src/game/java/net/minecraft/commands/execution/tasks/CallFunction.java

package net.minecraft.commands.execution.tasks;

import java.util.List;
import net.minecraft.commands.CommandResultCallback;
import net.minecraft.commands.ExecutionCommandSource;
import net.minecraft.commands.execution.CommandQueueEntry;
import net.minecraft.commands.execution.ExecutionContext;
import net.minecraft.commands.execution.Frame;
import net.minecraft.commands.execution.TraceCallbacks;
import net.minecraft.commands.execution.UnboundEntryAction;
import net.minecraft.commands.functions.InstantiatedFunction;

public class CallFunction<T extends ExecutionCommandSource<T>> implements UnboundEntryAction<T> {
    private final InstantiatedFunction<T> function;
    private final CommandResultCallback resultCallback;
    private final boolean returnParentFrame;

    public CallFunction(InstantiatedFunction<T> p_311175_, CommandResultCallback p_310950_, boolean p_309425_) {
        this.function = p_311175_;
        this.resultCallback = p_310950_;
        this.returnParentFrame = p_309425_;
    }

    public void execute(T p_312557_, ExecutionContext<T> p_312618_, Frame p_310825_) {
        p_312618_.incrementCost();
        List<UnboundEntryAction<T>> list = this.function.entries();
        TraceCallbacks tracecallbacks = p_312618_.tracer();
        if (tracecallbacks != null) {
            tracecallbacks.onCall(p_310825_.depth(), this.function.id(), this.function.entries().size());
        }

        int i = p_310825_.depth() + 1;
        Frame.FrameControl frame$framecontrol = this.returnParentFrame ? p_310825_.frameControl() : p_312618_.frameControlForDepth(i);
        Frame frame = new Frame(i, this.resultCallback, frame$framecontrol);
        ContinuationTask.schedule(p_312618_, frame, list, (p_310328_, p_313182_) -> new CommandQueueEntry<>(p_310328_, p_313182_.bind(p_312557_)));
    }
}