public UnresolvedReference(ConceptDescription dependant, ConceptMember referenceMember)
{
Dependant = dependant;
Member = referenceMember;
ReferencedStub = (IConceptInfo)Member.GetValue(Dependant.Concept);
ReferencedKey = ReferencedStub?.GetKey();
}
private static void AppendMember(StringBuilder text, IConceptInfo ci, ConceptMember member, bool exceptionOnNullMember)
{
object memberValue = member.GetValue(ci);
if (memberValue == null)
{
if (exceptionOnNullMember)
{
throw new DslSyntaxException(ci, string.Format(
"{0}'s property {1} is null. Info: {2}.",
ci.GetType().Name, member.Name, ci.GetErrorDescription()));
}
else
{
text.Append("<null>");
}
}
else if (member.IsConceptInfo)
{
IConceptInfo value = (IConceptInfo)member.GetValue(ci);
if (member.ValueType == typeof(IConceptInfo))
{
text.Append(BaseConceptInfoType(value).Name).Append(":");
}
AppendMembers(text, value, SerializationOptions.KeyMembers, exceptionOnNullMember);
}
else if (member.ValueType == typeof(string))
{
text.Append(SafeDelimit(member.GetValue(ci).ToString()));
}
else
{
throw new FrameworkException(string.Format(
"IConceptInfo member {0} of type {1} in {2} is not supported.",
member.Name, member.ValueType.Name, ci.GetType().Name));
}
}
private bool IsConceptMemberEqual(IConceptInfo newConcept, IConceptInfo existingConcept, ConceptMember conceptMemeber)
{
if (conceptMemeber.IsConceptInfo)
{
if ((conceptMemeber.GetValue(existingConcept) as IConceptInfo).GetKey() !=
(conceptMemeber.GetValue(newConcept) as IConceptInfo).GetKey())
{
return(false);
}
else
{
return(true);
}
}
else
{
var value1 = conceptMemeber.GetValue(existingConcept);
var value2 = conceptMemeber.GetValue(newConcept);
if (value1 == null)
{
return(value2 == null);
}
else if (value2 == null)
{
return(false);
}
else
{
return(value1.Equals(value2));
}
}
}
private static void AppendMember(StringBuilder text, IConceptInfo ci, ConceptMember member, bool exceptionOnNullMember)
{
object memberValue = member.GetValue(ci);
if (memberValue == null)
if (exceptionOnNullMember)
throw new DslSyntaxException(ci, string.Format(
"{0}'s property {1} is null. Info: {2}.",
ci.GetType().Name, member.Name, ci.GetErrorDescription()));
else
text.Append("<null>");
else if (member.IsConceptInfo)
{
IConceptInfo value = (IConceptInfo)member.GetValue(ci);
if (member.ValueType == typeof(IConceptInfo))
text.Append(BaseConceptInfoType(value).Name).Append(":");
AppendMembers(text, value, SerializationOptions.KeyMembers, exceptionOnNullMember);
}
else if (member.ValueType == typeof(string))
text.Append(SafeDelimit(member.GetValue(ci).ToString()));
else
throw new FrameworkException(string.Format(
"IConceptInfo member {0} of type {1} in {2} is not supported.",
member.Name, member.ValueType.Name, ci.GetType().Name));
}
public ValueOrError<object> ReadMemberValue(ConceptMember member, ITokenReader tokenReader, IConceptInfo lastConcept,
bool firstMember, ref bool lastPropertyWasInlineParent, ref bool lastConceptUsed, bool readingAReference)
{
try
{
if (lastPropertyWasInlineParent && member.IsKey && !member.IsConceptInfo) // TODO: Removing "IsConceptInfo" from this condition would produce a mismatch. Think of a better solution for parsing the concept key.
{
if (!tokenReader.TryRead("."))
return ValueOrError<object>.CreateError(string.Format(
"Parent property and the following key value ({0}) must be separated with a dot. Expected \".\"",
member.Name));
}
lastPropertyWasInlineParent = false;
if (member.IsStringType)
return tokenReader.ReadText();
if (member.ValueType == typeof(IConceptInfo))
if (firstMember && lastConcept != null)
{
lastConceptUsed = true;
return (object)lastConcept;
}
else
return ValueOrError<object>.CreateError("Member of type IConceptInfo can only be used as a first member and enclosed within the referenced parent concept.");
if (member.IsConceptInfo && lastConcept != null && member.ValueType.IsInstanceOfType(lastConcept)
&& member.ValueType.IsAssignableFrom(ConceptInfoType)) // Recursive "parent" property
{
lastConceptUsed = true;
return (object)lastConcept;
}
if (member.IsConceptInfo && lastConcept != null && member.ValueType.IsInstanceOfType(lastConcept)
&& firstMember)
{
lastConceptUsed = true;
return (object)lastConcept;
}
if (member.IsConceptInfo && firstMember)
{
if (member.ValueType == ConceptInfoType)
return ValueOrError.CreateError(string.Format(
"Recursive concept {0} cannot be used as a root because its parent property ({1}) must reference another concept. Use a non-recursive concept for the root and a derivation of the root concept with additional parent property as a recursive concept.",
ConceptInfoHelper.GetKeywordOrTypeName(ConceptInfoType), member.Name));
if (!readingAReference && Members.Where(m => m.IsParsable).Count() == 1)
{
// This validation is not necessary for consistent parsing. It is enforced simply to avoid ambiguity when parsing
// similar concepts such as "Logging { AllProperties; }", "History { AllProperties; }" and "Persisted { AllProperties; }".
