/*
 * Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package org.graalvm.compiler.hotspot.replacements;

import static org.graalvm.compiler.hotspot.meta.HotSpotForeignCallDescriptor.Reexecutability.REEXECUTABLE;
import static org.graalvm.compiler.hotspot.meta.HotSpotForeignCallDescriptor.Transition.LEAF;
import static org.graalvm.compiler.hotspot.meta.HotSpotForeignCallsProviderImpl.NO_LOCATIONS;
import static org.graalvm.compiler.replacements.nodes.CStringConstant.cstring;

import java.io.PrintStream;

import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;
import org.graalvm.compiler.graph.Node.ConstantNodeParameter;
import org.graalvm.compiler.graph.Node.NodeIntrinsic;
import org.graalvm.compiler.hotspot.meta.HotSpotForeignCallDescriptor;
import org.graalvm.compiler.nodes.extended.ForeignCallNode;
import org.graalvm.compiler.word.Word;

import jdk.vm.ci.meta.JavaKind;

//JaCoCo Exclude

Provides PrintStream-like logging facility.
/** * Provides {@link PrintStream}-like logging facility. */
public final class Log { public static final HotSpotForeignCallDescriptor LOG_PRIMITIVE = new HotSpotForeignCallDescriptor(LEAF, REEXECUTABLE, NO_LOCATIONS, "logPrimitive", void.class, int.class, long.class, boolean.class); public static final HotSpotForeignCallDescriptor LOG_OBJECT = new HotSpotForeignCallDescriptor(LEAF, REEXECUTABLE, NO_LOCATIONS, "logObject", void.class, Object.class, boolean.class, boolean.class); public static final HotSpotForeignCallDescriptor LOG_PRINTF = new HotSpotForeignCallDescriptor(LEAF, REEXECUTABLE, NO_LOCATIONS, "logPrintf", void.class, Word.class, long.class, long.class, long.class); @NodeIntrinsic(ForeignCallNode.class) private static native void log(@ConstantNodeParameter ForeignCallDescriptor logObject, Object object, boolean asString, boolean newline); @NodeIntrinsic(ForeignCallNode.class) private static native void log(@ConstantNodeParameter ForeignCallDescriptor logPrimitive, int typeChar, long value, boolean newline); @NodeIntrinsic(ForeignCallNode.class) private static native void printf(@ConstantNodeParameter ForeignCallDescriptor logPrintf, Word format, long v1, long v2, long v3); public static void print(boolean value) { log(LOG_PRIMITIVE, JavaKind.Boolean.getTypeChar(), value ? 1L : 0L, false); } public static void print(byte value) { log(LOG_PRIMITIVE, JavaKind.Byte.getTypeChar(), value, false); } public static void print(char value) { log(LOG_PRIMITIVE, JavaKind.Char.getTypeChar(), value, false); } public static void print(short value) { log(LOG_PRIMITIVE, JavaKind.Short.getTypeChar(), value, false); } public static void print(int value) { log(LOG_PRIMITIVE, JavaKind.Int.getTypeChar(), value, false); } public static void print(long value) { log(LOG_PRIMITIVE, JavaKind.Long.getTypeChar(), value, false); }
Prints a formatted string to the log stream.
Params:
  • format – a C style printf format value that can contain at most one conversion specifier (i.e., a sequence of characters starting with '%').
  • value – the value associated with the conversion specifier
/** * Prints a formatted string to the log stream. * * @param format a C style printf format value that can contain at most one conversion specifier * (i.e., a sequence of characters starting with '%'). * @param value the value associated with the conversion specifier */
public static void printf(String format, long value) { printf(LOG_PRINTF, cstring(format), value, 0L, 0L); } public static void printf(String format, long v1, long v2) { printf(LOG_PRINTF, cstring(format), v1, v2, 0L); } public static void printf(String format, long v1, long v2, long v3) { printf(LOG_PRINTF, cstring(format), v1, v2, v3); } public static void print(float value) { if (Float.isNaN(value)) { print("NaN"); } else if (value == Float.POSITIVE_INFINITY) { print("Infinity"); } else if (value == Float.NEGATIVE_INFINITY) { print("-Infinity"); } else { log(LOG_PRIMITIVE, JavaKind.Float.getTypeChar(), Float.floatToRawIntBits(value), false); } } public static void print(double value) { if (Double.isNaN(value)) { print("NaN"); } else if (value == Double.POSITIVE_INFINITY) { print("Infinity"); } else if (value == Double.NEGATIVE_INFINITY) { print("-Infinity"); } else { log(LOG_PRIMITIVE, JavaKind.Double.getTypeChar(), Double.doubleToRawLongBits(value), false); } } public static void print(String value) { log(LOG_OBJECT, value, true, false); } public static void printObject(Object o) { log(LOG_OBJECT, o, false, false); } public static void println(boolean value) { log(LOG_PRIMITIVE, JavaKind.Boolean.getTypeChar(), value ? 1L : 0L, true); } public static void println(byte value) { log(LOG_PRIMITIVE, JavaKind.Byte.getTypeChar(), value, true); } public static void println(char value) { log(LOG_PRIMITIVE, JavaKind.Char.getTypeChar(), value, true); } public static void println(short value) { log(LOG_PRIMITIVE, JavaKind.Short.getTypeChar(), value, true); } public static void println(int value) { log(LOG_PRIMITIVE, JavaKind.Int.getTypeChar(), value, true); } public static void println(long value) { log(LOG_PRIMITIVE, JavaKind.Long.getTypeChar(), value, true); } public static void println(float value) { if (Float.isNaN(value)) { println("NaN"); } else if (value == Float.POSITIVE_INFINITY) { println("Infinity"); } else if (value == Float.NEGATIVE_INFINITY) { println("-Infinity"); } else { log(LOG_PRIMITIVE, JavaKind.Float.getTypeChar(), Float.floatToRawIntBits(value), true); } } public static void println(double value) { if (Double.isNaN(value)) { println("NaN"); } else if (value == Double.POSITIVE_INFINITY) { println("Infinity"); } else if (value == Double.NEGATIVE_INFINITY) { println("-Infinity"); } else { log(LOG_PRIMITIVE, JavaKind.Double.getTypeChar(), Double.doubleToRawLongBits(value), true); } } public static void println(String value) { log(LOG_OBJECT, value, true, true); } public static void printlnObject(Object o) { log(LOG_OBJECT, o, false, true); } public static void println() { println(""); } }