| 55 | } |
| 56 | |
| 57 | void ConfigWriter::EmitScope(std::ostream& fp, int indentLevel, const Dictionary::Ptr& val, |
| 58 | const Array::Ptr& imports, bool splitDot) |
| 59 | { |
| 60 | fp << "{"; |
| 61 | |
| 62 | if (imports && imports->GetLength() > 0) { |
| 63 | ObjectLock xlock(imports); |
| 64 | for (const Value& import : imports) { |
| 65 | fp << "\n"; |
| 66 | EmitIndent(fp, indentLevel); |
| 67 | fp << "import "; |
| 68 | EmitString(fp, import.Get<String>()); |
| 69 | } |
| 70 | |
| 71 | fp << "\n"; |
| 72 | } |
| 73 | |
| 74 | if (val) { |
| 75 | ObjectLock olock(val); |
| 76 | for (const Dictionary::Pair& kv : val) { |
| 77 | fp << "\n"; |
| 78 | EmitIndent(fp, indentLevel); |
| 79 | |
| 80 | if (splitDot) { |
| 81 | std::vector<String> tokens = kv.first.Split("."); |
| 82 | |
| 83 | // This is reachable from CreateObjectHandler. This check prevents API clients from creating deeply |
| 84 | // nested data structures that could overflow the stack later on. |
| 85 | if (tokens.size() > ConfigObject::VarDepthLimit) { |
| 86 | BOOST_THROW_EXCEPTION(std::invalid_argument("Attribute '" + kv.first + |
| 87 | "' exceeds maximum nesting level of " + std::to_string(ConfigObject::VarDepthLimit) + ".")); |
| 88 | } |
| 89 | |
| 90 | EmitIdentifier(fp, tokens[0], true); |
| 91 | |
| 92 | for (std::vector<String>::size_type i = 1; i < tokens.size(); i++) { |
| 93 | fp << "["; |
| 94 | EmitString(fp, tokens[i]); |
| 95 | fp << "]"; |
| 96 | } |
| 97 | } else |
| 98 | EmitIdentifier(fp, kv.first, true); |
| 99 | |
| 100 | fp << " = "; |
| 101 | EmitValue(fp, indentLevel + 1, kv.second); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | fp << "\n"; |
| 106 | EmitIndent(fp, indentLevel - 1); |
| 107 | fp << "}"; |
| 108 | } |
| 109 | |
| 110 | void ConfigWriter::EmitValue(std::ostream& fp, int indentLevel, const Value& val) |
| 111 | { |