private static void WriteVisitMember(CodeWriter codeWriter, DataModel model, DataModelMember member)
{
DataModelType memberType = model.GetTypeForMember(member);
switch (memberType.Kind)
{
case DataModelTypeKind.BuiltInNumber:
case DataModelTypeKind.BuiltInString:
case DataModelTypeKind.BuiltInDictionary:
case DataModelTypeKind.BuiltInBoolean:
case DataModelTypeKind.BuiltInUri:
case DataModelTypeKind.BuiltInVersion:
case DataModelTypeKind.Enum:
// Don't visit builtins; overrides would inspect those directly.
return;
case DataModelTypeKind.Leaf:
case DataModelTypeKind.Base:
// Visit this member
break;
case DataModelTypeKind.Default:
default:
Debug.Fail("Unexpected DataModelTypeKind");
return;
}
var valueNamer = new LocalVariableNamer("value");
string sourceVariable = "node." + member.CSharpName;
for (int idx = 0; idx < member.Rank; ++idx)
{
string valueName = valueNamer.MakeName();
codeWriter.OpenBrace("if ({0} != null)", sourceVariable);
codeWriter.OpenBrace("foreach (var {0} in {1})", valueName, sourceVariable);
sourceVariable = valueName;
}
codeWriter.WriteLine("this.VisitNullChecked({0});", sourceVariable);
if (member.Rank == 0)
{
return;
}
for (int idx = 0; idx < member.Rank; ++idx)
{
codeWriter.CloseBrace(); // if (source != null)
codeWriter.CloseBrace(); // foreach
}
codeWriter.WriteLine();
}
private static void WriteInitForMember(CodeWriter codeWriter, DataModel model, DataModelMember member, LocalVariableNamer destNamer, LocalVariableNamer valueNamer)
{
DataModelType memberType = model.GetTypeForMember(member);
if (memberType.IsNullable)
{
codeWriter.OpenBrace("if ({0} != null)", member.ArgumentName);
}
if (member.Rank == 0)
{
codeWriter.WriteLine("this." + member.CSharpName + " = " + GetCopyCreationExpression(memberType, member.ArgumentName) + ";");
}
else
{
string[] destinations = new string[member.Rank];
string source = member.ArgumentName;
for (int idx = 0; idx < destinations.Length; ++idx)
{
string currentDest = destNamer.MakeName();
destinations[idx] = currentDest;
StringBuilder sb = new StringBuilder();
sb.Append("var ").Append(currentDest).Append(" = new List<");
AppendRankedTypeName(sb, "IList", memberType.CSharpName, member.Rank - idx - 1);
sb.Append(">();");
codeWriter.WriteLineConsume(sb);
codeWriter.OpenBrace("if ({0} != null)", source);
string value = valueNamer.MakeName();
codeWriter.OpenBrace("foreach (var {0} in {1})", value, source);
source = value;
}
string lastDestination = destinations[destinations.Length - 1];
if (memberType.IsNullable)
{
codeWriter.OpenBrace("if ({0} == null)", source);
codeWriter.WriteLine(lastDestination + ".Add(null);");
codeWriter.CloseBrace();
codeWriter.OpenBrace("else");
}
codeWriter.WriteLine(lastDestination + ".Add(" + GetCopyCreationExpression(memberType, source) + ");");
if (memberType.IsNullable)
{
