internal BuiltinFunction(string name, object obj, MethodInfo method, ScriptFunction parent) : base(parent, name)
{
base.noExpando = false;
ParameterInfo[] parameters = method.GetParameters();
base.ilength = parameters.Length;
object[] objArray = Microsoft.JScript.CustomAttribute.GetCustomAttributes(method, typeof(JSFunctionAttribute), false);
JSFunctionAttribute attribute = (objArray.Length > 0) ? ((JSFunctionAttribute)objArray[0]) : new JSFunctionAttribute(JSFunctionAttributeEnum.None);
JSFunctionAttributeEnum attributeValue = attribute.attributeValue;
if ((attributeValue & JSFunctionAttributeEnum.HasThisObject) != JSFunctionAttributeEnum.None)
{
base.ilength--;
}
if ((attributeValue & JSFunctionAttributeEnum.HasEngine) != JSFunctionAttributeEnum.None)
{
base.ilength--;
}
if ((attributeValue & JSFunctionAttributeEnum.HasVarArgs) != JSFunctionAttributeEnum.None)
{
base.ilength--;
}
this.biFunc = attribute.builtinFunction;
if (this.biFunc == JSBuiltin.None)
{
this.method = new JSNativeMethod(method, obj, base.engine);
}
else
{
this.method = null;
}
}
// Constructor.
public BuiltinFunction(ScriptObject prototype, String name,
MethodInfo method)
: base(prototype, name)
{
this.method = method;
Object[] attrs = method.GetCustomAttributes
(typeof(JSFunctionAttribute), false);
if(attrs == null || attrs.Length == 0)
{
this.flags = (JSFunctionAttributeEnum)0;
}
else
{
this.flags = ((JSFunctionAttribute)(attrs[0]))
.GetAttributeValue();
}
requiredParameters = method.GetParameters().Length;
lengthValue = requiredParameters;
if((flags & JSFunctionAttributeEnum.HasThisObject) != 0)
{
--lengthValue;
}
if((flags & JSFunctionAttributeEnum.HasEngine) != 0)
{
--lengthValue;
}
if((flags & JSFunctionAttributeEnum.HasVarArgs) != 0)
{
--lengthValue;
}
}
internal BuiltinFunction(String name, Object obj, MethodInfo method, ScriptFunction parent)
: base(parent, name)
{
this.noExpando = false;
ParameterInfo[] pars = method.GetParameters();
int n = this.ilength = pars.Length;
Object[] attrs = CustomAttribute.GetCustomAttributes(method, typeof(JSFunctionAttribute), false);
JSFunctionAttribute attr = attrs.Length > 0 ? (JSFunctionAttribute)attrs[0] : new JSFunctionAttribute((JSFunctionAttributeEnum)0);
JSFunctionAttributeEnum attrVal = attr.attributeValue;
if ((attrVal & JSFunctionAttributeEnum.HasThisObject) != 0)
{
this.ilength--;
}
if ((attrVal & JSFunctionAttributeEnum.HasEngine) != 0)
{
this.ilength--;
}
if ((attrVal & JSFunctionAttributeEnum.HasVarArgs) != 0)
{
this.ilength--;
}
this.biFunc = attr.builtinFunction;
if (this.biFunc == 0)
{
this.method = new JSNativeMethod(method, obj, this.engine);
}
else
{
this.method = null;
}
}
// Constructor.
public BuiltinFunction(ScriptObject prototype, String name,
MethodInfo method)
: base(prototype, name)
{
this.method = method;
Object[] attrs = method.GetCustomAttributes
(typeof(JSFunctionAttribute), false);
if (attrs == null || attrs.Length == 0)
{
this.flags = (JSFunctionAttributeEnum)0;
}
else
{
this.flags = ((JSFunctionAttribute)(attrs[0]))
.GetAttributeValue();
}
requiredParameters = method.GetParameters().Length;
lengthValue = requiredParameters;
if ((flags & JSFunctionAttributeEnum.HasThisObject) != 0)
{
--lengthValue;
}
if ((flags & JSFunctionAttributeEnum.HasEngine) != 0)
{
--lengthValue;
}
if ((flags & JSFunctionAttributeEnum.HasVarArgs) != 0)
{
--lengthValue;
}
}
internal void set_function_type()
{
if (parent == null || parent.GetType() == typeof(ScriptBlock))
{
func_type = JSFunctionAttributeEnum.ClassicFunction;
}
else if (parent is FunctionDeclaration)
{
func_type = JSFunctionAttributeEnum.NestedFunction;
}
}
internal static bool Needs(JSFunctionAttributeEnum targetAttr, MethodInfo method)
{
JSFunctionAttribute [] custom_attrs = (JSFunctionAttribute [])
method.GetCustomAttributes(typeof(JSFunctionAttribute), true);
foreach (JSFunctionAttribute attr in custom_attrs)
{
if ((attr.GetAttributeValue() & targetAttr) != 0)
{
return(true);
}
}
return(false);
}
internal static void GetMethodFlags(MethodInfo method, out bool has_engine, out bool has_var_args, out bool has_this)
{
//
// Very hackish. It would be better if the
// anonymous methods could be decorated with the right attributes.
