Package org.eclipse.jdt.internal.compiler.flow

Examples of org.eclipse.jdt.internal.compiler.flow.FlowInfo

165
166
167
168
169
170
171
172
173
174
175
176
        manageSyntheticAccessIfNecessary(currentScope, flowInfo, true /*read-access*/);
      }
      // check if reading a final blank field
      FieldBinding fieldBinding = (FieldBinding) this.binding;
      if (fieldBinding.isBlankFinal() && currentScope.needBlankFinalFieldInitializationCheck(fieldBinding)) {
        FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(fieldBinding.declaringClass.original(), flowInfo);
        if (!fieldInits.isDefinitelyAssigned(fieldBinding)) {
          currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
        }
      }
      if (!fieldBinding.isStatic()) {
        // https://bugs.eclipse.org/bugs/show_bug.cgi?id=318682
View Full Code Here
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
  public static FlowInfo markPassedToOutside(BlockScope scope, Expression expression, FlowInfo flowInfo, boolean owned) { 
   
    FakedTrackingVariable trackVar = getCloseTrackingVariable(expression);
    if (trackVar != null) {
      // insert info that the tracked resource *may* be closed (by the target method, i.e.)
      FlowInfo infoResourceIsClosed = owned ? flowInfo : flowInfo.copy();
      int flag = owned ? OWNED_BY_OUTSIDE : SHARED_WITH_OUTSIDE;
      do {
        trackVar.globalClosingState |= flag;
        if (scope.methodScope() != trackVar.methodScope)
          trackVar.globalClosingState |= CLOSED_IN_NESTED_METHOD;
        infoResourceIsClosed.markAsDefinitelyNonNull(trackVar.binding);
      } while ((trackVar = trackVar.innerTracker) != null);
      if (owned) {
        return infoResourceIsClosed; // don't let downstream signal any problems on this flow
      } else {
        return FlowInfo.conditional(flowInfo, infoResourceIsClosed); // only report potential problems on this flow
View Full Code Here
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
      }
      // check if final blank field
      if (lastFieldBinding.isBlankFinal()
            && this.otherBindings != null // the last field binding is only assigned
           && currentScope.needBlankFinalFieldInitializationCheck(lastFieldBinding)) {
        FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(lastFieldBinding.declaringClass.original(), flowInfo);
        if (!fieldInits.isDefinitelyAssigned(lastFieldBinding)) {
          currentScope.problemReporter().uninitializedBlankFinalField(lastFieldBinding, this);
        }
      }
      if (!lastFieldBinding.isStatic()) {
        currentScope.resetDeclaringClassMethodStaticFlag(lastFieldBinding.declaringClass);
      }
      break;
    case Binding.LOCAL :
      // first binding is a local variable
      LocalVariableBinding localBinding;
      if (!flowInfo
        .isDefinitelyAssigned(localBinding = (LocalVariableBinding) this.binding)) {
        currentScope.problemReporter().uninitializedLocalVariable(localBinding, this);
      }
      if ((flowInfo.tagBits & FlowInfo.UNREACHABLE) == 0)  {
        localBinding.useFlag = LocalVariableBinding.USED;
      } else if (localBinding.useFlag == LocalVariableBinding.UNUSED) {
        localBinding.useFlag = LocalVariableBinding.FAKE_USED;
      }
      if (needValue) {
        checkNPE(currentScope, flowContext, flowInfo, true);
      }
  }

  if (needValue) {
    manageEnclosingInstanceAccessIfNecessary(currentScope, flowInfo);
    // only for first binding
  }
  // all intermediate field accesses are read accesses
  if (this.otherBindings != null) {
    for (int i = 0; i < otherBindingsCount-1; i++) {
      lastFieldBinding = this.otherBindings[i];
      needValue = !this.otherBindings[i+1].isStatic();
      if (needValue || complyTo14) {
        manageSyntheticAccessIfNecessary(currentScope, lastFieldBinding, i + 1, flowInfo);
      }
    }
    lastFieldBinding = this.otherBindings[otherBindingsCount-1];
  }

