protected bool TryGetAssignedVariable(ExpressionStatement node, out VariableReference variable)
{
variable = null;
V_1 = node.get_Expression() as BinaryExpression;
if (V_1 != null && !V_1.get_IsAssignmentExpression())
{
V_1 = null;
}
if (V_1 != null)
{
V_0 = V_1.get_Left();
}
else
{
V_2 = node.get_Expression() as UnaryExpression;
if (V_2 == null || V_2.get_Operator() != 3 && V_2.get_Operator() != 4 && V_2.get_Operator() != 5 && V_2.get_Operator() != 6)
{
return(false);
}
V_0 = V_2.get_Operand();
}
if (V_0.get_CodeNodeType() != 27)
{
if (V_0.get_CodeNodeType() == 26)
{
variable = ((VariableReferenceExpression)V_0).get_Variable();
}
}
else
{
variable = ((VariableDeclarationExpression)V_0).get_Variable();
}
return((object)variable != (object)null);
}
public override void VisitExpressionStatement(ExpressionStatement node)
{
V_0 = null;
if (node.get_Expression().get_CodeNodeType() == 24 && (node.get_Expression() as BinaryExpression).get_IsAssignmentExpression())
{
V_1 = (node.get_Expression() as BinaryExpression).get_Left();
if (V_1.get_CodeNodeType() != 26)
{
if (V_1.get_CodeNodeType() == 27)
{
V_0 = (V_1 as VariableDeclarationExpression).get_Variable();
}
}
else
{
V_0 = (V_1 as VariableReferenceExpression).get_Variable();
}
}
if (V_0 == null || node.get_Parent().get_CodeNodeType() != CodeNodeType.BlockStatement || this.bannedVariables.Contains(V_0))
{
this.Visit(node.get_Expression());
return;
}
if (this.referenceToDeclarationStatementMap.Remove(V_0))
{
dummyVar0 = this.bannedVariables.Add(V_0);
}
else
{
this.referenceToDeclarationStatementMap.set_Item(V_0, node);
}
this.Visit((node.get_Expression() as BinaryExpression).get_Right());
return;
}
private void VisitAssignExpression(ExpressionStatement expressionStatement)
{
if (expressionStatement.get_Expression().get_CodeNodeType() != 24 || !(expressionStatement.get_Expression() as BinaryExpression).get_IsAssignmentExpression())
{
return;
}
V_0 = (BinaryExpression)expressionStatement.get_Expression();
this.expression = V_0;
this.VisitVariableReference(V_0);
return;
}
public override void VisitExpressionStatement(ExpressionStatement node)
{
if (!node.IsAssignmentStatement())
{
return;
}
V_0 = node.get_Expression() as BinaryExpression;
if (V_0.get_Left().get_CodeNodeType() != 26 || V_0.get_Right().get_CodeNodeType() != 30)
{
return;
}
V_1 = V_0.get_Right() as FieldReferenceExpression;
if (V_1.get_Target() == null || V_1.get_Target().get_CodeNodeType() != 30 || String.op_Inequality(V_1.get_Field().get_Name(), "Target"))
{
return;
}
V_2 = (V_1.get_Target() as FieldReferenceExpression).get_Field().Resolve();
if (V_2 == null || !this.fieldToCallSiteInfoMap.TryGetValue(V_2, out V_3))
{
return;
}
this.variableToCallSiteInfoMap.Add((V_0.get_Left() as VariableReferenceExpression).get_Variable(), V_3);
dummyVar0 = this.statementsToRemove.Add(node);
return;
}
public override void VisitExpressionStatement(ExpressionStatement node)
{
if (node.get_Expression() as BinaryExpression != null)
{
V_0 = node.get_Expression() as BinaryExpression;
if (V_0.get_Operator() == 26 && V_0.get_Left() as VariableReferenceExpression != null && V_0.get_Right() as VariableReferenceExpression != null)
{
stackVariable18 = (V_0.get_Left() as VariableReferenceExpression).get_Variable();
V_1 = (V_0.get_Right() as VariableReferenceExpression).get_Variable();
if ((object)stackVariable18 == (object)V_1)
{
this.statementsToRemove.Add(node);
}
}
}
return;
}
private MethodInvocationExpression GetBinderMethodInvocation(ExpressionStatement callSiteCreationStatement, FieldDefinition callSiteField)
{
if (callSiteCreationStatement == null || callSiteCreationStatement.get_Expression().get_CodeNodeType() != 24 || (callSiteCreationStatement.get_Expression() as BinaryExpression).get_Operator() != 26 || (callSiteCreationStatement.get_Expression() as BinaryExpression).get_Left().get_CodeNodeType() != 30 || (object)((callSiteCreationStatement.get_Expression() as BinaryExpression).get_Left() as FieldReferenceExpression).get_Field().Resolve() != (object)callSiteField)
