public override void ExitAssignmentExpression(AssignmentExpression assignmentExpression)
{
if (assignmentExpression.Operator.Value != "=")
{
var rightSide = assignmentExpression.Right;
rightSide.Remove();
var leftClone = AstCloner.Clone(assignmentExpression.Left);
switch (leftClone)
{
case SimpleNameExpression simpleNameExpression:
if (simpleNameExpression.Declaration is SetterDeclaration)
{
var classDeclaration = (ClassDeclaration)simpleNameExpression.Declaration.Parent;
var getterSetter = classDeclaration.GettersAndSetters.Single(x => x.Setter == simpleNameExpression.Declaration);
simpleNameExpression.Declaration = getterSetter.Getter;
}
break;
case MemberExpression memberExpression:
if (memberExpression.Declaration is SetterDeclaration)
{
var classDeclaration = (ClassDeclaration)memberExpression.Declaration.Parent;
var getterSetter = classDeclaration.GettersAndSetters.Single(x => x.Setter == memberExpression.Declaration);
memberExpression.Declaration = getterSetter.Getter;
}
break;
}
assignmentExpression.AddChild(
new BinaryExpression(assignmentExpression.Context,
new INode[]
{
leftClone,
new Token(assignmentExpression.Context, assignmentExpression.Operator.Value.Substring(0, assignmentExpression.Operator.Value.Length - 1)),
rightSide
}));
assignmentExpression.Operator.Value = "=";
}
if (!(assignmentExpression.Parent is ExpressionStatement || assignmentExpression.Parent is ForStatement || assignmentExpression.Parent is ForeachStatement))
{
var statement = assignmentExpression.NearestAncestorOfType <IStatement>();
var block = (BlockStatement)statement.Parent;
var variable = new VariableDeclaration(assignmentExpression.Context,
"var" + NumberWheel.Next(),
new INode[]
{
assignmentExpression.Type.Wrap(assignmentExpression.Context),
assignmentExpression.Right
})
{
VariableType = VariableType.Const
};
block.VariableDeclarations.Add(variable);
block.AddChildBefore(statement, new VariableDeclarationStatement(assignmentExpression.Context, variable));
block.AddChildBefore(statement, new ExpressionStatement(assignmentExpression.Context,
new AssignmentExpression(
assignmentExpression.Context,
new INode[]
{
assignmentExpression.Left,
assignmentExpression.Operator,
new SimpleNameExpression(assignmentExpression.Context, variable.Name)
{
Declaration = variable,
Type = variable.Type
},
})
{
Type = assignmentExpression.Type
})
);
assignmentExpression.ReplaceWith(
new SimpleNameExpression(assignmentExpression.Context, variable.Name)
{
Declaration = variable,
Type = variable.Type
});
}
}