void ReportException(TryCatch &try_catch, bool show_line, std::string& err_msg) {
HandleScope scope;
if (show_line) DisplayExceptionLine(try_catch, err_msg);
String::Utf8Value trace(try_catch.StackTrace());
// range errors have a trace member set to undefined
if (trace.length() > 0 && !try_catch.StackTrace()->IsUndefined()) {
fprintf(stderr, "%s\n", *trace);
err_msg += *trace;
err_msg += "\n";
} else {
// this really only happens for RangeErrors, since they're the only
// kind that won't have all this info in the trace, or when non-Error
// objects are thrown manually.
Local<Value> er = try_catch.Exception();
bool isErrorObject = er->IsObject() &&
!(er->ToObject()->Get(String::New("message"))->IsUndefined()) &&
!(er->ToObject()->Get(String::New("name"))->IsUndefined());
if (isErrorObject) {
String::Utf8Value name(er->ToObject()->Get(String::New("name")));
fprintf(stderr, "%s: ", *name);
err_msg += *name;
err_msg += ": ";
}
String::Utf8Value msg(!isErrorObject ? er
: er->ToObject()->Get(String::New("message")));
fprintf(stderr, "%s\n", *msg);
err_msg += *msg;
err_msg += "\n";
}
fflush(stderr);
}
Handle<Value> TiTitaniumObject::_globalInclude(void*, TiObject*, const Arguments& args)
{
if (args.Length() < 2)
{
return ThrowException(String::New(Ti::Msg::Missing_argument));
}
string id = *String::Utf8Value(args[0]->ToString());
string parentFolder = *String::Utf8Value(args[1]->ToString());
// CommonJS path rules
if (id.find("/") == 0) {
id.replace(id.find("/"), std::string("/").length(), rootFolder);
}
else if (id.find("./") == 0) {
id.replace(id.find("./"), std::string("./").length(), parentFolder);
}
else if (id.find("../") == 0) {
// count ../../../ in id and strip off back of parentFolder
int count = 0;
size_t idx = 0;
size_t pos = 0;
while (true) {
idx = id.find("../", pos);
if (idx == std::string::npos) {
break;
} else {
pos = idx + 3;
count++;
}
}
// strip leading ../../ off module id
id = id.substr(pos);
// strip paths off the parent folder
idx = 0;
pos = parentFolder.size();
for (int i = 0; i < count; i++) {
idx = parentFolder.find_last_of("/", pos);
pos = idx - 1;
}
if (idx == std::string::npos) {
return ThrowException(String::New("Unable to find module"));
}
parentFolder = parentFolder.substr(0, idx + 1);
id = parentFolder + id;
}
else {
string tempId = rootFolder + id;
ifstream ifs((tempId).c_str());
if (!ifs) {
id = parentFolder + id;
}
else {
id = rootFolder + id;
}
}
string filename = id;
string javascript;
{
ifstream ifs((filename).c_str());
if (!ifs)
{
Local<Value> taggedMessage = String::New((string(Ti::Msg::No_such_native_module) + " " + id).c_str());
return ThrowException(taggedMessage);
}
getline(ifs, javascript, string::traits_type::to_char_type(string::traits_type::eof()));
ifs.close();
}
// wrap the module
{
size_t idx = filename.find_last_of("/");
parentFolder = filename.substr(0, idx + 1);
static const string preWrap = "Ti.include = function (id) { Ti.globalInclude(id, '" + parentFolder + "')};\n";
javascript = preWrap + javascript;
}
TryCatch tryCatch;
Handle<Script> compiledScript = Script::Compile(String::New(javascript.c_str()), String::New(filename.c_str()));
if (compiledScript.IsEmpty())
{
DisplayExceptionLine(tryCatch);
return tryCatch.ReThrow();
}
Persistent<Value> result = Persistent<Value>::New(compiledScript->Run());
if (result.IsEmpty())
{
return tryCatch.ReThrow();
}
return Undefined();
}
Handle<Value> TiRootObject::_globalRequire(void*, TiObject*, const Arguments& args)
{
if (args.Length() < 2)
{
return ThrowException(String::New(Ti::Msg::Missing_argument));
}
string id = *String::Utf8Value(args[0]->ToString());
string parentFolder = *String::Utf8Value(args[1]->ToString());
// CommonJS path rules
if (id.find("/") == 0) {
id.replace(id.find("/"), std::string("/").length(), rootFolder);
}
else if (id.find("./") == 0) {
id.replace(id.find("./"), std::string("./").length(), parentFolder);
}
else if (id.find("../") == 0) {
// count ../../../ in id and strip off back of parentFolder
int count = 0;
size_t idx = 0;
size_t pos = 0;
while (true) {
idx = id.find("../", pos);
if (idx == std::string::npos) {
break;
} else {
pos = idx + 3;
count++;
}
}
// strip leading ../../ off module id
id = id.substr(pos);
// strip paths off the parent folder
idx = 0;
pos = parentFolder.size();
for (int i = 0; i < count; i++) {
idx = parentFolder.find_last_of("/", pos);
pos = idx - 1;
}
if (idx == std::string::npos) {
return ThrowException(String::New("Unable to find module"));
}
parentFolder = parentFolder.substr(0, idx + 1);
id = parentFolder + id;
}
else {
string tempId = rootFolder + id;
ifstream ifs((tempId + ".js").c_str());
if (!ifs) {
id = parentFolder + id;
}
else {
id = rootFolder + id;
}
}
string filename = id + ".js";
// check if cached
static map<string, Persistent<Value> > cache;
map<string, Persistent<Value> >::const_iterator cachedValue = cache.find(id);
if (cachedValue != cache.end())
{
return cachedValue->second;
}
string javascript;
{
ifstream ifs((filename).c_str());
if (!ifs)
{
Local<Value> taggedMessage = String::New((string(Ti::Msg::No_such_native_module) + " " + id).c_str());
return ThrowException(taggedMessage);
}
getline(ifs, javascript, string::traits_type::to_char_type(string::traits_type::eof()));
ifs.close();
}
// wrap the module
{
size_t idx = filename.find_last_of("/");
parentFolder = filename.substr(0, idx + 1);
static const string requireWithParent = "var require = function (id) { return globalRequire(id, '" + parentFolder + "')};\n";
static const string preWrap = "(function () {" + requireWithParent + "\nvar module = { exports: {} }; var exports = module.exports;\n";
static const string postWrap = "\nreturn module.exports; })();";
javascript = preWrap + javascript + postWrap;
}
TryCatch tryCatch;
Handle<Script> compiledScript = Script::Compile(String::New(javascript.c_str()), String::New(filename.c_str()));
if (compiledScript.IsEmpty())
{
DisplayExceptionLine(tryCatch);
return tryCatch.ReThrow();
}
Persistent<Value> result = Persistent<Value>::New(compiledScript->Run());
if (result.IsEmpty())
{
return tryCatch.ReThrow();
}
// cache result
cache.insert(pair<string, Persistent<Value> >(id, result));
return result;
}
