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;
}