// 回填 ref/out 参数
// 扩展方法参数索引需要偏移
protected void _WriteBackParametersByRef(bool isExtension, List <ParameterInfo> parametersByRef)
{
for (var i = 0; i < parametersByRef.Count; i++)
{
var parameter = parametersByRef[i];
var position = isExtension ? parameter.Position - 1 : parameter.Position;
var argname = $"arg{position}";
var pusher = cg.AppendValuePusher(parameter.ParameterType, argname);
cg.cs.AppendLine("var out{0} = {1};", position, pusher);
cg.cs.AppendLine("if (JSApi.JS_IsException(out{0}))", position);
cg.cs.AppendLine("{");
cg.cs.AddTabLevel();
// for (var j = 0; j < i; j++)
// {
// cg.cs.AppendLine("JSApi.JS_FreeValue(ctx, out{0});", j);
// }
cg.cs.AppendLine("return out{0};", position);
cg.cs.DecTabLevel();
cg.cs.AppendLine("}");
cg.cs.AppendLine("JSApi.JS_SetPropertyStr(ctx, argv[{0}], \"target\", out{1});", position, position);
}
}
// 回填 ref/out 参数
// 扩展方法参数索引需要偏移
protected string _WriteBackParametersByRef(bool isExtension, List <ParameterInfo> parametersByRef, string retJsVar)
{
var retVar = "mult_ret";
cg.cs.AppendLine("var context = ScriptEngine.GetContext(ctx);");
cg.cs.AppendLine("var {0} = JSApi.JS_NewObject(ctx);", retVar);
if (!string.IsNullOrEmpty(retJsVar))
{
var retJsVarName = BindingManager.GetTSVariable("return");
cg.cs.AppendLine("JSApi.JS_SetProperty(ctx, {0}, context.GetAtom(\"{1}\"), {2});", retVar, retJsVarName, retJsVar);
}
for (var i = 0; i < parametersByRef.Count; i++)
{
var parameter = parametersByRef[i];
var pname = BindingManager.GetTSVariable(parameter);
var position = isExtension ? parameter.Position - 1 : parameter.Position;
var argname = $"arg{position}";
var pusher = cg.AppendValuePusher(parameter.ParameterType, argname);
cg.cs.AppendLine("var out{0} = {1};", i, pusher);
cg.cs.AppendLine("if (JSApi.JS_IsException(out{0}))", i);
using (cg.cs.Block())
{
for (var j = 0; j < i; j++)
{
cg.cs.AppendLine("JSApi.JS_FreeValue(ctx, out{0});", j);
}
cg.cs.AppendLine("JSApi.JS_FreeValue(ctx, {0});", retVar);
cg.cs.AppendLine("return out{0};", i);
}
cg.cs.AppendLine("JSApi.JS_SetProperty(ctx, {0}, context.GetAtom(\"{1}\"), out{2});", retVar, pname, i);
}
return(retVar);
}