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Posted to commits@mesos.apache.org by jo...@apache.org on 2015/09/17 00:44:00 UTC

[3/5] mesos git commit: Revert "Integer Precision for JSON <-> Protobuf conversions."

Revert "Integer Precision for JSON <-> Protobuf conversions."

This reverts commit 4807db6ceb7fafe59c28cbcfb31334ca7061dd59.


Project: http://git-wip-us.apache.org/repos/asf/mesos/repo
Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/f8703752
Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/f8703752
Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/f8703752

Branch: refs/heads/master
Commit: f8703752995a1a538cc9cd13a55666587c492d96
Parents: fa80dcb
Author: Joris Van Remoortere <jo...@gmail.com>
Authored: Wed Sep 16 18:42:50 2015 -0400
Committer: Joris Van Remoortere <jo...@gmail.com>
Committed: Wed Sep 16 18:42:50 2015 -0400

----------------------------------------------------------------------
 .../3rdparty/stout/include/stout/json.hpp       | 157 ++-----------------
 .../3rdparty/stout/include/stout/protobuf.hpp   |  54 +++++--
 .../3rdparty/stout/tests/json_tests.cpp         |  74 +++------
 .../3rdparty/stout/tests/protobuf_tests.cpp     |  82 +---------
 4 files changed, 78 insertions(+), 289 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/mesos/blob/f8703752/3rdparty/libprocess/3rdparty/stout/include/stout/json.hpp
----------------------------------------------------------------------
diff --git a/3rdparty/libprocess/3rdparty/stout/include/stout/json.hpp b/3rdparty/libprocess/3rdparty/stout/include/stout/json.hpp
index 6e667a1..f28138c 100644
--- a/3rdparty/libprocess/3rdparty/stout/include/stout/json.hpp
+++ b/3rdparty/libprocess/3rdparty/stout/include/stout/json.hpp
@@ -21,7 +21,6 @@
 #include <limits>
 #include <map>
 #include <string>
-#include <type_traits>
 #include <vector>
 
 #include <boost/type_traits/is_arithmetic.hpp>
@@ -73,71 +72,11 @@ struct String
 };
 
 
-// NOTE: Due to how PicoJson parses unsigned integers, a roundtrip from Number
-// to JSON and back to Number will result in:
-//   - a signed integer, if the value is less than or equal to INT64_MAX;
-//   - or a double, if the value is greater than INT64_MAX.
-// See: https://github.com/kazuho/picojson/blob/rel/v1.3.0/picojson.h#L777-L781
 struct Number
 {
   Number() : value(0) {}
-
-  template <typename T>
-  Number(
-      T _value,
-      typename std::enable_if<std::is_floating_point<T>::value, int>::type = 0)
-    : type(FLOATING), value(_value) {}
-
-  template <typename T>
-  Number(
-      T _value,
-      typename std::enable_if<
-          std::is_integral<T>::value && std::is_signed<T>::value,
-          int>::type = 0)
-    : type(SIGNED_INTEGER), signed_integer(_value) {}
-
-  template <typename T>
-  Number(
-      T _value,
-      typename std::enable_if<
-          std::is_integral<T>::value && std::is_unsigned<T>::value,
-          int>::type = 0)
-    : type(UNSIGNED_INTEGER), unsigned_integer(_value) {}
-
-  template <typename T>
-  T as() const
-  {
-    switch (type) {
-      case FLOATING:
-        return static_cast<T>(value);
-      case SIGNED_INTEGER:
-        return static_cast<T>(signed_integer);
-      case UNSIGNED_INTEGER:
-        return static_cast<T>(unsigned_integer);
-
-      // NOTE: By not setting a default we leverage the compiler
-      // errors when the enumeration is augmented to find all
-      // the cases we need to provide.
-    }
-  }
-
-  enum Type
-  {
-    FLOATING,
-    SIGNED_INTEGER,
-    UNSIGNED_INTEGER,
-  } type;
-
-private:
-  friend struct Value;
-  friend struct Comparator;
-  friend std::ostream& operator<<(std::ostream& stream, const Number& number);
-
-  union {
-    double value;
-    int64_t signed_integer;
-    uint64_t unsigned_integer;
-  };
+  Number(double _value) : value(_value) {}
+  double value;
 };
 
