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Truffle is a multi-language framework for executing dynamic languages
that achieves high performance when combined with Graal.
/*
* Copyright (c) 2018, 2020, 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
*
* (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
* either these or other terms.
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*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
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package com.oracle.truffle.polyglot;
import java.lang.reflect.Type;
import java.util.Arrays;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.interop.UnsupportedTypeException;
final class HostInteropErrors {
private HostInteropErrors() {
}
@TruffleBoundary
static RuntimeException nullCoercion(PolyglotLanguageContext languageContext, Object nullValue, Type targetType) {
throw PolyglotEngineException.nullPointer(String.format("Cannot convert null value %s to Java type '%s'.",
getValueInfo(languageContext, nullValue),
targetType.getTypeName()));
}
@TruffleBoundary
static RuntimeException cannotConvertPrimitive(PolyglotLanguageContext languageContext, Object value, Class targetType) {
String reason;
if (ToHostNode.isPrimitiveTarget(targetType)) {
reason = "Invalid or lossy primitive coercion.";
} else {
reason = "Unsupported target type.";
}
return PolyglotEngineException.classCast(String.format("Cannot convert %s to Java type '%s': %s",
getValueInfo(languageContext, value),
targetType.getTypeName(),
reason));
}
@TruffleBoundary
static RuntimeException cannotConvert(PolyglotLanguageContext languageContext, Object value, Type targetType, String reason) {
return PolyglotEngineException.classCast(String.format("Cannot convert %s to Java type '%s': %s",
getValueInfo(languageContext, value),
targetType.getTypeName(),
reason));
}
@TruffleBoundary
static RuntimeException invalidListIndex(PolyglotLanguageContext context, Object receiver, Type componentType, int index) {
String message = String.format("Invalid index %s for List<%s> %s.", index, formatComponentType(componentType), getValueInfo(context, receiver));
throw PolyglotEngineException.arrayIndexOutOfBounds(message);
}
@TruffleBoundary
static RuntimeException invalidArrayIndex(PolyglotLanguageContext 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 PolyglotEngineException.arrayIndexOutOfBounds(message);
}
private static Object formatComponentType(Type componentType) {
return (componentType == null || componentType == Object.class) ? "Object" : componentType.getTypeName();
}
@TruffleBoundary
static RuntimeException arrayReadUnsupported(PolyglotLanguageContext context, Object receiver, Type componentType) {
String message = String.format("Unsupported array read operation for %s[] %s.", formatComponentType(componentType), getValueInfo(context, receiver));
throw PolyglotEngineException.unsupported(message);
}
@TruffleBoundary
static RuntimeException listUnsupported(PolyglotLanguageContext context, Object receiver, Type componentType, String operation) {
String message = String.format("Unsupported operation %s for List<%s> %s.", operation, formatComponentType(componentType), getValueInfo(context, receiver));
throw PolyglotEngineException.unsupported(message);
}
@TruffleBoundary
static RuntimeException mapUnsupported(PolyglotLanguageContext context, Object receiver, Type keyType, Type valueType, String operation) {
String message = String.format("Unsupported operation %s for Map<%s, %s> %s.", operation, formatComponentType(keyType), formatComponentType(valueType), getValueInfo(context, receiver));
throw PolyglotEngineException.unsupported(message);
}
@TruffleBoundary
static RuntimeException invalidMapValue(PolyglotLanguageContext context, Object receiver, Type keyType, Type valueType, Object identifier, Object value) {
throw PolyglotEngineException.classCast(
String.format("Invalid value %s for Map<%s, %s> %s and identifier '%s'.",
getValueInfo(context, value), formatComponentType(keyType), formatComponentType(valueType), getValueInfo(context, receiver), identifier));
}
@TruffleBoundary
static RuntimeException invalidMapIdentifier(PolyglotLanguageContext context, Object receiver, Type keyType, Type valueType, Object identifier) {
if (identifier instanceof Number || identifier instanceof String) {
throw PolyglotEngineException.illegalArgument(
String.format("Invalid or unmodifiable value for identifier '%s' for Map<%s, %s> %s.", identifier, formatComponentType(keyType),
formatComponentType(valueType), getValueInfo(context, receiver)));
} else {
throw PolyglotEngineException.illegalArgument(
String.format("Illegal identifier type '%s' for Map<%s, %s> %s.", identifier == null ? "null" : identifier.getClass().getTypeName(), formatComponentType(keyType),
formatComponentType(valueType), getValueInfo(context, receiver)));
}
}
@TruffleBoundary
static RuntimeException invalidListValue(PolyglotLanguageContext context, Object receiver, Type componentType, int identifier, Object value) {
throw PolyglotEngineException.classCast(
String.format("Invalid value %s for List<%s> %s and index %s.",
getValueInfo(context, value), formatComponentType(componentType), getValueInfo(context, receiver), identifier));
}
@TruffleBoundary
static RuntimeException invalidExecuteArgumentType(PolyglotLanguageContext 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 PolyglotEngineException.illegalArgument(message);
}
@TruffleBoundary
static RuntimeException invalidInstantiateArgumentType(PolyglotLanguageContext context, Object receiver, Object[] arguments) {
String[] formattedArgs = formatArgs(context, arguments);
String message = String.format("Invalid argument when instantiating %s with arguments %s.", getValueInfo(context, receiver), Arrays.asList(formattedArgs));
throw PolyglotEngineException.illegalArgument(message);
}
@TruffleBoundary
static RuntimeException invalidInstantiateArity(PolyglotLanguageContext context, Object receiver, Object[] arguments, int expected, int actual) {
String[] formattedArgs = formatArgs(context, arguments);
String message = String.format("Invalid argument count when instantiating %s with arguments %s. Expected %s argument(s) but got %s.",
getValueInfo(context, receiver), Arrays.asList(formattedArgs), expected, actual);
throw PolyglotEngineException.illegalArgument(message);
}
@TruffleBoundary
static RuntimeException invalidExecuteArity(PolyglotLanguageContext context, Object receiver, Object[] arguments, int expected, int actual) {
String[] formattedArgs = formatArgs(context, arguments);
String message = String.format("Invalid argument count when executing %s with arguments %s. Expected %s argument(s) but got %s.",
getValueInfo(context, receiver), Arrays.asList(formattedArgs), expected, actual);
throw PolyglotEngineException.illegalArgument(message);
}
@TruffleBoundary
static RuntimeException invokeUnsupported(PolyglotLanguageContext context, Object receiver, String identifier) {
String message = String.format("Unsupported operation identifier '%s' and object %s. Identifier is not executable or instantiable.", identifier, getValueInfo(context, receiver));
throw PolyglotEngineException.unsupported(message);
}
@TruffleBoundary
static RuntimeException executeUnsupported(PolyglotLanguageContext context, Object receiver) {
String message = String.format("Unsupported operation for object %s. Object is not executable or instantiable.", getValueInfo(context, receiver));
throw PolyglotEngineException.unsupported(message);
}
private static String[] formatArgs(PolyglotLanguageContext 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(PolyglotLanguageContext languageContext, Object value) {
return PolyglotValue.getValueInfo(languageContext, 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());
}
}