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Add GetValueByPointerWithDefault() overloads

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This commit is contained in:
miloyip 2015-05-02 22:08:03 +08:00
parent 32b45f6e6d
commit d0d18847c5
2 changed files with 124 additions and 1 deletions
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35
include/rapidjson/pointer.h
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@ -445,12 +445,47 @@ typename T::ValueType& GetValueByPointerWithDefault(T& root, const GenericPointe
return pointer.GetWithDefault(root, defaultValue, a);
}
template <typename T>
typename T::ValueType& GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, GenericStringRef<typename T::Ch> defaultValue, typename T::AllocatorType& a) {
return pointer.GetWithDefault(root, defaultValue, a);
}
template <typename T>
typename T::ValueType& GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, const typename T::Ch* defaultValue, typename T::AllocatorType& a) {
return pointer.GetWithDefault(root, defaultValue, a);
}
template <typename T, typename T2>
RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename T::ValueType&))
GetValueByPointerWithDefault(T& root, const GenericPointer<typename T::ValueType>& pointer, T2 defaultValue, typename T::AllocatorType& a) {
return pointer.GetWithDefault(root, defaultValue, a);
}
template <typename T, typename CharType, size_t N>
typename T::ValueType& GetValueByPointerWithDefault(T& root, const CharType(&source)[N], const typename T::ValueType& defaultValue, typename T::AllocatorType& a) {
const GenericPointer<typename T::ValueType> pointer(source, N - 1);
return GetValueByPointerWithDefault(root, pointer, defaultValue, a);
}
template <typename T, typename CharType, size_t N>
typename T::ValueType& GetValueByPointerWithDefault(T& root, const CharType(&source)[N], GenericStringRef<typename T::Ch> defaultValue, typename T::AllocatorType& a) {
const GenericPointer<typename T::ValueType> pointer(source, N - 1);
return GetValueByPointerWithDefault(root, pointer, defaultValue, a);
}
template <typename T, typename CharType, size_t N>
typename T::ValueType& GetValueByPointerWithDefault(T& root, const CharType(&source)[N], const typename T::Ch* defaultValue, typename T::AllocatorType& a) {
const GenericPointer<typename T::ValueType> pointer(source, N - 1);
return GetValueByPointerWithDefault(root, pointer, defaultValue, a);
}
template <typename T, typename CharType, size_t N, typename T2>
RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T2>, internal::IsGenericValue<T2> >), (typename T::ValueType&))
GetValueByPointerWithDefault(T& root, const CharType(&source)[N], T2 defaultValue, typename T::AllocatorType& a) {
const GenericPointer<typename T::ValueType> pointer(source, N - 1);
return GetValueByPointerWithDefault(root, pointer, defaultValue, a);
}
template <typename T>
typename T::ValueType& SetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, typename T::ValueType& value, typename T::AllocatorType& a) {
return pointer.Set(root, value, a);