var parentMembers = ConceptMembers.Get(member.ValueType).Where(m => m.IsParsable).ToArray();
if (parentMembers.Count() == 1 && parentMembers.Single().IsConceptInfo)
return ValueOrError.CreateError(string.Format(
"{0} must be enclosed within the referenced parent concept {1}. A single-reference concept that references another single-reference concept must always be used with embedded syntax to avoid ambiguity.",
ConceptInfoHelper.GetKeywordOrTypeName(ConceptInfoType),
ConceptInfoHelper.GetKeywordOrTypeName(member.ValueType)));
}
GenericParser subParser = new GenericParser(member.ValueType, "");
lastConceptUsed = true;
lastPropertyWasInlineParent = true;
return subParser.ParseMembers(tokenReader, lastConcept, true).ChangeType<object>();
}
if (member.IsConceptInfo)
{
GenericParser subParser = new GenericParser(member.ValueType, "");
return subParser.ParseMembers(tokenReader, null, true).ChangeType<object>();
}
return ValueOrError.CreateError(string.Format(
"GenericParser does not support members of type \"{0}\". Try using string or implementation of IConceptInfo.",
member.ValueType.Name));
}
catch (DslSyntaxException ex)
{
return ValueOrError<object>.CreateError(ex.Message);
}
}
public ValueOrError <object> ReadMemberValue(ConceptMember member, ITokenReader tokenReader, IConceptInfo lastConcept,
bool firstMember, ref bool lastPropertyWasInlineParent, ref bool lastConceptUsed, bool readingAReference)
{
try
{
if (lastPropertyWasInlineParent && member.IsKey && !member.IsConceptInfo) // TODO: Removing "IsConceptInfo" from this condition would produce a mismatch. Think of a better solution for parsing the concept key.
{
if (!tokenReader.TryRead("."))
{
return(ValueOrError <object> .CreateError(string.Format(
"Parent property and the following key value ({0}) must be separated with a dot. Expected \".\"",
member.Name)));
}
}
lastPropertyWasInlineParent = false;
if (member.IsStringType)
{
return(tokenReader.ReadText().ChangeType <object>());
}
if (member.ValueType == typeof(IConceptInfo))
{
if (firstMember && lastConcept != null)
{
lastConceptUsed = true;
return((object)lastConcept);
}
else
{
return(ValueOrError <object> .CreateError("Member of type IConceptInfo can only be used as a first member and enclosed within the referenced parent concept."));
}
}
if (member.IsConceptInfo && lastConcept != null && member.ValueType.IsInstanceOfType(lastConcept) &&
member.ValueType.IsAssignableFrom(ConceptInfoType)) // Recursive "parent" property
{
lastConceptUsed = true;
return((object)lastConcept);
}
if (member.IsConceptInfo && lastConcept != null && member.ValueType.IsInstanceOfType(lastConcept) &&
firstMember)
{
lastConceptUsed = true;
return((object)lastConcept);
}
if (member.IsConceptInfo && firstMember)
{
if (member.ValueType == ConceptInfoType)
{
return(ValueOrError.CreateError(string.Format(
"Recursive concept {0} cannot be used as a root because its parent property ({1}) must reference another concept. Use a non-recursive concept for the root and a derivation of the root concept with additional parent property as a recursive concept.",
ConceptInfoHelper.GetKeywordOrTypeName(ConceptInfoType), member.Name)));
}
if (!readingAReference && Members.Where(m => m.IsParsable).Count() == 1)
{
// This validation is not necessary for consistent parsing. It is enforced simply to avoid ambiguity when parsing
// similar concepts such as "Logging { AllProperties; }", "History { AllProperties; }" and "Persisted { AllProperties; }".
