResultsCache resolutionResultsCache) {
    boolean[] result = new boolean[1];
    Call call = CallMaker.makeCall(receiver, callOperationNode, callExpression);

    TemporaryBindingTrace traceForFunction =
        TemporaryBindingTrace.create(
            context.trace, "trace to resolve as function call", callExpression);
    ResolvedCallWithTrace<FunctionDescriptor> resolvedCall =
        getResolvedCallForFunction(
            call,
            callExpression,
            receiver,
            context.replaceBindingTrace(traceForFunction),
            resolveMode,
            resolutionResultsCache,
            result);
    if (result[0]) {
      FunctionDescriptor functionDescriptor =
          resolvedCall != null ? resolvedCall.getResultingDescriptor() : null;
      traceForFunction.commit();
      if (callExpression.getValueArgumentList() == null
          && callExpression.getFunctionLiteralArguments().isEmpty()) {
        // there are only type arguments
        boolean hasValueParameters =
            functionDescriptor == null || functionDescriptor.getValueParameters().size() > 0;
        context.trace.report(
            FUNCTION_CALL_EXPECTED.on(callExpression, callExpression, hasValueParameters));
      }
      if (functionDescriptor == null) {
        return JetTypeInfo.create(null, context.dataFlowInfo);
      }
      JetType type = functionDescriptor.getReturnType();

      return JetTypeInfo.create(type, resolvedCall.getDataFlowInfo());
    }

    JetExpression calleeExpression = callExpression.getCalleeExpression();
    if (calleeExpression instanceof JetSimpleNameExpression
        && callExpression.getTypeArgumentList() == null) {
      TemporaryBindingTrace traceForVariable =
          TemporaryBindingTrace.create(
              context.trace, "trace to resolve as variable with 'invoke' call", callExpression);
      JetType type =
          getVariableType(
              (JetSimpleNameExpression) calleeExpression,
              receiver,
              callOperationNode,
              context.replaceBindingTrace(traceForVariable),
              result);
      if (result[0]) {
        traceForVariable.commit();
        context.trace.report(
            FUNCTION_EXPECTED.on(
                (JetReferenceExpression) calleeExpression,
                calleeExpression,
                type != null ? type : ErrorUtils.createErrorType("")));
        return JetTypeInfo.create(null, context.dataFlowInfo);
      }
    }
    traceForFunction.commit();
    return JetTypeInfo.create(null, context.dataFlowInfo);
  }