private async Task WriteParserForSingleResultType(
CodeWriter writer,
IResultParserMethodDescriptor methodDescriptor,
IResultParserTypeDescriptor possibleType,
ITypeLookup typeLookup)
{
if (methodDescriptor.ResultType.IsListType())
{
await WriteListAsync(
writer,
methodDescriptor,
"obj",
"element",
"list",
typeLookup)
.ConfigureAwait(false);
}
else
{
await writer.WriteIndentAsync().ConfigureAwait(false);
await writer.WriteAsync("return ").ConfigureAwait(false);
await WriteCreateObjectAsync(
writer,
methodDescriptor,
possibleType,
"obj",
typeLookup)
.ConfigureAwait(false);
}
}
private async Task WriteObjectPropertyDeserializationAsync(
CodeWriter writer,
IResultParserTypeDescriptor possibleType,
string jsonElement,
ITypeLookup typeLookup)
{
for (int i = 0; i < possibleType.ResultDescriptor.Fields.Count; i++)
{
IFieldDescriptor fieldDescriptor = possibleType.ResultDescriptor.Fields[i];
await writer.WriteIndentAsync().ConfigureAwait(false);
if (fieldDescriptor.Type.NamedType().IsLeafType())
{
ITypeInfo typeInfo = typeLookup.GetTypeInfo(
fieldDescriptor.Type,
true);
string deserializeMethod =
SerializerNameUtils.CreateDeserializerName(
fieldDescriptor.Type);
await writer.WriteAsync(deserializeMethod).ConfigureAwait(false);
await writer.WriteAsync('(').ConfigureAwait(false);
await writer.WriteAsync(jsonElement).ConfigureAwait(false);
await writer.WriteAsync(", \"").ConfigureAwait(false);
await writer.WriteAsync(fieldDescriptor.ResponseName).ConfigureAwait(false);
await writer.WriteAsync("\")").ConfigureAwait(false);
}
else
{
await writer.WriteAsync("Parse").ConfigureAwait(false);
await writer.WriteAsync(GetPathName(fieldDescriptor.Path))
.ConfigureAwait(false);
await writer.WriteAsync('(').ConfigureAwait(false);
await writer.WriteAsync(jsonElement).ConfigureAwait(false);
await writer.WriteAsync(", \"").ConfigureAwait(false);
await writer.WriteAsync(fieldDescriptor.ResponseName).ConfigureAwait(false);
await writer.WriteAsync("\")").ConfigureAwait(false);
}
if (i < possibleType.ResultDescriptor.Fields.Count - 1)
{
await writer.WriteAsync(',').ConfigureAwait(false);
}
await writer.WriteLineAsync().ConfigureAwait(false);
}
}
private async Task WriteCreateListElementAsync(
CodeWriter writer,
IResultParserMethodDescriptor methodDescriptor,
IResultParserTypeDescriptor possibleType,
string jsonElement,
string listField,
string indexField,
ITypeLookup typeLookup)
{
await writer.WriteIndentAsync().ConfigureAwait(false);
await writer.WriteAsync(string.Format(
"{0}[{1}] = ",
listField,
indexField))
.ConfigureAwait(false);
await WriteCreateObjectAsync(
writer,
methodDescriptor,
possibleType,
jsonElement,
typeLookup)
.ConfigureAwait(false);
}
public ResultParserMethodDescriptor(
string name,
OperationDefinitionNode operation,
IType resultType,
FieldNode resultSelection,
Path path,
IInterfaceDescriptor resultDescriptor,
IReadOnlyList <IResultParserTypeDescriptor> possibleTypes,
IResultParserTypeDescriptor unknownType)
{
Name = name
?? throw new ArgumentNullException(nameof(name));
Operation = operation
?? throw new ArgumentNullException(nameof(operation));
ResultType = resultType
?? throw new ArgumentNullException(nameof(resultType));
ResultSelection = resultSelection;
Path = path
?? throw new ArgumentNullException(nameof(path));
ResultDescriptor = resultDescriptor
?? throw new ArgumentNullException(nameof(resultDescriptor));
PossibleTypes = possibleTypes
?? throw new ArgumentNullException(nameof(possibleTypes));
UnknownType = unknownType;
}
private async Task WriteParserForSingleResultType(
CodeWriter writer,
IResultParserMethodDescriptor methodDescriptor,
IResultParserTypeDescriptor possibleType,
ITypeLookup typeLookup)
{
if (methodDescriptor.ResultType.IsListType())
{
await WriteListAsync(
writer,
methodDescriptor,
possibleType,
"obj",
"element",
"list",
"entity",
typeLookup);
}
else
{
await WriteCreateObjectAsync(
writer,
methodDescriptor,
possibleType,
"obj",
typeLookup);
}
await writer.WriteLineAsync();
}
private async Task WriteDeserializeMethodAsync(
CodeWriter writer,
IResultParserTypeDescriptor possibleType,
ITypeLookup typeLookup,
ISet <string> generatedMethods)
{
bool first = true;
