internal DynamicLet(Cons args,Env env,Interpreter interpreter,Loc loc)
{
this.loc = loc;
this.interpreter = interpreter;
Cons bindlist = (Cons)args.first;
Int32 blen = Cons.Length(bindlist);
if((blen%2) != 0) //odd
{
throw new Exception("Odd number of args in dynamic-let binding list");
}
binds = new BindPair[blen/2];
for(int i = 0;i<binds.Length;i++)
{
binds[i].dvar = (DynamicVar)interpreter.analyze(bindlist.first, env,loc);
bindlist = bindlist.rest;
binds[i].expr = interpreter.analyze(bindlist.first, env,loc);
bindlist = bindlist.rest;
}
this.body = interpreter.analyze(new Cons(interpreter.BLOCK,args.rest), env,loc);
}
internal DynamicLet(Cons args,Env env,Interpreter interpreter,Loc loc)
{
this.loc = loc;
this.interpreter = interpreter;
Cons bindlist = (Cons)args.first;
Int32 blen = Cons.Length(bindlist);
if((blen%2) != 0) //odd
{
throw new Exception("Odd number of args in dynamic-let binding list");
}
binds = new BindPair[blen/2];
for(int i = 0;i<binds.Length;i++)
{
// MEH: Better error instead of InvalidCastException
//binds[i].dvar = (DynamicVar)interpreter.analyze(bindlist.first, env,loc);
if((binds[i].dvar = (interpreter.analyze(bindlist.first, env,loc) as DynamicVar)) == null)
throw new Exception("Dynamic vars must have prefix *");
bindlist = bindlist.rest;
binds[i].expr = interpreter.analyze(bindlist.first, env,loc);
bindlist = bindlist.rest;
}
this.body = interpreter.analyze(new Cons(interpreter.BLOCK,args.rest), env,loc);
}