/// <summary>
/// Expands short assignment to an array index:
/// a[x] += 1
/// </summary>
private NodeBase ExpandIndex(Context ctx, SetIndexNode node)
{
var body = Expr.Block();
// must cache expression?
if (!(node.Expression is GetIdentifierNode))
{
var tmpExpr = ctx.Scope.DeclareImplicit(ctx, node.Expression.Resolve(ctx), false);
body.Add(Expr.Set(tmpExpr, node.Expression));
node.Expression = Expr.Get(tmpExpr);
}
// must cache index?
if (!(node.Index is GetIdentifierNode || node.Index is ILiteralNode || node.Index.IsConstant))
{
var tmpIdx = ctx.Scope.DeclareImplicit(ctx, node.Index.Resolve(ctx), false);
body.Add(Expr.Set(tmpIdx, node.Index));
node.Index = Expr.Get(tmpIdx);
}
body.Add(
Expr.SetIdx(
node.Expression,
node.Index,
_assignmentOperator(
Expr.GetIdx(
node.Expression,
node.Index
),
node.Value
)
)
);
return(body);
}
protected bool Equals(SetIndexNode other)
{
return base.Equals(other) && Equals(Value, other.Value);
}
protected bool Equals(SetIndexNode other)
{
return(base.Equals(other) && Equals(Value, other.Value));
}
/// <summary>
/// Expands short assignment to an array index:
/// a[x] += 1
/// </summary>
private NodeBase expandIndex(Context ctx, SetIndexNode node)
{
var body = Expr.Block();
// must cache expression?
if (!(node.Expression is GetIdentifierNode))
{
var tmpExpr = ctx.Scope.DeclareImplicit(ctx, node.Expression.Resolve(ctx), false);
body.Add(Expr.Set(tmpExpr, node.Expression));
node.Expression = Expr.Get(tmpExpr);
}
// must cache index?
if (!(node.Index is GetIdentifierNode || node.Index is ILiteralNode || node.Index.IsConstant))
{
var tmpIdx = ctx.Scope.DeclareImplicit(ctx, node.Index.Resolve(ctx), false);
body.Add(Expr.Set(tmpIdx, node.Index));
node.Index = Expr.Get(tmpIdx);
}
body.Add(
Expr.SetIdx(
node.Expression,
node.Index,
_AssignmentOperator(
Expr.GetIdx(
node.Expression,
node.Index
),
node.Value
)
)
);
return body;
}