codeWriter.CloseBrace();
}
codeWriter.CloseBrace(); // foreach
codeWriter.CloseBrace(); // if (source != null)
codeWriter.WriteLine();
for (int idx = 1; idx < destinations.Length; ++idx)
{
codeWriter.WriteLine("{0}.Add({1});", destinations[member.Rank - idx - 1], destinations[member.Rank - idx]);
codeWriter.CloseBrace(); // foreach
codeWriter.CloseBrace(); // if (source != null)
codeWriter.WriteLine();
}
codeWriter.WriteLine("this.{0} = {1};", member.CSharpName, destinations[0]);
}
if (memberType.IsNullable)
{
codeWriter.CloseBrace();
}
}
private void WriteToStringEntryRecursive(ToStringEntry toStringEntry, DataModelTypeKind memberTypeKind, string sourceVariable, int ranksRemaining)
{
if (ranksRemaining == 0)
{
switch (memberTypeKind)
{
case DataModelTypeKind.Leaf:
case DataModelTypeKind.Base:
case DataModelTypeKind.BuiltInUri:
case DataModelTypeKind.BuiltInVersion:
_codeWriter.WriteLine("sb.Append({0} == null ? \"{1}(null)\" : {0}.ToString());", sourceVariable, toStringEntry.Variable.CSharpName);
break;
case DataModelTypeKind.BuiltInString:
_codeWriter.WriteLine("sb.Append({0} == null ? \"{1}(null)\" : {0});", sourceVariable, toStringEntry.Variable.CSharpName);
break;
case DataModelTypeKind.BuiltInNumber:
case DataModelTypeKind.BuiltInBoolean:
_codeWriter.WriteLine("sb.Append({0}.ToString(CultureInfo.InvariantCulture));", sourceVariable);
break;
case DataModelTypeKind.BuiltInDictionary:
string value = _valueNamer.MakeName();
_codeWriter.OpenBrace("if (this.{0} == null)", toStringEntry.Variable.CSharpName);
_codeWriter.WriteLine("sb.Append(\"{0}(null)\");", toStringEntry.Variable.CSharpName);
_codeWriter.CloseBrace();
_codeWriter.OpenBrace("else");
_codeWriter.WriteLine("sb.Append('{');");
_codeWriter.OpenBrace("using (var {0} = this.{1}.GetEnumerator())", value, toStringEntry.Variable.CSharpName);
_codeWriter.OpenBrace("if ({0}.MoveNext())", value);
_codeWriter.WriteLine("sb.Append(\"{{\" + {0}.Current.Key + \", \" + {0}.Current.Value + \"}}\");", value);
_codeWriter.OpenBrace("while ({0}.MoveNext())", value);
_codeWriter.WriteLine("sb.Append(\", {{\" + {0}.Current.Key + \", \" + {0}.Current.Value + \"}}\");", value);
_codeWriter.CloseBrace(); // while
_codeWriter.CloseBrace(); // if
_codeWriter.CloseBrace(); // using
_codeWriter.WriteLine("sb.Append('}');");
_codeWriter.CloseBrace(); // else
break;
default:
Debug.Fail("Bad DataModelTypeKind " + _writtenType.Kind);
break;
}
}
else
{
string indexVariable = _indexNamer.MakeName();
string valueVariable = _valueNamer.MakeName();
string skipDelimiterLabel = _labelNamer.MakeName();
string loopHeadLabel = _labelNamer.MakeName();
// This code makes the:
// Write(0)
// for (i = 1 -> N) {
// Delimeter();
// Write(i);
// }
// pattern; the "goto" mess is to avoid n^2 code size explosion due to repeating the "Write" call.
