private bool TryMatchInternal(StatementCollection statements, int startIndex, out Statement result)
{
result = null;
if (statements.get_Count() < startIndex + 2)
{
return(false);
}
if (statements.get_Item(startIndex).get_CodeNodeType() != 5 || statements.get_Item(startIndex + 1).get_CodeNodeType() != 3)
{
return(false);
}
if (!String.IsNullOrEmpty(statements.get_Item(startIndex + 1).get_Label()))
{
return(false);
}
V_3 = (statements.get_Item(startIndex) as ExpressionStatement).get_Expression() as BinaryExpression;
if (!this.IsAssignToVariableExpression(V_3, out V_0))
{
return(false);
}
V_1 = V_3.get_Right();
V_4 = statements.get_Item(startIndex + 1) as IfStatement;
if (this.ContainsDummyAssignment(V_4.get_Then(), V_0))
{
stackVariable50 = 1;
}
else
{
stackVariable50 = 0;
}
V_5 = stackVariable50;
if (V_4.get_Else() != null || V_4.get_Then().get_Statements().get_Count() != 1 + V_5 || V_4.get_Then().get_Statements().get_Item(V_5).get_CodeNodeType() != 5 || !String.IsNullOrEmpty(V_4.get_Then().get_Statements().get_Item(V_5).get_Label()))
{
return(false);
}
V_6 = V_4.get_Condition() as BinaryExpression;
if (V_6 == null || V_6.get_Operator() != 9 || V_6.get_Left().get_CodeNodeType() != 26 || (object)(V_6.get_Left() as VariableReferenceExpression).get_Variable() != (object)V_0 || V_6.get_Right().get_CodeNodeType() != 22 || (V_6.get_Right() as LiteralExpression).get_Value() != null)
{
return(false);
}
V_7 = (V_4.get_Then().get_Statements().get_Item(V_5) as ExpressionStatement).get_Expression() as BinaryExpression;
if (V_7 == null || !this.IsAssignToVariableExpression(V_7, out V_8) || (object)V_8 != (object)V_0)
{
return(false);
}
V_2 = V_7.get_Right();
if (!V_1.get_HasType() || !V_2.get_HasType() || String.op_Inequality(V_1.get_ExpressionType().get_FullName(), V_2.get_ExpressionType().get_FullName()))
{
return(false);
}
V_9 = new BinaryExpression(27, V_1, V_2, this.typeSystem, null, false);
V_10 = new BinaryExpression(26, new VariableReferenceExpression(V_0, null), V_9, this.typeSystem, null, false);
stackVariable150 = new ExpressionStatement(V_10);
stackVariable150.set_Parent(statements.get_Item(startIndex).get_Parent());
result = stackVariable150;
this.FixContext(V_0.Resolve(), 1, V_5 + 1, result as ExpressionStatement);
return(true);
}
protected override void InlineInBlocks()
{
V_0 = this.methodContext.get_Expressions().get_BlockExpressions().GetEnumerator();
try
{
while (V_0.MoveNext())
{
V_1 = V_0.get_Current();
V_2 = V_1.get_Value();
V_3 = new Boolean[V_2.get_Count()];
V_4 = (int)this.methodContext.get_ControlFlowGraph().get_InstructionToBlockMapping().get_Item(V_1.get_Key()).get_Successors().Length > 1;
V_5 = V_2.get_Count() - 2;
V_6 = V_5 + 1;
while (V_5 >= 0)
{
V_7 = V_2.get_Item(V_5) as BinaryExpression;
if (V_7 == null || !V_7.get_IsAssignmentExpression() || V_7.get_Left().get_CodeNodeType() != 26)
{
V_6 = V_5;
}
else
{
V_8 = (V_7.get_Left() as VariableReferenceExpression).get_Variable().Resolve();
if (this.variablesToInline.Contains(V_8))
{
V_9 = V_7.get_Right();
if (this.IsEnumeratorGetCurrent(V_9) || this.IsQueryInvocation(V_9) || V_8.get_VariableType() != null && V_8.get_VariableType().get_IsPinned())
{
V_6 = V_5;
}
else
{
V_10 = new List <Instruction>(V_7.get_MappedInstructions());
V_10.AddRange(V_7.get_Left().get_UnderlyingSameMethodInstructions());
stackVariable78 = this.inliner;
stackVariable79 = V_8;
stackVariable82 = V_9.CloneAndAttachInstructions(V_10);
stackVariable85 = V_2.get_Item(V_6);
if (!V_4)
{
stackVariable87 = false;
}
else
{
stackVariable87 = V_6 + 1 == V_2.get_Count();
}
if (!stackVariable78.TryInlineVariable(stackVariable79, stackVariable82, stackVariable85, stackVariable87, out V_11))
{
V_6 = V_5;
}
else
{
V_2.set_Item(V_6, (Expression)V_11);
V_3[V_5] = true;
}
}
}
else
{
V_6 = V_5;
}
}
V_5 = V_5 - 1;
}
this.FastRemoveExpressions(V_2, V_3);
}
}
finally
{
((IDisposable)V_0).Dispose();
}
return;
}