  if (isCompound) {
    if (otherBindingsCount == 0
        && lastFieldBinding.isBlankFinal()
        && currentScope.needBlankFinalFieldInitializationCheck(lastFieldBinding)) {
      FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(lastFieldBinding.declaringClass, flowInfo);
      if (!fieldInits.isDefinitelyAssigned(lastFieldBinding)) {
        currentScope.problemReporter().uninitializedBlankFinalField(lastFieldBinding, this);
      }
    }
    manageSyntheticAccessIfNecessary(currentScope, lastFieldBinding, otherBindingsCount, flowInfo);
  }
View Full Code Here
186
187
188
189
190
191
192
193
194
195
196
197
      FieldBinding fieldBinding = (FieldBinding) this.binding;
      if (this.indexOfFirstFieldBinding == 1) { // was an implicit reference to the first field binding
        // check if reading a final blank field
        if (fieldBinding.isBlankFinal()
            && currentScope.needBlankFinalFieldInitializationCheck(fieldBinding)) {
          FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(fieldBinding.declaringClass.original(), flowInfo);
          if (!fieldInits.isDefinitelyAssigned(fieldBinding)) {
            currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
          }
        }
      }
      if (!fieldBinding.isStatic()) {
View Full Code Here
72
73
74
75
76
77
78
79
80
81
82
83
    switch (this.bits & ASTNode.RestrictiveFlagMASK) {
      case Binding.FIELD : // reading a field
        FieldBinding fieldBinding = (FieldBinding) this.binding;
        if (fieldBinding.isBlankFinal()
            && currentScope.needBlankFinalFieldInitializationCheck(fieldBinding)) {
          FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(fieldBinding.declaringClass.original(), flowInfo);
          if (!fieldInits.isDefinitelyAssigned(fieldBinding)) {
            currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
          }
        }
        manageSyntheticAccessIfNecessary(currentScope, flowInfo, true /*read-access*/);
        break;
 
View Full Code Here
180
181
182
183
184
185
186
187
188
189
190
191
        manageSyntheticAccessIfNecessary(currentScope, flowInfo, true /*read-access*/);
      }
      // check if reading a final blank field
      FieldBinding fieldBinding = (FieldBinding) this.binding;
      if (fieldBinding.isBlankFinal() && currentScope.needBlankFinalFieldInitializationCheck(fieldBinding)) {
        FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(fieldBinding.declaringClass.original(), flowInfo);
        if (!fieldInits.isDefinitelyAssigned(fieldBinding)) {
          currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
        }
      }
      break;
    case Binding.LOCAL : // reading a local variable
View Full Code Here
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
  public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, final FlowInfo flowInfo) {
   
    if (this.ignoreFurtherInvestigation)
      return flowInfo;
   
    FlowInfo lambdaInfo = flowInfo.copy(); // what happens in vegas, stays in vegas ...
    ExceptionHandlingFlowContext methodContext =
        new ExceptionHandlingFlowContext(
            flowContext,
            this,
            this.binding.thrownExceptions,
            null,
            this.scope,
            FlowInfo.DEAD_END);

    // nullity and mark as assigned
    MethodBinding methodWithParameterDeclaration = argumentsTypeElided() ? this.descriptor : this.binding;
    AbstractMethodDeclaration.analyseArguments18(lambdaInfo, this.arguments, methodWithParameterDeclaration);

    if (this.arguments != null) {
      for (int i = 0, count = this.arguments.length; i < count; i++) {
        this.bits |= (this.arguments[i].bits & ASTNode.HasTypeAnnotations);
      }
    }
   
    lambdaInfo = this.body.analyseCode(this.scope, methodContext, lambdaInfo);
   
    // check for missing returning path for block body's ...
    if (this.body instanceof Block) {
      TypeBinding returnTypeBinding = expectedResultType();
      if ((returnTypeBinding == TypeBinding.VOID)) {
        if ((lambdaInfo.tagBits & FlowInfo.UNREACHABLE_OR_DEAD) == 0 || ((Block) this.body).statements == null) {
          this.bits |= ASTNode.NeedFreeReturn;
        }
      } else {
        if (lambdaInfo != FlowInfo.DEAD_END) {
          this.scope.problemReporter().shouldReturn(returnTypeBinding, this);
        }
      }
    } else { // Expression
      if (currentScope.compilerOptions().isAnnotationBasedNullAnalysisEnabled
          && lambdaInfo.reachMode() == FlowInfo.REACHABLE)
      {
        Expression expression = (Expression)this.body;
        checkAgainstNullAnnotation(flowContext, expression, expression.nullStatus(lambdaInfo, flowContext));
      }
    }
View Full Code Here
73
74
75
76
77
78
79
80
81
82
83
84
  // compound assignment extra work
  if (isCompound) { // check the variable part is initialized if blank final
    if (this.binding.isBlankFinal()
      && this.receiver.isThis()
      && currentScope.needBlankFinalFieldInitializationCheck(this.binding)) {
      FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(this.binding.declaringClass.original(), flowInfo);
      if (!fieldInits.isDefinitelyAssigned(this.binding)) {
        currentScope.problemReporter().uninitializedBlankFinalField(this.binding, this);
        // we could improve error msg here telling "cannot use compound assignment on final blank field"
      }
    }
    manageSyntheticAccessIfNecessary(currentScope, flowInfo, true /*read-access*/);
 
