/// <summary>
/// Creates a native function and assigns it as a property to this JS object.
/// </summary>
/// <param name="name">The name of the property to be defined or modified.</param>
/// <param name="func">The function associated with the property.</param>
/// <param name="argCount">The number of arguments the function expects to receive.</param>
/// <param name="magic">A magic value.</param>
/// <param name="data">An array containing data to be used by the method.</param>
/// <param name="flags">A bitwise combination of the <see cref="JSPropertyFlags"/>.</param>
/// <returns>true if the property has been defined or redefined; otherwise false.</returns>
public unsafe bool DefineFunction(string name, JSCFunctionDataDelegate func, int argCount, int magic, JSValue[] data, JSPropertyFlags flags)
{
fixed(byte *aName = Utils.StringToManagedUTF8(name))
{
return(DefinePropertyInternal(aName, Context.CreateFunctionRaw(func, argCount, magic, data), flags));
}
}
/// <summary>
/// Creates a new JavaScript function in this context.
/// </summary>
/// <param name="function">A delegate to the function that is to be exposed to JavaScript.</param>
/// <param name="argCount">The number of arguments the function expects to receive.</param>
/// <param name="magic">A magic value.</param>
/// <param name="data">An array containing data to be used by the method.</param>
/// <returns>A value containing the new function.</returns>
public JSValue CreateConstructorRaw(JSCFunctionDataDelegate function, int argCount, int magic, JSValue[] data)
{
JSValue ctor = CreateFunctionRaw(function, argCount, magic, data);
JS_SetConstructorBit(this.NativeInstance, ctor, true);
return(ctor);
}
/// <summary>
/// Creates a new JavaScript function in this context.
/// </summary>
/// <param name="function">A delegate to the function that is to be exposed to JavaScript.</param>
/// <param name="argCount">The number of arguments the function expects to receive.</param>
/// <param name="magic">A magic value.</param>
/// <param name="data">An array containing data to be used by the method.</param>
/// <returns>A value containing the new function.</returns>
public JSValue CreateFunctionRaw(JSCFunctionDataDelegate function, int argCount, int magic, JSValue[] data)
{
int dataLength = data is null ? 0 : data.Length;
var fn = new QuickJSSafeDelegate(function, dataLength);
JSValue fnValue = JS_NewCFunctionData(this.NativeInstance, fn.GetPointer(), argCount, magic, dataLength, data);
if (JS_IsException(fnValue))
{
_context.ThrowPendingException();
}
else
{
_functions.Add(fn);
}
return(fnValue);
}
/// <summary>
/// Creates a native constructor function and assigns it as a property tothe global object.
/// </summary>
/// <param name="name">The name of the property to be defined or modified.</param>
/// <param name="func">The function associated with the property.</param>
/// <param name="argCount">The number of arguments the function expects to receive.</param>
/// <param name="magic">A magic value.</param>
/// <param name="data">An array containing data to be used by the method.</param>
/// <param name="flags">A bitwise combination of the <see cref="JSPropertyFlags"/>.</param>
/// <returns>true if the property has been defined or redefined; otherwise false.</returns>
public unsafe bool DefineConstructor(string name, JSCFunctionDataDelegate func, int argCount, int magic, JSValue[] data, JSPropertyFlags flags)
{
fixed(byte *aName = Utils.StringToManagedUTF8(name))
{
int rv = -1;
JSValue globObj = JS_GetGlobalObject(this.NativeInstance);
try
{
JSValue ctor = CreateFunctionRaw(func, argCount, magic, data);
JS_SetConstructorBit(this.NativeInstance, ctor, true);
rv = JS_DefinePropertyValueStr(this.NativeInstance, globObj, aName, ctor, flags & JSPropertyFlags.CWE);
if (rv == -1)
{
this.NativeInstance.ThrowPendingException();
}
}
finally
{
JS_FreeValue(this.NativeInstance, globObj);
}
return(rv == 1);
}
}
public unsafe QuickJSSafeDelegate(JSCFunctionDataDelegate function, int dataLength)
{
_data_len = dataLength;
_callback = function;
_handler = sizeof(JSValue) == sizeof(ulong) ? (Delegate) new JSCFunctionData32(CFnData2Impl8) : new JSCFunctionData(CFnData2Impl16);
}
