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Adding accessors for IsBlob and Blob.data (#4398)

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This commit is contained in:
Manuel Kroiss
2017-07-27 17:06:02 +01:00
committed by Wouter van Oortmerssen
parent 265e43faf0
commit 360c34467c
2 changed files with 14 additions and 3 deletions
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6
include/flatbuffers/flexbuffers.h
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@@ -230,14 +230,15 @@ class String : public Sized {
class Blob : public Sized {
public:
Blob(const uint8_t *data, uint8_t byte_width)
: Sized(data, byte_width) {}
Blob(const uint8_t *data_buf, uint8_t byte_width)
: Sized(data_buf, byte_width) {}
static Blob EmptyBlob() {
static const uint8_t empty_blob[] = { 0/*len*/ };
return Blob(empty_blob + 1, 1);
}
bool IsTheEmptyBlob() const { return data_ == EmptyBlob().data_; }
const uint8_t *data() const { return data_; }
};
class Vector : public Sized {
@@ -360,6 +361,7 @@ class Reference {
bool IsKey() const { return type_ == TYPE_KEY; }
bool IsVector() const { return type_ == TYPE_VECTOR || type_ == TYPE_MAP; }
bool IsMap() const { return type_ == TYPE_MAP; }
bool IsBlob() const { return type_ == TYPE_BLOB; }
// Reads any type as a int64_t. Never fails, does most sensible conversion.
// Truncates floats, strings are attempted to be parsed for a number,

11
tests/test.cpp
View File

@@ -1599,6 +1599,8 @@ void FlexBuffersTest() {
slb += -100; // Equivalent to slb.Add(-100) or slb.Int(-100);
slb += "Fred";
slb.IndirectFloat(4.0f);
uint8_t blob[] = { 77 };
slb.Blob(blob, 1);
});
int ints[] = { 1, 2, 3 };
slb.Vector("bar", ints, 3);
@@ -1616,6 +1618,8 @@ void FlexBuffersTest() {
slb3 += -100; // Equivalent to slb.Add(-100) or slb.Int(-100);
slb3 += "Fred";
slb3.IndirectFloat(4.0f);
uint8_t blob[] = { 77 };
slb3.Blob(blob, 1);
}, slb2);
int ints[] = { 1, 2, 3 };
slb2.Vector("bar", ints, 3);
@@ -1635,7 +1639,7 @@ void FlexBuffersTest() {
auto map = flexbuffers::GetRoot(slb.GetBuffer()).AsMap();
TEST_EQ(map.size(), 5);
auto vec = map["vec"].AsVector();
TEST_EQ(vec.size(), 3);
TEST_EQ(vec.size(), 4);
TEST_EQ(vec[0].AsInt64(), -100);
TEST_EQ_STR(vec[1].AsString().c_str(), "Fred");
TEST_EQ(vec[1].AsInt64(), 0); // Number parsing failed.
@@ -1643,6 +1647,11 @@ void FlexBuffersTest() {
TEST_EQ(vec[2].AsString().IsTheEmptyString(), true); // Wrong Type.
TEST_EQ_STR(vec[2].AsString().c_str(), ""); // This still works though.
TEST_EQ_STR(vec[2].ToString().c_str(), "4.0"); // Or have it converted.
// Test that the blob can be accessed.
TEST_EQ(vec[3].IsBlob(), true);
auto blob = vec[3].AsBlob();
TEST_EQ(blob.size(), 1);
TEST_EQ(blob.data()[0], 77);
auto tvec = map["bar"].AsTypedVector();
TEST_EQ(tvec.size(), 3);
TEST_EQ(tvec[2].AsInt8(), 3);