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refactor: extract wsdb into native-packages, decoupled from barretenberg
Moves the world-state DB server (+ persistent merkle), the lmdb C++ wrapper (lmdblib), and the kv-store NAPI (kvdb) out of barretenberg into native-packages siblings, leaving barretenberg free of DB code — and in the same step decouples wsdb from barretenberg's C++ headers. The extraction splits barretenberg's merkle_tree headers: barretenberg keeps only the response/types the AVM's LowLevelMerkleDBInterface returns and its hints serialize, while the full async tree engine (content-addressed trees + world_state) and its response/tree_meta/types move into wsdb. wsdb then compiles with zero barretenberg headers — its own FieldElement (32-byte canonical) + a poseidon2 c_bind are the only barretenberg link. Forks the bb-free common utils, moves merkle_tree Signal into wsdb, keeps lmdb keys backward-compatible (little-endian uint256), switches lmdblib to upstream msgpack + FetchContent (bb-free), and wires the lmdblib/wsdb C++ tests into the CI test engine. The standalone aztec-wsdb binary and the kvdb .node build against prebuilt barretenberg; lmdblib/kvdb are fully barretenberg-free.
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Lines changed: 5893 additions & 1836 deletions

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‎Makefile‎

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@@ -47,15 +47,15 @@ endef
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# PHONY TARGETS - List every target that has a file/dir of the same name.
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#==============================================================================
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50-
.PHONY: noir barretenberg noir-projects l1-contracts release-image boxes playground docs aztec-up spartan wsdb bb-avm-sim
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.PHONY: noir barretenberg noir-projects l1-contracts release-image boxes playground docs aztec-up spartan lmdblib kvdb wsdb bb-avm-sim
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#==============================================================================
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# BOOTSTRAP TARGETS
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#==============================================================================
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# Fast bootstrap.
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fast: release-image barretenberg boxes playground docs aztec-up \
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bb-tests l1-contracts-tests yarn-project-tests boxes-tests playground-tests aztec-up-tests docs-tests noir-protocol-circuits-tests release-image-tests spartan claude-tests ipc-codegen-tests
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bb-tests l1-contracts-tests yarn-project-tests boxes-tests playground-tests aztec-up-tests docs-tests noir-protocol-circuits-tests release-image-tests spartan claude-tests ipc-codegen-tests lmdblib-tests wsdb-tests
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# Full bootstrap.
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full: fast bb-full-tests bb-cpp-full yarn-project-benches
@@ -321,11 +321,29 @@ ipc-runtime-cross-arm64-macos:
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ipc-runtime-cross: ipc-runtime ipc-runtime-cross-arm64-linux ipc-runtime-cross-amd64-macos ipc-runtime-cross-arm64-macos
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#==============================================================================
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# WSDB
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# Native packages (lmdblib, kvdb, wsdb)
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#==============================================================================
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wsdb: ipc-codegen ipc-runtime bb-cpp-native
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$(call build,$@,wsdb)
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# lmdblib and kvdb are barretenberg-free: they build against their own deps
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# (lmdb, msgpack-c, node-addon-api) only, never bb.
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.PHONY: lmdblib kvdb lmdblib-tests wsdb-tests
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lmdblib:
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$(call build,$@,native-packages/lmdblib)
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kvdb: lmdblib
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$(call build,$@,native-packages/kvdb)
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wsdb: ipc-codegen ipc-runtime bb-cpp-native lmdblib
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$(call build,$@,native-packages/wsdb)
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# Native-package C++ tests (self-contained gtest binaries). kvdb has no C++ tests
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# (its NAPI is exercised by yarn-project's kv-store tests). wsdb_tests use no bb
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# headers; the bb-header parity/equivalence target is manual (WSDB_BUILD_BB_TESTS).
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lmdblib-tests: lmdblib
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$(call test,$@,native-packages/lmdblib)
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wsdb-tests: wsdb
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$(call test,$@,native-packages/wsdb)
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#==============================================================================
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# .claude tooling
@@ -402,7 +420,7 @@ l1-contracts-tests: l1-contracts-verifier
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# Yarn Project - TypeScript monorepo with all TS packages
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#==============================================================================
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yarn-project: bb-ts noir-projects l1-contracts wsdb bb-avm-sim
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yarn-project: bb-ts noir-projects l1-contracts wsdb kvdb bb-avm-sim
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$(call build,$@,yarn-project)
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yarn-project-tests: yarn-project

