public override void Visit(BreakExpressionNode node)
{
var kw = node.BreakKeywordToken;
if (!kw.IsMissing)
{
var func = _scope.Function !;
if (func.GetLoop() is PrimaryExpressionNode loop)
{
var block = loop switch
{
ForExpressionNode f => f.Body,
WhileExpressionNode w => w.Body,
_ => throw DebugAssert.Unreachable(),
};
node.SetAnnotation("Target", loop);
node.SetAnnotation("Uses", func.GetUses(func.GetDepth(block)));
}
else
{
Error(node, SyntaxDiagnosticKind.InvalidLoopTarget, kw.Location,
"No enclosing 'while' or 'for' expression for this 'break' expression");
}
}
base.Visit(node);
}
public override void Visit(WhileExpressionNode node)
{
Visit(node.Condition);
_scope.Function !.PushLoop(node);
Visit(node.Body);
_scope.Function.PopLoop();
}
