private static void Generate(CodeGenContext context, AstBlock block)
{
AstBlockVisitor visitor = new AstBlockVisitor(block);
var loopTargets = new Dictionary <AstBlock, (SpvInstruction, SpvInstruction)>();
visitor.BlockEntered += (sender, e) =>
{
AstBlock mergeBlock = e.Block.Parent;
if (e.Block.Type == AstBlockType.If)
{
AstBlock ifTrueBlock = e.Block;
AstBlock ifFalseBlock;
if (AstHelper.Next(e.Block) is AstBlock nextBlock && nextBlock.Type == AstBlockType.Else)
{
ifFalseBlock = nextBlock;
}
else
{
ifFalseBlock = mergeBlock;
}
var condition = context.Get(AggregateType.Bool, e.Block.Condition);
context.SelectionMerge(context.GetNextLabel(mergeBlock), SelectionControlMask.MaskNone);
context.BranchConditional(condition, context.GetNextLabel(ifTrueBlock), context.GetNextLabel(ifFalseBlock));
}