internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Expression orginal = ExpressionMembers.GetMethodCall(type.GetGenericArguments()[0], Expression.MakeMemberAccess(instanceArg, type.GetProperty("Value")));
return(Expression.IfThenElse(
Expression.Equal(instanceArg, Expression.Constant(null, type)),
ExpressionMembers.Append("null")
,
//para.value
orginal
));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Type arrayItemType = type.GetElementType() ?? type.GetGenericArguments()[0];
List <Expression> methodCall = new List <Expression>();
if (!type.IsValueType)
{
ConditionalExpression ifNullAppendNull = Expression.IfThen(
Expression.Equal(instanceArg, Expression.Constant(null, type)),
Expression.Block(ExpressionMembers.Append("null"),
Expression.Return(ExpressionMembers.ReturnLable)
));
methodCall.Add(ifNullAppendNull);
}
methodCall.Add(ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.Array));
methodCall.Add(ExpressionMembers.Append("["));
ParameterExpression isFirst = Expression.Variable(typeof(bool), "isFirst");
Type iListType = typeof(IList <>).MakeGenericType(arrayItemType);
ParameterExpression iList = Expression.Variable(iListType);
methodCall.Add(Expression.Assign(iList, Expression.Convert(instanceArg, iListType)));
ParameterExpression forVariable = Expression.Variable(typeof(int));
//Expression forExpression = ExpressionHelper.For(forVariable, Expression.LessThan(forVariable, Expression.MakeMemberAccess(instanceArg, type.IsArray ? type.GetProperty("Length") : type.GetProperty("Count"))), Expression.PostIncrementAssign(forVariable), Expression.Block(new[] { isFirst },
// Expression.IfThenElse(
// Expression.IsFalse(isFirst),
// Expression.Assign(isFirst, Expression.Constant(true)),
// ExpressionMembers.Append(",")
// ),
// ExpressionMembers.GetMethodCall(arrayItemType, type.IsArray ? Expression.ArrayAccess(instanceArg, forVariable) : Expression.MakeIndex(instanceArg, type.GetProperty("Item"), new[] { forVariable }))
// ));
Expression forExpression = ExpressionHelper.For(forVariable, Expression.LessThan(forVariable, Expression.MakeMemberAccess(instanceArg, type.IsArray ? type.GetProperty("Length") : type.GetProperty("Count"))), Expression.PostIncrementAssign(forVariable), Expression.Block(new[] { isFirst },
Expression.IfThenElse(
Expression.IsFalse(isFirst),
Expression.Assign(isFirst, Expression.Constant(true)),
ExpressionMembers.Append(",")
),
ExpressionMembers.GetMethodCall(arrayItemType, Expression.MakeIndex(iList, iListType.GetProperty("Item"), new[] { forVariable }))
));
methodCall.Add(forExpression);
methodCall.Add(ExpressionMembers.Append("]"));
methodCall.Add(ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop);
methodCall.Add(Expression.Label(ExpressionMembers.ReturnLable));
return(Expression.Block(new[] { iList }, methodCall));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Type keyType = type.GetGenericArguments()[0];
Type valueType = type.GetGenericArguments()[1];
List <Expression> methodCall = new List <Expression>();
if (!type.IsValueType)
{
ConditionalExpression ifNullAppendNull = Expression.IfThen(
Expression.Equal(instanceArg, Expression.Constant(null, type)),
Expression.Block(ExpressionMembers.Append("null"),
Expression.Return(ExpressionMembers.ReturnLable)
));
methodCall.Add(ifNullAppendNull);
}
methodCall.Add(ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.Dictionary));
methodCall.Add(ExpressionMembers.Append("{"));
ParameterExpression isFirst = Expression.Variable(typeof(bool), "isFirst");
Expression foreachs = ExpressionHelper.ForEach(instanceArg, Expression.Parameter(typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType), "loopVar"),
item =>
{
List <Expression> calls = new List <Expression>
{
Expression.IfThenElse(
Expression.IsFalse(isFirst),
Expression.Assign(isFirst, Expression.Constant(true)),
ExpressionMembers.Append(",")
)
};
MemberExpression key = Expression.MakeMemberAccess(item, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Key"));
MemberExpression value = Expression.MakeMemberAccess(item, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Value"));
calls.Add(ExpressionMembers.WriteKeyValuePairKey(keyType, key));
calls.Add(ExpressionMembers.GetMethodCall(valueType, value));
