private InterpretedFunction(InterpreterData idata, object staticSecurityDomain)
{
this.idata = idata;
// Always get Context from the current thread to
// avoid security breaches via passing mangled Context instances
// with bogus SecurityController
Context cx = Context.CurrentContext;
SecurityController sc = cx.SecurityController;
object dynamicDomain;
if (sc != null)
{
dynamicDomain = sc.getDynamicSecurityDomain(staticSecurityDomain);
}
else
{
if (staticSecurityDomain != null)
{
throw new ArgumentException();
}
dynamicDomain = null;
}
this.securityController = sc;
this.securityDomain = dynamicDomain;
}
/// <summary> Create script from compiled bytecode.</summary>
internal static InterpretedFunction createScript(InterpreterData idata, object staticSecurityDomain)
{
InterpretedFunction f;
f = new InterpretedFunction(idata, staticSecurityDomain);
return(f);
}
internal InterpreterData(InterpreterData parent)
{
this.parentData = parent;
this.languageVersion = parent.languageVersion;
this.itsSourceFile = parent.itsSourceFile;
this.encodedSource = parent.encodedSource;
Init();
}
internal InterpreterData(InterpreterData parent)
{
this.parentData = parent;
this.languageVersion = parent.languageVersion;
this.itsSourceFile = parent.itsSourceFile;
this.encodedSource = parent.encodedSource;
Init ();
}
private InterpretedFunction(InterpreterData idata, object staticSecurityDomain)
{
this.idata = idata;
// Always get Context from the current thread to
// avoid security breaches via passing mangled Context instances
// with bogus SecurityController
Context cx = Context.CurrentContext;
SecurityController sc = cx.SecurityController;
object dynamicDomain;
if (sc != null) {
dynamicDomain = sc.getDynamicSecurityDomain (staticSecurityDomain);
}
else {
if (staticSecurityDomain != null) {
throw new ArgumentException ();
}
dynamicDomain = null;
}
this.securityController = sc;
this.securityDomain = dynamicDomain;
}
private InterpretedFunction(InterpretedFunction parent, int index)
{
this.idata = parent.idata.itsNestedFunctions [index];
this.securityController = parent.securityController;
this.securityDomain = parent.securityDomain;
}
/// <summary> Create function compiled from Function(...) constructor.</summary>
internal static InterpretedFunction createFunction(Context cx, IScriptable scope, InterpreterData idata, object staticSecurityDomain)
{
InterpretedFunction f;
f = new InterpretedFunction(idata, staticSecurityDomain);
f.initInterpretedFunction(cx, scope);
return(f);
}
void generateNestedFunctions ()
{
int functionCount = scriptOrFn.FunctionCount;
if (functionCount == 0)
return;
InterpreterData [] array = new InterpreterData [functionCount];
for (int i = 0; i != functionCount; i++) {
FunctionNode def = scriptOrFn.getFunctionNode (i);
Interpreter jsi = new Interpreter ();
jsi.compilerEnv = compilerEnv;
jsi.scriptOrFn = def;
jsi.itsData = new InterpreterData (itsData);
jsi.generateFunctionICode ();
array [i] = jsi.itsData;
}
itsData.itsNestedFunctions = array;
}
public virtual object Compile (CompilerEnvirons compilerEnv, ScriptOrFnNode tree, string encodedSource, bool returnFunction)
{
this.compilerEnv = compilerEnv;
new NodeTransformer ().transform (tree);
if (Token.printTrees) {
System.Console.Out.WriteLine (tree.toStringTree (tree));
}
if (returnFunction) {
tree = tree.getFunctionNode (0);
}
scriptOrFn = tree;
itsData = new InterpreterData (compilerEnv.LanguageVersion, scriptOrFn.SourceName, encodedSource);
itsData.topLevel = true;
if (returnFunction) {
generateFunctionICode ();
}
else {
generateICodeFromTree (scriptOrFn);
}
return itsData;
}
internal static string GetEncodedSource (InterpreterData idata)
{
if (idata.encodedSource == null) {
return null;
}
return idata.encodedSource.Substring (idata.encodedSourceStart, (idata.encodedSourceEnd) - (idata.encodedSourceStart));
}
internal static int [] getLineNumbers (InterpreterData data)
{
UintMap presentLines = new UintMap ();
sbyte [] iCode = data.itsICode;
int iCodeLength = iCode.Length;
for (int pc = 0; pc != iCodeLength; ) {
int bytecode = iCode [pc];
int span = bytecodeSpan (bytecode);
if (bytecode == Icode_LINE) {
if (span != 3)
Context.CodeBug ();
int line = GetIndex (iCode, pc + 1);
presentLines.put (line, 0);
}
pc += span;
}
return presentLines.Keys;
}
static void dumpICode (InterpreterData idata)
{
if (!Token.printICode) {
return;
}
sbyte [] iCode = idata.itsICode;
int iCodeLength = iCode.Length;
string [] strings = idata.itsStringTable;
System.IO.TextWriter sw = Console.Out;
sw.WriteLine ("ICode dump, for " + idata.itsName + ", length = " + iCodeLength);
