/// <summary>
/// Evaluates JavaScript code represented as a <see cref="String"/> in this V8 context.
/// </summary>
/// <param name="code">The JavaScript code.</param>
/// <param name="scriptUrl">The URL where the script in question can be found, if any.</param>
/// <param name="line">The base line number to use for error reporting.</param>
/// <returns>The completion value of evaluating the given code.</returns>
/// <exception cref="CefNetJSExcepton">
/// Thrown when an exception is raised in the JavaScript engine.
/// </exception>
public CefV8Value Eval(string code, string scriptUrl, int line = 1)
{
if (line <= 0)
{
throw new ArgumentOutOfRangeException(nameof(line));
}
if (code is null)
throw new ArgumentNullException(nameof(code));
fixed(char *s0 = code)
fixed(char *s1 = scriptUrl)
{
var cstr0 = new cef_string_t {
Str = s0, Length = code.Length
};
var cstr1 = new cef_string_t {
Str = s1, Length = scriptUrl != null ? scriptUrl.Length : 0
};
cef_v8value_t * rv = null;
cef_v8value_t ** pRv = &rv;
cef_v8exception_t * jsex = null;
cef_v8exception_t **pJsex = &jsex;
if (NativeInstance->Eval(&cstr0, &cstr1, line, pRv, pJsex) != 0)
{
return(CefV8Value.Wrap(CefV8Value.Create, rv));
}
GC.KeepAlive(this);
throw new CefNetJSExcepton(CefV8Exception.Wrap(CefV8Exception.Create, jsex));
}
}
/// <summary>
/// Execute a string of JavaScript code in this V8 context. The |script_url|
/// parameter is the URL where the script in question can be found, if any. The
/// |start_line| parameter is the base line number to use for error reporting.
/// On success |retval| will be set to the return value, if any, and the
/// function will return true (1). On failure |exception| will be set to the
/// exception, if any, and the function will return false (0).
/// </summary>
public unsafe virtual bool Eval(string code, string scriptUrl, int startLine, ref CefV8Value retval, ref CefV8Exception exception)
{
fixed(char *s0 = code)
fixed(char *s1 = scriptUrl)
{
var cstr0 = new cef_string_t {
Str = s0, Length = code != null ? code.Length : 0
};
var cstr1 = new cef_string_t {
Str = s1, Length = scriptUrl != null ? scriptUrl.Length : 0
};
cef_v8value_t * p3 = (retval != null) ? retval.GetNativeInstance() : null;
cef_v8value_t ** pp3 = &p3;
cef_v8exception_t * p4 = (exception != null) ? exception.GetNativeInstance() : null;
cef_v8exception_t **pp4 = &p4;
var rv = NativeInstance->Eval(&cstr0, &cstr1, startLine, pp3, pp4) != 0;
retval = CefV8Value.Wrap(CefV8Value.Create, p3);
exception = CefV8Exception.Wrap(CefV8Exception.Create, p4);
GC.KeepAlive(this);
return(rv);
}
}
public static int eval(cef_v8context_t *self, cef_string_t *code, cef_string_t *script_url, int start_line, cef_v8value_t **retval, cef_v8exception_t **exception)
{
eval_delegate d;
var p = self->_eval;
if (p == _pc)
{
d = _dc;
}
else
{
d = (eval_delegate)Marshal.GetDelegateForFunctionPointer(p, typeof(eval_delegate));
if (_pc == IntPtr.Zero)
{
_dc = d; _pc = p;
}
}
return(d(self, code, script_url, start_line, retval, exception));
}
public unsafe extern int Eval([Immutable] cef_string_t *code, [Immutable] cef_string_t *script_url, int start_line, cef_v8value_t **retval, cef_v8exception_t **exception);
/// <summary>
/// Evaluates the specified JavaScript code using this context's global object.
/// On success |retval| will be set to the return value, if any, and the
/// function will return true. On failure |exception| will be set to the
/// exception, if any, and the function will return false.
/// </summary>
public int Eval(cef_string_t *code, cef_v8value_t **retval, cef_v8exception_t **exception)
{
throw new NotImplementedException(); // TODO: CefV8Context.Eval
}
public unsafe int Eval([Immutable] cef_string_t *code, [Immutable] cef_string_t *script_url, int start_line, cef_v8value_t **retval, cef_v8exception_t **exception)
{
fixed(cef_v8context_t *self = &this)
{
return(((delegate * unmanaged[Stdcall] < cef_v8context_t *, cef_string_t *, cef_string_t *, int, cef_v8value_t **, cef_v8exception_t **, int >)eval)(self, code, script_url, start_line, retval, exception));
}
}