concrete Graph and node Id types

* the code now uses node `Id`s wherever possible instead of pointers
* `Graph` is fully concrete
* the readers hold a `Graph` reference and return a root node `Id`
* multiple ABI graphs are loaded into a single `Graph`

PiperOrigin-RevId: 437251702
Change-Id: I8111f16050c57728e392792a774eeb63edf3f0f0

2 files changed, 5 insertions, 2 deletions

diff --git a/fuzz/abigail_reader_fuzzer.cc b/fuzz/abigail_reader_fuzzer.cc
index cbf6b79..91fe86a 100644
--- a/fuzz/abigail_reader_fuzzer.cc
+++ b/fuzz/abigail_reader_fuzzer.cc
@@ -42,7 +42,8 @@ extern "C" int LLVMFuzzerTestOneInput(char* data, size_t size) {
   xmlNodePtr root = xmlDocGetRootElement(doc);
   if (root) {
     try {
-      stg::abixml::Abigail _(root);
+      stg::Graph graph;
+      stg::abixml::Abigail(graph).ProcessRoot(root);
     } catch (const stg::Exception&) {
       // Pass as this is us catching invalid XML properly.
     }
diff --git a/fuzz/btf_reader_fuzzer.cc b/fuzz/btf_reader_fuzzer.cc
index 0cd9548..4a60985 100644
--- a/fuzz/btf_reader_fuzzer.cc
+++ b/fuzz/btf_reader_fuzzer.cc
@@ -32,7 +32,9 @@ extern "C" int LLVMFuzzerTestOneInput(char* data, size_t size) {
   auto symtab = abigail::symtab_reader::symtab::load(symmap, symmap);
 
   try {
-    stg::btf::Structs(data, size, std::move(env), std::move(symtab));
+    stg::Graph graph;
+    stg::btf::Structs(
+        graph, std::move(env), std::move(symtab)).Process(data, size);
   } catch (const stg::Exception&) {
     // Pass as this is us catching invalid BTF properly.
   }