revert 'Added structured error reporting to Reader.'

cdunn2001 · cdunn2001 · commit 8719073307e2 · 2015-02-18T09:26:27.000-06:00
revert 68db655 issue #147
diff --git a/include/json/reader.h b/include/json/reader.h
@@ -35,18 +35,6 @@ class JSON_API Reader {
   typedef char Char;
   typedef const Char* Location;
 
-  /** \brief An error tagged with where in the JSON text it was encountered.
-   *
-   * The offsets give the [start, limit) range of bytes within the text. Note
-   * that this is bytes, not codepoints.
-   *
-   */
-  struct StructuredError {
-    size_t offset_start;
-    size_t offset_limit;
-    std::string message;
-  };
-
   /** \brief Constructs a Reader allowing all features
    * for parsing.
    */
@@ -123,15 +111,6 @@ class JSON_API Reader {
    */
   std::string getFormattedErrorMessages() const;
 
-  /** \brief Returns a vector of structured erros encounted while parsing.
-   * \return A (possibly empty) vector of StructuredError objects. Currently
-   *         only one error can be returned, but the caller should tolerate
-   * multiple
-   *         errors.  This can occur if the parser recovers from a non-fatal
-   *         parse error and then encounters additional errors.
-   */
-  std::vector<StructuredError> getStructuredErrors() const;
-
 private:
   enum TokenType {
     tokenEndOfStream = 0,
diff --git a/include/json/value.h b/include/json/value.h
@@ -451,13 +451,6 @@ Json::Value obj_value(Json::objectValue); // {}
   iterator begin();
   iterator end();
 
-  // Accessors for the [start, limit) range of bytes within the JSON text from
-  // which this value was parsed, if any.
-  void setOffsetStart(size_t start);
-  void setOffsetLimit(size_t limit);
-  size_t getOffsetStart() const;
-  size_t getOffsetLimit() const;
-
 private:
   void initBasic(ValueType type, bool allocated = false);
 
@@ -514,11 +507,6 @@ Json::Value obj_value(Json::objectValue); // {}
   unsigned int memberNameIsStatic_ : 1;  // used by the ValueInternalMap container.
 #endif
   CommentInfo* comments_;
-
-  // [start, limit) byte offsets in the source JSON text from which this Value
-  // was extracted.
-  size_t start_;
-  size_t limit_;
 };
 
 /** \brief Experimental and untested: represents an element of the "path" to
diff --git a/src/lib_json/json_reader.cpp b/src/lib_json/json_reader.cpp
@@ -163,11 +163,9 @@ bool Reader::readValue() {
   switch (token.type_) {
   case tokenObjectBegin:
     successful = readObject(token);
-    currentValue().setOffsetLimit(current_ - begin_);
     break;
   case tokenArrayBegin:
     successful = readArray(token);
-    currentValue().setOffsetLimit(current_ - begin_);
     break;
   case tokenNumber:
     successful = decodeNumber(token);
@@ -179,24 +177,18 @@ bool Reader::readValue() {
     {
     Value v(true);
     currentValue().swapPayload(v);
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     }
     break;
   case tokenFalse:
     {
     Value v(false);
     currentValue().swapPayload(v);
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     }
     break;
   case tokenNull:
     {
     Value v;
     currentValue().swapPayload(v);
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     }
     break;
   case tokenArraySeparator:
@@ -206,14 +198,10 @@ bool Reader::readValue() {
       current_--;
       Value v;
       currentValue().swapPayload(v);
-      currentValue().setOffsetStart(current_ - begin_ - 1);
-      currentValue().setOffsetLimit(current_ - begin_);
       break;
     }
   // Else, fall through...
   default:
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     return addError("Syntax error: value, object or array expected.", token);
   }
 
@@ -441,12 +429,11 @@ bool Reader::readString() {
   return c == '"';
 }
 
-bool Reader::readObject(Token& tokenStart) {
+bool Reader::readObject(Token& /*tokenStart*/) {
   Token tokenName;
   std::string name;
   Value init(objectValue);
   currentValue().swapPayload(init);
-  currentValue().setOffsetStart(tokenStart.start_ - begin_);
   while (readToken(tokenName)) {
     bool initialTokenOk = true;
     while (tokenName.type_ == tokenComment && initialTokenOk)
@@ -497,10 +484,9 @@ bool Reader::readObject(Token& tokenStart) {
       "Missing '}' or object member name", tokenName, tokenObjectEnd);
 }
 