View Full Code Here
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
      }
      // check if final blank field
      if (lastFieldBinding.isBlankFinal()
            && this.otherBindings != null // the last field binding is only assigned
           && currentScope.needBlankFinalFieldInitializationCheck(lastFieldBinding)) {
        FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(lastFieldBinding.declaringClass.original(), flowInfo);
        if (!fieldInits.isDefinitelyAssigned(lastFieldBinding)) {
          currentScope.problemReporter().uninitializedBlankFinalField(lastFieldBinding, this);
        }
      }
      break;
    case Binding.LOCAL :
      // first binding is a local variable
      LocalVariableBinding localBinding;
      if (!flowInfo
        .isDefinitelyAssigned(localBinding = (LocalVariableBinding) this.binding)) {
        currentScope.problemReporter().uninitializedLocalVariable(localBinding, this);
      }
      if ((flowInfo.tagBits & FlowInfo.UNREACHABLE) == 0)  {
        localBinding.useFlag = LocalVariableBinding.USED;
      } else if (localBinding.useFlag == LocalVariableBinding.UNUSED) {
        localBinding.useFlag = LocalVariableBinding.FAKE_USED;
      }
      if (needValue) {
        checkInternalNPE(currentScope, flowContext, flowInfo, true);
      }
  }

  if (needValue) {
    manageEnclosingInstanceAccessIfNecessary(currentScope, flowInfo);
    // only for first binding
  }
  // all intermediate field accesses are read accesses
  if (this.otherBindings != null) {
    for (int i = 0; i < otherBindingsCount-1; i++) {
      lastFieldBinding = this.otherBindings[i];
      needValue = !this.otherBindings[i+1].isStatic();
      if (needValue || complyTo14) {
        manageSyntheticAccessIfNecessary(currentScope, lastFieldBinding, i + 1, flowInfo);
      }
    }
    lastFieldBinding = this.otherBindings[otherBindingsCount-1];
  }

  if (isCompound) {
    if (otherBindingsCount == 0
        && lastFieldBinding.isBlankFinal()
        && currentScope.needBlankFinalFieldInitializationCheck(lastFieldBinding)) {
      FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(lastFieldBinding.declaringClass, flowInfo);
      if (!fieldInits.isDefinitelyAssigned(lastFieldBinding)) {
        currentScope.problemReporter().uninitializedBlankFinalField(lastFieldBinding, this);
      }
    }
    manageSyntheticAccessIfNecessary(currentScope, lastFieldBinding, otherBindingsCount, flowInfo);
  }
View Full Code Here
195
196
197
198
199
200
201
202
203
204
205
206
      FieldBinding fieldBinding = (FieldBinding) this.binding;
      if (this.indexOfFirstFieldBinding == 1) { // was an implicit reference to the first field binding
        // check if reading a final blank field
        if (fieldBinding.isBlankFinal()
            && currentScope.needBlankFinalFieldInitializationCheck(fieldBinding)) {
          FlowInfo fieldInits = flowContext.getInitsForFinalBlankInitializationCheck(fieldBinding.declaringClass.original(), flowInfo);
          if (!fieldInits.isDefinitelyAssigned(fieldBinding)) {
            currentScope.problemReporter().uninitializedBlankFinalField(fieldBinding, this);
          }
        }
      }
      break;
View Full Code Here
TOP

Related Classes of org.eclipse.jdt.internal.compiler.flow.FlowInfo

  • org.eclipse.jdt.internal.compiler.ast.CastExpression
  • org.eclipse.jdt.internal.compiler.ast.FakedTrackingVariable
  • org.eclipse.jdt.internal.compiler.ast.FieldReference
  • org.eclipse.jdt.internal.compiler.ast.ForeachStatement
  • org.eclipse.jdt.internal.compiler.ast.LambdaExpression
  • org.eclipse.jdt.internal.compiler.ast.MessageSend
  • org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference
  • org.eclipse.jdt.internal.compiler.ast.SingleNameReference
  • org.eclipse.jdt.internal.eval.CodeSnippetReturnStatement
  • org.eclipse.jdt.internal.eval.CodeSnippetSingleNameReference
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.