foreach (IFieldDescriptor fieldDescriptor in possibleType.ResultDescriptor.Fields)
{
if (fieldDescriptor.Type.NamedType().IsLeafType())
{
ITypeInfo typeInfo = typeLookup.GetTypeInfo(
fieldDescriptor.Type,
false);
string methodName = CreateDeserializerName(typeInfo);
if (generatedMethods.Add(methodName))
{
string serializerMethod = _jsonMethod[typeInfo.SerializationType];
if (fieldDescriptor.Type.IsListType() &&
fieldDescriptor.Type.ListType().ElementType.IsListType())
{
if (!first)
{
await writer.WriteLineAsync();
}
first = false;
await WriteDeserializeNestedLeafList(
writer, methodName, typeInfo, serializerMethod);
}
else if (fieldDescriptor.Type.IsListType() &&
fieldDescriptor.Type.ListType().ElementType.IsLeafType())
{
if (!first)
{
await writer.WriteLineAsync();
}
first = false;
await WriteDeserializeLeafList(
writer, methodName, typeInfo, serializerMethod);
}
else
{
if (!first)
{
await writer.WriteLineAsync();
}
first = false;
await WriteDeserializeLeaf(
writer, methodName, typeInfo, serializerMethod);
}
}
}
}
}
private async Task WriteDeserializeMethodAsync(
CodeWriter writer,
IResultParserTypeDescriptor possibleType,
ITypeLookup typeLookup,
ISet <string> generatedMethods)
{
bool first = true;
foreach (IType type in possibleType.ResultDescriptor.Fields
.Where(t => t.Type.NamedType().IsLeafType())
.Select(t => t.Type))
{
string methodName = SerializerNameUtils.CreateDeserializerName(type);
if (generatedMethods.Add(methodName))
{
Type serializationType = typeLookup.GetSerializationType(type);
string serializerMethod = _jsonMethod[serializationType];
if (!first)
{
await writer.WriteLineAsync().ConfigureAwait(false);
}
first = false;
if (type.IsListType() && type.ListType().ElementType.IsListType())
{
// TODO : implement this
throw new NotImplementedException();
}
else if (type.IsListType() &&
type.ListType().ElementType.IsLeafType())
{
await WriteDeserializeLeafListAsync(
writer,
typeLookup,
methodName,
type,
type.NamedType().Name,
serializerMethod)
.ConfigureAwait(false);
}
else
{
await WriteDeserializeLeafAsync(
writer,
methodName,
typeLookup.GetLeafClrTypeName(type),
type.NamedType().Name,
serializerMethod,
type.IsNonNullType())
.ConfigureAwait(false);
}
}
}
}
private async Task WriteCreateObjectAsync(
CodeWriter writer,
IResultParserMethodDescriptor methodDescriptor,
IResultParserTypeDescriptor possibleType,
string jsonElement,
ITypeLookup typeLookup)
{
string entityField = GetFieldName(possibleType.ResultDescriptor.Name);
await writer.WriteIndentAsync();
await writer.WriteAsync("var ");
await writer.WriteAsync(entityField);
await writer.WriteAsync(" = new ");
await writer.WriteAsync(possibleType.ResultDescriptor.Name);
await writer.WriteAsync("();");
await writer.WriteLineAsync();
await WriteObjectPropertyDeserializationAsync(
writer,
possibleType,
jsonElement,
entityField,
typeLookup);
await writer.WriteIndentAsync();
await writer.WriteAsync("return ");
await writer.WriteAsync(entityField);
await writer.WriteAsync(';');
}
private async Task WriteCreateObjectAsync(
CodeWriter writer,
IResultParserMethodDescriptor methodDescriptor,
IResultParserTypeDescriptor possibleType,
string jsonElement,
ITypeLookup typeLookup)
{
await writer.WriteAsync("new ").ConfigureAwait(false);
await writer.WriteAsync(possibleType.ResultDescriptor.Name).ConfigureAwait(false);
await writer.WriteLineAsync().ConfigureAwait(false);
await writer.WriteIndentAsync().ConfigureAwait(false);
await writer.WriteAsync('(').ConfigureAwait(false);
await writer.WriteLineAsync().ConfigureAwait(false);
using (writer.IncreaseIndent())
{
await WriteObjectPropertyDeserializationAsync(
writer,
possibleType,
jsonElement,
typeLookup)
.ConfigureAwait(false);
}
await writer.WriteIndentAsync().ConfigureAwait(false);
await writer.WriteAsync(')').ConfigureAwait(false);
await writer.WriteAsync(';').ConfigureAwait(false);
await writer.WriteLineAsync().ConfigureAwait(false);
}
private async Task WriteObjectPropertyDeserializationAsync(
CodeWriter writer,
IResultParserTypeDescriptor possibleType,
string jsonElement,
string entityField,
ITypeLookup typeLookup)
{
foreach (IFieldDescriptor fieldDescriptor in possibleType.ResultDescriptor.Fields)