// (If this were not generated code it would make sense to stamp out separate functions)
//
// if (source.Count != 0) {
// int index = 0;
// goto skipDelimeter;
// loopHead:
// WriteDelimeter();
// skipDelimeter:
// Write();
// ++index;
// if (index < source.Count) {
// goto loopHead;
// }
// }
//
_codeWriter.OpenBrace("if ({0}.Count != 0)", sourceVariable);
_codeWriter.WriteLine("int {0} = 0;", indexVariable);
_codeWriter.WriteLine("goto {0};", skipDelimiterLabel);
_codeWriter.WriteLine(loopHeadLabel + ":");
this.WriteLiteralTextAppend(toStringEntry.Text ?? ", ");
_codeWriter.WriteLine(skipDelimiterLabel + ":");
_codeWriter.WriteLine("var {0} = {1}[{2}];", valueVariable, sourceVariable, indexVariable);
this.WriteToStringEntryRecursive(toStringEntry, memberTypeKind, valueVariable, ranksRemaining - 1);
_codeWriter.WriteLine("++{0};", indexVariable);
_codeWriter.OpenBrace("if ({0} < {1}.Count)", indexVariable, sourceVariable);
_codeWriter.WriteLine("goto {0};", loopHeadLabel);
_codeWriter.CloseBrace(); // if (index < source.Count)
_codeWriter.CloseBrace(); // if (count != 0)
_codeWriter.WriteLine();
}
}
private void WriteEqualsForMember(DataModelMember member)
{
DataModelTypeKind typeKind = _model.GetTypeForMember(member).Kind;
string sourceVariable = "this." + member.CSharpName;
string otherVariable = "other." + member.CSharpName;
for (int idx = 0; idx < member.Rank; ++idx)
{
_codeWriter.OpenBrace("if (!global::System.Object.ReferenceEquals({0}, {1}))", sourceVariable, otherVariable);
_codeWriter.OpenBrace("if ({0} == null || {1} == null)", sourceVariable, otherVariable);
_codeWriter.WriteLine("return false;");
_codeWriter.CloseBrace(); // null check
_codeWriter.WriteLine();
_codeWriter.OpenBrace("if ({0}.Count != {1}.Count)", sourceVariable, otherVariable);
_codeWriter.WriteLine("return false;");
_codeWriter.CloseBrace(); // different lengths check
_codeWriter.WriteLine();
string max = _maxNamer.MakeName();
string index = _indexNamer.MakeName();
_codeWriter.WriteLine("int {0} = {1}.Count;", max, sourceVariable);
_codeWriter.OpenBrace("for (int {0} = 0; {0} < {1}; ++{0})", index, max);
string newSource = _valueNamer.MakeName();
string newOther = _valueNamer.MakeName();
_codeWriter.WriteLine("var {0} = {1}[{2}];", newSource, sourceVariable, index);
_codeWriter.WriteLine("var {0} = {1}[{2}];", newOther, otherVariable, index);
sourceVariable = newSource;
otherVariable = newOther;
}
switch (typeKind)
{
case DataModelTypeKind.Base:
case DataModelTypeKind.Leaf:
_codeWriter.OpenBrace("if (!global::System.Object.Equals({0}, {1}))", sourceVariable, otherVariable);
_codeWriter.WriteLine("return false;");
_codeWriter.CloseBrace();
break;
case DataModelTypeKind.BuiltInString:
case DataModelTypeKind.BuiltInNumber:
case DataModelTypeKind.BuiltInBoolean:
case DataModelTypeKind.BuiltInUri:
case DataModelTypeKind.Enum:
case DataModelTypeKind.BuiltInVersion:
_codeWriter.OpenBrace("if ({0} != {1})", sourceVariable, otherVariable);
_codeWriter.WriteLine("return false;");
_codeWriter.CloseBrace();
break;
case DataModelTypeKind.BuiltInDictionary:
string sourceKvp = _valueNamer.MakeName();
string otherVal = _valueNamer.MakeName();
_codeWriter.OpenBrace("if (!global::System.Object.ReferenceEquals({0}, {1}))", sourceVariable, otherVariable);
_codeWriter.OpenBrace("if ({0} == null || {1} == null || {0}.Count != {1}.Count)", sourceVariable, otherVariable);
_codeWriter.WriteLine("return false;");
_codeWriter.CloseBrace();
_codeWriter.OpenBrace("foreach (var {0} in {1})", sourceKvp, sourceVariable);