return(Expression.Block(new[] { isFirst }, calls));
}
);
methodCall.Add(foreachs);
methodCall.Add(ExpressionMembers.Append("}"));
methodCall.Add(ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop);
methodCall.Add(Expression.Label(ExpressionMembers.ReturnLable));
return(Expression.Block(methodCall));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Type arrayItemType = type.GetElementType();
if (arrayItemType == null)
{
Type[] genericArguments = type.GetGenericArguments();
if (genericArguments.Length == 0)
{
arrayItemType = type.GetInterface("IEnumerable`1").GetGenericArguments()[0];
}
else
{
arrayItemType = genericArguments[0];
}
}
List <Expression> methodCall = new List <Expression>();
if (!type.IsValueType)
{
ConditionalExpression ifNullAppendNull = Expression.IfThen(
Expression.Equal(instanceArg, Expression.Constant(null, type)),
Expression.Block(ExpressionMembers.Append("null"),
Expression.Return(ExpressionMembers.ReturnLable)
));
methodCall.Add(ifNullAppendNull);
}
methodCall.Add(ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.Array));
methodCall.Add(ExpressionMembers.Append("["));
ParameterExpression isFirst = Expression.Variable(typeof(bool), "isFirst");
Expression foreachs = ExpressionHelper.ForEach(instanceArg, Expression.Parameter(arrayItemType, "loopVar"),
item => Expression.Block(new[] { isFirst },
Expression.IfThenElse(
Expression.IsFalse(isFirst),
Expression.Assign(isFirst, Expression.Constant(true)),
ExpressionMembers.Append(",")
),
ExpressionMembers.GetMethodCall(arrayItemType, item)
));
methodCall.Add(foreachs);
methodCall.Add(ExpressionMembers.Append("]"));
methodCall.Add(ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop);
methodCall.Add(Expression.Label(ExpressionMembers.ReturnLable));
return(Expression.Block(methodCall));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
List <Expression> expressions = new List <Expression>();
if (!type.IsValueType)
{
expressions.Add(Expression.IfThen(
Expression.Equal(instanceArg, Expression.Constant(null, type)),
Expression.Block(ExpressionMembers.Append("null"),
Expression.Return(ExpressionMembers.ReturnLable)
)));
}
expressions.Add(ExpressionMembers.Append("{}"));
expressions.Add(Expression.Label(ExpressionMembers.ReturnLable));
return(Expression.Block(expressions));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
Type keyType = type.GetGenericArguments()[0];
Type valueType = type.GetGenericArguments()[1];
Expression[] methodCall = new Expression[7];
methodCall[0] = ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.Dictionary);
methodCall[1] = ExpressionMembers.Append("{");
MemberExpression key = Expression.MakeMemberAccess(instanceArg, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Key"));
MemberExpression value = Expression.MakeMemberAccess(instanceArg, typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType).GetProperty("Value"));
methodCall[2] = ExpressionMembers.WriteKeyValuePairKey(keyType, key);
methodCall[3] = ExpressionMembers.GetMethodCall(valueType, value);
methodCall[4] = ExpressionMembers.Append("}");
methodCall[5] = ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop;
methodCall[6] = Expression.Label(ExpressionMembers.ReturnLable);
return(Expression.Block(methodCall));
}
internal static Expression Build(Type type, ParameterExpression instanceArg)
{
List <Expression> methodCall = new List <Expression>();
if (!type.IsValueType)
{
ConditionalExpression ifParaIsNullAppendNull = Expression.IfThen(Expression.Equal(instanceArg, Expression.Constant(null, type)),
Expression.Block(
ExpressionMembers.Append("null"),
Expression.Return(ExpressionMembers.ReturnLable)
));
methodCall.Add(ifParaIsNullAppendNull);//add
Expression isIgnoreSelfRefernceModule = ExpressionMembers.IsIgnoreSelfRefernce(instanceArg, ExpressionMembers.RefernceByEmptyType.CustomType);
methodCall.Add(isIgnoreSelfRefernceModule);//add
}
methodCall.Add(ExpressionMembers.WriteLeft);
var elements = type.GetModelMembers(ReadMemberStateEnum.CanRead);
bool hasIgnoreDefaultValueAttribute = false;
for (int i = 0; i < elements.Count; i++)
{
var item = elements[i];
//valueformat
ValueFormatAttribute valueformat = item.Value.MemberInfo.GetCustomAttribute <ValueFormatAttribute>() ??
