//throw on error
static ResolutionResult checkImport(const PackageManager& pm, const ParseResultPtr& pr, const std::string& pkgName, const CustomTypeExprNode* tnode, const std::string& type)
{
PackagePtr pkg = pm.package(pkgName);
NodePtr node = pkg->getExport(type);
TypeKind kind;
if (node) {
switch (node->type()) {
case NodeType_InterfaceDecl:
kind = TypeKind_Interface;
break;
case NodeType_EnumDecl:
kind = TypeKind_Enum;
break;
case NodeType_StructDecl:
kind = TypeKind_Struct;
break;
default:
pr->addDiag(Diagnostic(DiagnosticType_Error, "'" + type + "' in package '" + pkgName + "' is not a type", tnode->loc()));
throw std::runtime_error("Not a type");
break;
}
return ResolutionResult(pkgName, type, kind);
}
pr->addDiag(Diagnostic(DiagnosticType_Error, "Can't find '" + type + "' in package '" + pkgName + "'", tnode->loc()));
throw std::runtime_error("Can't find import");
}
//public interface
ParseResultPtr parse(const FileReaderPtr& file) {
ParseResultPtr ret = newParseResult();
ret->filename = file->filename();
if (!file->isOpen()) {
ret->addDiag(Diagnostic(DiagnosticType_Error, "Can't open file '" + file->filename() + "'"));
return ret;
}
Parser p(file);
return p.result();
}
/** 1 / Check for missing or multiple package declaration
* 2 / Check that the directory path and package name match
* 3 / register the content of the file to the package
*/
bool PackageManager::addFileToPackage(const std::string& absfile, const FileReaderPtr& file, ParseResultPtr& pr) {
// 1
NodePtrVector result;
result = findNode(pr->ast, NodeType_Package);
if (result.size() == 0) {
pr->addDiag(Diagnostic(DiagnosticType_Error, "missing package declaration", Location(file->filename())));
return false;
}
if (result.size() > 1) {
for (unsigned i = 1; i < result.size(); ++i) {
pr->addDiag(Diagnostic(DiagnosticType_Error, "extra package declaration", result.at(i)->loc()));
}
pr->addDiag(Diagnostic(DiagnosticType_Info, "previous declared here", result.at(0)->loc()));
return false;
}
std::string pkgname = extractPackageName(result.at(0));
// 2
qi::Path pf(file->filename());
StringVector leafs = splitPkgName(pkgname);
qi::Path dirname;
qi::Path cur = pf.parent().absolute();
for (unsigned i = 0; i < leafs.size(); ++i)
{
dirname = qi::Path(cur.filename()) / dirname;
cur = cur.parent();
if (cur.isEmpty())
break;
}
qi::Path p = pf.parent().absolute();
for (int i = leafs.size() - 1; i >= 0; --i) {
std::string par = p.filename();
if (par != leafs.at(i)) {
pr->addDiag(Diagnostic(DiagnosticType_Error,
"package name '" + pkgname + "' do not match parent directory name '" + (std::string)dirname + "'",
result.at(0)->loc()));
return false;
}
p = p.parent();
}
std::string pkgpath = p.absolute().str();
addInclude(pkgpath);
addPackage(pkgname);
pr->package = pkgname;
package(pkgname)->setContent(absfile, pr);
return true;
}
//throw on error
ResolutionResult PackageManager::resolveImport(const ParseResultPtr& pr, const PackagePtr& pkg, const CustomTypeExprNode* tnode)
{
const std::string type = tnode->value;
qiLogVerbose() << "Resolving: " << type << " from package: " << pkg->_name;
const auto lastDot = type.find_last_of('.');
const std::string pkgName = (lastDot == std::string::npos) ? "" : type.substr(0, lastDot);
const auto valueBegins = pkgName.empty() ? 0 : (pkgName.size() + 1);
std::string value = type.substr(valueBegins);
//package name provided
if (!pkgName.empty() && pkgName != type)
return checkImport(*this, pr, pkgName, tnode, value);
value = type;
//no package name. find the package name
NodePtr exportnode = pkg->getExport(type);
if (exportnode)
return checkImport(*this, pr, pkg->_name, tnode, type);
ASTMap::const_iterator it;
for (it = pkg->_imports.begin(); it != pkg->_imports.end(); ++it) {
const NodePtrVector& v = it->second;
for (unsigned i = 0; i < v.size(); ++i) {
ImportNode* inode = static_cast<ImportNode*>(v.at(i).get());
switch (inode->importType) {
case ImportType_All: {
return checkImport(*this, pr, inode->name, tnode, type);
}
case ImportType_List: {
StringVector::iterator it = std::find(inode->imports.begin(), inode->imports.end(), type);
if (it != inode->imports.end()) {
return checkImport(*this, pr, inode->name, tnode, type);
}
break;
}
case ImportType_Package:
break;
}
}
}
pr->addDiag(Diagnostic(DiagnosticType_Error, "cant resolve id '" + type + "' from package '" + pkg->_name + "'", tnode->loc()));
throw std::runtime_error("cant resolve id");
}