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Add bytecode count based debug hooks.

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This commit is contained in:
James Roseborough
2009-10-27 13:41:30 +00:00
parent d1debdf2ec
commit 0b6cd02bc6
1 changed files with 13 additions and 3 deletions
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12
src/core/org/luaj/vm2/lib/DebugLib.java
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@@ -88,6 +88,7 @@ public class DebugLib extends VarArgFunction {
private static final LuaString FIELD = LuaString.valueOf("field");
private static final LuaString CALL = LuaString.valueOf("call");
private static final LuaString LINE = LuaString.valueOf("line");
private static final LuaString COUNT = LuaString.valueOf("count");
private static final LuaString RETURN = LuaString.valueOf("return");
private static final LuaString TAILRETURN = LuaString.valueOf("tail return");
@@ -238,7 +239,7 @@ public class DebugLib extends VarArgFunction {
private DebugInfo[] debugInfo = new DebugInfo[LuaThread.MAX_CALLSTACK+1];
private LuaValue hookfunc;
private boolean hookcall,hookline,hookrtrn,inhook;
private int hookcount;
private int hookcount,hookcodes;
private int line;
private DebugState(LuaThread thread) {
this.thread = thread;
@@ -360,14 +361,23 @@ public class DebugLib extends VarArgFunction {
DebugInfo di = ds.getDebugInfo();
if(TRACE)Print.printState(di.closure, pc, di.stack, top, di.varargs);
ds.getDebugInfo().bytecode( pc, extras, top );
if ( ds.hookcount > 0 ) {
if ( ++ds.hookcodes >= ds.hookcount ) {
ds.hookcodes = 0;
ds.callHookFunc( ds, COUNT, LuaValue.NIL );
}
}
if ( ds.hookline ) {
int newline = di.currentline();
if ( newline != ds.line ) {
int c = di.closure.p.code[pc];
if ( (c&0x3f) != Lua.OP_JMP || ((c>>>14)-0x1ffff) >= 0 ) {
ds.line = newline;
ds.callHookFunc( ds, LINE, LuaValue.valueOf(newline) );
}
}
}
}
// ------------------- library function implementations -----------------