 
@@ -268,8 +207,6 @@ struct Value : internal::Variant
   bool contains(const Value& other) const;
 
 private:
-  friend struct Comparator;
-
   // A class which follows the visitor pattern and implements the
   // containment rules described in the documentation of 'contains'.
   // See 'bool Value::contains(const Value& other) const'.
@@ -320,6 +257,7 @@ inline const Value& Value::as<Value>() const
 }
 
 
+
 template <typename T>
 Result<T> Object::find(const std::string& path) const
 {
@@ -446,53 +384,7 @@ inline bool Value::ContainmentComparator::operator()(const Number& other) const
   if (!self.is<Number>()) {
     return false;
   }
-
-  // NOTE: For the following switch statements, we do not set a default
-  // case in order to leverage the compiler errors when the enumeration
-  // is augmented to find all the cases we need to provide.
-
-  // NOTE: Using '==' is unsafe for unsigned-signed integer comparisons.
-  // The compiler will automatically cast the signed integer to an
-  // unsigned integer.  i.e. If the signed integer was negative, it
-  // might be converted to a large positive number.
-  // Using the '==' operator *is* safe for double-integer comparisons.
-
-  const Number& number = self.as<Number>();
-  switch (number.type) {
-    case Number::FLOATING:
-      switch (other.type) {
-        case Number::FLOATING:
-          return number.value == other.value;
-        case Number::SIGNED_INTEGER:
-          return number.value == other.signed_integer;
-        case Number::UNSIGNED_INTEGER:
-          return number.value == other.unsigned_integer;
-      }
-
-    case Number::SIGNED_INTEGER:
-      switch (other.type) {
-        case Number::FLOATING:
-          return number.signed_integer == other.value;
-        case Number::SIGNED_INTEGER:
-          return number.signed_integer == other.signed_integer;
-        case Number::UNSIGNED_INTEGER:
-          // See note above for why this is not a simple '==' expression.
-          return number.signed_integer >= 0 &&
-            number.as<uint64_t>() == other.unsigned_integer;
-      }
-
-    case Number::UNSIGNED_INTEGER:
-      switch (other.type) {
-        case Number::FLOATING:
-          return number.unsigned_integer == other.value;
-        case Number::SIGNED_INTEGER:
-          // See note above for why this is not a simple '==' expression.
-          return other.signed_integer >= 0 &&
-            number.unsigned_integer == other.as<uint64_t>();
-        case Number::UNSIGNED_INTEGER:
-          return number.unsigned_integer == other.unsigned_integer;
-      }
-  }
+  return self.as<Number>().value == other.value;
 }
 
 
@@ -554,11 +446,12 @@ struct Comparator : boost::static_visitor<bool>
     return false;
   }
 
-  bool operator()(const Number& other) const
+  bool operator()(const Number& number) const
   {
-    // Delegate to the containment comparator.
-    // See Value::ContainmentComparator::operator(Number).
-    return Value::ContainmentComparator(value)(other);
+    if (value.is<Number>()) {
+      return value.as<Number>().value == number.value;
+    }
+    return false;
   }
 
   bool operator()(const Array& array) const
@@ -609,32 +502,10 @@ inline std::ostream& operator<<(std::ostream& out, const String& string)
 
 inline std::ostream& operator<<(std::ostream& out, const Number& number)
 {
-  switch (number.type) {
-    case Number::FLOATING: {
-      // Prints a floating point value, with the specified precision, see:
-      // http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2005.pdf
-      // Additionally ensures that a decimal point is in the output.
-      char buffer[50] {}; // More than long enough for the specified precision.
-      snprintf(
-          buffer,
-          sizeof(buffer),
-          "%#.*g",
-          std::numeric_limits<double>::digits10,
-          number.value);
-
-      // Get rid of trailing zeroes before outputting.
-      // Otherwise, printing 1.0 would result in "1.00000000000000".
-      return out << strings::trim(buffer, strings::SUFFIX, "0");
-    }
-    case Number::SIGNED_INTEGER:
-      return out << number.signed_integer;
-    case Number::UNSIGNED_INTEGER:
-      return out << number.unsigned_integer;
-
-    // NOTE: By not setting a default we leverage the compiler
-    // errors when the enumeration is augmented to find all
-    // the cases we need to provide.
-  }
+  // Use the guaranteed accurate precision, see:
+  // http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2005.pdf
+  return out << std::setprecision(std::numeric_limits<double>::digits10)
+             << number.value;
 }
 