var parentMembers = ConceptMembers.Get(member.ValueType).Where(m => m.IsParsable).ToArray();
if (parentMembers.Count() == 1 && parentMembers.Single().IsConceptInfo)
{
return(ValueOrError.CreateError(string.Format(
"{0} must be enclosed within the referenced parent concept {1}. A single-reference concept that references another single-reference concept must always be used with embedded syntax to avoid ambiguity.",
ConceptInfoHelper.GetKeywordOrTypeName(ConceptInfoType),
ConceptInfoHelper.GetKeywordOrTypeName(member.ValueType))));
}
}
GenericParser subParser = new GenericParser(member.ValueType, "");
lastConceptUsed = true;
lastPropertyWasInlineParent = true;
return(subParser.ParseMembers(tokenReader, lastConcept, true).ChangeType <object>());
}
if (member.IsConceptInfo)
{
GenericParser subParser = new GenericParser(member.ValueType, "");
return(subParser.ParseMembers(tokenReader, null, true).ChangeType <object>());
}
return(ValueOrError.CreateError(string.Format(
"GenericParser does not support members of type \"{0}\". Try using string or implementation of IConceptInfo.",
member.ValueType.Name)));
}
catch (DslSyntaxException ex)
{
return(ValueOrError <object> .CreateError(ex.Message));
}
}
private ValueOrError <object> ReadMemberValue(ConceptMember member, ITokenReader tokenReader, IConceptInfo useLastConcept,
bool firstMember, ref bool parsedFirstReferenceElement, bool readingAReference)
{
try
{
if (member.IsStringType)
{
if (useLastConcept != null)
{
return(ValueOrError <object> .CreateError($"This concept cannot be nested within {useLastConcept.GetType().Name}. Trying to read {ConceptInfoType.Name}."));
}
if (readingAReference && parsedFirstReferenceElement)
{
if (!tokenReader.TryRead("."))
{
return(ValueOrError <object> .CreateError(string.Format(
"Parent property and the following key value ({0}) must be separated with a dot. Expected \".\"",
member.Name)));
}
}
parsedFirstReferenceElement = true;
// Legacy syntax:
if (!readingAReference && member.IsKey && member.IsStringType && !firstMember)
{
if (tokenReader.TryRead("."))
{
AddWarning($"Obsolete syntax: Remove '.' from {Keyword} statement. {((TokenReader)tokenReader).ReportPosition()}.");
}
}
return(tokenReader.ReadText().ChangeType <object>());
}
if (member.ValueType == typeof(IConceptInfo))
{
if (useLastConcept != null)
{
return((object)useLastConcept);
}
else
{
return(ValueOrError <object> .CreateError($"Member of type IConceptInfo can only be nested within" +
$" the referenced parent concept. It must be a first member or marked with {nameof(ConceptParentAttribute)}."));
}
}
if (useLastConcept != null && member.ValueType.IsInstanceOfType(useLastConcept))
{
return((object)useLastConcept);
}
if (member.IsConceptInfo && firstMember && !readingAReference && Members.Count(m => m.IsParsable) == 1)
{
// This validation is not necessary for consistent parsing. It is enforced simply to avoid ambiguity for future concept overloads
// when parsing similar concepts such as "Logging { AllProperties; }", "History { AllProperties; }" and "Persisted { AllProperties; }".
var parentMembers = ConceptMembers.Get(member.ValueType).Where(m => m.IsParsable).ToArray();
if (parentMembers.Count() == 1 && parentMembers.Single().IsConceptInfo)
{
return(ValueOrError.CreateError($"{ConceptInfoHelper.GetKeywordOrTypeName(ConceptInfoType)} must be nested" +
$" within the referenced parent concept {ConceptInfoHelper.GetKeywordOrTypeName(member.ValueType)}." +
$" A single-reference concept that references another single-reference concept must always be used with nested syntax to avoid ambiguity."));
}
}
if (member.IsConceptInfo)
{
if (firstMember && member.ValueType == ConceptInfoType)
{
return(ValueOrError.CreateError(string.Format(
"Recursive concept {0} cannot be used as a root because its parent property ({1}) must reference another concept. Use a non-recursive concept for the root and a derivation of the root concept with additional parent property as a recursive concept.",
ConceptInfoHelper.GetKeywordOrTypeName(ConceptInfoType), member.Name)));
}
GenericParser subParser = new GenericParser(member.ValueType, "");
return(subParser.ParseMembers(tokenReader, useLastConcept, true, ref parsedFirstReferenceElement).ChangeType <object>());
}
return(ValueOrError.CreateError(string.Format(
"GenericParser does not support members of type \"{0}\". Try using string or implementation of IConceptInfo.",
member.ValueType.Name)));
}
catch (DslSyntaxException ex)
{
return(ValueOrError <object> .CreateError(ex.Message));
}
}