public DotStepStruct(Token token, StructDefinition structDef, DotStep original, Executable owner)
: base(token, owner)
{
this.DotToken = original.DotToken;
this.RawRoot = original.Root;
this.RootVar = "v_" + ((Variable)original.Root).Name.Split('$')[1];
this.FieldName = original.StepToken.Value;
this.StructDefinition = structDef;
}
public DotStepStruct(Token token, StructDefinition structDef, DotStep original, Executable owner)
: base(token, owner)
{
this.DotToken = original.DotToken;
this.RawRoot = original.Root;
this.RootVar = "v_" + ((Variable)original.Root).Name.Split('$')[1];
this.FieldName = original.StepToken.Value;
this.StructDefinition = structDef;
}
public void AddStructDefinition(StructDefinition structDefinition)
{
if (this.structDefinitions.ContainsKey(structDefinition.Name.Value))
{
throw new ParserException(structDefinition.FirstToken, "A struct with this name has already been defined.");
}
this.VerifyNameFree(structDefinition.Name);
this.structDefinitions.Add(structDefinition.Name.Value, structDefinition);
}
internal override Expression Resolve(Parser parser)
{
this.Root = this.Root.Resolve(parser);
string step = this.StepToken.Value;
if (this.Root is EnumReference)
{
EnumDefinition enumDef = ((EnumReference)this.Root).EnumDefinition;
int resolutionState = parser.ConstantAndEnumResolutionState[enumDef];
if (resolutionState != 2)
{
enumDef.Resolve(parser);
}
switch (step)
{
case "length":
return(new IntegerConstant(this.FirstToken, enumDef.IntValue.Count, this.FunctionOrClassOwner));
case "max":
return(new SpecialEntity.EnumMaxFunction(this.FirstToken, enumDef, this.FunctionOrClassOwner));
case "values":
return(new SpecialEntity.EnumValuesFunction(this.FirstToken, enumDef, this.FunctionOrClassOwner));
}
if (enumDef.IntValue.ContainsKey(step))
{
return(new IntegerConstant(this.FirstToken, enumDef.IntValue[step], this.FunctionOrClassOwner));
}
else
{
throw new ParserException(this.StepToken, "The enum '" + enumDef.Name + "' does not contain a definition for '" + step + "'");
}
}
Variable variable = this.Root as Variable;
if (variable != null)
{
string varName = variable.Name;
if (parser.IsTranslateMode && varName.Contains('$'))
{
string[] parts = varName.Split('$');
if (parts.Length == 2 && parts[0].Length > 0 && parts[1].Length > 0)
{
// struct casting
string structName = parts[0];
StructDefinition structDef = parser.GetStructDefinition(structName);
if (structDef == null)
{
throw new ParserException(this.Root.FirstToken, "The struct '" + structName + "' does not exist.");
}
if (!structDef.IndexByField.ContainsKey(step))
{
throw new ParserException(this.StepToken, "The struct '" + structDef.Name.Value + "' does not contain a field called '" + step + "'");
}
return(new DotStepStruct(this.FirstToken, structDef, this, this.FunctionOrClassOwner));
}
}
}
if (this.Root is BaseKeyword)
{
return(new BaseMethodReference(this.Root.FirstToken, this.DotToken, this.StepToken, this.FunctionOrClassOwner).Resolve(parser));
}
if (this.Root is StringConstant)
{
if (step == "join")
{
throw new ParserException(this.StepToken,
"There is no join method on strings. Did you mean to do list.join(string) instead?");
}
else if (step == "size")
{
throw new ParserException(this.StepToken, "String size is indicated by string.length.");
}
else if (step == "length")
{
int length = ((StringConstant)this.Root).Value.Length;
return(new IntegerConstant(this.FirstToken, length, this.FunctionOrClassOwner));
}
}
return(this);
}
internal override Expression Resolve(Parser parser)
{
string className = this.NameToken.Value;
if (parser.IsTranslateMode)
{
StructDefinition structDefinition = parser.GetStructDefinition(className);
if (structDefinition != null)
{
if (this.Args.Length != structDefinition.Fields.Length)
{
throw new ParserException(this.FirstToken, "Args length did not match struct field count for '" + structDefinition.Name.Value + "'.");
}
StructInstance si = new StructInstance(this.FirstToken, this.NameToken, this.Args, this.FunctionOrClassOwner);
si = (StructInstance)si.Resolve(parser);
return(si);
}
}
for (int i = 0; i < this.Args.Length; ++i)
{
this.Args[i] = this.Args[i].Resolve(parser);
}
if (this.Class == null)
{
throw new ParserException(this.FirstToken, "No class named '" + this.Name + "'");
}
if (this.Class.StaticToken != null)
{
throw new ParserException(this.FirstToken, "Cannot instantiate a static class.");
}
ConstructorDefinition cons = this.Class.Constructor;
if (cons.PrivateAnnotation != null)
{
if (this.Class != this.FunctionOrClassOwner.FunctionOrClassOwner)
{
string errorMessage = "The constructor for " + this.Class.NameToken.Value + " is private and cannot be invoked from outside the class.";
if (cons.PrivateAnnotation.Args.Length > 0)
{
StringConstant stringMessage = cons.PrivateAnnotation.Args[0] as StringConstant;
if (stringMessage != null)
{
errorMessage += " " + stringMessage.Value.Trim();
}
}
throw new ParserException(this.FirstToken, errorMessage);
}
}
if (this.Args.Length < cons.MinArgCount || this.Args.Length > cons.MaxArgCount)
{
string message = "This constructor has the wrong number of arguments. ";
if (cons.MinArgCount == cons.MaxArgCount)
{
message += "Expected " + cons.MinArgCount + " but found " + this.Args.Length;
}
else if (this.Args.Length < cons.MinArgCount)
{
message += " At least " + cons.MinArgCount + " are required but found only " + this.Args.Length + ".";
}
else
{
message += " At most " + cons.MaxArgCount + " are allowed but found " + this.Args.Length + ".";
}
throw new ParserException(this.FirstToken, message);
}
return(this);
}