-bool Reader::readArray(Token& tokenStart) {
+bool Reader::readArray(Token& /*tokenStart*/) {
   Value init(arrayValue);
   currentValue().swapPayload(init);
-  currentValue().setOffsetStart(tokenStart.start_ - begin_);
   skipSpaces();
   if (*current_ == ']') // empty array
   {
@@ -540,8 +526,6 @@ bool Reader::decodeNumber(Token& token) {
   if (!decodeNumber(token, decoded))
     return false;
   currentValue().swapPayload(decoded);
-  currentValue().setOffsetStart(token.start_ - begin_);
-  currentValue().setOffsetLimit(token.end_ - begin_);
   return true;
 }
 
@@ -590,8 +574,6 @@ bool Reader::decodeDouble(Token& token) {
   if (!decodeDouble(token, decoded))
     return false;
   currentValue().swapPayload(decoded);
-  currentValue().setOffsetStart(token.start_ - begin_);
-  currentValue().setOffsetLimit(token.end_ - begin_);
   return true;
 }
 
@@ -637,8 +619,6 @@ bool Reader::decodeString(Token& token) {
     return false;
   Value decoded(decoded_string);
   currentValue().swapPayload(decoded);
-  currentValue().setOffsetStart(token.start_ - begin_);
-  currentValue().setOffsetLimit(token.end_ - begin_);
   return true;
 }
 
@@ -850,20 +830,6 @@ std::string Reader::getFormattedErrorMessages() const {
   return formattedMessage;
 }
 
-std::vector<Reader::StructuredError> Reader::getStructuredErrors() const {
-  std::vector<Reader::StructuredError> allErrors;
-  for (Errors::const_iterator itError = errors_.begin();
-       itError != errors_.end();
-       ++itError) {
-    const ErrorInfo& error = *itError;
-    Reader::StructuredError structured;
-    structured.offset_start = error.token_.start_ - begin_;
-    structured.offset_limit = error.token_.end_ - begin_;
-    structured.message = error.message_;
-    allErrors.push_back(structured);
-  }
-  return allErrors;
-}
 // Reader
 /////////////////////////
 
@@ -919,7 +885,6 @@ class OurReader {
              Value& root,
              bool collectComments = true);
   std::string getFormattedErrorMessages() const;
-  std::vector<StructuredError> getStructuredErrors() const;
 
 private:
   OurReader(OurReader const&);  // no impl
@@ -1083,11 +1048,9 @@ bool OurReader::readValue() {
   switch (token.type_) {
   case tokenObjectBegin:
     successful = readObject(token);
-    currentValue().setOffsetLimit(current_ - begin_);
     break;
   case tokenArrayBegin:
     successful = readArray(token);
-    currentValue().setOffsetLimit(current_ - begin_);
     break;
   case tokenNumber:
     successful = decodeNumber(token);
@@ -1099,24 +1062,18 @@ bool OurReader::readValue() {
     {
     Value v(true);
     currentValue().swapPayload(v);
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     }
     break;
   case tokenFalse:
     {
     Value v(false);
     currentValue().swapPayload(v);
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     }
     break;
   case tokenNull:
     {
     Value v;
     currentValue().swapPayload(v);
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     }
     break;
   case tokenArraySeparator:
@@ -1126,14 +1083,10 @@ bool OurReader::readValue() {
       current_--;
       Value v;
       currentValue().swapPayload(v);
-      currentValue().setOffsetStart(current_ - begin_ - 1);
-      currentValue().setOffsetLimit(current_ - begin_);
       break;
     }
   // Else, fall through...
   default:
-    currentValue().setOffsetStart(token.start_ - begin_);
-    currentValue().setOffsetLimit(token.end_ - begin_);
     return addError("Syntax error: value, object or array expected.", token);
   }
 
