public static void AddVariableDeclaration(Type type, string name, CodeStatementCollection statements)
{
for (int i = 0; i < statements.Count; i++)
{
CodeVariableDeclarationStatement vd = statements[i] as CodeVariableDeclarationStatement;
if (vd != null)
{
if (vd.Name == name)
{
return;
}
}
}
CodeVariableDeclarationStatement p;
if (type.IsValueType)
{
p = new CodeVariableDeclarationStatement(type, name);
}
else
{
p = new CodeVariableDeclarationStatement(type, name, ObjectCreationCodeGen.GetDefaultValueExpression(type));
}
statements.Insert(0, p);
}
public static CodeExpression ConvertToBool(Type t, CodeExpression ce)
{
if (t.Equals(typeof(bool)))
{
return(ce);
}
if (t.Equals(typeof(string)))
{
CodeBinaryOperatorExpression ret = new CodeBinaryOperatorExpression();
ret.Operator = CodeBinaryOperatorType.BooleanOr;
CodeBinaryOperatorExpression b = new CodeBinaryOperatorExpression();
b.Operator = CodeBinaryOperatorType.IdentityEquality;
b.Right = new CodePrimitiveExpression(0);
CodeMethodInvokeExpression mi = new CodeMethodInvokeExpression(new CodeMethodReferenceExpression(new CodeTypeReferenceExpression(typeof(string)), "Compare"),
ce, new CodePrimitiveExpression("true"), new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(typeof(StringComparison)), "OrdinalIgnoreCase"));
b.Left = mi;
ret.Left = b;
//
b = new CodeBinaryOperatorExpression();
b.Operator = CodeBinaryOperatorType.IdentityEquality;
b.Right = new CodePrimitiveExpression(0);
mi = new CodeMethodInvokeExpression(new CodeMethodReferenceExpression(new CodeTypeReferenceExpression(typeof(string)), "Compare"),
ce, new CodePrimitiveExpression("on"), new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(typeof(StringComparison)), "OrdinalIgnoreCase"));
b.Left = mi;
ret.Right = b;
return(ret);
}
if (typeof(object).Equals(t) || typeof(byte).Equals(t) ||
typeof(char).Equals(t) || typeof(DateTime).Equals(t) ||
typeof(decimal).Equals(t) || typeof(double).Equals(t) ||
typeof(float).Equals(t) || typeof(int).Equals(t) ||
typeof(long).Equals(t) || typeof(sbyte).Equals(t) ||
typeof(short).Equals(t) || typeof(uint).Equals(t) ||
typeof(ulong).Equals(t) || typeof(ushort).Equals(t)
)
{
CodeMethodInvokeExpression mie = new CodeMethodInvokeExpression();
mie.Method = new CodeMethodReferenceExpression(new CodeTypeReferenceExpression(typeof(Convert)), "ToBoolean");
mie.Parameters.Add(ce);
if (IsPrimaryExp(ce))
{
return(mie);
}
CodeBinaryOperatorExpression bo = new CodeBinaryOperatorExpression();
bo.Operator = CodeBinaryOperatorType.BooleanAnd;
bo.Left = new CodeBinaryOperatorExpression(ce, CodeBinaryOperatorType.IdentityInequality, new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(typeof(DBNull)), "Value"));
bo.Right = mie;
return(bo);
}
CodeExpression def = ObjectCreationCodeGen.GetDefaultValueExpression(t);
return(new CodeBinaryOperatorExpression(ce, CodeBinaryOperatorType.IdentityInequality, def));
}
public static CodeVariableDeclarationStatement CreateVariableDeclaration(CodeTypeReference type, string name, Type t, object init)
{
CodeVariableDeclarationStatement p;
if (init == null)
{
p = new CodeVariableDeclarationStatement(type, name, ObjectCreationCodeGen.GetDefaultValueExpression(t));
}
else
{
p = new CodeVariableDeclarationStatement(type, name, ObjectCreationCodeGen.ObjectCreationCode(init));
}
return(p);
}
