[
  {
    "protoType": "double",
    "notes": "",
    "cppType": "double",
    "csType": "double",
    "goType": "float64",
    "javaType": "double",
    "phpType": "float",
    "pythonType": "float",
    "rubyType": "Float"
  },
  {
    "protoType": "float",
    "notes": "",
    "cppType": "float",
    "csType": "float",
    "goType": "float32",
    "javaType": "float",
    "phpType": "float",
    "pythonType": "float",
    "rubyType": "Float"
  },
  {
    "protoType": "int32",
    "notes": "Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead.",
    "cppType": "int32",
    "csType": "int",
    "goType": "int32",
    "javaType": "int",
    "phpType": "integer",
    "pythonType": "int",
    "rubyType": "Bignum or Fixnum (as required)"
  },
  {
    "protoType": "int64",
    "notes": "Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead.",
    "cppType": "int64",
    "csType": "long",
    "goType": "int64",
    "javaType": "long",
    "phpType": "integer/string",
    "pythonType": "int/long",
    "rubyType": "Bignum"
  },
  {
    "protoType": "uint32",
    "notes": "Uses variable-length encoding.",
    "cppType": "uint32",
    "csType": "uint",
    "goType": "uint32",
    "javaType": "int",
    "phpType": "integer",
    "pythonType": "int/long",
    "rubyType": "Bignum or Fixnum (as required)"
  },
  {
    "protoType": "uint64",
    "notes": "Uses variable-length encoding.",
    "cppType": "uint64",
    "csType": "ulong",
    "goType": "uint64",
    "javaType": "long",
    "phpType": "integer/string",
    "pythonType": "int/long",
    "rubyType": "Bignum or Fixnum (as required)"
  },
  {
    "protoType": "sint32",
    "notes": "Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.",
    "cppType": "int32",
    "csType": "int",
    "goType": "int32",
    "javaType": "int",
    "phpType": "integer",
    "pythonType": "int",
    "rubyType": "Bignum or Fixnum (as required)"
  },
  {
    "protoType": "sint64",
    "notes": "Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s.",
    "cppType": "int64",
    "csType": "long",
    "goType": "int64",
    "javaType": "long",
    "phpType": "integer/string",
    "pythonType": "int/long",
    "rubyType": "Bignum"
  },
  {
    "protoType": "fixed32",
    "notes": "Always four bytes. More efficient than uint32 if values are often greater than 2^28.",
    "cppType": "uint32",
    "csType": "uint",
    "goType": "uint32",
    "javaType": "int",
    "phpType": "integer",
    "pythonType": "int",
    "rubyType": "Bignum or Fixnum (as required)"
  },
  {
    "protoType": "fixed64",
    "notes": "Always eight bytes. More efficient than uint64 if values are often greater than 2^56.",
    "cppType": "uint64",
    "csType": "ulong",
    "goType": "uint64",
    "javaType": "long",
    "phpType": "integer/string",
    "pythonType": "int/long",
    "rubyType": "Bignum"
  },
  {
    "protoType": "sfixed32",
    "notes": "Always four bytes.",
    "cppType": "int32",
    "csType": "int",
    "goType": "int32",
    "javaType": "int",
    "phpType": "integer",
    "pythonType": "int",
    "rubyType": "Bignum or Fixnum (as required)"
  },
  {
    "protoType": "sfixed64",
    "notes": "Always eight bytes.",
    "cppType": "int64",
    "csType": "long",
    "goType": "int64",
    "javaType": "long",
    "phpType": "integer/string",
    "pythonType": "int/long",
    "rubyType": "Bignum"
  },
  {
    "protoType": "bool",
    "notes": "",
    "cppType": "bool",
    "csType": "bool",
    "goType": "bool",
    "javaType": "boolean",
    "phpType": "boolean",
    "pythonType": "boolean",
    "rubyType": "TrueClass/FalseClass"
  },
  {
    "protoType": "string",
    "notes": "A string must always contain UTF-8 encoded or 7-bit ASCII text.",
    "cppType": "string",
    "csType": "string",
    "goType": "string",
    "javaType": "String",
    "phpType": "string",
    "pythonType": "str/unicode",
    "rubyType": "String (UTF-8)"
  },
  {
    "protoType": "bytes",
    "notes": "May contain any arbitrary sequence of bytes.",
    "cppType": "string",
    "csType": "ByteString",
    "goType": "[]byte",
    "javaType": "ByteString",
    "phpType": "string",
    "pythonType": "str",
    "rubyType": "String (ASCII-8BIT)"
  }
]