@@ -1347,7 +1300,6 @@ bool OurReader::readObject(Token& tokenStart) {
   std::string name;
   Value init(objectValue);
   currentValue().swapPayload(init);
-  currentValue().setOffsetStart(tokenStart.start_ - begin_);
   while (readToken(tokenName)) {
     bool initialTokenOk = true;
     while (tokenName.type_ == tokenComment && initialTokenOk)
@@ -1401,7 +1353,6 @@ bool OurReader::readObject(Token& tokenStart) {
 bool OurReader::readArray(Token& tokenStart) {
   Value init(arrayValue);
   currentValue().swapPayload(init);
-  currentValue().setOffsetStart(tokenStart.start_ - begin_);
   skipSpaces();
   if (*current_ == ']') // empty array
   {
@@ -1441,8 +1392,6 @@ bool OurReader::decodeNumber(Token& token) {
   if (!decodeNumber(token, decoded))
     return false;
   currentValue().swapPayload(decoded);
-  currentValue().setOffsetStart(token.start_ - begin_);
-  currentValue().setOffsetLimit(token.end_ - begin_);
   return true;
 }
 
@@ -1491,8 +1440,6 @@ bool OurReader::decodeDouble(Token& token) {
   if (!decodeDouble(token, decoded))
     return false;
   currentValue().swapPayload(decoded);
-  currentValue().setOffsetStart(token.start_ - begin_);
-  currentValue().setOffsetLimit(token.end_ - begin_);
   return true;
 }
 
@@ -1538,8 +1485,6 @@ bool OurReader::decodeString(Token& token) {
     return false;
   Value decoded(decoded_string);
   currentValue().swapPayload(decoded);
-  currentValue().setOffsetStart(token.start_ - begin_);
-  currentValue().setOffsetLimit(token.end_ - begin_);
   return true;
 }
 
@@ -1746,21 +1691,6 @@ std::string OurReader::getFormattedErrorMessages() const {
   return formattedMessage;
 }
 
-std::vector<OurReader::StructuredError> OurReader::getStructuredErrors() const {
-  std::vector<OurReader::StructuredError> allErrors;
-  for (Errors::const_iterator itError = errors_.begin();
-       itError != errors_.end();
-       ++itError) {
-    const ErrorInfo& error = *itError;
-    OurReader::StructuredError structured;
-    structured.offset_start = error.token_.start_ - begin_;
-    structured.offset_limit = error.token_.end_ - begin_;
-    structured.message = error.message_;
-    allErrors.push_back(structured);
-  }
-  return allErrors;
-}
-
 
 class OurCharReader : public CharReader {
   bool const collectComments_;
diff --git a/src/lib_json/json_value.cpp b/src/lib_json/json_value.cpp
@@ -332,7 +332,7 @@ Value::Value(const Value& other)
       itemIsUsed_(0)
 #endif
       ,
-      comments_(0), start_(other.start_), limit_(other.limit_) {
+      comments_(0) {
   switch (type_) {
   case nullValue:
   case intValue:
@@ -429,8 +429,6 @@ void Value::swapPayload(Value& other) {
 void Value::swap(Value& other) {
   swapPayload(other);
   std::swap(comments_, other.comments_);
-  std::swap(start_, other.start_);
-  std::swap(limit_, other.limit_);
 }
 
 ValueType Value::type() const { return type_; }
@@ -805,8 +803,6 @@ void Value::clear() {
   JSON_ASSERT_MESSAGE(type_ == nullValue || type_ == arrayValue ||
                           type_ == objectValue,
                       "in Json::Value::clear(): requires complex value");
-  start_ = 0;
-  limit_ = 0;
   switch (type_) {
 #ifndef JSON_VALUE_USE_INTERNAL_MAP
   case arrayValue:
@@ -911,8 +907,6 @@ void Value::initBasic(ValueType type, bool allocated) {
   itemIsUsed_ = 0;
 #endif
   comments_ = 0;
-  start_ = 0;
-  limit_ = 0;
 }
 
 Value& Value::resolveReference(const char* key, bool isStatic) {
@@ -1259,14 +1253,6 @@ std::string Value::getComment(CommentPlacement placement) const {
   return "";
 }
 
-void Value::setOffsetStart(size_t start) { start_ = start; }
-
-void Value::setOffsetLimit(size_t limit) { limit_ = limit; }
-
-size_t Value::getOffsetStart() const { return start_; }
-
-size_t Value::getOffsetLimit() const { return limit_; }
-
 std::string Value::toStyledString() const {
   StyledWriter writer;
   return writer.write(*this);
diff --git a/src/test_lib_json/main.cpp b/src/test_lib_json/main.cpp
