public static SqlTableColumn Form(PlSqlParser.TableColumnContext context, List<ColumnConstraint> constraints)
{
var columnName = Name.Simple(context.columnName());
var columnType = SqlTypeParser.Parse(context.datatype());
if (columnType == null)
throw new ParseCanceledException("No type was found for table.");
SqlExpression defaultExpression = null;
bool identity = false;
bool nullable = true;
string indexType = null;
if (context.IDENTITY() != null) {
if (!(columnType is NumericType))
throw new InvalidOperationException("Cannot have an identity column that has not a numeric type");
identity = true;
} else {
var columnConstraints = context.columnConstraint();
if (columnConstraints != null &&
columnConstraints.Length > 0) {
foreach (var constraintContext in columnConstraints) {
if (constraintContext.PRIMARY() != null) {
constraints.Add(new ColumnConstraint {
ColumnName = columnName,
Type = ConstraintType.PrimaryKey
});
} else if (constraintContext.UNIQUE() != null) {
constraints.Add(new ColumnConstraint {
Type = ConstraintType.Unique,
ColumnName = columnName
});
} else if (constraintContext.NOT() != null &&
constraintContext.NULL() != null) {
nullable = false;
}
}
}
if (context.defaultValuePart() != null) {
defaultExpression = Expression.Build(context.defaultValuePart().expression());
}
if (context.columnIndex() != null) {
var columnIndex = context.columnIndex();
if (columnIndex.BLIST() != null) {
indexType = DefaultIndexTypes.InsertSearch;
} else if (columnIndex.NONE() != null) {
indexType = DefaultIndexTypes.BlindSearch;
} else if (columnIndex.id() != null) {
indexType = Name.Simple(columnIndex.id());
} else if (columnIndex.CHAR_STRING() != null) {
indexType = InputString.AsNotQuoted(columnIndex.CHAR_STRING());
}
}
}
return new SqlTableColumn(columnName, columnType) {
IsNotNull = !nullable,
IsIdentity = identity,
DefaultExpression = defaultExpression,
IndexType = indexType
};
}