public ValueCell(StructField def, IConvertible value, string displayValue, int offset)
: base(def)
{
_value = value;
_displayValue = displayValue;
_offset = offset;
}
protected ReferenceBase(StructField baseField, string attrName, string targetName, TextPosition position)
{
_baseField = baseField;
_attrName = attrName;
_targetName = targetName;
_position = position;
}
internal void SetFieldAttribute(StructField field, string key, string value, TextPosition pos)
{
if (field == null) return;
Type fieldType = field.GetType();
while(true)
{
Dictionary<string, AttributeType> fieldsForType;
if (_registry.TryGetValue(fieldType, out fieldsForType))
{
AttributeType attrType;
if (fieldsForType.TryGetValue(key, out attrType))
{
SetFieldAttributeValue(field, key, attrType, value, pos);
return;
}
}
if (fieldType.Equals(typeof(StructField))) break;
fieldType = fieldType.BaseType;
}
try
{
field.SetAttribute(key, value);
}
catch(Exception)
{
throw new ParseException("Unknown attribute " + key, pos);
}
}
protected ReferenceBase(StructField baseField, string attrName, string targetName, TextPosition position)
{
_baseField = baseField;
_attrName = attrName;
_targetName = targetName;
_position = position;
}
private void LoadFieldGroup(StructLexer lexer, StructDef structDef, StructField parentField)
{
lexer.GetNextToken(StructTokenType.OpenCurly);
StructField linkToField = null;
while (lexer.PeekNextToken() != StructTokenType.CloseCurly)
{
StructField field = LoadField(lexer, structDef, parentField);
if (field != null)
{
bool isLinked = false;
if (linkToField != null)
{
isLinked = linkToField.CanLinkField(field);
}
if (isLinked)
{
linkToField.LinkField(field);
}
else
{
linkToField = field;
}
field.Validate();
}
}
lexer.GetNextToken(StructTokenType.CloseCurly);
}
private StructField LoadField(StructLexer lexer, StructDef structDef, StructField parentField)
{
List <Attribute> attrs = new List <Attribute>();
LoadAttributes(lexer, attrs);
TextPosition fieldPosition = lexer.CurrentPosition;
string fieldType = lexer.GetNextToken(StructTokenType.String);
StructField field = null;
try
{
field = _fieldFactory.CreateField(structDef, fieldType, _attributeRegistry);
field.Name = fieldType;
field.Position = fieldPosition;
}
catch (Exception ex)
{
_errors.Add(new ParseException(ex.Message, fieldPosition));
}
LoadAttributes(lexer, attrs);
if (lexer.PeekNextToken() != StructTokenType.Semicolon && lexer.PeekNextToken() != StructTokenType.OpenCurly)
{
TextPosition pos = lexer.CurrentPosition;
string tag = lexer.GetNextToken(StructTokenType.String);
LoadAttributes(lexer, attrs);
if (field != null)
{
_attributeRegistry.SetFieldAttribute(field, field.DefaultAttribute, tag, pos);
}
}
foreach (Attribute attr in attrs)
{
_attributeRegistry.SetFieldAttribute(field, attr.Key, attr.Value, attr.Position);
}
if (lexer.PeekNextToken() == StructTokenType.OpenCurly)
{
LoadFieldGroup(lexer, structDef, field);
}
else
{
lexer.GetNextToken(StructTokenType.Semicolon);
}
if (field != null)
{
field.EndPosition = lexer.LastTokenEndPosition;
if (parentField == null)
{
structDef.AddField(field);
}
else
{
parentField.AddChildField(field);
}
}
return(field);
}
internal void LinkField(StructField field)
{
if (_linkedFields == null)
{
_linkedFields = new List <StructField>();
}
_linkedFields.Add(field);
field._linkedToField = this;
}
public void AddChildField(StructField field)
{
if (!_acceptsChildren)
{
throw new Exception("Field does not accept children");
}
if (_childFields == null)
{
_childFields = new List <StructField>();
}
_childFields.Add(field);
}
internal void SetFieldAttribute(StructField field, string key, string value, TextPosition pos)
{
if (field == null)
{
return;
}
Type fieldType = field.GetType();
while (true)
{
Dictionary <string, AttributeType> fieldsForType;
if (_registry.TryGetValue(fieldType, out fieldsForType))
{
AttributeType attrType;
if (fieldsForType.TryGetValue(key, out attrType))
{
SetFieldAttributeValue(field, key, attrType, value, pos);
return;
}
}
if (fieldType.Equals(typeof(StructField)))
{
break;
}
fieldType = fieldType.BaseType;
}
try
{
field.SetAttribute(key, value);
}
catch (Exception)
{
throw new ParseException("Unknown attribute " + key, pos);
}
}
private static void SetFieldAttributeValue(StructField field, string key, AttributeType type, string value,
TextPosition pos)
{
switch (type)
{
case AttributeType.Expression:
try
{
field.SetAttributeValue(key, ExpressionParser.Parse(value));
}
catch (ParseException ex)
{
throw new ParseException(ex.Message, pos.OffsetBy(ex.Position));
}
break;
case AttributeType.String:
field.SetAttributeValue(key, value);
break;
case AttributeType.Int:
field.SetAttributeValue(key, Int32.Parse(value));
break;
case AttributeType.Bool:
