ci: fix warning about deprecated node.js (#2744)

* ci: update to checkout v6

v4 and older causes warnings about deprecated node.js

* ci: update to actions cache v5

the older versions cause deprecation warings for node.js 20

.github/workflows/aarch64.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/alpine.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/debian.yaml

@@ -16,7 +16,7 @@ jobs:
       image: debian:testing
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Install dependencies
       run: |

.github/workflows/documentation.yml

@@ -24,7 +24,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Doxygen
         run: sudo apt-get install doxygen graphviz -y
       - run: mkdir docs

.github/workflows/emscripten.yml

@@ -4,14 +4,14 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
       - uses: mymindstorm/setup-emsdk@6ab9eb1bda2574c4ddb79809fc9247783eaf9021 # v14
       - name: Verify
         run: emcc -v
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v3.6.0
+        uses: actions/checkout@v6
       - name: Configure
         run: emcmake cmake -B build
       - name: Build # We build but do not test
-        run: cmake --build build
+        run: cmake --build build

.github/workflows/fix-trailing-whitespace.yml

@@ -6,7 +6,7 @@ jobs:
   whitespace:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Remove whitespace and check the diff
         run: |
           set -eu

.github/workflows/fuzzers.yml

@@ -38,14 +38,14 @@ jobs:
         chmod +x llvm.sh
         sudo ./llvm.sh $CLANGVERSION
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       with:
         path: dependencies/.cache
         key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
 
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       id: cache-corpus
       with:
         path: out/

.github/workflows/loongarch64.yml

@@ -11,13 +11,13 @@ jobs:
         platform:
           - { toolchain-version: 2023.08.08 }
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install build requirements
         run: |
           sudo apt-get update -y
           sudo apt-get install -y --no-install-recommends cmake
 
-      - uses: actions/cache/restore@v4
+      - uses: actions/cache/restore@v5
         id: restore-cache
         with:
           path: /opt/cross-tools
@@ -33,7 +33,7 @@ jobs:
           mkdir -p /opt
           tar -C /opt -x -f /tmp/toolchain.tar.xz
 
-      - uses: actions/cache/save@v3
+      - uses: actions/cache/save@v5
         if: ${{ !steps.restore-cache.outputs.cache-hit }}
         with:
           path: /opt/cross-tools

.github/workflows/macos.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/msys2-clang.yml

@@ -27,8 +27,8 @@ jobs:
       CMAKE_GENERATOR: Ninja
 
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/msys2.yml

@@ -29,8 +29,8 @@ jobs:
       CMAKE_GENERATOR: Ninja
 
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ppc64.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/riscv64.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/rvv-1024-clang-18.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-128-clang-17.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-128-clang-20.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-256-gcc-14.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/rvv-512-clang-19.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Install packages
       run: |
         sudo apt-get update -q -y

.github/workflows/s390x.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: uraimo/run-on-arch-action@v3
         name: Test
         id: runcmd

.github/workflows/ubuntu22-clang13.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -20,4 +20,4 @@ jobs:
           cd build &&
           CXX=clang++-13 cmake -DSIMDJSON_DEVELOPER_MODE=ON ..  &&
           cmake --build .   &&
-          ctest --output-on-failure -LE explicitonly -j
+          ctest --output-on-failure -LE explicitonly -j

.github/workflows/ubuntu22-clang14.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-cxx20.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu22-gcc12.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -20,4 +20,4 @@ jobs:
           cd build &&
           CXX=g++-12 cmake -DSIMDJSON_DEVELOPER_MODE=ON ..  &&
           cmake --build .   &&
-          ctest --output-on-failure -LE explicitonly -j
+          ctest --output-on-failure -LE explicitonly -j

.github/workflows/ubuntu22-glibcxxassertions.yml

@@ -8,8 +8,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -21,4 +21,4 @@ jobs:
           cd build &&
           CXX=g++-12 cmake -DCMAKE_BUILD_TYPE=Debug  -DSIMDJSON_GLIBCXX_ASSERTIONS=ON -DSIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_DEVELOPER_MODE=ON ..  &&
           cmake --build .   &&
-          ctest . -E avoid_
+          ctest . -E avoid_

.github/workflows/ubuntu22-threadsani.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -21,4 +21,4 @@ jobs:
           CXX=g++-12 cmake  -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_SANITIZE_THREADS=ON ..  &&
           cmake --build . --target document_stream_tests  --target ondemand_document_stream_tests --target parse_many_test  &&
           ctest --output-on-failure  -R parse_many_test  &&
-          ctest --output-on-failure  -R document_stream_tests
+          ctest --output-on-failure  -R document_stream_tests

.github/workflows/ubuntu22.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-checkperf.yml

@@ -15,8 +15,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-clang20.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-cxx20-noexcept.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         cxx: [g++-13, clang++-16]
     steps:
-      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - uses: actions/checkout@v6
       - name: Prepare
         run: cmake -DSIMDJSON_CXX_STANDARD=20 -DSIMDJSON_EXCEPTIONS=OFF -DSIMDJSON_DEVELOPER_MODE=ON  -B build
         env:
@@ -19,4 +19,4 @@ jobs:
       - name: Build
         run: cmake --build build -j=2
       - name: Test
-        run: ctest --output-on-failure --test-dir build
+        run: ctest --output-on-failure --test-dir build

