private object ImplEval(Context cx, IScriptable scope, IScriptable thisObj, object [] args)
{
if (cx.Version == Context.Versions.JS1_4)
{
Context.ReportWarningById("msg.cant.call.indirect", "eval");
return(ScriptRuntime.evalSpecial(cx, scope, thisObj, args, string.Empty, 0));
}
throw ScriptRuntime.ConstructError("EvalError", ScriptRuntime.GetMessage("msg.cant.call.indirect", "eval"));
}
internal static int AssertValidPrecision(int precision)
{
if (precision < 0 || precision > MAX_PRECISION)
{
string msg = ScriptRuntime.GetMessage("msg.bad.precision", ScriptConvert.ToString(precision));
throw ScriptRuntime.ConstructError("RangeError", msg);
}
return(precision);
}
public void Load(string assembly)
{
try {
ImportAssembly(
this.ParentScope, Assembly.LoadWithPartialName(assembly));
}
catch (FileNotFoundException e) {
throw ScriptRuntime.ConstructError("EvalError", "Failed to load assembly: " + e.Message);
}
}
public virtual void Error(string message, string sourceURI, int line, string lineText, int lineOffset)
{
if (forEval)
{
throw ScriptRuntime.ConstructError("SyntaxError", message, sourceURI, line, lineText, lineOffset);
}
if (chainedReporter != null)
{
chainedReporter.Error(message, sourceURI, line, lineText, lineOffset);
}
else
{
throw RuntimeError(message, sourceURI, line, lineText, lineOffset);
}
}
private static string num_to(double val, object [] args, int zeroArgMode, int oneArgMode, int precisionMin, int precisionOffset)
{
int precision;
if (args.Length == 0)
{
precision = 0;
oneArgMode = zeroArgMode;
}
else
{
/* We allow a larger range of precision than
* ECMA requires; this is permitted by ECMA. */
precision = ScriptConvert.ToInt32(args [0]);
if (precision < precisionMin || precision > MAX_PRECISION)
{
string msg = ScriptRuntime.GetMessage("msg.bad.precision", ScriptConvert.ToString(args [0]));
throw ScriptRuntime.ConstructError("RangeError", msg);
}
}
switch (zeroArgMode)
{
case DTOSTR_FIXED:
return(val.ToString("F" + (precision + precisionOffset), NumberFormatter));
case DTOSTR_STANDARD_EXPONENTIAL:
return(val.ToString("e" + (precision + precisionOffset), NumberFormatter));
case DTOSTR_STANDARD:
if (oneArgMode == DTOSTR_PRECISION)
{
return(val.ToString(precision.ToString(), NumberFormatter));
}
else
{
return(val.ToString(NumberFormatter));
}
}
Context.CodeBug();
return(string.Empty); // Not reached
}
public override object ExecIdCall(IdFunctionObject f, Context cx, IScriptable scope, IScriptable thisObj, object [] args)
{
if (!f.HasTag(NUMBER_TAG))
{
return(base.ExecIdCall(f, cx, scope, thisObj, args));
}
int id = f.MethodId;
if (id == Id_constructor)
{
double val = (args.Length >= 1) ? ScriptConvert.ToNumber(args [0]) : 0.0;
if (thisObj == null)
{
// new Number(val) creates a new Number object.
return(new BuiltinNumber(val));
}
// Number(val) converts val to a number value.
return(val);
}
// The rest of Number.prototype methods require thisObj to be Number
BuiltinNumber nativeNumber = (thisObj as BuiltinNumber);
if (nativeNumber == null)
{
throw IncompatibleCallError(f);
}
double value = nativeNumber.doubleValue;
int toBase = 0;
switch (id)
{
case Id_toString:
toBase = (args.Length == 0) ? 10 : ScriptConvert.ToInt32(args [0]);
return(ScriptConvert.ToString(value, toBase));
case Id_toLocaleString: {
// toLocaleString is just an alias for toString for now
toBase = (args.Length == 0) ? 10 : ScriptConvert.ToInt32(args [0]);
return(ScriptConvert.ToString(value, toBase));
}
case Id_toSource:
return("(new Number(" + ScriptConvert.ToString(value) + "))");
case Id_valueOf:
return(value);
case Id_toFixed:
return(num_to(value, args, DTOSTR_FIXED, DTOSTR_FIXED, -20, 0));
case Id_toExponential:
return(num_to(value, args, DTOSTR_STANDARD_EXPONENTIAL, DTOSTR_EXPONENTIAL, 0, 1));
case Id_toPrecision: {
if (args.Length < 0 || args [0] == Undefined.Value)
{
return(ScriptConvert.ToString(value));
}
int precision = ScriptConvert.ToInt32(args [0]);
if (precision < 0 || precision > MAX_PRECISION)
{
throw ScriptRuntime.ConstructError("RangeError",
ScriptRuntime.GetMessage("msg.bad.precision", ScriptConvert.ToString(args [0])));
}
return(value.ToString(GetFormatString(precision)));
}
default:
throw new ArgumentException(Convert.ToString(id));
}
}