{
throw new Exception("Last statement is not CallSite field assignment.");
}
V_0 = (callSiteCreationStatement.get_Expression() as BinaryExpression).get_Right() as MethodInvocationExpression;
if (String.op_Inequality(V_0.get_MethodExpression().get_Method().get_DeclaringType().GetElementType().GetFriendlyFullName(null), "System.Runtime.CompilerServices.CallSite<!0>") || V_0.get_MethodExpression().get_Target() != null || String.op_Inequality(V_0.get_MethodExpression().get_Method().get_Name(), "Create") || V_0.get_Arguments().get_Item(0).get_CodeNodeType() != 19)
{
throw new Exception("Invalid CallSite field assignment.");
}
V_1 = V_0.get_Arguments().get_Item(0) as MethodInvocationExpression;
if (V_1.get_MethodExpression().get_Target() != null || String.op_Inequality(V_1.get_MethodExpression().get_Method().get_DeclaringType().GetFriendlyFullName(null), "Microsoft.CSharp.RuntimeBinder.Binder"))
{
throw new Exception("Invalid CallSite creation argument.");
}
return(V_1);
}
public override void VisitExpressionStatement(ExpressionStatement node)
{
if (!node.IsAssignmentStatement() || !this.CheckBinaryExpression(node.get_Expression() as BinaryExpression))
{
this.VisitExpressionStatement(node);
return;
}
dummyVar0 = this.statementsToRemove.Add(node);
return;
}
private bool CheckAssignExpression(ExpressionStatement theStatement)
{
if (theStatement == null || theStatement.get_Expression().get_CodeNodeType() != 24)
{
return(false);
}
V_0 = theStatement.get_Expression() as BinaryExpression;
if (!V_0.get_IsAssignmentExpression())
{
return(false);
}
V_1 = this.state;
if (V_1 == RebuildAnonymousDelegatesStep.AnonymousDelegateRebuilder.State.DelegateCreate)
{
return(this.CheckDelegateCreation(V_0));
}
if (V_1 != 1)
{
return(false);
}
return(this.CheckFieldAssignment(V_0, theStatement));
}
public override ICodeNode VisitExpressionStatement(ExpressionStatement node)
{
node.set_Expression((Expression)this.Visit(node.get_Expression()));
if (node.get_Expression() != null)
{
return(node);
}
if (node.get_Label() != null && String.op_Inequality(node.get_Label(), String.Empty))
{
V_0 = node.GetNextStatement();
if (V_0 == null || V_0.get_Label() != null && String.op_Inequality(V_0.get_Label(), String.Empty))
{
stackVariable19 = new EmptyStatement();
stackVariable19.set_Label(node.get_Label());
V_1 = stackVariable19;
this.methodContext.get_GotoLabels().set_Item(node.get_Label(), V_1);
return(V_1);
}
V_0.set_Label(node.get_Label());
this.methodContext.get_GotoLabels().set_Item(node.get_Label(), V_0);
}
return(null);
}
public override void VisitExpressionStatement(ExpressionStatement node)
{
if (node.IsAssignmentStatement() && node.get_Parent().get_CodeNodeType() == CodeNodeType.BlockStatement)
{
V_0 = node.get_Expression() as BinaryExpression;
if (V_0.get_Left().get_CodeNodeType() == 26)
{
this.Visit(V_0.get_Right());
this.AddDefinition((V_0.get_Left() as VariableReferenceExpression).get_Variable().Resolve(), node);
return;
}
}
this.VisitExpressionStatement(node);
return;
}
public override ICodeNode VisitExpressionStatement(ExpressionStatement node)
{
if (node.IsAssignmentStatement())
{
V_0 = node.get_Expression() as BinaryExpression;
if (V_0.get_Left().get_CodeNodeType() == 26 && V_0.get_Right().get_CodeNodeType() == 30)
{
V_1 = (V_0.get_Right() as FieldReferenceExpression).get_Field().Resolve();
if (V_1 != null && this.fieldToCallSiteInfoMap.ContainsKey(V_1))
{
return(null);
}
}
}
return(this.VisitExpressionStatement(node));
}
private bool IsFieldAssignment(ExpressionStatement fieldAssignmentStatement, out Expression assignedValue, out string fieldFullName)
{
fieldFullName = null;
assignedValue = null;
V_0 = fieldAssignmentStatement.get_Expression() as BinaryExpression;
if (V_0 == null || !V_0.get_IsAssignmentExpression() || V_0.get_Left().get_CodeNodeType() != 30)
{
return(false);
}
V_1 = (V_0.get_Left() as FieldReferenceExpression).get_Field();
if (V_1 == null)
{
return(false);
}
assignedValue = V_0.get_Right();
fieldFullName = V_1.get_FullName();