sw.WriteLine ("MaxStack = " + idata.itsMaxStack);
int indexReg = 0;
for (int pc = 0; pc < iCodeLength; ) {
sw.Flush ();
sw.Write (" [" + pc + "] ");
int token = iCode [pc];
int icodeLength = bytecodeSpan (token);
string tname = bytecodeName (token);
int old_pc = pc;
++pc;
switch (token) {
default:
if (icodeLength != 1)
Context.CodeBug ();
sw.WriteLine (tname);
break;
case Icode_GOSUB:
case Token.GOTO:
case Token.IFEQ:
case Token.IFNE:
case Icode_IFEQ_POP:
case Icode_LEAVEDQ: {
int newPC = pc + GetShort (iCode, pc) - 1;
sw.WriteLine (tname + " " + newPC);
pc += 2;
break;
}
case Icode_VAR_INC_DEC:
case Icode_NAME_INC_DEC:
case Icode_PROP_INC_DEC:
case Icode_ELEM_INC_DEC:
case Icode_REF_INC_DEC: {
int incrDecrType = iCode [pc];
sw.WriteLine (tname + " " + incrDecrType);
++pc;
break;
}
case Icode_CALLSPECIAL: {
int callType = iCode [pc] & 0xFF;
bool isNew = (iCode [pc + 1] != 0);
int line = GetIndex (iCode, pc + 2);
sw.WriteLine (tname + " " + callType + " " + isNew + " " + indexReg + " " + line);
pc += 4;
break;
}
case Token.CATCH_SCOPE: {
bool afterFisrtFlag = (iCode [pc] != 0);
sw.WriteLine (tname + " " + afterFisrtFlag);
++pc;
}
break;
case Token.REGEXP:
sw.WriteLine (tname + " " + idata.itsRegExpLiterals [indexReg]);
break;
case Token.OBJECTLIT:
case Icode_SPARE_ARRAYLIT:
sw.WriteLine (tname + " " + idata.literalIds [indexReg]);
break;
case Icode_CLOSURE_EXPR:
case Icode_CLOSURE_STMT:
sw.WriteLine (tname + " " + idata.itsNestedFunctions [indexReg]);
break;
case Token.CALL:
case Icode_TAIL_CALL:
case Token.REF_CALL:
case Token.NEW:
sw.WriteLine (tname + ' ' + indexReg);
break;
case Token.THROW: {
int line = GetIndex (iCode, pc);
sw.WriteLine (tname + " : " + line);
pc += 2;
break;
}
case Icode_SHORTNUMBER: {
int value = GetShort (iCode, pc);
sw.WriteLine (tname + " " + value);
pc += 2;
break;
}
case Icode_INTNUMBER: {
int value = GetInt (iCode, pc);
sw.WriteLine (tname + " " + value);
pc += 4;
break;
}
case Token.NUMBER: {
double value = idata.itsDoubleTable [indexReg];
sw.WriteLine (tname + " " + value);
pc += 2;
break;
}
case Icode_LINE: {
int line = GetIndex (iCode, pc);
sw.WriteLine (tname + " : " + line);
pc += 2;
break;
}
case Icode_REG_STR1: {
string str = strings [0xFF & iCode [pc]];
sw.WriteLine (tname + " \"" + str + '"');
++pc;
break;
}
case Icode_REG_STR2: {
string str = strings [GetIndex (iCode, pc)];
sw.WriteLine (tname + " \"" + str + '"');
pc += 2;
break;
}
case Icode_REG_STR4: {
string str = strings [GetInt (iCode, pc)];
sw.WriteLine (tname + " \"" + str + '"');
pc += 4;
break;
}
case Icode_REG_IND1: {
indexReg = 0xFF & iCode [pc];
sw.WriteLine (tname + " " + indexReg);
++pc;
break;
}
case Icode_REG_IND2: {
indexReg = GetIndex (iCode, pc);
sw.WriteLine (tname + " " + indexReg);
pc += 2;
break;
}
case Icode_REG_IND4: {
indexReg = GetInt (iCode, pc);
sw.WriteLine (tname + " " + indexReg);
pc += 4;
break;
}
case Icode_GETVAR1:
case Icode_SETVAR1:
indexReg = iCode [pc];
sw.WriteLine (tname + " " + indexReg);
++pc;
break;
}
if (old_pc + icodeLength != pc)
Context.CodeBug ();
}
int [] table = idata.itsExceptionTable;
if (table != null) {
sw.WriteLine ("Exception handlers: " + table.Length / EXCEPTION_SLOT_SIZE);
for (int i = 0; i != table.Length; i += EXCEPTION_SLOT_SIZE) {
int tryStart = table [i + EXCEPTION_TRY_START_SLOT];
int tryEnd = table [i + EXCEPTION_TRY_END_SLOT];
int handlerStart = table [i + EXCEPTION_HANDLER_SLOT];
int type = table [i + EXCEPTION_TYPE_SLOT];
int exceptionLocal = table [i + EXCEPTION_LOCAL_SLOT];
int scopeLocal = table [i + EXCEPTION_SCOPE_SLOT];
sw.WriteLine (" tryStart=" + tryStart + " tryEnd=" + tryEnd + " handlerStart=" + handlerStart + " type=" + (type == 0 ? "catch" : "finally") + " exceptionLocal=" + exceptionLocal);
}
}
sw.Flush ();
}
private InterpretedFunction(InterpretedFunction parent, int index)
{
this.idata = parent.idata.itsNestedFunctions [index];
this.securityController = parent.securityController;
this.securityDomain = parent.securityDomain;
}
/// <summary> Create script from compiled bytecode.</summary>
internal static InterpretedFunction createScript(InterpreterData idata, object staticSecurityDomain)
{
InterpretedFunction f;
f = new InterpretedFunction (idata, staticSecurityDomain);
return f;
}
/// <summary> Create function compiled from Function(...) constructor.</summary>
internal static InterpretedFunction createFunction(Context cx, IScriptable scope, InterpreterData idata, object staticSecurityDomain)
{
InterpretedFunction f;
f = new InterpretedFunction (idata, staticSecurityDomain);
f.initInterpretedFunction (cx, scope);
return f;
}