//
if (method.DeclaringType.IsSubclassOf(typeof(GlobalScope)))
{
has_engine = true;
has_var_args = false;
has_this = true;
return;
}
JSFunctionAttribute [] custom_attrs = (JSFunctionAttribute [])
method.GetCustomAttributes(typeof(JSFunctionAttribute), true);
//
// We need to iterate through the JSFunctionAttributes to find out whether the function wants
// to get passed the vsaEngine or not so we can pass the right arguments to it.
//
has_engine = false;
has_var_args = false;
has_this = false;
foreach (JSFunctionAttribute attr in custom_attrs)
{
JSFunctionAttributeEnum flags = attr.GetAttributeValue();
if ((flags & JSFunctionAttributeEnum.HasEngine) != 0)
{
has_engine = true;
}
if ((flags & JSFunctionAttributeEnum.HasVarArgs) != 0)
{
has_var_args = true;
}
if ((flags & JSFunctionAttributeEnum.HasThisObject) != 0)
{
has_this = true;
}
}
}
internal JSNativeMethod(MethodInfo method, object obj, VsaEngine engine) : base(obj)
{
this.method = method;
this.formalParams = method.GetParameters();
object[] objArray = Microsoft.JScript.CustomAttribute.GetCustomAttributes(method, typeof(JSFunctionAttribute), false);
JSFunctionAttribute attribute = (objArray.Length > 0) ? ((JSFunctionAttribute)objArray[0]) : new JSFunctionAttribute(JSFunctionAttributeEnum.None);
JSFunctionAttributeEnum attributeValue = attribute.attributeValue;
if ((attributeValue & JSFunctionAttributeEnum.HasThisObject) != JSFunctionAttributeEnum.None)
{
this.hasThis = true;
}
if ((attributeValue & JSFunctionAttributeEnum.HasEngine) != JSFunctionAttributeEnum.None)
{
this.hasEngine = true;
}
if ((attributeValue & JSFunctionAttributeEnum.HasVarArgs) != JSFunctionAttributeEnum.None)
{
this.hasVarargs = true;
}
this.engine = engine;
}
internal JSNativeMethod(MethodInfo method, Object obj, VsaEngine engine)
: base(obj)
{
this.method = method;
this.formalParams = method.GetParameters();
Object[] attrs = CustomAttribute.GetCustomAttributes(method, typeof(JSFunctionAttribute), false);
JSFunctionAttribute attr = attrs.Length > 0 ? (JSFunctionAttribute)attrs[0] : new JSFunctionAttribute((JSFunctionAttributeEnum)0);
JSFunctionAttributeEnum attrVal = attr.attributeValue;
if ((attrVal & JSFunctionAttributeEnum.HasThisObject) != 0)
{
this.hasThis = true;
}
if ((attrVal & JSFunctionAttributeEnum.HasEngine) != 0)
{
this.hasEngine = true;
}
if ((attrVal & JSFunctionAttributeEnum.HasVarArgs) != 0)
{
this.hasVarargs = true;
}
this.engine = engine;
}
public JSFunctionAttribute(JSFunctionAttributeEnum value, JSBuiltin builtinFunction)
{
this.attributeValue = value;
this.builtinFunction = builtinFunction;
}
public JSFunctionAttribute(JSFunctionAttributeEnum value)
{
this.attributeValue = value;
this.builtinFunction = JSBuiltin.None;
}
public JSFunctionAttribute(JSFunctionAttributeEnum value, JSBuiltin builtinFunction)
{
}
// Constructors
public JSFunctionAttribute(JSFunctionAttributeEnum value)
{
}
public JSFunctionAttribute(JSFunctionAttributeEnum value, JSBuiltin builtinFunction)
{
this.attributeValue = value;
this.builtinFunction = builtinFunction;
}
public JSFunctionAttribute(JSFunctionAttributeEnum value)
{
this.attributeValue = value;
this.builtinFunction = (JSBuiltin)0;
}
public JSFunctionAttribute (JSFunctionAttributeEnum value)
{
this.value = value;
this.built_in_function = (JSBuiltin) 0;
}
public JSFunctionAttribute(JSFunctionAttributeEnum value, JSBuiltin builtinFunction) {}
internal void set_function_type ()
{
if (parent == null || parent.GetType () == typeof (ScriptBlock))
func_type = JSFunctionAttributeEnum.ClassicFunction;
else if (parent is FunctionDeclaration)
func_type = JSFunctionAttributeEnum.NestedFunction;
}
// Constructors
public JSFunctionAttribute(JSFunctionAttributeEnum value) {}
public JSFunctionAttribute(JSFunctionAttributeEnum value)
{
this.value = value;
this.built_in_function = (JSBuiltin)0;
}
internal static bool Needs (JSFunctionAttributeEnum targetAttr, MethodInfo method)
{
JSFunctionAttribute [] custom_attrs = (JSFunctionAttribute [])
method.GetCustomAttributes (typeof (JSFunctionAttribute), true);
foreach (JSFunctionAttribute attr in custom_attrs)
if ((attr.GetAttributeValue () & targetAttr) != 0)
return true;
return false;
}
