BigfootDev/flatbuffers
1
0
Fork 1
mirror of https://github.com/google/flatbuffers.git synced 2026-06-03 12:21:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

A feature that officially supports nested FlatBuffers.

Browse Source 
Generates convenient accessors for the nested root.

Change-Id: Ic0b1531de7ace475ff2a7b1f430d27f41c838430
Tested: on Windows.
This commit is contained in:
Wouter van Oortmerssen
2014-07-15 17:50:22 -07:00
parent 9143a93312
commit 3e201a99b2
8 changed files with 63 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/idl_gen_cpp.cpp
View File

@@ -164,7 +164,8 @@ static void GenComment(const std::string &dc,
}
// Generate an accessor struct, builder structs & function for a table.
static void GenTable(StructDef &struct_def, std::string *code_ptr) {
static void GenTable(const Parser &parser, StructDef &struct_def,
std::string *code_ptr) {
if (struct_def.generated) return;
std::string &code = *code_ptr;
@@ -191,6 +192,14 @@ static void GenTable(StructDef &struct_def, std::string *code_ptr) {
if (IsScalar(field.value.type.base_type))
code += ", " + field.value.constant;
code += "); }\n";
auto nested = field.attributes.Lookup("nested_flatbuffer");
if (nested) {
auto nested_root = parser.structs_.Lookup(nested->constant);
assert(nested_root); // Guaranteed to exist by parser.
code += " const " + nested_root->name + " *" + field.name;
code += "_nested_root() { return flatbuffers::GetRoot<";
code += nested_root->name + ">(" + field.name + "()->Data()); }\n";
}
}
}
// Generate a verifier function that can check a buffer from an untrusted
@@ -418,7 +427,7 @@ std::string GenerateCPP(const Parser &parser, const std::string &include_guard_i
}
for (auto it = parser.structs_.vec.begin();
it != parser.structs_.vec.end(); ++it) {
if (!(**it).fixed) GenTable(**it, &decl_code);
if (!(**it).fixed) GenTable(parser, **it, &decl_code);
}
// Only output file-level code if there were any declarations.