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);
}
private static bool TryMatchVariableDeclaration(BlockStatement filter, out VariableDeclarationExpression variableDeclaration)
{
variableDeclaration = null;
V_0 = filter.get_Statements().get_Item(0) as ExpressionStatement;
if (V_0 == null)
{
return(false);
}
V_1 = V_0.get_Expression() as BinaryExpression;
if (V_1 == null || !V_1.get_IsAssignmentExpression())
{
return(false);
}
V_2 = V_1.get_Left() as VariableReferenceExpression;
if (V_2 == null)
{
return(false);
}
if (V_1.get_Right() as SafeCastExpression == null)
{
return(false);
}
V_3 = filter.get_Statements().get_Item(1) as IfStatement;
if (V_3 == null)
{
return(false);
}
V_4 = V_3.get_Condition() as BinaryExpression;
if (V_4 == null)
{
return(false);
}
V_5 = V_4.get_Left() as VariableReferenceExpression;
if (V_5 == null)
{
return(false);
}
V_6 = V_4.get_Right() as LiteralExpression;
if (V_6 == null)
{
return(false);
}
if (!V_5.Equals(V_2) || V_6.get_Value() != null || V_4.get_Operator() != 9 && V_4.get_Operator() != 10)
{
return(false);
}
V_7 = V_2.get_Variable().Resolve();
V_8 = V_2.get_MappedInstructions();
if (V_4.get_Operator() != 10)
{
V_9 = V_3.get_Else();
}
else
{
V_9 = V_3.get_Then();
}
if (!CatchClausesFilterPattern.TryGetVariableDeclaration(V_9.get_Statements().get_Item(0) as ExpressionStatement, V_2, ref V_7, ref V_8) && V_9.get_Statements().get_Count() >= 2)
{
dummyVar0 = CatchClausesFilterPattern.TryGetVariableDeclaration(V_9.get_Statements().get_Item(1) as ExpressionStatement, V_2, ref V_7, ref V_8);
}
variableDeclaration = new VariableDeclarationExpression(V_7, V_8);
return(true);
}
