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Shaded fat Jar for pkl-config-java, a Java config library based on the Pkl config language.
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/*
 * Copyright (c) 2018, 2021, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * The Universal Permissive License (UPL), Version 1.0
 *
 * Subject to the condition set forth below, permission is hereby granted to any
 * person obtaining a copy of this software, associated documentation and/or
 * data (collectively the "Software"), free of charge and under any and all
 * copyright rights in the Software, and any and all patent rights owned or
 * freely licensable by each licensor hereunder covering either (i) the
 * unmodified Software as contributed to or provided by such licensor, or (ii)
 * the Larger Works (as defined below), to deal in both
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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
 * is contributed by such licensors),
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 * Software and the Larger Work(s), and to sublicense the foregoing rights on
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package org.pkl.thirdparty.truffle.host;

import java.lang.reflect.Type;
import java.util.Arrays;

import org.pkl.thirdparty.truffle.api.CompilerDirectives.TruffleBoundary;
import org.pkl.thirdparty.truffle.api.interop.UnsupportedTypeException;

final class HostInteropErrors {

    private HostInteropErrors() {
    }

    @TruffleBoundary
    static RuntimeException nullCoercion(HostContext context, Object nullValue, Type targetType) {
        throw HostEngineException.nullPointer(context.access, String.format("Cannot convert null value %s to Java type '%s'.",
                        getValueInfo(context, nullValue),
                        targetType.getTypeName()));
    }

    @TruffleBoundary
    static RuntimeException cannotConvertPrimitive(HostContext context, Object value, Class targetType) {
        String reason;
        if (HostToTypeNode.isPrimitiveTarget(targetType)) {
            reason = "Invalid or lossy primitive coercion.";
        } else {
            reason = "Unsupported target type.";
        }
        return HostEngineException.classCast(context.access, String.format("Cannot convert %s to Java type '%s': %s",
                        getValueInfo(context, value),
                        targetType.getTypeName(),
                        reason));
    }

    @TruffleBoundary
    static RuntimeException cannotConvert(HostContext context, Object value, Type targetType, String reason) {
        return HostEngineException.classCast(context.access, String.format("Cannot convert %s to Java type '%s': %s",
                        getValueInfo(context, value),
                        targetType.getTypeName(),
                        reason));
    }

    @TruffleBoundary
    static RuntimeException invalidArrayIndex(HostContext context, Object receiver, Type componentType, int index) {
        String message = String.format("Invalid array index %s for %s[] %s.", index, formatComponentType(componentType), getValueInfo(context, receiver));
        throw HostEngineException.arrayIndexOutOfBounds(context.access, message);
    }

    private static Object formatComponentType(Type componentType) {
        return (componentType == null || componentType == Object.class) ? "Object" : componentType.getTypeName();
    }

    @TruffleBoundary
    static RuntimeException arrayReadUnsupported(HostContext context, Object receiver, Type componentType) {
        String message = String.format("Unsupported array read operation for %s[] %s.", formatComponentType(componentType), getValueInfo(context, receiver));
        throw HostEngineException.unsupported(context.access, message);
    }

    @TruffleBoundary
    static RuntimeException invalidExecuteArgumentType(HostContext context, Object receiver, Object[] arguments) {
        String[] formattedArgs = formatArgs(context, arguments);
        String message = String.format("Invalid argument when executing %s with arguments %s.", getValueInfo(context, receiver), Arrays.asList(formattedArgs));
        throw HostEngineException.illegalArgument(context.access, message);
    }

    @TruffleBoundary
    static RuntimeException invalidExecuteArity(HostContext context, Object receiver, Object[] arguments, int minArity, int maxArity, int actual) {
        String[] formattedArgs = formatArgs(context, arguments);
        String message = String.format("Invalid argument count when executing %s with arguments %s. %s",
                        getValueInfo(context, receiver), Arrays.asList(formattedArgs), formatExpectedArguments(minArity, maxArity, actual));
        throw HostEngineException.illegalArgument(context.access, message);
    }

    private static String[] formatArgs(HostContext context, Object[] arguments) {
        String[] formattedArgs = new String[arguments.length];
        for (int i = 0; i < arguments.length; i++) {
            formattedArgs[i] = getValueInfo(context, arguments[i]);
        }
        return formattedArgs;
    }

    static String getValueInfo(HostContext context, Object value) {
        return context.language.access.getValueInfo(context.internalContext, value);
    }

    @TruffleBoundary
    static UnsupportedTypeException unsupportedTypeException(Object[] args, Throwable e) {
        return UnsupportedTypeException.create(args, e.getMessage());
    }

    @TruffleBoundary
    static UnsupportedTypeException unsupportedTypeException(Object arg, Throwable e) {
        return UnsupportedTypeException.create(new Object[]{arg}, e.getMessage());
    }

    static String formatExpectedArguments(int expectedMinArity, int expectedMaxArity, int actualArity) {
        String actual;
        if (actualArity < 0) {
            actual = "unknown";
        } else {
            actual = String.valueOf(actualArity);
        }
        String expected;
        if (expectedMinArity == expectedMaxArity) {
            expected = String.valueOf(expectedMinArity);
        } else {
            if (expectedMaxArity < 0) {
                expected = expectedMinArity + "+";
            } else {
                expected = expectedMinArity + "-" + expectedMaxArity;
            }
        }
        return String.format("Expected %s argument(s) but got %s.", expected, actual);
    }
}