public static bool TryMatch(BlockStatement filter, out VariableDeclarationExpression variableDeclaration, out Expression filterExpression)
{
variableDeclaration = null;
filterExpression = null;
if (!CatchClausesFilterPattern.TryMatchVariableDeclaration(filter, out variableDeclaration))
{
return(false);
}
if (filter.get_Statements().get_Count() != 3)
{
return(false);
}
V_0 = filter.get_Statements().get_Item(1) as IfStatement;
if (V_0 == null)
{
return(false);
}
V_1 = null;
V_2 = null;
if ((V_0.get_Condition() as BinaryExpression).get_Operator() != 10)
{
V_1 = V_0.get_Else();
V_2 = V_0.get_Then();
}
else
{
V_1 = V_0.get_Then();
V_2 = V_0.get_Else();
}
V_3 = null;
V_4 = null;
if (V_1.get_Statements().get_Count() != 1 && V_1.get_Statements().get_Count() != 2 && V_1.get_Statements().get_Count() != 3 || V_2.get_Statements().get_Count() != 1)
{
return(false);
}
if (V_1.get_Statements().get_Count() != 2)
{
if (V_1.get_Statements().get_Count() == 3)
{
V_8 = V_1.get_Statements().get_Item(0) as ExpressionStatement;
V_9 = V_1.get_Statements().get_Item(1) as ExpressionStatement;
if (V_8 == null || V_9 == null)
{
return(false);
}
if (V_8.get_Expression().get_CodeNodeType() != 24 || V_9.get_Expression().get_CodeNodeType() != 19)
{
if (V_8.get_Expression().get_CodeNodeType() != 19 || V_9.get_Expression().get_CodeNodeType() != 24)
{
return(false);
}
V_4 = V_8;
V_3 = V_9;
}
else
{
V_3 = V_8;
V_4 = V_9;
}
}
}
else
{
V_7 = V_1.get_Statements().get_Item(0) as ExpressionStatement;
if (V_7 == null)
{
return(false);
}
if (V_7.get_Expression().get_CodeNodeType() != 24)
{
if (V_7.get_Expression().get_CodeNodeType() != 19)
{
return(false);
}
V_4 = V_7;
}
else
{
V_3 = V_7;
}
}
if (V_3 != null)
{
V_10 = V_3.get_Expression() as BinaryExpression;
if (V_10 == null || !V_10.get_IsAssignmentExpression() || String.op_Inequality(V_10.get_ExpressionType().get_FullName(), variableDeclaration.get_ExpressionType().get_FullName()))
{
return(false);
}
stackVariable98 = V_10.get_Left() as VariableReferenceExpression;
V_11 = V_10.get_Right() as VariableReferenceExpression;
if (stackVariable98 == null || V_11 == null)
{
return(false);
}
}
if (V_4 != null)
{
V_12 = V_4.get_Expression() as MethodInvocationExpression;
if (V_12 == null || String.op_Inequality(V_12.get_MethodExpression().get_Method().get_FullName(), "System.Void Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(System.Exception)"))
{
return(false);
}
}
V_5 = filter.get_Statements().get_Item(2) as ExpressionStatement;
if (V_5 == null)
{
return(false);
}
V_6 = V_5.get_Expression() as VariableReferenceExpression;
if (V_6 == null)
{
return(false);
}
if (!CatchClausesFilterPattern.TryMatchFilterExpression(V_0, variableDeclaration.get_Variable().get_VariableType(), V_6, out filterExpression))
{
return(false);
}
return(true);
}
public void CleanUpUnusedDeclarations()
{
V_1 = this.referenceToDeclarationStatementMap.GetEnumerator();
try
{
while (V_1.MoveNext())
{
V_2 = V_1.get_Current();
V_3 = V_2.get_Key();