 
@@ -704,8 +575,6 @@ inline Value convert(const picojson::value& value)
       array.values.push_back(convert(value));
     }
     return array;
-  } else if (value.is<int64_t>()) {
-    return Number(value.get<int64_t>());
   } else if (value.is<double>()) {
     return Number(value.get<double>());
   } else if (value.is<std::string>()) {

http://git-wip-us.apache.org/repos/asf/mesos/blob/f8703752/3rdparty/libprocess/3rdparty/stout/include/stout/protobuf.hpp
----------------------------------------------------------------------
diff --git a/3rdparty/libprocess/3rdparty/stout/include/stout/protobuf.hpp b/3rdparty/libprocess/3rdparty/stout/include/stout/protobuf.hpp
index 2285ce9..115cc0c 100644
--- a/3rdparty/libprocess/3rdparty/stout/include/stout/protobuf.hpp
+++ b/3rdparty/libprocess/3rdparty/stout/include/stout/protobuf.hpp
@@ -391,50 +391,80 @@ struct Parser : boost::static_visitor<Try<Nothing> >
     switch (field->type()) {
       case google::protobuf::FieldDescriptor::TYPE_DOUBLE:
         if (field->is_repeated()) {
-          reflection->AddDouble(message, field, number.as<double>());
+          reflection->AddDouble(message, field, number.value);
         } else {
-          reflection->SetDouble(message, field, number.as<double>());
+          reflection->SetDouble(message, field, number.value);
         }
         break;
       case google::protobuf::FieldDescriptor::TYPE_FLOAT:
         if (field->is_repeated()) {
-          reflection->AddFloat(message, field, number.as<float>());
+          reflection->AddFloat(
+              message,
+              field,
+              static_cast<float>(number.value));
         } else {
-          reflection->SetFloat(message, field, number.as<float>());
+          reflection->SetFloat(
+              message,
+              field,
+              static_cast<float>(number.value));
         }
         break;
       case google::protobuf::FieldDescriptor::TYPE_INT64:
       case google::protobuf::FieldDescriptor::TYPE_SINT64:
       case google::protobuf::FieldDescriptor::TYPE_SFIXED64:
         if (field->is_repeated()) {
-          reflection->AddInt64(message, field, number.as<int64_t>());
+          reflection->AddInt64(
+              message,
+              field,
+              static_cast<int64_t>(number.value));
         } else {
-          reflection->SetInt64(message, field, number.as<int64_t>());
+          reflection->SetInt64(
+              message,
+              field,
+              static_cast<int64_t>(number.value));
         }
         break;
       case google::protobuf::FieldDescriptor::TYPE_UINT64:
       case google::protobuf::FieldDescriptor::TYPE_FIXED64:
         if (field->is_repeated()) {
-          reflection->AddUInt64(message, field, number.as<uint64_t>());
+          reflection->AddUInt64(
+              message,
+              field,
+              static_cast<uint64_t>(number.value));
         } else {
-          reflection->SetUInt64(message, field, number.as<uint64_t>());
+          reflection->SetUInt64(
+              message,
+              field,
+              static_cast<uint64_t>(number.value));
         }
         break;
       case google::protobuf::FieldDescriptor::TYPE_INT32:
       case google::protobuf::FieldDescriptor::TYPE_SINT32:
       case google::protobuf::FieldDescriptor::TYPE_SFIXED32:
         if (field->is_repeated()) {
-          reflection->AddInt32(message, field, number.as<int32_t>());
+          reflection->AddInt32(
+              message,
+              field,
+              static_cast<int32_t>(number.value));
         } else {
-          reflection->SetInt32(message, field, number.as<int32_t>());
+          reflection->SetInt32(
+              message,
+              field,
+              static_cast<int32_t>(number.value));
         }
         break;
       case google::protobuf::FieldDescriptor::TYPE_UINT32:
       case google::protobuf::FieldDescriptor::TYPE_FIXED32:
         if (field->is_repeated()) {
-          reflection->AddUInt32(message, field, number.as<uint32_t>());
+          reflection->AddUInt32(
+              message,
+              field,
+              static_cast<uint32_t>(number.value));
         } else {
-          reflection->SetUInt32(message, field, number.as<uint32_t>());
+          reflection->SetUInt32(
+              message,
+              field,
+              static_cast<uint32_t>(number.value));
         }
         break;
       default:

