public void Visit(VariableAssignmentStatement statement)
{
var leftArgs = VisitChild(statement.Left);
var rightArgs = VisitChild(statement.Right);
Type leftType = leftArgs.Scope.CodeDomReference.GenerateType();
Type rightType = rightArgs.Scope.CodeDomReference.GenerateType();
if (leftType != rightType && leftType != null)
{
var leftPrimitive = TablePrimitive.FromType(leftType);
rightArgs.CodeExpression = leftPrimitive.ToNative(rightArgs.CodeExpression);
}
var assignment = new CodeAssignStatement(leftArgs.CodeExpression, rightArgs.CodeExpression);
_codeStack.Peek().Scope = rightArgs.Scope;
_codeStack.Peek().ParentStatements.Add(assignment);
}
private CodeExpression DoBoolean(CodeDomArg leftArgs, CodeDomArg rightArgs, CodeBinaryOperatorType operation)
{
Type leftType = null;
if (leftArgs.Scope != null)
{
leftType = leftArgs.Scope.CodeDomReference.GenerateType();
}
Type rightType = null;
if (rightArgs.Scope != null)
{
rightType = rightArgs.Scope.CodeDomReference.GenerateType();
}
if (leftType != null && rightType != null && leftType != rightType)
{
if (leftType == typeof(string) || leftType == typeof(object))
{
var primitive = TablePrimitive.FromType(rightType);
leftArgs.CodeExpression = primitive.ToNative(leftArgs.CodeExpression);
}
else if (rightType == typeof(string))
{
var primitive = TablePrimitive.FromType(leftType);
rightArgs.CodeExpression = primitive.ToNative(rightArgs.CodeExpression);
}
}
if (leftArgs.Tag != null)
{
_codeStack.Peek().Tag = leftArgs.Tag;
}
if (rightArgs.Tag != null)
{
_codeStack.Peek().Tag = rightArgs.Tag;
}
return(new CodeBinaryOperatorExpression(leftArgs.CodeExpression, operation, rightArgs.CodeExpression));
}
private BufferTable FetchBufferTable(NestedSelectStatement statement, IScopeData scope, IList <CodeAssignStatement> codeAssignments, out Boolean outerLoopNeeded)
{
outerLoopNeeded = false;
string aliasId = ((AliasBase)statement.Parent).Alias.Id;
var bufferTable = new BufferTable()
{
Variable = aliasId
};
for (int x = 0; x < statement.Args.Length; x++) //select args
{
var domSelectArg = VisitChild(statement.Args[x], new CodeDomArg()
{
Scope = scope
});
if (((SelectArgsInfo)domSelectArg.Tag).IsPickStatement)
{
outerLoopNeeded = true;
}
if (((SelectArgsInfo)domSelectArg.Tag).ColumnName == null) //have to have a column name in a nested select
{
Errors.Add(new NoColumnName(x + 1, new Semantic.LineInfo(statement.Args[x].Line.Line, statement.Args[x].Line.CharacterPosition)));
}
var primitive = TablePrimitive.FromType(domSelectArg.Scope.CodeType);
bufferTable.Children.Add(new TableColumnArg()
{
Variable = ((SelectArgsInfo)domSelectArg.Tag).DisplayColumnName, Type = primitive.TypeString
});
var assignment = new CodeAssignStatement();
assignment.Left = new CodePropertyReferenceExpression(new CodeTypeReferenceExpression("resultRow"), ((SelectArgsInfo)domSelectArg.Tag).DisplayColumnName);
assignment.Right = domSelectArg.CodeExpression;
codeAssignments.Add(assignment);
}
return(bufferTable);
}
private void DoBoolean(BooleanExpression expression, CodeBinaryOperatorType operation)
{
var leftArgs = VisitChild(expression.Left, new CodeDomArg()
{
Scope = _codeStack.Peek().Scope
});
var rightArgs = VisitChild(expression.Right, new CodeDomArg()
{
Scope = _codeStack.Peek().Scope
});
Type leftType = Type.GetType(leftArgs.Scope.CodeDomReference.BaseType);
Type rightType = Type.GetType(rightArgs.Scope.CodeDomReference.BaseType);
if (leftType != rightType)
{
if (leftType == typeof(string))
{
var primitive = TablePrimitive.FromType(rightType);
leftArgs.CodeExpression = primitive.ToNative(leftArgs.CodeExpression);
}
else if (rightType == typeof(string))
{
var primitive = TablePrimitive.FromType(leftType);
rightArgs.CodeExpression = primitive.ToNative(rightArgs.CodeExpression);
}
}
if (leftArgs.Tag != null)
{
_codeStack.Peek().Tag = leftArgs.Tag;
}
if (rightArgs.Tag != null)
{
_codeStack.Peek().Tag = rightArgs.Tag;
}
_codeStack.Peek().CodeExpression = new CodeBinaryOperatorExpression(leftArgs.CodeExpression, operation, rightArgs.CodeExpression);
}