‎aztec-up/bootstrap.sh‎

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@@ -1,16 +1,23 @@
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#!/usr/bin/env bash
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source $(git rev-parse --show-toplevel)/ci3/source_bootstrap
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4-
hash=$(hash_str $(cache_content_hash ^aztec-up/) $(../ipc-runtime/bootstrap.sh hash) $(../wsdb/bootstrap.sh hash) $(../barretenberg/ts/bootstrap.sh hash) $(../yarn-project/bootstrap.sh hash))
4+
hash=$(hash_str $(cache_content_hash ^aztec-up/) $(../ipc-runtime/bootstrap.sh hash) $(../native-packages/kvdb/bootstrap.sh hash) $(../native-packages/wsdb/bootstrap.sh hash) $(../barretenberg/ts/bootstrap.sh hash) $(../yarn-project/bootstrap.sh hash))
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# Bare aliases ("nightly", "latest") resolve to this major version.
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DEFAULT_MAJOR_VERSION=${AZTEC_TOOLCHAIN_DEFAULT_MAJOR_VERSION:-4}
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function wsdb_package_dirs {
10-
for package_dir in "$root"/wsdb/ts/packages/*; do
10+
for package_dir in "$root"/native-packages/wsdb/ts/packages/*; do
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[ -d "$package_dir" ] && echo "$package_dir"
1212
done
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echo "$root/wsdb/ts"
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echo "$root/native-packages/wsdb/ts"
14+
}
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16+
function kvdb_package_dirs {
17+
for package_dir in "$root"/native-packages/kvdb/ts/packages/*; do
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[ -d "$package_dir" ] && echo "$package_dir"
19+
done
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echo "$root/native-packages/kvdb/ts"
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}
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function barretenberg_ts_package_dirs {
@@ -117,6 +124,7 @@ EOF
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echo $root/ipc-runtime/ts
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barretenberg_ts_package_dirs
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wsdb_package_dirs
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kvdb_package_dirs
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# l1-artifacts lives under l1-contracts, so it isn't enumerated by yarn-project's get_projects;
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# publish it explicitly or @aztec/aztec's portal dependency can't resolve from the local registry.
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echo $root/l1-contracts/l1-artifacts

‎barretenberg/cpp/CMakeLists.txt‎

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@@ -12,7 +12,7 @@ project(
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# === Platform Guard Reference ===
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# __wasm__ : Compiler-defined for WebAssembly. Guards threading, file I/O, networking.
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# _WIN32 : Compiler-defined for Windows. Guards POSIX APIs (mmap, signals, IPC).
15-
# BB_LITE : CMake option. Excludes server-side subsystems (lmdb, world_state, ipc, nodejs_module).
15+
# BB_LITE : CMake option. Excludes server-side subsystems (ipc, vm2_wsdb, cdb, avm).
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# Enabled for: iOS, Android, Windows cross-compiles.
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# WASM : CMake variable mirroring __wasm__ for CMake-level logic.
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@@ -45,7 +45,7 @@ option(ENABLE_PIC "Builds with position independent code" OFF)
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option(SYNTAX_ONLY "only check syntax (-fsyntax-only)" OFF)
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option(ENABLE_WASM_BENCH "Enable BB_BENCH benchmarking support in WASM builds (dev only, not for releases)" OFF)
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option(AVM "enable building of vm2 module and bb-avm" ON)
48-
option(BB_LITE "Exclude server-side subsystems: lmdb, world_state, ipc, nodejs_module" OFF)
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option(BB_LITE "Exclude server-side subsystems: ipc, vm2_wsdb, cdb, avm" OFF)
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5050
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64" OR CMAKE_SYSTEM_PROCESSOR MATCHES "arm64")
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message(STATUS "Compiling for ARM.")

