private boolean requireFile(String feature, String path, Node currentNode) throws IOException {
// We expect '/' in various classpath URLs, so normalize Windows file paths to use '/'
path = path.replace('\\', '/');
final RubyBasicObject loadedFeatures = context.getCoreLibrary().getLoadedFeatures();
if (path.startsWith("uri:classloader:/")) {
// TODO CS 13-Feb-15 this uri:classloader:/ and core:/ thing is a hack - simplify it
for (Object loaded : Arrays.asList(ArrayNodes.slowToArray(loadedFeatures))) {
if (loaded.toString().equals(path)) {
return true;
}
}
String coreFileName = path.substring("uri:classloader:/".length());
coreFileName = FileSystems.getDefault().getPath(coreFileName).normalize().toString();
if (context
.getRuntime()
.getLoadService()
.getClassPathResource(context.getRuntime().getJRubyClassLoader(), coreFileName)
== null) {
return false;
}
if (SHOW_RESOLUTION) {
System.err.printf("resolved %s -> %s%n", feature, coreFileName);
}
context.getCoreLibrary().loadRubyCore(coreFileName, "uri:classloader:/");
ArrayNodes.slowPush(
loadedFeatures,
StringNodes.createString(context.getCoreLibrary().getStringClass(), path));
return true;
} else if (path.startsWith("core:/")) {
for (Object loaded : Arrays.asList(ArrayNodes.slowToArray(loadedFeatures))) {
if (loaded.toString().equals(path)) {
return true;
}
}
final String coreFileName = path.substring("core:/".length());
if (context
.getRuntime()
.getLoadService()
.getClassPathResource(context.getRuntime().getJRubyClassLoader(), coreFileName)
== null) {
return false;
}
if (SHOW_RESOLUTION) {
System.err.printf("resolved %s -> %s%n", feature, coreFileName);
}
context.getCoreLibrary().loadRubyCore(coreFileName, "core:/");
ArrayNodes.slowPush(
loadedFeatures,
StringNodes.createString(context.getCoreLibrary().getStringClass(), path));
return true;
} else {
final File file = new File(path);
assert file.isAbsolute();
if (!file.isAbsolute() || !file.isFile()) {
return false;
}
final String expandedPath = expandPath(context, path);
for (Object loaded : Arrays.asList(ArrayNodes.slowToArray(loadedFeatures))) {
if (loaded.toString().equals(expandedPath)) {
return true;
}
}
if (SHOW_RESOLUTION) {
System.err.printf("resolved %s -> %s%n", feature, expandedPath);
}
// TODO (nirvdrum 15-Jan-15): If we fail to load, we should remove the path from the loaded
// features because subsequent requires of the same statement may succeed.
final RubyBasicObject pathString =
StringNodes.createString(context.getCoreLibrary().getStringClass(), expandedPath);
ArrayNodes.slowPush(loadedFeatures, pathString);
try {
context.loadFile(path, currentNode);
} catch (RaiseException e) {
final ArrayMirror mirror =
ArrayMirror.reflect((Object[]) ArrayNodes.getStore(loadedFeatures));
final int length = ArrayNodes.getSize(loadedFeatures);
for (int i = length - 1; i >= 0; i--) {
if (mirror.get(i) == pathString) {
for (int j = length - 1; j > i; j--) {
mirror.set(i - 1, mirror.get(i));
}
ArrayNodes.setSize(loadedFeatures, length - 1);
break;
}
}
throw e;
}
}
return true;
}
