src/NativeTable.cpp
changeset 195 c1ba166f3fc4
child 196 9904633b1dfc
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/NativeTable.cpp	Sat Nov 17 18:41:01 2012 -0800
     1.3 @@ -0,0 +1,96 @@
     1.4 +/* vim: set ts=4 sw=4 tw=99 et:
     1.5 + *
     1.6 + * Copyright (C) 2012 David Anderson
     1.7 + *
     1.8 + * This file is part of SourcePawn.
     1.9 + *
    1.10 + * SourcePawn is free software: you can redistribute it and/or modify it under
    1.11 + * the terms of the GNU General Public License as published by the Free
    1.12 + * Software Foundation, either version 3 of the License, or (at your option)
    1.13 + * any later version.
    1.14 + * 
    1.15 + * SourcePawn is distributed in the hope that it will be useful, but WITHOUT ANY
    1.16 + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    1.17 + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
    1.18 + *
    1.19 + * You should have received a copy of the GNU General Public License along with
    1.20 + * SourcePawn. If not, see http://www.gnu.org/licenses/.
    1.21 + */
    1.22 +#include "Zone.h"
    1.23 +#include "NativeTable.h"
    1.24 +#include "StringPool.h"
    1.25 +
    1.26 +using namespace ke;
    1.27 +
    1.28 +NativeTable::NativeTable(Zone *zone)
    1.29 +  : zone_(zone),
    1.30 +    nativeMap_(ZoneAllocatorPolicy())
    1.31 +{
    1.32 +}
    1.33 +
    1.34 +NativeTable::~NativeTable()
    1.35 +{
    1.36 +    for (size_t i = 0; i < natives_.length(); i++)
    1.37 +        delete natives_[i];
    1.38 +}
    1.39 +
    1.40 +bool
    1.41 +NativeTable::initialize()
    1.42 +{
    1.43 +    return nativeMap_.init(16);
    1.44 +}
    1.45 +
    1.46 +bool
    1.47 +NativeTable::add(Handle<String> name, size_t *indexp)
    1.48 +{
    1.49 +    // :TODO: assert no GC
    1.50 +    CharsAndLength key(name->chars(), name->length());
    1.51 +    NativeMap::Insert p = nativeMap_.findForAdd(key);
    1.52 +    if (p.found()) {
    1.53 +        *indexp = (*p)->index;
    1.54 +        return true;
    1.55 +    }
    1.56 +
    1.57 +    NativeInfo *info = new NativeInfo(name, NULL, natives_.length());
    1.58 +    if (!info || !natives_.append(info))
    1.59 +        return false;
    1.60 +
    1.61 +    if (!nativeMap_.add(p, info))
    1.62 +        return false;
    1.63 +
    1.64 +    *indexp = info->index;
    1.65 +
    1.66 +    return true;
    1.67 +}
    1.68 +
    1.69 +bool
    1.70 +NativeTable::bind(const char *name, void *address)
    1.71 +{
    1.72 +    CharsAndLength key(name, strlen(name));
    1.73 +    NativeMap::Insert p = nativeMap_.findForAdd(key);
    1.74 +    if (p.found()) {
    1.75 +        (*p)->address = address;
    1.76 +        return true;
    1.77 +    }
    1.78 +
    1.79 +    Local<String> str(zone_, zone_->symbols()->add(key.str(), key.length()));
    1.80 +    if (!str)
    1.81 +        return false;
    1.82 +
    1.83 +    // :TODO: assert no GC
    1.84 +    NativeInfo *info = new NativeInfo(str, address, natives_.length());
    1.85 +    if (!info || !natives_.append(info))
    1.86 +        return false;
    1.87 +
    1.88 +    if (!nativeMap_.add(p, info))
    1.89 +        return false;
    1.90 +
    1.91 +    return true;
    1.92 +}
    1.93 +
    1.94 +void
    1.95 +NativeTable::accept(VirtualObjectVisitor *visitor)
    1.96 +{
    1.97 +    for (size_t i = 0; i < natives_.length(); i++)
    1.98 +        visitor->visit(natives_[i]->name.address());
    1.99 +}