90
test/unittest/pointertest.cpp
View File

@ -444,14 +444,102 @@ TEST(Pointer, GetValueByPointer) {
EXPECT_EQ(&d["foo"][0], GetValueByPointer(v, "/foo/0"));
}
TEST(Pointer, GetValueByPointerWithDefault) {
TEST(Pointer, GetValueByPointerWithDefault_Pointer) {
Document d;
d.Parse(kJson);
Document::AllocatorType& a = d.GetAllocator();
const Value v("qux");
EXPECT_TRUE(Value("bar") == GetValueByPointerWithDefault(d, Pointer("/foo/0"), v, a));
EXPECT_TRUE(Value("bar") == GetValueByPointerWithDefault(d, Pointer("/foo/0"), v, a));
EXPECT_TRUE(Value("baz") == GetValueByPointerWithDefault(d, Pointer("/foo/1"), v, a));
EXPECT_TRUE(Value("qux") == GetValueByPointerWithDefault(d, Pointer("/foo/2"), v, a));
EXPECT_TRUE(Value("last") == GetValueByPointerWithDefault(d, Pointer("/foo/-"), Value("last").Move(), a));
EXPECT_STREQ("last", d["foo"][3].GetString());
EXPECT_TRUE(GetValueByPointerWithDefault(d, Pointer("/foo/null"), Value().Move(), a).IsNull());
EXPECT_TRUE(GetValueByPointerWithDefault(d, Pointer("/foo/null"), "x", a).IsNull());
// Generic version
EXPECT_EQ(-1, GetValueByPointerWithDefault(d, Pointer("/foo/int"), -1, a).GetInt());
EXPECT_EQ(-1, GetValueByPointerWithDefault(d, Pointer("/foo/int"), -2, a).GetInt());
EXPECT_EQ(0x87654321, GetValueByPointerWithDefault(d, Pointer("/foo/uint"), 0x87654321, a).GetUint());
EXPECT_EQ(0x87654321, GetValueByPointerWithDefault(d, Pointer("/foo/uint"), 0x12345678, a).GetUint());
const int64_t i64 = static_cast<int64_t>(RAPIDJSON_UINT64_C2(0x80000000, 0));
EXPECT_EQ(i64, GetValueByPointerWithDefault(d, Pointer("/foo/int64"), i64, a).GetInt64());
EXPECT_EQ(i64, GetValueByPointerWithDefault(d, Pointer("/foo/int64"), i64 + 1, a).GetInt64());
const uint64_t u64 = RAPIDJSON_UINT64_C2(0xFFFFFFFFF, 0xFFFFFFFFF);
EXPECT_EQ(u64, GetValueByPointerWithDefault(d, Pointer("/foo/uint64"), u64, a).GetUint64());
EXPECT_EQ(u64, GetValueByPointerWithDefault(d, Pointer("/foo/uint64"), u64 - 1, a).GetUint64());
EXPECT_TRUE(GetValueByPointerWithDefault(d, Pointer("/foo/true"), true, a).IsTrue());
EXPECT_TRUE(GetValueByPointerWithDefault(d, Pointer("/foo/true"), false, a).IsTrue());
EXPECT_TRUE(GetValueByPointerWithDefault(d, Pointer("/foo/false"), false, a).IsFalse());
EXPECT_TRUE(GetValueByPointerWithDefault(d, Pointer("/foo/false"), true, a).IsFalse());
// StringRef version
EXPECT_STREQ("Hello", GetValueByPointerWithDefault(d, Pointer("/foo/hello"), "Hello", a).GetString());
// Copy string version
{
char buffer[256];
strcpy(buffer, "World");
EXPECT_STREQ("World", GetValueByPointerWithDefault(d, Pointer("/foo/world"), buffer, a).GetString());
memset(buffer, 0, sizeof(buffer));
}
EXPECT_STREQ("World", GetValueByPointer(d, Pointer("/foo/world"))->GetString());
}
TEST(Pointer, GetValueByPointerWithDefault_String) {
Document d;
d.Parse(kJson);
Document::AllocatorType& a = d.GetAllocator();
const Value v("qux");
EXPECT_TRUE(Value("bar") == GetValueByPointerWithDefault(d, "/foo/0", v, a));
EXPECT_TRUE(Value("bar") == GetValueByPointerWithDefault(d, "/foo/0", v, a));
EXPECT_TRUE(Value("baz") == GetValueByPointerWithDefault(d, "/foo/1", v, a));
EXPECT_TRUE(Value("qux") == GetValueByPointerWithDefault(d, "/foo/2", v, a));
EXPECT_TRUE(Value("last") == GetValueByPointerWithDefault(d, "/foo/-", Value("last").Move(), a));
EXPECT_STREQ("last", d["foo"][3].GetString());
EXPECT_TRUE(GetValueByPointerWithDefault(d, "/foo/null", Value().Move(), a).IsNull());
EXPECT_TRUE(GetValueByPointerWithDefault(d, "/foo/null", "x", a).IsNull());
// Generic version
EXPECT_EQ(-1, GetValueByPointerWithDefault(d, "/foo/int", -1, a).GetInt());
EXPECT_EQ(-1, GetValueByPointerWithDefault(d, "/foo/int", -2, a).GetInt());
EXPECT_EQ(0x87654321, GetValueByPointerWithDefault(d, "/foo/uint", 0x87654321, a).GetUint());
EXPECT_EQ(0x87654321, GetValueByPointerWithDefault(d, "/foo/uint", 0x12345678, a).GetUint());
const int64_t i64 = static_cast<int64_t>(RAPIDJSON_UINT64_C2(0x80000000, 0));
EXPECT_EQ(i64, GetValueByPointerWithDefault(d, "/foo/int64", i64, a).GetInt64());
EXPECT_EQ(i64, GetValueByPointerWithDefault(d, "/foo/int64", i64 + 1, a).GetInt64());
const uint64_t u64 = RAPIDJSON_UINT64_C2(0xFFFFFFFFF, 0xFFFFFFFFF);
EXPECT_EQ(u64, GetValueByPointerWithDefault(d, "/foo/uint64", u64, a).GetUint64());
EXPECT_EQ(u64, GetValueByPointerWithDefault(d, "/foo/uint64", u64 - 1, a).GetUint64());
EXPECT_TRUE(GetValueByPointerWithDefault(d, "/foo/true", true, a).IsTrue());
EXPECT_TRUE(GetValueByPointerWithDefault(d, "/foo/true", false, a).IsTrue());
EXPECT_TRUE(GetValueByPointerWithDefault(d, "/foo/false", false, a).IsFalse());
EXPECT_TRUE(GetValueByPointerWithDefault(d, "/foo/false", true, a).IsFalse());
// StringRef version
EXPECT_STREQ("Hello", GetValueByPointerWithDefault(d, "/foo/hello", "Hello", a).GetString());
// Copy string version
{
char buffer[256];
strcpy(buffer, "World");
EXPECT_STREQ("World", GetValueByPointerWithDefault(d, "/foo/world", buffer, a).GetString());
memset(buffer, 0, sizeof(buffer));
}
EXPECT_STREQ("World", GetValueByPointer(d, "/foo/world")->GetString());
}
TEST(Pointer, SetValueByPointer_Pointer) {