public GlobalNode(WasmType type, bool mutable)
{
AssertValueType(type);
Type = type;
Init = new NodesList(type);
Mutable = mutable;
}
public void PushBlock(NodesList node)
{
if (string.IsNullOrWhiteSpace(node.Label.Name))
{
node.Label.Name = $"label_{Blocks.Count}";
}
Blocks.Push(node);
}
WasmNodeResult IWasmOpcodeVisitor <WasmNodeArg, WasmNodeResult> .Visit(IfOpcode opcode, WasmNodeArg arg)
{
var condition = arg.Pop();
var ifNode = new IfNode(condition, opcode.Signature);
var thenBlock = new NodesList(opcode.Signature);
ifNode.Then = thenBlock;
arg.Push(ifNode);
arg.PushBlock(thenBlock);
return(null);
}
WasmNodeResult IWasmOpcodeVisitor <WasmNodeArg, WasmNodeResult> .Visit(ElseOpcode opcode, WasmNodeArg arg)
{
arg.PopBlock();
var parentNode = arg.Pop();
var ifNode = parentNode as IfNode;
if (ifNode == null)
{
throw new WasmNodeException("if node expected");
}
var elseBlock = new NodesList(ifNode.Signature);
ifNode.Else = elseBlock;
arg.Push(ifNode);
arg.PushBlock(elseBlock);
return(null);
}
public BlockNode(WasmType signature)
{
Nodes = new NodesList(signature);
}
public LoopNode(WasmType signature)
{
Nodes = new NodesList(signature);
}
public ElseNode(NodesList nodes)
{
Nodes = nodes;
}
