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 * (a) the Software, and
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package com.oracle.graal.python.builtins.modules.csv;

import com.oracle.graal.python.PythonLanguage;
import com.oracle.graal.python.builtins.Builtin;
import com.oracle.graal.python.builtins.CoreFunctions;
import com.oracle.graal.python.builtins.PythonBuiltinClassType;
import com.oracle.graal.python.builtins.PythonBuiltins;
import com.oracle.graal.python.nodes.function.PythonBuiltinBaseNode;
import com.oracle.graal.python.nodes.function.builtins.PythonUnaryBuiltinNode;
import com.oracle.graal.python.runtime.ExecutionContext.IndirectCallContext;
import com.oracle.truffle.api.dsl.GenerateNodeFactory;
import com.oracle.truffle.api.dsl.NodeFactory;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.VirtualFrame;

import java.util.List;

import static com.oracle.graal.python.nodes.SpecialMethodNames.__ITER__;
import static com.oracle.graal.python.nodes.SpecialMethodNames.__NEXT__;

@CoreFunctions(extendClasses = PythonBuiltinClassType.CSVReader)
public final class CSVReaderBuiltins extends PythonBuiltins {

    @Override
    protected List<? extends NodeFactory<? extends PythonBuiltinBaseNode>> getNodeFactories() {
        return CSVReaderBuiltinsFactory.getFactories();
    }

    @Builtin(name = __ITER__, minNumOfPositionalArgs = 1)
    @GenerateNodeFactory
    public abstract static class IterReaderNode extends PythonUnaryBuiltinNode {
        @Specialization
        Object iter(CSVReader self) {
            return self;
        }
    }

    @Builtin(name = __NEXT__, minNumOfPositionalArgs = 1)
    @GenerateNodeFactory
    public abstract static class NextReaderNode extends PythonUnaryBuiltinNode {
        @Specialization
        Object nextPos(VirtualFrame frame, CSVReader self) {

            self.parseReset();

            PythonLanguage language = PythonLanguage.get(this);
            Object state = IndirectCallContext.enter(frame, language, getContext(), this);

            try {
                return self.parseIterableInput(this);
            } finally {
                IndirectCallContext.exit(frame, language, getContext(), state);
            }
        }
    }

    @Builtin(name = "dialect", minNumOfPositionalArgs = 1, isGetter = true)
    @GenerateNodeFactory
    abstract static class GetDialectNode extends PythonUnaryBuiltinNode {
        @Specialization
        static CSVDialect doIt(CSVReader self) {
            return self.dialect;
        }
    }

    @Builtin(name = "line_num", minNumOfPositionalArgs = 1, isGetter = true)
    @GenerateNodeFactory
    abstract static class GetLineNumNode extends PythonUnaryBuiltinNode {
        @Specialization
        static int doIt(CSVReader self) {
            return self.lineNum;
        }
    }
}