‎barretenberg/cpp/CMakePresets.json‎

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"name": "amd64-linux",
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"configurePreset": "amd64-linux",
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"inheritConfigureEnvironment": true,
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"targets": ["bb", "nodejs_module", "bb-external", "aztec-wsdb", "bb-avm-sim"]
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"targets": ["bb", "nodejs_module", "bb-external", "bb-avm-sim"]
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},
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{
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"name": "arm64-linux",
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"configurePreset": "arm64-linux",
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"inheritConfigureEnvironment": true,
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"targets": ["bb", "nodejs_module", "bb-external", "aztec-wsdb", "bb-avm-sim"]
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"targets": ["bb", "nodejs_module", "bb-external", "bb-avm-sim"]
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},
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{
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"name": "amd64-macos",
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"configurePreset": "amd64-macos",
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"inheritConfigureEnvironment": true,
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"targets": ["bb", "nodejs_module", "bb-external", "aztec-wsdb", "bb-avm-sim"]
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"targets": ["bb", "nodejs_module", "bb-external", "bb-avm-sim"]
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},
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{
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"name": "arm64-macos",
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"configurePreset": "arm64-macos",
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"inheritConfigureEnvironment": true,
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"targets": ["bb", "nodejs_module", "bb-external", "aztec-wsdb", "bb-avm-sim"]
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"targets": ["bb", "nodejs_module", "bb-external", "bb-avm-sim"]
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},
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{
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"name": "amd64-windows",

‎barretenberg/cpp/scripts/audit/audit_scopes/merkle_tree_audit_scope.md‎

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@@ -20,14 +20,14 @@ Note: Paths relative to `aztec-packages/barretenberg/cpp/src/barretenberg`
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### Node Store (Cache + Metadata)
2121
8. `crypto/merkle_tree/node_store/cached_content_addressed_tree_store.hpp`
2222
9. `crypto/merkle_tree/node_store/content_addressed_cache.hpp`
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10. `crypto/merkle_tree/node_store/tree_meta.hpp`
23+
10. `crypto/merkle_tree/tree_meta.hpp`
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2525
### Append-Only Tree
2626
11. `crypto/merkle_tree/append_only_tree/content_addressed_append_only_tree.hpp`
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2828
### Indexed Tree
2929
12. `crypto/merkle_tree/indexed_tree/content_addressed_indexed_tree.hpp`
30-
13. `crypto/merkle_tree/indexed_tree/indexed_leaf.hpp`
30+
13. `crypto/merkle_tree/indexed_leaf.hpp`
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## Summary of Module
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‎barretenberg/cpp/src/CMakeLists.txt‎

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@@ -115,22 +115,17 @@ add_subdirectory(barretenberg/ultra_honk)
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add_subdirectory(barretenberg/vm2_stub)
116116
add_subdirectory(barretenberg/wasi)
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118-
if(NOT BB_LITE)
119-
add_subdirectory(barretenberg/lmdblib)
120-
endif()
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122118
if(NOT FUZZING AND NOT WASM AND NOT BB_LITE)
123-
# Fuzzing preset cannot be built with world_state as world_state cannot compile with MULTITHREADING=OFF
124-
# Mobile builds exclude these modules that require LMDB or aren't needed on mobile
119+
# Mobile builds exclude these modules that aren't needed on mobile
125120
add_subdirectory(barretenberg/aztec)
126-
add_subdirectory(barretenberg/world_state)
127121
# NOTE: Do not conditionally base this on the AVM flag as it defines a necessary vm2_sim library.
128122
add_subdirectory(barretenberg/vm2)
129123
add_subdirectory(barretenberg/ipc)
130-
add_subdirectory(barretenberg/wsdb)
131124
add_subdirectory(barretenberg/vm2_wsdb)
132125
add_subdirectory(barretenberg/cdb)
133126
add_subdirectory(barretenberg/avm)
127+
# nodejs_module hosts only the msgpack_client NAPI wrappers now (bb.js's SHM
128+
# transport). The lmdb_store kv-store NAPI moved to native-packages/kvdb.
134129
add_subdirectory(barretenberg/nodejs_module)
135130
endif()
136131