http://git-wip-us.apache.org/repos/asf/mesos/blob/f8703752/3rdparty/libprocess/3rdparty/stout/tests/json_tests.cpp
----------------------------------------------------------------------
diff --git a/3rdparty/libprocess/3rdparty/stout/tests/json_tests.cpp b/3rdparty/libprocess/3rdparty/stout/tests/json_tests.cpp
index 88b6147..850650c 100644
--- a/3rdparty/libprocess/3rdparty/stout/tests/json_tests.cpp
+++ b/3rdparty/libprocess/3rdparty/stout/tests/json_tests.cpp
@@ -50,50 +50,18 @@ TEST(JsonTest, BinaryData)
 
 TEST(JsonTest, NumberFormat)
 {
-  // Test whole numbers (as doubles).
-  EXPECT_EQ("0.", stringify(JSON::Number(0.0)));
-  EXPECT_EQ("1.", stringify(JSON::Number(1.0)));
+  // Test whole numbers.
+  EXPECT_EQ("0", stringify(JSON::Number(0.0)));
+  EXPECT_EQ("1", stringify(JSON::Number(1.0)));
 
   // Negative.
-  EXPECT_EQ("-1.", stringify(JSON::Number(-1.0)));
-
-  // Test integers.
-  EXPECT_EQ("0", stringify(JSON::Number(0)));
-  EXPECT_EQ("2", stringify(JSON::Number(2)));
-  EXPECT_EQ("-2", stringify(JSON::Number(-2)));
+  EXPECT_EQ("-1", stringify(JSON::Number(-1.0)));
 
   // Expect at least 15 digits of precision.
   EXPECT_EQ("1234567890.12345", stringify(JSON::Number(1234567890.12345)));
 }
 
 
-TEST(JsonTest, NumberComparisons)
-{
-  // Unsigned and signed comparisons.
-  EXPECT_EQ(JSON::Number(1U), JSON::Number((int64_t) 1));
-  EXPECT_EQ(JSON::Number(0U), JSON::Number((int64_t) 0));
-
-  EXPECT_NE(JSON::Number(1U), JSON::Number(-1));
-  EXPECT_NE(JSON::Number((uint64_t) -1), JSON::Number(-1));
-
-  // Signed and unsigned comparisons (opposite order of above).
-  EXPECT_EQ(JSON::Number((int64_t) 1), JSON::Number(1U));
-  EXPECT_EQ(JSON::Number((int64_t) 0), JSON::Number(0U));
-
-  EXPECT_NE(JSON::Number(-1), JSON::Number(1U));
-  EXPECT_NE(JSON::Number(-1), JSON::Number((uint64_t) -1));
-
-  // Make sure we aren't doing an implicit cast from int64_t to uint64_t.
-  // These have the same bit representation (64h'8000_0000_0000_0001).
-  EXPECT_NE(
-      JSON::Number(9223372036854775809U),
-      JSON::Number(-9223372036854775807));
-  EXPECT_NE(
-      JSON::Number(-9223372036854775807),
-      JSON::Number(9223372036854775809U));
-}
-
-
 TEST(JsonTest, BooleanFormat)
 {
   EXPECT_EQ("false", stringify(JSON::False()));
@@ -153,50 +121,44 @@ TEST(JsonTest, NumericAssignment)
   s.st_nlink = 1;
   JSON::Value v = s.st_nlink;
   JSON::Number d = s.st_nlink;
-  EXPECT_NE(get<JSON::Number>(v).type, JSON::Number::FLOATING);
-  EXPECT_EQ(get<JSON::Number>(v).as<int64_t>(), 1);
-  EXPECT_EQ(d.as<int64_t>(), 1);
+  EXPECT_EQ(get<JSON::Number>(v).value, 1.0);
+  EXPECT_EQ(d.value, 1.0);
 
