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package com.oracle.truffle.llvm.nodes.impl.cast;

import com.oracle.truffle.api.dsl.NodeChild;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.llvm.nodes.impl.base.LLVMAddressNode;
import com.oracle.truffle.llvm.nodes.impl.base.LLVMFunctionNode;
import com.oracle.truffle.llvm.nodes.impl.base.integers.LLVMI64Node;
import com.oracle.truffle.llvm.types.LLVMAddress;
import com.oracle.truffle.llvm.types.LLVMFunctionDescriptor;

public abstract class LLVMToFunctionNode extends LLVMFunctionNode {

    @NodeChild(value = "fromNode", type = LLVMI64Node.class)
    public abstract static class LLVMI64ToFunctionNode extends LLVMToFunctionNode {

        @Specialization
        public LLVMFunctionDescriptor executeI64(long from) {
            return LLVMFunctionDescriptor.create((int) from);
        }
    }

    @NodeChild(value = "fromNode", type = LLVMAddressNode.class)
    public abstract static class LLVMAddressToFunctionNode extends LLVMToFunctionNode {

        @Specialization
        public LLVMFunctionDescriptor executeI64(LLVMAddress from) {
            // TODO implement
            throw new AssertionError(from);
        }
    }

}

@@ -2674,67 +2674,64 @@
     
-// TODO implement%0A            throw new AssertionError(from
+return LLVMFunctionDescriptor.create((int) from.getVal()
 );%0A 

Implement address to function pointer cast