diff options
author | Vincent Ambo <tazjin@google.com> | 2020-05-17T15·31+0100 |
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committer | Vincent Ambo <tazjin@google.com> | 2020-05-17T15·31+0100 |
commit | 0f2cf531f705d370321843e5ba9135b2ebdb5d19 (patch) | |
tree | 256feb13963a849ed96e89228fa05454c2a22363 /third_party/nix/src/libexpr/json-to-value.cc | |
parent | 65a1aae98ce5a237c9643e639e550c8b0c0be7f1 (diff) |
style(3p/nix): Reformat project in Google C++ style r/740
Reformatted with: fd . -e hh -e cc | xargs clang-format -i
Diffstat (limited to 'third_party/nix/src/libexpr/json-to-value.cc')
-rw-r--r-- | third_party/nix/src/libexpr/json-to-value.cc | 248 |
1 files changed, 126 insertions, 122 deletions
diff --git a/third_party/nix/src/libexpr/json-to-value.cc b/third_party/nix/src/libexpr/json-to-value.cc index 8bae986f97fc..8615d9797fa8 100644 --- a/third_party/nix/src/libexpr/json-to-value.cc +++ b/third_party/nix/src/libexpr/json-to-value.cc @@ -1,149 +1,153 @@ #include "json-to-value.hh" - #include <cstring> namespace nix { - -static void skipWhitespace(const char * & s) -{ - while (*s == ' ' || *s == '\t' || *s == '\n' || *s == '\r') s++; +static void skipWhitespace(const char*& s) { + while (*s == ' ' || *s == '\t' || *s == '\n' || *s == '\r') s++; } - -static string parseJSONString(const char * & s) -{ - string res; - if (*s++ != '"') throw JSONParseError("expected JSON string"); - while (*s != '"') { - if (!*s) throw JSONParseError("got end-of-string in JSON string"); - if (*s == '\\') { - s++; - if (*s == '"') res += '"'; - else if (*s == '\\') res += '\\'; - else if (*s == '/') res += '/'; - else if (*s == '/') res += '/'; - else if (*s == 'b') res += '\b'; - else if (*s == 'f') res += '\f'; - else if (*s == 'n') res += '\n'; - else if (*s == 'r') res += '\r'; - else if (*s == 't') res += '\t'; - else if (*s == 'u') throw JSONParseError("\\u characters in JSON strings are currently not supported"); - else throw JSONParseError("invalid escaped character in JSON string"); - s++; - } else - res += *s++; - } - s++; - return res; +static string parseJSONString(const char*& s) { + string res; + if (*s++ != '"') throw JSONParseError("expected JSON string"); + while (*s != '"') { + if (!*s) throw JSONParseError("got end-of-string in JSON string"); + if (*s == '\\') { + s++; + if (*s == '"') + res += '"'; + else if (*s == '\\') + res += '\\'; + else if (*s == '/') + res += '/'; + else if (*s == '/') + res += '/'; + else if (*s == 'b') + res += '\b'; + else if (*s == 'f') + res += '\f'; + else if (*s == 'n') + res += '\n'; + else if (*s == 'r') + res += '\r'; + else if (*s == 't') + res += '\t'; + else if (*s == 'u') + throw JSONParseError( + "\\u characters in JSON strings are currently not supported"); + else + throw JSONParseError("invalid escaped character in JSON string"); + s++; + } else + res += *s++; + } + s++; + return res; } +static void parseJSON(EvalState& state, const char*& s, Value& v) { + skipWhitespace(s); -static void parseJSON(EvalState & state, const char * & s, Value & v) -{ - skipWhitespace(s); + if (!*s) throw JSONParseError("expected JSON value"); - if (!*s) throw JSONParseError("expected JSON value"); - - if (*s == '[') { - s++; - ValueVector values; - values.reserve(128); - skipWhitespace(s); - while (1) { - if (values.empty() && *s == ']') break; - Value * v2 = state.allocValue(); - parseJSON(state, s, *v2); - values.push_back(v2); - skipWhitespace(s); - if (*s == ']') break; - if (*s != ',') throw JSONParseError("expected ',' or ']' after JSON array element"); - s++; - } - s++; - state.mkList(v, values.size()); - for (size_t n = 0; n < values.size(); ++n) - v.listElems()[n] = values[n]; + if (*s == '[') { + s++; + ValueVector values; + values.reserve(128); + skipWhitespace(s); + while (1) { + if (values.empty() && *s == ']') break; + Value* v2 = state.allocValue(); + parseJSON(state, s, *v2); + values.push_back(v2); + skipWhitespace(s); + if (*s == ']') break; + if (*s != ',') + throw JSONParseError("expected ',' or ']' after JSON array element"); + s++; } + s++; + state.mkList(v, values.size()); + for (size_t n = 0; n < values.size(); ++n) v.listElems()[n] = values[n]; + } - else if (*s == '{') { - s++; - ValueMap attrs; - while (1) { - skipWhitespace(s); - if (attrs.empty() && *s == '}') break; - string name = parseJSONString(s); - skipWhitespace(s); - if (*s != ':') throw JSONParseError("expected ':' in JSON object"); - s++; - Value * v2 = state.allocValue(); - parseJSON(state, s, *v2); - attrs[state.symbols.create(name)] = v2; - skipWhitespace(s); - if (*s == '}') break; - if (*s != ',') throw JSONParseError("expected ',' or '}' after JSON member"); - s++; - } - state.mkAttrs(v, attrs.size()); - for (auto & i : attrs) - v.attrs->push_back(Attr(i.first, i.second)); - v.attrs->sort(); - s++; + else if (*s == '{') { + s++; + ValueMap attrs; + while (1) { + skipWhitespace(s); + if (attrs.empty() && *s == '}') break; + string name = parseJSONString(s); + skipWhitespace(s); + if (*s != ':') throw JSONParseError("expected ':' in JSON object"); + s++; + Value* v2 = state.allocValue(); + parseJSON(state, s, *v2); + attrs[state.symbols.create(name)] = v2; + skipWhitespace(s); + if (*s == '}') break; + if (*s != ',') + throw JSONParseError("expected ',' or '}' after JSON member"); + s++; } + state.mkAttrs(v, attrs.size()); + for (auto& i : attrs) v.attrs->push_back(Attr(i.first, i.second)); + v.attrs->sort(); + s++; + } - else if (*s == '"') { - mkString(v, parseJSONString(s)); - } + else if (*s == '"') { + mkString(v, parseJSONString(s)); + } - else if (isdigit(*s) || *s == '-' || *s == '.' ) { - // Buffer into a string first, then use built-in C++ conversions - std::string tmp_number; - ValueType number_type = tInt; - - while (isdigit(*s) || *s == '-' || *s == '.' || *s == 'e' || *s == 'E') { - if (*s == '.' || *s == 'e' || *s == 'E') - number_type = tFloat; - tmp_number += *s++; - } - - try { - if (number_type == tFloat) - mkFloat(v, stod(tmp_number)); - else - mkInt(v, stol(tmp_number)); - } catch (std::invalid_argument & e) { - throw JSONParseError("invalid JSON number"); - } catch (std::out_of_range & e) { - throw JSONParseError("out-of-range JSON number"); - } - } + else if (isdigit(*s) || *s == '-' || *s == '.') { + // Buffer into a string first, then use built-in C++ conversions + std::string tmp_number; + ValueType number_type = tInt; - else if (strncmp(s, "true", 4) == 0) { - s += 4; - mkBool(v, true); + while (isdigit(*s) || *s == '-' || *s == '.' || *s == 'e' || *s == 'E') { + if (*s == '.' || *s == 'e' || *s == 'E') number_type = tFloat; + tmp_number += *s++; } - else if (strncmp(s, "false", 5) == 0) { - s += 5; - mkBool(v, false); + try { + if (number_type == tFloat) + mkFloat(v, stod(tmp_number)); + else + mkInt(v, stol(tmp_number)); + } catch (std::invalid_argument& e) { + throw JSONParseError("invalid JSON number"); + } catch (std::out_of_range& e) { + throw JSONParseError("out-of-range JSON number"); } + } - else if (strncmp(s, "null", 4) == 0) { - s += 4; - mkNull(v); - } + else if (strncmp(s, "true", 4) == 0) { + s += 4; + mkBool(v, true); + } - else throw JSONParseError("unrecognised JSON value"); -} + else if (strncmp(s, "false", 5) == 0) { + s += 5; + mkBool(v, false); + } + else if (strncmp(s, "null", 4) == 0) { + s += 4; + mkNull(v); + } -void parseJSON(EvalState & state, const string & s_, Value & v) -{ - const char * s = s_.c_str(); - parseJSON(state, s, v); - skipWhitespace(s); - if (*s) throw JSONParseError(format("expected end-of-string while parsing JSON value: %1%") % s); + else + throw JSONParseError("unrecognised JSON value"); } - +void parseJSON(EvalState& state, const string& s_, Value& v) { + const char* s = s_.c_str(); + parseJSON(state, s, v); + skipWhitespace(s); + if (*s) + throw JSONParseError( + format("expected end-of-string while parsing JSON value: %1%") % s); } + +} // namespace nix |