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package com.oracle.graal.python.nodes.call.special;

import com.oracle.graal.python.builtins.objects.function.PBuiltinFunction;
import com.oracle.graal.python.builtins.objects.function.PKeyword;
import com.oracle.graal.python.builtins.objects.method.PBuiltinMethod;
import com.oracle.graal.python.nodes.builtins.FunctionNodes.GetCallTargetNode;
import com.oracle.graal.python.nodes.call.BoundDescriptor;
import com.oracle.graal.python.nodes.call.CallNode;
import com.oracle.graal.python.nodes.function.builtins.PythonQuaternaryBuiltinNode;
import com.oracle.truffle.api.RootCallTarget;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.GenerateUncached;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.Frame;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.profiles.ConditionProfile;

@GenerateUncached
public abstract class CallQuaternaryMethodNode extends AbstractCallMethodNode {
    public static CallQuaternaryMethodNode create() {
        return CallQuaternaryMethodNodeGen.create();
    }

    public static CallQuaternaryMethodNode getUncached() {
        return CallQuaternaryMethodNodeGen.getUncached();
    }

    public abstract Object execute(Frame frame, Object callable, Object arg1, Object arg2, Object arg3, Object arg4);

    @Specialization(guards = {"isSingleContext()", "func == cachedFunc", "builtinNode != null", "frame != null || unusedFrame"}, //
                    limit = "getCallSiteInlineCacheMaxDepth()")
    Object callSingle(VirtualFrame frame, @SuppressWarnings("unused") PBuiltinFunction func, Object arg1, Object arg2, Object arg3, Object arg4,
                    @SuppressWarnings("unused") @Cached("func") PBuiltinFunction cachedFunc,
                    @Cached("getQuaternary(frame, func)") PythonQuaternaryBuiltinNode builtinNode,
                    @SuppressWarnings("unused") @Cached("frameIsUnused(builtinNode)") boolean unusedFrame) {
        return builtinNode.execute(frame, arg1, arg2, arg3, arg4);
    }

    @Specialization(guards = {"func.getCallTarget() == ct", "builtinNode != null", "frame != null || unusedFrame"}, //
                    limit = "getCallSiteInlineCacheMaxDepth()")
    Object call(VirtualFrame frame, @SuppressWarnings("unused") PBuiltinFunction func, Object arg1, Object arg2, Object arg3, Object arg4,
                    @SuppressWarnings("unused") @Cached("func.getCallTarget()") RootCallTarget ct,
                    @Cached("getQuaternary(frame, func)") PythonQuaternaryBuiltinNode builtinNode,
                    @SuppressWarnings("unused") @Cached("frameIsUnused(builtinNode)") boolean unusedFrame) {
        return builtinNode.execute(frame, arg1, arg2, arg3, arg4);
    }

    @Specialization(guards = {"isSingleContext()", "func == cachedFunc", "builtinNode != null", "!takesSelfArg",
                    "frame != null || unusedFrame"}, limit = "getCallSiteInlineCacheMaxDepth()")
    Object callMethodSingle(VirtualFrame frame, @SuppressWarnings("unused") PBuiltinMethod func, Object arg1, Object arg2, Object arg3, Object arg4,
                    @SuppressWarnings("unused") @Cached(value = "func", weak = true) PBuiltinMethod cachedFunc,
                    @SuppressWarnings("unused") @Cached("takesSelfArg(func)") boolean takesSelfArg,
                    @Cached("getQuaternary(frame, func.getFunction())") PythonQuaternaryBuiltinNode builtinNode,
                    @SuppressWarnings("unused") @Cached("frameIsUnused(builtinNode)") boolean unusedFrame) {
        return builtinNode.execute(frame, arg1, arg2, arg3, arg4);
    }

    @Specialization(guards = {"builtinNode != null", "getCallTarget(func, getCt) == ct", "!takesSelfArg",
                    "frame != null || unusedFrame"}, limit = "getCallSiteInlineCacheMaxDepth()")
    Object callMethod(VirtualFrame frame, @SuppressWarnings("unused") PBuiltinMethod func, Object arg1, Object arg2, Object arg3, Object arg4,
                    @SuppressWarnings("unused") @Cached GetCallTargetNode getCt,
                    @SuppressWarnings("unused") @Cached("getCallTarget(func, getCt)") RootCallTarget ct,
                    @SuppressWarnings("unused") @Cached("takesSelfArg(func)") boolean takesSelfArg,
                    @Cached("getQuaternary(frame, func.getFunction())") PythonQuaternaryBuiltinNode builtinNode,
                    @SuppressWarnings("unused") @Cached("frameIsUnused(builtinNode)") boolean unusedFrame) {
        return builtinNode.execute(frame, arg1, arg2, arg3, arg4);
    }

    @Specialization(replaces = {"callSingle", "call", "callMethodSingle", "callMethod"})
    Object generic(VirtualFrame frame, Object func, Object arg1, Object arg2, Object arg3, Object arg4,
                    @Cached CallNode callNode,
                    @Cached ConditionProfile isBoundProfile) {
        if (isBoundProfile.profile(func instanceof BoundDescriptor)) {
            return callNode.execute(frame, ((BoundDescriptor) func).descriptor, new Object[]{arg2, arg3, arg4}, PKeyword.EMPTY_KEYWORDS);
        } else {
            return callNode.execute(frame, func, new Object[]{arg1, arg2, arg3, arg4}, PKeyword.EMPTY_KEYWORDS);
        }
    }
}