return(true);
}
private bool IsAutoPropertyAssignment(ExpressionStatement propertyAssignmentStatement, out Expression assignedValue, out string propertyFullName)
{
propertyFullName = null;
assignedValue = null;
V_0 = propertyAssignmentStatement.get_Expression() as BinaryExpression;
if (V_0 == null || !V_0.get_IsAssignmentExpression() || V_0.get_Left().get_CodeNodeType() != 91)
{
return(false);
}
V_1 = (V_0.get_Left() as AutoPropertyConstructorInitializerExpression).get_Property();
if (V_1 == null)
{
return(false);
}
assignedValue = V_0.get_Right();
propertyFullName = V_1.get_FullName();
return(true);
}
private static bool TryGetVariableDeclaration(ExpressionStatement statement, VariableReferenceExpression variableReference, ref VariableDefinition variableDefinition, ref IEnumerable <Instruction> instructions)
{
if (statement != null)
{
V_0 = statement.get_Expression() as BinaryExpression;
if (V_0 != null && V_0.get_IsAssignmentExpression())
{
V_1 = V_0.get_Left() as VariableReferenceExpression;
V_2 = V_0.get_Right() as VariableReferenceExpression;
if (V_1 != null && V_2 != null && V_2.Equals(variableReference))
{
variableDefinition = V_1.get_Variable().Resolve();
instructions = V_1.get_MappedInstructions();
return(true);
}
}
}
return(false);
}
public bool IsOptimisableAssignment(ExpressionStatement statement)
{
V_0 = statement.get_Expression() as BinaryExpression;
if (V_0 == null)
{
return(false);
}
if (!V_0.get_IsAssignmentExpression())
{
return(false);
}
if (V_0.get_Right().get_CodeNodeType() == 24 && (V_0.get_Right() as BinaryExpression).get_IsAssignmentExpression() || (V_0.get_Right() as BinaryExpression).get_IsSelfAssign())
{
return(false);
}
if (V_0.get_Left() as VariableReferenceExpression == null && V_0.get_Left() as VariableDeclarationExpression == null)
{
return(false);
}
return(!(new SideEffectsFinder()).HasSideEffectsRecursive(V_0.get_Right()));
}
public override ICodeNode VisitExpressionStatement(ExpressionStatement node)
{
V_0 = (Expression)this.Visit(node.get_Expression());
if (V_0 != null)
{
node.set_Expression(V_0);
return(node);
}
if (!String.IsNullOrEmpty(node.get_Label()))
{
V_1 = node.GetNextStatement();
if (V_1 == null || !String.IsNullOrEmpty(V_1.get_Label()))
{
stackVariable16 = new EmptyStatement();
stackVariable16.set_Label(node.get_Label());
return(stackVariable16);
}
V_1.set_Label(node.get_Label());
}
return(null);
}
private bool CheckVariableInitialization(ExpressionStatement node)
{
if (!node.IsAssignmentStatement())
{
return(false);
}
V_0 = node.get_Expression() as BinaryExpression;
if (V_0.get_Left().get_CodeNodeType() != 26)
{
return(false);
}
V_1 = V_0.get_Right();
if (V_1.get_CodeNodeType() == 31)
{
V_1 = (V_1 as ExplicitCastExpression).get_Expression();
}
if (V_1.get_CodeNodeType() != 22 || (V_1 as LiteralExpression).get_Value() != null && V_1.get_CodeNodeType() != 30)
{
return(false);
}
if (V_1.get_CodeNodeType() == 30)
{
V_2 = V_1 as FieldReferenceExpression;
V_3 = V_2.get_ExpressionType().Resolve();
if (V_3 == null || V_3.get_BaseType() == null || String.op_Inequality(V_3.get_BaseType().get_FullName(), "System.MulticastDelegate"))
{
return(false);
}
V_4 = V_2.get_Field().Resolve();
if ((object)V_4.get_DeclaringType() != (object)this.context.get_MethodContext().get_Method().get_DeclaringType() && !V_4.get_DeclaringType().IsNestedIn(this.context.get_MethodContext().get_Method().get_DeclaringType()) || !V_4.get_DeclaringType().IsCompilerGenerated())
{
return(false);
}
}
this.initializationsToRemove.set_Item((V_0.get_Left() as VariableReferenceExpression).get_Variable(), node);
return(true);
}
public virtual void VisitExpressionStatement(ExpressionStatement node)
{
this.Visit(node.get_Expression());
return;
}
public override void VisitExpressionStatement(ExpressionStatement node)
{
this.Visit(node.get_Expression());
return;
}
public virtual ICodeNode VisitExpressionStatement(ExpressionStatement node)
{
node.set_Expression((Expression)this.Visit(node.get_Expression()));
return(node);
}