this.context.get_MethodContext().RemoveVariable(V_3);
V_4 = V_2.get_Value();
V_5 = V_4.get_Parent() as BlockStatement;
if (!this.IsOptimisableAssignment(V_4))
{
V_6 = (V_4.get_Expression() as BinaryExpression).get_Right();
if (!this.CanExistInStatement(V_6))
{
continue;
}
if (V_6.get_CodeNodeType() == 87)
{
V_6 = (V_6 as ParenthesesExpression).get_Expression();
}
V_7 = new ExpressionStatement(V_6);
V_8 = V_5.get_Statements().IndexOf(V_4);
V_5.AddStatementAt(V_8 + 1, V_7);
this.TransferLabel(V_4);
V_5.get_Statements().RemoveAt(V_8);
}
else
{
this.TransferLabel(V_4);
dummyVar0 = V_5.get_Statements().Remove(V_4);
}
}
}
finally
{
((IDisposable)V_1).Dispose();
}
V_0 = new HashSet <VariableDefinition>();
V_9 = this.context.get_MethodContext().get_Variables().GetEnumerator();
try
{
while (V_9.MoveNext())
{
V_10 = V_9.get_Current();
if (this.bannedVariables.Contains(V_10))
{
continue;
}
dummyVar1 = V_0.Add(V_10);
}
}
finally
{
V_9.Dispose();
}
V_11 = V_0.GetEnumerator();
try
{
while (V_11.MoveNext())
{
V_12 = V_11.get_Current();
this.context.get_MethodContext().RemoveVariable(V_12);
}
}
finally
{
((IDisposable)V_11).Dispose();
}
return;
}
private void ProcessBlock(BlockStatement node)
{
V_0 = 0;
while (V_0 < node.get_Statements().get_Count() - 1)
{
V_1 = null;
V_2 = new List <VariableReference>();
V_3 = node.get_Statements().get_Item(V_0);
V_1 = this.GetFixedStatement(V_3, V_2);
if (V_1 != null)
{
V_7 = V_2.GetEnumerator();
try
{
while (V_7.MoveNext())
{
V_8 = V_7.get_Current();
this.methodContext.RemoveVariable(V_8);
}
}
finally
{
((IDisposable)V_7).Dispose();
}
node.get_Statements().RemoveAt(V_0);
node.AddStatementAt(V_0, V_1);
V_4 = node.get_Statements().get_Item(V_0 + 1) as ExpressionStatement;
V_5 = node.get_Statements().get_Count();
V_6 = null;
stackVariable47 = new RebuildFixedStatements.VariableReferenceVisitor();
stackVariable47.Visit(V_1.get_Expression());
V_6 = stackVariable47.get_Variable();
V_9 = V_0 + 1;
while (V_9 < V_5)
{
stackVariable56 = new RebuildFixedStatements.VariableReferenceVisitor();
stackVariable56.Visit(node.get_Statements().get_Item(V_9));
V_10 = stackVariable56.get_Variable();
if (V_10 != null && !this.variables.Contains(V_10))
{
this.variables.Add(V_10);
}
if (node.get_Statements().get_Item(V_9).get_CodeNodeType() == 5)
{
V_4 = node.get_Statements().get_Item(V_9) as ExpressionStatement;
if (V_10 != null && (object)V_10 == (object)V_6 && V_4.get_Expression().get_CodeNodeType() == 24 && (V_4.get_Expression() as BinaryExpression).get_IsAssignmentExpression() && (V_4.get_Expression() as BinaryExpression).get_Right().get_CodeNodeType() == 22 && ((V_4.get_Expression() as BinaryExpression).get_Right() as LiteralExpression).get_Value() == null)
{
node.get_Statements().RemoveAt(V_9);
V_9 = V_9 - 1;
V_5 = V_5 - 1;
break;
}
}
V_1.get_Body().AddStatement(node.get_Statements().get_Item(V_9));
node.get_Statements().RemoveAt(V_9);
V_9 = V_9 - 1;
V_5 = V_5 - 1;
V_9 = V_9 + 1;
}
this.ProcessBlock(V_1.get_Body());
return;
}
V_0 = V_0 + 1;
}
return;
}