   s.st_size = 2;
   v = s.st_size;
   d = s.st_size;
-  EXPECT_NE(get<JSON::Number>(v).type, JSON::Number::FLOATING);
-  EXPECT_EQ(get<JSON::Number>(v).as<int64_t>(), 2);
-  EXPECT_EQ(d.as<int64_t>(), 2);
+  EXPECT_EQ(get<JSON::Number>(v).value, 2.0);
+  EXPECT_EQ(d.value, 2.0);
 
   s.st_mtime = 3;
   v = s.st_mtime;
   d = s.st_mtime;
-  EXPECT_EQ(get<JSON::Number>(v).as<int64_t>(), 3);
-  EXPECT_EQ(d.as<int64_t>(), 3);
+  EXPECT_EQ(get<JSON::Number>(v).value, 3.0);
+  EXPECT_EQ(d.value, 3.0);
 
   size_t st = 4;
   v = st;
   d = st;
-  EXPECT_EQ(get<JSON::Number>(v).type, JSON::Number::UNSIGNED_INTEGER);
-  EXPECT_EQ(get<JSON::Number>(v).as<uint64_t>(), 4);
-  EXPECT_EQ(d.as<uint64_t>(), 4);
+  EXPECT_EQ(get<JSON::Number>(v).value, 4.0);
+  EXPECT_EQ(d.value, 4.0);
 
   uint64_t ui64 = 5;
   v = ui64;
   d = ui64;
-  EXPECT_EQ(get<JSON::Number>(v).type, JSON::Number::UNSIGNED_INTEGER);
-  EXPECT_EQ(get<JSON::Number>(v).as<uint64_t>(), 5);
-  EXPECT_EQ(d.as<uint64_t>(), 5);
+  EXPECT_EQ(get<JSON::Number>(v).value, 5.0);
+  EXPECT_EQ(d.value, 5.0);
 
   const unsigned int ui = 6;
   v = ui;
   d = ui;
-  EXPECT_EQ(get<JSON::Number>(v).type, JSON::Number::UNSIGNED_INTEGER);
-  EXPECT_EQ(get<JSON::Number>(v).as<uint64_t>(), 6);
-  EXPECT_EQ(d.as<uint64_t>(), 6);
+  EXPECT_EQ(get<JSON::Number>(v).value, 6.0);
+  EXPECT_EQ(d.value, 6.0);
 
   int i = 7;
   v = i;
   d = i;
-  EXPECT_EQ(get<JSON::Number>(v).type, JSON::Number::SIGNED_INTEGER);
-  EXPECT_EQ(get<JSON::Number>(v).as<int64_t>(), 7);
-  EXPECT_EQ(d.as<int64_t>(), 7);
+  EXPECT_EQ(get<JSON::Number>(v).value, 7.0);
+  EXPECT_EQ(d.value, 7.0);
 }
 
 