item.Value.MemberInfo.DeclaringType.GetCustomAttribute <ValueFormatAttribute>();
//IgnoreDefaultValue
IgnoreDefaultValueAttribute ignoreDefaultValue = item.Value.MemberInfo.GetCustomAttribute <IgnoreDefaultValueAttribute>() ??
item.Value.MemberInfo.DeclaringType.GetCustomAttribute <IgnoreDefaultValueAttribute>();
if (ignoreDefaultValue != null)
{
hasIgnoreDefaultValueAttribute = true;
}
//if (!(m.Name == null && handler.option.IsIgnoreNull))//0
MemberExpression mName = Expression.MakeMemberAccess(instanceArg, item.Value.MemberInfo);
// if (option1.IsFirstLower)
string lowerName = item.Key.Substring(0, 1).ToLower() + item.Key.Substring(1);
string upperName = item.Key.Substring(0, 1).ToUpper() + item.Key.Substring(1);
/*
* ignoreKeys == null || ignoreKeys.count() == 0 || ignoreKeys.Contains(name)==false
*/
BinaryExpression ignoreKeysJudge = Expression.OrElse(
ExpressionMembers.IgnoreKeysIsNull,
Expression.OrElse(
ExpressionMembers.IgnoreKeysCountIsZero,
Expression.Equal(
Expression.Call(ExpressionMembers.IgnoreKeys, typeof(List <string>).GetMethod("Contains"), Expression.Constant(item.Key))
, Expression.Constant(false))
));
/*
* (ignoreKeys == null || ignoreKeys.count() == 0 || ignoreKeys.Contains(name)==false) && ( m!=default(m) )
*/
if (ignoreDefaultValue != null)
{
ignoreKeysJudge = Expression.AndAlso(ignoreKeysJudge, Expression.NotEqual(mName, Expression.Constant(item.Value.Type.GetDefaultValue(), item.Value.Type)));
}
/*
* if(option.keyformat!=null)
* $handler.Writer.Append("\"");
* $handler.Writer.Append(option.keyformat.invoke(string));
* append("\":")
* else
* {
* switch(JsonCharacterRead)
* {
* case None:
* AppendKey()
* case InitialUpper:
* ..
* case InitialLower:
* ..
* }
* }
* };
*
*/
Expression writeKey = Expression.IfThenElse(Expression.NotEqual(ExpressionMembers.GlobalKeyFormat, Expression.Constant(null, JsonSerializerOption._GlobalKeyFormat.FieldType)),
Expression.Block(
ExpressionMembers.Append("\""),
Expression.Call(ExpressionMembers.SbArg, typeof(StringBuilder).GetMethod("Append", new[] { typeof(string) }), Expression.Call(ExpressionMembers.GlobalKeyFormat, JsonSerializerOption._GlobalKeyFormatInvoke, Expression.Constant(item.Key), Expression.Constant(type, typeof(Type)), ExpressionMembers.HandlerArg)
),
ExpressionMembers.Append("\":")
),
Expression.Switch(typeof(void), ExpressionMembers.JsonCharacterRead, null, null,
Expression.SwitchCase(ExpressionMembers.AppendKey(item.Key), Expression.Constant(JsonCharacterReadStateEnum.None, typeof(JsonCharacterReadStateEnum))),
Expression.SwitchCase(ExpressionMembers.AppendKey(upperName), Expression.Constant(JsonCharacterReadStateEnum.InitialUpper, typeof(JsonCharacterReadStateEnum))),
Expression.SwitchCase(ExpressionMembers.AppendKey(lowerName), Expression.Constant(JsonCharacterReadStateEnum.InitialLower, typeof(JsonCharacterReadStateEnum)))
)
);
/*
* string afterValueFormat= valueformat.WriteValueFormat( model.Name,hander out isValueFormat)
* if(isValueFormat)
* sb.append(afterValueFormat)
* else
* WriteValue(model.Name,handler)
*/
Expression writeValue;
if (valueformat != null)
{
writeValue = Expression.Block(
