Mercurial > hg > graal-jvmci-8
diff c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/Logger.java @ 1422:3483ec571caf
* using reflected objects instead of oops
* removed scratch from allocatable registers
* instanceof xir snippet
* arraylength xir snippet
* exceptionobject xir snippet
* VMEntries and VMExits as interfaces
* calls to VMEntries and VMExits are routet through logging proxies
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Mon, 02 Aug 2010 15:44:38 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/Logger.java Mon Aug 02 15:44:38 2010 -0700 @@ -0,0 +1,86 @@ +package com.sun.hotspot.c1x; + +import java.lang.reflect.*; +import java.util.*; + +public class Logger { + + private static final boolean ENABLED = true; + private static final int SPACING = 2; + private static Deque<Boolean> openStack = new LinkedList<Boolean>(); + private static boolean open = false; + private static int level = 0; + + public static void log(String message) { + if (ENABLED) { + if (open) { + System.out.println("..."); + open = false; + } + System.out.print(space(level)); + System.out.println(message); + } + } + + public static void startScope(String message) { + if (ENABLED) { + if (open) { + System.out.println("..."); + open = false; + } + System.out.print(space(level)); + System.out.print(message); + openStack.push(open); + open = true; + level++; + } + } + + public static void endScope(String message) { + if (ENABLED) { + level--; + if (open) + System.out.println(message); + else + System.out.println(space(level) + "..." + message); + open = openStack.pop(); + } + } + + private static String[] spaces = new String[50]; + + private static String space(int count) { + assert count >= 0; + String result; + if (count >= spaces.length || spaces[count] == null) { + StringBuilder str = new StringBuilder(); + for (int i = 0; i < count * SPACING; i++) + str.append(' '); + result = str.toString(); + if (count < spaces.length) + spaces[count] = result; + } else { + result = spaces[count]; + } + return result; + } + + public static String pretty(Object value) { + if (value instanceof Method) { + return "method \"" + ((Method) value).getName() + "\""; + } else if (value instanceof Class<?>) { + return "class \"" + ((Class<?>) value).getSimpleName() + "\""; + } else if (value instanceof Void) { + return "void"; + } else if (value instanceof Integer) { + if ((Integer) value < 10) + return value.toString(); + return value + " (0x" + Integer.toHexString((Integer) value) + ")"; + } else if (value instanceof Long) { + if ((Long) value < 10) + return value + "l"; + return value + "l (0x" + Long.toHexString((Long) value) + "l)"; + } + return value == null ? "null" : value.toString(); + } +}