{
await writer.WriteIndentAsync();
await writer.WriteAsync(entityField);
await writer.WriteAsync('.');
await writer.WriteAsync(GetPropertyName(fieldDescriptor.ResponseName));
await writer.WriteAsync(" = ");
if (fieldDescriptor.Type.NamedType().IsLeafType())
{
ITypeInfo typeInfo = typeLookup.GetTypeInfo(
fieldDescriptor.Type,
true);
string deserializeMethod =
ResultParserDeserializeMethodGenerator.CreateDeserializerName(typeInfo);
await writer.WriteAsync('(');
await writer.WriteAsync(typeInfo.ClrTypeName);
await writer.WriteAsync(')');
await writer.WriteAsync(deserializeMethod);
await writer.WriteAsync('(');
await writer.WriteAsync(jsonElement);
await writer.WriteAsync(", \"");
await writer.WriteAsync(fieldDescriptor.ResponseName);
await writer.WriteAsync("\");");
}
else
{
await writer.WriteAsync("Parse");
await writer.WriteAsync(GetPathName(fieldDescriptor.Path));
await writer.WriteAsync('(');
await writer.WriteAsync(jsonElement);
await writer.WriteAsync(", \"");
await writer.WriteAsync(fieldDescriptor.ResponseName);
await writer.WriteAsync("\");");
}
await writer.WriteLineAsync();
}
}
private async Task WriteListAsync(
CodeWriter writer,
IResultParserMethodDescriptor methodDescriptor,
IResultParserTypeDescriptor possibleType,
string jsonElement,
string elementField,
string listField,
string entityField,
ITypeLookup typeLookup)
{
IType elementType = methodDescriptor.ResultType.ElementType();
string resultTypeName = typeLookup.GetTypeName(
methodDescriptor.ResultSelection,
elementType,
true);
string lengthField = jsonElement + "Length";
string indexField = jsonElement + "Index";
await writer.WriteIndentAsync();
await writer.WriteAsync("int ");
await writer.WriteAsync(lengthField);
await writer.WriteAsync(" = ");
await writer.WriteAsync(jsonElement);
await writer.WriteAsync(".GetArrayLength();");
await writer.WriteLineAsync();
await writer.WriteIndentAsync();
await writer.WriteAsync("var ");
await writer.WriteAsync(listField);
await writer.WriteAsync(" = new ");
await writer.WriteAsync(resultTypeName);
await writer.WriteAsync('[');
await writer.WriteAsync(lengthField);
await writer.WriteAsync(']');
await writer.WriteAsync(';');
await writer.WriteLineAsync();
await writer.WriteLineAsync();
await writer.WriteIndentAsync();
await writer.WriteAsync("for (int ");
await writer.WriteAsync(indexField);
await writer.WriteAsync(" = 0; ");
await writer.WriteAsync(indexField);
await writer.WriteAsync($" < {lengthField}; ");
await writer.WriteAsync(indexField);
await writer.WriteAsync("++)");
await writer.WriteLineAsync();
await writer.WriteIndentAsync();
using (writer.WriteBraces())
{
await writer.WriteIndentAsync();
await writer.WriteAsync("JsonElement ");
await writer.WriteAsync(elementField);
await writer.WriteAsync(" = ");
await writer.WriteAsync(jsonElement);
await writer.WriteAsync('[');
await writer.WriteAsync(indexField);
await writer.WriteAsync(']');
await writer.WriteAsync(';');
await writer.WriteLineAsync();
if (elementType.IsListType())
{
await WriteListAsync(
writer,
methodDescriptor,
possibleType,
elementField,
"inner" + char.ToUpper(elementField[0]) + elementField.Substring(1),
"inner" + char.ToUpper(listField[0]) + listField.Substring(1),
"inner" + char.ToUpper(entityField[0]) + entityField.Substring(1),
typeLookup);
}
else
{
await writer.WriteIndentAsync();
await writer.WriteAsync("var ");
await writer.WriteAsync(entityField);
await writer.WriteAsync(" = new ");
await writer.WriteAsync(possibleType.ResultDescriptor.Name);
await writer.WriteAsync("();");
await writer.WriteLineAsync();
await WriteObjectPropertyDeserializationAsync(
writer,
possibleType,
elementField,
entityField,
typeLookup);
await writer.WriteIndentAsync();
await writer.WriteAsync(listField);
await writer.WriteAsync('[');
await writer.WriteAsync(indexField);
await writer.WriteAsync(']');
await writer.WriteAsync(" = ");
await writer.WriteAsync(entityField);
await writer.WriteAsync(';');
}
}
await writer.WriteLineAsync();
await writer.WriteLineAsync();
await writer.WriteIndentAsync();
await writer.WriteAsync("return ");
await writer.WriteAsync(listField);
await writer.WriteAsync(';');
}