Expression.NotEqual(ExpressionMembers.GlobalValueFormat, Expression.Constant(null, JsonSerializerOption._GlobalValueFormat.FieldType)),
Expression.Assign(ExpressionMembers.AfterValueFormat, Expression.Call(Expression.Constant(valueformat, typeof(ValueFormatAttribute)), ValueFormatAttribute._WriteValueFormat, Expression.Convert(mName, typeof(object)), Expression.Constant(item.Value.Type, typeof(Type)), ExpressionMembers.HandlerArg, ExpressionMembers.IsValueFormat)),
Expression.IfThenElse(Expression.IsTrue(ExpressionMembers.IsValueFormat), ExpressionMembers.Append(ExpressionMembers.AfterValueFormat), ExpressionMembers.GetMethodCall(item.Value.Type, mName))
);
}
else
{
/*
* if( option.GlobalValueFormat!=null){
* string afterValueFormat= option.GlobalValueFormat.Invoke( model.Name,hander out isValueFormat)
* if(isValueFormat)
* sb.append(afterValueFormat)
* else
* WriteValue(model.Name,handler)
* }
* else
* {
* WriteValue(model.Name,handler)
* }
*/
writeValue = Expression.IfThenElse(
Expression.NotEqual(ExpressionMembers.GlobalValueFormat, Expression.Constant(null, JsonSerializerOption._GlobalValueFormat.FieldType)),
Expression.Block(
Expression.Assign(ExpressionMembers.AfterValueFormat, Expression.Call(ExpressionMembers.GlobalValueFormat, JsonSerializerOption._GlobalValueFormatInvoke, Expression.Convert(mName, typeof(object)), Expression.Constant(item.Value.Type, typeof(Type)), ExpressionMembers.HandlerArg, ExpressionMembers.IsValueFormat)),
Expression.IfThenElse(Expression.IsTrue(ExpressionMembers.IsValueFormat), ExpressionMembers.Append(ExpressionMembers.AfterValueFormat), ExpressionMembers.GetMethodCall(item.Value.Type, mName))
),
ExpressionMembers.GetMethodCall(item.Value.Type, mName)
);
}
Expression trunk = Expression.Block(writeKey, writeValue);
// json.Append(",");
if (i != elements.Count - 1)
{
trunk = Expression.Block(trunk, ExpressionMembers.WriteComma);
}
if (!item.Value.Type.IsValueType || (item.Value.Type.IsGenericType && item.Value.Type.GetGenericTypeDefinition() == typeof(Nullable <>)))
{
BinaryExpression mNameIsNull = Expression.Equal(mName, Expression.Constant(null));
//if(!null&&isgorenull)
trunk = Expression.IfThen(Expression.IsFalse(Expression.And(mNameIsNull, ExpressionMembers.IgnoreValueNullIsTrue)), trunk);
}
//
trunk = Expression.IfThen(ignoreKeysJudge, trunk);//忽略key
methodCall.Add(trunk);
}
// //if ( ignoreValueNull == true || ignoreKeys!=null ) ==> RemoveLastComma()
var IgnoreValueNullIsTrueOrIgnoreKeysNotEqureNullRemoveLastComma = Expression.IfThen(
Expression.OrElse(ExpressionMembers.IgnoreValueNullIsTrue, ExpressionMembers.IgnoreKeysIsNotNull),
ExpressionMembers.RemoveLastComma()
);
methodCall.Add(hasIgnoreDefaultValueAttribute? (Expression)ExpressionMembers.RemoveLastComma():IgnoreValueNullIsTrueOrIgnoreKeysNotEqureNullRemoveLastComma);
methodCall.Add(ExpressionMembers.IsReferenceLoopHandlingIsRemoveDeleteComma);
methodCall.Add(ExpressionMembers.WriteRight);
methodCall.Add(ExpressionMembers.IsReferenceLoopHandlingIsNoneSerializeStacksArgPop);
methodCall.Add(Expression.Label(ExpressionMembers.ReturnLable));
return(Expression.Block(new[] { ExpressionMembers.AfterValueFormat, ExpressionMembers.IsValueFormat }, methodCall));
}