field.SetAttributeValue(key, (Int32.Parse(value) != 0));
break;
case AttributeType.StructRef:
field.StructDef.StructFile.AddReference(new StructReference(field, key, value, pos));
break;
case AttributeType.EnumRef:
field.StructDef.StructFile.AddReference(new EnumReference(field, key, value, pos));
break;
}
}
public void AddField(StructField field)
{
_fields.Add(field);
}
public ExprCell(StructField def, StructInstance instance, Expression expression) : base(def)
{
_instance = instance;
_expression = expression;
}
public void AddChildField(StructField field)
{
if (!_acceptsChildren)
throw new Exception("Field does not accept children");
if (_childFields == null)
_childFields = new List<StructField>();
_childFields.Add(field);
}
protected internal virtual bool CanLinkField(StructField nextField)
{
return false;
}
public EnumReference(StructField baseField, string attrName, string targetName, TextPosition position)
: base(baseField, attrName, targetName, position)
{
}
private void LoadFieldGroup(StructLexer lexer, StructDef structDef, StructField parentField)
{
lexer.GetNextToken(StructTokenType.OpenCurly);
StructField linkToField = null;
while(lexer.PeekNextToken() != StructTokenType.CloseCurly)
{
StructField field = LoadField(lexer, structDef, parentField);
if (field != null)
{
bool isLinked = false;
if (linkToField != null)
isLinked = linkToField.CanLinkField(field);
if (isLinked)
linkToField.LinkField(field);
else
linkToField = field;
field.Validate();
}
}
lexer.GetNextToken(StructTokenType.CloseCurly);
}
internal void LinkField(StructField field)
{
if (_linkedFields == null)
_linkedFields = new List<StructField>();
_linkedFields.Add(field);
field._linkedToField = this;
}
public ValueCell(StructField def, IConvertible value, string displayValue, int offset) : base(def)
{
_value = value;
_displayValue = displayValue;
_offset = offset;
}
public void AddField(StructField field)
{
_fields.Add(field);
}
private static void SetFieldAttributeValue(StructField field, string key, AttributeType type, string value,
TextPosition pos)
{
switch(type)
{
case AttributeType.Expression:
try
{
field.SetAttributeValue(key, ExpressionParser.Parse(value));
}
catch(ParseException ex)
{
throw new ParseException(ex.Message, pos.OffsetBy(ex.Position));
}
break;
case AttributeType.String:
field.SetAttributeValue(key, value);
break;
case AttributeType.Int:
field.SetAttributeValue(key, Int32.Parse(value));
break;
case AttributeType.Bool:
field.SetAttributeValue(key, (Int32.Parse(value) != 0));
break;
case AttributeType.StructRef:
field.StructDef.StructFile.AddReference(new StructReference(field, key, value, pos));
break;
case AttributeType.EnumRef:
field.StructDef.StructFile.AddReference(new EnumReference(field, key, value, pos));
break;
}
}
protected internal virtual bool CanLinkField(StructField nextField)
{
return(false);
}
public static StructCell CreateErrorCell(StructField def, string errorMessage)
{
return(new ValueCell(def, new ErrValue(errorMessage), -1));
}
protected StructCell(StructField def)
{
_def = def;
}
public EnumReference(StructField baseField, string attrName, string targetName, TextPosition position)
: base(baseField, attrName, targetName, position)
{
}
protected StructCell(StructField def)
{
_def = def;
}
public static StructCell CreateErrorCell(StructField def, string errorMessage)
{
return new ValueCell(def, new ErrValue(errorMessage), -1);
}
private StructField LoadField(StructLexer lexer, StructDef structDef, StructField parentField)
{
List<Attribute> attrs = new List<Attribute>();
LoadAttributes(lexer, attrs);
TextPosition fieldPosition = lexer.CurrentPosition;
string fieldType = lexer.GetNextToken(StructTokenType.String);
StructField field = null;
try
{
field = _fieldFactory.CreateField(structDef, fieldType, _attributeRegistry);
field.Name = fieldType;
field.Position = fieldPosition;
}
catch(Exception ex)
{
_errors.Add(new ParseException(ex.Message, fieldPosition));
}
LoadAttributes(lexer, attrs);
if (lexer.PeekNextToken() != StructTokenType.Semicolon && lexer.PeekNextToken() != StructTokenType.OpenCurly)
{
TextPosition pos = lexer.CurrentPosition;
string tag = lexer.GetNextToken(StructTokenType.String);
LoadAttributes(lexer, attrs);
if (field != null)
_attributeRegistry.SetFieldAttribute(field, field.DefaultAttribute, tag, pos);
}
foreach (Attribute attr in attrs)
_attributeRegistry.SetFieldAttribute(field, attr.Key, attr.Value, attr.Position);
if (lexer.PeekNextToken() == StructTokenType.OpenCurly)
LoadFieldGroup(lexer, structDef, field);
else
lexer.GetNextToken(StructTokenType.Semicolon);
if (field != null)
{
field.EndPosition = lexer.LastTokenEndPosition;
if (parentField == null)
structDef.AddField(field);
else
parentField.AddChildField(field);
}
return field;
}