http://git-wip-us.apache.org/repos/asf/mesos/blob/f8703752/3rdparty/libprocess/3rdparty/stout/tests/protobuf_tests.cpp
----------------------------------------------------------------------
diff --git a/3rdparty/libprocess/3rdparty/stout/tests/protobuf_tests.cpp b/3rdparty/libprocess/3rdparty/stout/tests/protobuf_tests.cpp
index 01d5ec7..87737dd 100644
--- a/3rdparty/libprocess/3rdparty/stout/tests/protobuf_tests.cpp
+++ b/3rdparty/libprocess/3rdparty/stout/tests/protobuf_tests.cpp
@@ -108,18 +108,18 @@ TEST(ProtobufTest, JSON)
       "{"
       "  \"b\": true,"
       "  \"bytes\": \"Ynl0ZXM=\","
-      "  \"d\": 1.,"
+      "  \"d\": 1,"
       "  \"e\": \"ONE\","
-      "  \"f\": 1.,"
+      "  \"f\": 1,"
       "  \"int32\": -1,"
       "  \"int64\": -1,"
       "  \"nested\": { \"str\": \"nested\"},"
-      "  \"optional_default\": 42.,"
+      "  \"optional_default\": 42,"
       "  \"repeated_bool\": [true],"
       "  \"repeated_bytes\": [\"cmVwZWF0ZWRfYnl0ZXM=\"],"
-      "  \"repeated_double\": [1., 2.],"
+      "  \"repeated_double\": [1, 2],"
       "  \"repeated_enum\": [\"TWO\"],"
-      "  \"repeated_float\": [1.],"
+      "  \"repeated_float\": [1],"
       "  \"repeated_int32\": [-2],"
       "  \"repeated_int64\": [-2],"
       "  \"repeated_nested\": [ { \"str\": \"repeated_nested\" } ],"
@@ -233,75 +233,3 @@ TEST(ProtobufTest, ParseJSONArray)
   EXPECT_EQ(message, repeated.Get(0));
   EXPECT_EQ(message, repeated.Get(1));
 }
-
-
-// Tests that integer precision is maintained between
-// JSON <-> Protobuf conversions.
-TEST(ProtobufTest, JsonLargeIntegers)
-{
-  // These numbers are equal or close to the integer limits.
-  tests::Message message;
-  message.set_int32(-2147483647);
-  message.set_int64(-9223372036854775807);
-  message.set_uint32(4294967295U);
-  message.set_uint64(9223372036854775807);
-  message.set_sint32(-1234567890);
-  message.set_sint64(-1234567890123456789);
-  message.add_repeated_int32(-2000000000);
-  message.add_repeated_int64(-9000000000000000000);
-  message.add_repeated_uint32(3000000000U);
-  message.add_repeated_uint64(7000000000000000000);
-  message.add_repeated_sint32(-1000000000);
-  message.add_repeated_sint64(-8000000000000000000);
-
-  // Parts of the protobuf that are required.  Copied from the above test.
-  message.set_b(true);
-  message.set_str("string");
-  message.set_bytes("bytes");
-  message.set_f(1.0);
-  message.set_d(1.0);
-  message.set_e(tests::ONE);
-  message.mutable_nested()->set_str("nested");
-
-  // The keys are in alphabetical order.
-  string expected = strings::remove(
-      "{"
-      "  \"b\": true,"
-      "  \"bytes\": \"Ynl0ZXM=\","
-      "  \"d\": 1.,"
-      "  \"e\": \"ONE\","
-      "  \"f\": 1.,"
-      "  \"int32\": -2147483647,"
-      "  \"int64\": -9223372036854775807,"
-      "  \"nested\": {\"str\": \"nested\"},"
-      "  \"optional_default\": 42.,"
-      "  \"repeated_int32\": [-2000000000],"
-      "  \"repeated_int64\": [-9000000000000000000],"
-      "  \"repeated_sint32\": [-1000000000],"
-      "  \"repeated_sint64\": [-8000000000000000000],"
-      "  \"repeated_uint32\": [3000000000],"
-      "  \"repeated_uint64\": [7000000000000000000],"
-      "  \"sint32\": -1234567890,"
-      "  \"sint64\": -1234567890123456789,"
-      "  \"str\": \"string\","
-      "  \"uint32\": 4294967295,"
-      "  \"uint64\": 9223372036854775807"
-      "}",
-      " ");
-
-  // Check JSON -> String.
-  JSON::Object object = JSON::Protobuf(message);
-  EXPECT_EQ(expected, stringify(object));
-
-  // Check JSON -> Protobuf.
-  Try<tests::Message> parse = protobuf::parse<tests::Message>(object);
-  ASSERT_SOME(parse);
-
-  // Check Protobuf -> JSON.
-  EXPECT_EQ(object, JSON::Protobuf(parse.get()));
-
-  // Check String -> JSON.
-  Try<JSON::Object> json = JSON::parse<JSON::Object>(expected);
-  ASSERT_SOME(json);
-  EXPECT_EQ(object, json.get());
-}