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 * The Universal Permissive License (UPL), Version 1.0
 *
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 * person obtaining a copy of this software, associated documentation and/or
 * data (collectively the "Software"), free of charge and under any and all
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 * unmodified Software as contributed to or provided by such licensor, or (ii)
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 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
 * one is included with the Software each a "Larger Work" to which the Software
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 * Software and the Larger Work(s), and to sublicense the foregoing rights on
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package com.oracle.truffle.js.nodes.cast;

import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.js.nodes.JavaScriptBaseNode;
import com.oracle.truffle.js.nodes.cast.JSToBigIntNodeGen.JSToBigIntInnerConversionNodeGen;
import com.oracle.truffle.js.runtime.BigInt;
import com.oracle.truffle.js.runtime.Errors;
import com.oracle.truffle.js.runtime.JSErrorType;
import com.oracle.truffle.js.runtime.Symbol;

public abstract class JSToBigIntNode extends JavaScriptBaseNode {

    public abstract Object execute(Object value);

    public final BigInt executeBigInteger(Object value) {
        return (BigInt) execute(value);
    }

    public static JSToBigIntNode create() {
        return JSToBigIntNodeGen.create();
    }

    @Specialization
    protected Object doIt(Object value,
                    @Cached("createHintNumber()") JSToPrimitiveNode toPrimitiveNode,
                    @Cached("create()") JSToBigIntInnerConversionNode innerConversionNode) {

        return innerConversionNode.execute(toPrimitiveNode.execute(value));
    }

    public abstract static class JSToBigIntInnerConversionNode extends JavaScriptBaseNode {

        public static JSToBigIntInnerConversionNode create() {
            return JSToBigIntInnerConversionNodeGen.create();
        }

        public abstract Object execute(Object value);

        public final BigInt executeBigInteger(Object value) {
            return (BigInt) execute(value);
        }

        @Specialization
        protected static BigInt doBoolean(boolean value) {
            return value ? BigInt.ONE : BigInt.ZERO;
        }

        @Specialization
        protected static BigInt doBigInt(BigInt value) {
            return value;
        }

        @Specialization(guards = "isNumber(value)")
        protected static BigInt doDouble(Object value) {
            throw Errors.createErrorCanNotConvertToBigInt(JSErrorType.TypeError, value);
        }

        @Specialization
        protected static BigInt doSymbol(Symbol value) {
            throw Errors.createErrorCanNotConvertToBigInt(JSErrorType.TypeError, value);
        }

        @Specialization(guards = "isNullOrUndefined(value)")
        protected static BigInt doNullOrUndefined(Object value) {
            throw Errors.createErrorCanNotConvertToBigInt(JSErrorType.TypeError, value);
        }

        @Specialization
        protected static BigInt doString(String value) {
            try {
                return BigInt.valueOf(value);
            } catch (NumberFormatException e) {
                throw Errors.createErrorCanNotConvertToBigInt(JSErrorType.SyntaxError, value);
            }
        }
    }
}