@@ -146,7 +141,6 @@ if(FUZZING_AVM)
146141
if(FUZZING)
147142
# Only add these if they weren't added above (when NOT FUZZING AND NOT WASM)
148143
add_subdirectory(barretenberg/aztec)
149-
add_subdirectory(barretenberg/world_state)
150144
add_subdirectory(barretenberg/vm2)
151145
endif()
152146
add_subdirectory(barretenberg/avm_fuzzer)
@@ -215,11 +209,9 @@ set(BARRETENBERG_TARGET_OBJECTS
215209
set(BB_EXTERNAL_TARGET_OBJECTS ${BARRETENBERG_TARGET_OBJECTS})
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217211
if(NOT WASM AND NOT FUZZING AND NOT BB_LITE)
218-
# enable merkle trees and lmdb (not for mobile builds)
212+
# enable merkle trees (not for mobile builds)
219213
list(APPEND BARRETENBERG_TARGET_OBJECTS $<TARGET_OBJECTS:crypto_merkle_tree_objects>)
220-
list(APPEND BARRETENBERG_TARGET_OBJECTS $<TARGET_OBJECTS:lmdblib_objects>)
221214
list(APPEND BARRETENBERG_TARGET_OBJECTS $<TARGET_OBJECTS:api_objects>)
222-
list(APPEND BARRETENBERG_TARGET_OBJECTS $<TARGET_OBJECTS:world_state_objects>)
223215
endif()
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225217
add_library(

‎barretenberg/cpp/src/barretenberg/avm/CMakeLists.txt‎

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Original file line numberDiff line numberDiff line change
@@ -49,7 +49,6 @@ target_link_libraries(
4949
barretenberg
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vm2_sim
5151
wsdb_ipc_merkle_db
52-
wsdb_ipc_client
5352
cdb_ipc_client
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ipc_runtime
5554
env

‎barretenberg/cpp/src/barretenberg/avm/avm_execute.cpp‎

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1111
namespace bb::avm {
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1313
using namespace bb::avm2;
14-
using namespace bb::world_state;
14+
using bb::crypto::merkle_tree::WorldStateRevision;
1515

1616
// Cancellation for the single in-flight simulation. bb-avm-sim runs exactly one
1717
// simulation at a time; the SIGUSR1 handler (which may run on any thread) cancels

‎barretenberg/cpp/src/barretenberg/avm/avm_execute.hpp‎

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77
#include "barretenberg/avm/generated/avm_ipc_server.hpp"
88
#include "barretenberg/cdb/cdb_ipc_client.hpp"
99
#include "barretenberg/vm2/simulation/lib/cancellation_token.hpp"
10-
#include "barretenberg/wsdb/generated/wsdb_ipc_client.hpp"
10+
#include "barretenberg/vm2_wsdb/generated/wsdb_ipc_client.hpp"
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1212
#include <atomic>
1313

‎barretenberg/cpp/src/barretenberg/avm/avm_ipc_server.cpp‎

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#include "barretenberg/avm/avm_execute.hpp"
33
#include "barretenberg/cdb/cdb_ipc_client.hpp"
44
#include "barretenberg/common/log.hpp"
5-
#include "barretenberg/wsdb/generated/wsdb_ipc_client.hpp"
5+
#include "barretenberg/vm2_wsdb/generated/wsdb_ipc_client.hpp"
66
#include "ipc_runtime/ipc_server.hpp"
77
#include "ipc_runtime/serve_helper.hpp"
88
#include "ipc_runtime/signal_handlers.hpp"

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