_codeWriter.WriteLine("string " + otherVal + ";");
_codeWriter.OpenBrace("if (!{0}.TryGetValue({1}.Key, out {2}) || !global::System.Object.Equals({1}.Value, {2}))", otherVariable, sourceKvp, otherVal);
_codeWriter.WriteLine("return false;");
_codeWriter.CloseBrace(); // if
_codeWriter.CloseBrace(); // foreach
_codeWriter.CloseBrace(); // if (!referenceequals)
break;
default:
Debug.Fail("Unrecognized DataModelTypeKind");
throw new InvalidOperationException();
}
for (int idx = 0; idx < member.Rank; ++idx)
{
_codeWriter.CloseBrace(); // for
_codeWriter.CloseBrace(); // ReferenceEquals
}
_codeWriter.WriteLine();
}
private void WriteGetHashCodeMember(DataModelMember member)
{
DataModelType memberType = _model.GetTypeForMember(member);
DataModelTypeKind typeKind = memberType.Kind;
string sourceVariable = "this." + member.CSharpName;
int additionalCloseBraces = 0;
// (rank - 1) * 2 OpenBrace calls
for (int idx = 1; idx < member.Rank; ++idx)
{
string nextVariable = _valueNamer.MakeName();
_codeWriter.OpenBrace("if ({0} != null)", sourceVariable);
_codeWriter.OpenBrace("foreach (var {0} in {1})", nextVariable, sourceVariable);
_codeWriter.WriteLine("result = result * {0};", MultiplicativeConstant);
_codeWriter.OpenBrace("if ({0} != null)", nextVariable);
sourceVariable = nextVariable;
++additionalCloseBraces;
}
// rank != 0 ? 1 : 0 OpenBrace calls
if (member.Rank != 0)
{
string nextVariable = _valueNamer.MakeName();
_codeWriter.OpenBrace("if ({0} != null)", sourceVariable);
_codeWriter.OpenBrace("foreach (var {0} in {1})", nextVariable, sourceVariable);
_codeWriter.WriteLine("result = result * {0};", MultiplicativeConstant);
sourceVariable = nextVariable;
++additionalCloseBraces;
}
// rank
if (memberType.IsNullable)
{
_codeWriter.OpenBrace("if ({0} != null)", sourceVariable);
}
switch (typeKind)
{
case DataModelTypeKind.Base:
case DataModelTypeKind.Leaf:
case DataModelTypeKind.BuiltInString:
case DataModelTypeKind.BuiltInUri:
case DataModelTypeKind.BuiltInVersion:
_codeWriter.WriteLine("result = (result * {1}) + {0}.GetHashCode();", sourceVariable, MultiplicativeConstant);
break;
case DataModelTypeKind.BuiltInNumber:
case DataModelTypeKind.Enum:
_codeWriter.WriteLine("result = (result * {1}) + (int){0};", sourceVariable, MultiplicativeConstant);
break;
case DataModelTypeKind.BuiltInBoolean:
_codeWriter.OpenBrace("if (" + sourceVariable + ")");
_codeWriter.WriteLine("result = (result * " + MultiplicativeConstant + ") + 1;");
_codeWriter.CloseBrace();
break;
case DataModelTypeKind.BuiltInDictionary:
string xorTempVal = _xorNamer.MakeName();
string iterVal = _valueNamer.MakeName();
_codeWriter.WriteLine("// Use xor for dictionaries to be order-independent");
_codeWriter.WriteLine("int {0} = 0;", xorTempVal);
_codeWriter.OpenBrace("foreach (var {0} in {1})", iterVal, sourceVariable);
_codeWriter.WriteLine("{0} ^= ({1}.Key ?? String.Empty).GetHashCode();", xorTempVal, iterVal);
_codeWriter.WriteLine("{0} ^= ({1}.Value ?? String.Empty).GetHashCode();", xorTempVal, iterVal);
_codeWriter.CloseBrace(); // foreach
_codeWriter.WriteLine();
_codeWriter.WriteLine("result = (result * {1}) + {0};", xorTempVal, MultiplicativeConstant);
break;
default:
Debug.Fail("Unrecognized DataModelTypeKind");
break;
}
int closeBraces;
if (member.Rank == 0)
{
closeBraces = 0;
}
else
{
closeBraces = (member.Rank - 1) * 2 + 1;
}
if (memberType.IsNullable)
{
++closeBraces;
}
closeBraces += additionalCloseBraces;
for (int idx = 0; idx < closeBraces; ++idx)
{
_codeWriter.CloseBrace();
}
}