.github/workflows/ubuntu24-cxx20.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         cxx: [g++-13, clang++-16]
     steps:
-      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - uses: actions/checkout@v6
       - name: Prepare
         run: cmake -DSIMDJSON_CXX_STANDARD=20 -DSIMDJSON_DEVELOPER_MODE=ON  -B build
         env:
@@ -19,4 +19,4 @@ jobs:
       - name: Build
         run: cmake --build build -j=2
       - name: Test
-        run: ctest --output-on-failure --test-dir build
+        run: ctest --output-on-failure --test-dir build

.github/workflows/ubuntu24-noexcept.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-nothread.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24-sani.yml

@@ -9,8 +9,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}
@@ -34,8 +34,8 @@ jobs:
       ! contains(toJSON(github.event.commits.*.message), '[skip github]')
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: actions/checkout@v6
+      - uses: actions/cache@v5
         with:
           path: dependencies/.cache
           key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

.github/workflows/ubuntu24.yml

@@ -15,7 +15,7 @@ jobs:
         nan_inf: [ON, OFF]
         build_type: [RelWithDebInfo, Debug, Release]
     steps:
-      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - uses: actions/checkout@v6
       - name: Prepare
         run: cmake -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_SANITIZE=${{matrix.sanitizer}} -DBUILD_SHARED_LIBS=${{matrix.shared}} -DSIMDJSON_ENABLE_NAN_INF=${{matrix.nan_inf}} -B build
         env:

.github/workflows/vs17-arm-ci.yml

@@ -14,7 +14,7 @@ jobs:
            - {arch: ARM64EC}
      steps:
        - name: checkout
-         uses: actions/checkout@v4
+         uses: actions/checkout@v6
        - name: Use cmake
          run: |
            cmake -A ${{ matrix.arch }} -DCMAKE_SYSTEM_VERSION="10.0.22621.0" -DCMAKE_CROSSCOMPILING=1 -DSIMDJSON_DEVELOPER_MODE=ON -D SIMDJSON_GOOGLE_BENCHMARKS=OFF -DSIMDJSON_EXCEPTIONS=OFF -B build  &&

.github/workflows/vs17-ci-cxx20.yml

@@ -19,7 +19,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, shared: OFF}
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Configure
       run: |
         cmake -DSIMDJSON_CXX_STANDARD=20 -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -B build
@@ -41,4 +41,4 @@ jobs:
     - name: Test Installation
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -B build_install_test tests/installation_tests/find
-        cmake --build build_install_test --config Release
+        cmake --build build_install_test --config Release

.github/workflows/vs17-ci-sani.yml

@@ -18,7 +18,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: RelWithDebInfo}
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSANITIZE=ON -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -B build
@@ -27,4 +27,4 @@ jobs:
     - name: Run tests
       run: |
         cd build
-        ctest -C ${{matrix.build_type}}  -LE explicitonly  --output-on-failure
+        ctest -C ${{matrix.build_type}}  -LE explicitonly  --output-on-failure

.github/workflows/vs17-ci.yml

@@ -23,7 +23,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, shared: OFF, build_type: Release, memory_map: ON, nan_inf: ON}
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}} -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -DBUILD_SHARED_LIBS=${{matrix.shared}} -DSIMDJSON_ENABLE_MEMORY_FILE_MAPPING_ON_WINDOWS=${{matrix.memory_map}} -DSIMDJSON_ENABLE_NAN_INF=${{matrix.nan_inf}} -B build

.github/workflows/vs17-clang-ci-cxx20.yml

@@ -18,7 +18,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, build_type: RelWithDebInfo}
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -T ClangCL -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -B build
@@ -34,4 +34,4 @@ jobs:
     - name: Test Installation
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -B build_install_test tests/installation_tests/find
-        cmake --build build_install_test --config ${{matrix.build_type}}
+        cmake --build build_install_test --config ${{matrix.build_type}}

.github/workflows/vs17-clang-ci.yml

@@ -18,7 +18,7 @@ jobs:
           - {gen: Visual Studio 17 2022, arch: x64, build_type: RelWithDebInfo}
     steps:
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Configure
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -T ClangCL -DSIMDJSON_DEVELOPER_MODE=ON -DSIMDJSON_COMPETITION=OFF -B build
@@ -34,4 +34,4 @@ jobs:
     - name: Test Installation
       run: |
         cmake -G "${{matrix.gen}}" -A ${{matrix.arch}}  -B build_install_test tests/installation_tests/find
-        cmake --build build_install_test --config ${{matrix.build_type}}
+        cmake --build build_install_test --config ${{matrix.build_type}}

.github/workflows/vs17-noexcept-ci.yml

@@ -7,8 +7,8 @@ jobs:
     name: windows-vs17
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/cache@v4
+    - uses: actions/checkout@v6
+    - uses: actions/cache@v5
       with:
         path: dependencies/.cache
         key: ${{ hashFiles('dependencies/CMakeLists.txt') }}

benchmark/partial_tweets/yyjson.h

@@ -61,22 +61,29 @@ struct yyjson_base {
 };
 
 struct yyjson : yyjson_base {
+  // The document owns the string memory that result's string_views point into,
+  // so it must outlive each run() (the verification diff happens after run()
+  // returns). Free it on the next run() / at destruction, not before the views
+  // are read.
+  yyjson_doc *doc{};
+  ~yyjson() { if (doc != nullptr) { yyjson_doc_free(doc); } }
   bool run(simdjson::padded_string &json, std::vector<tweet<std::string_view>> &result) {
-    yyjson_doc *doc = yyjson_read(json.data(), json.size(), 0);
-    bool b = yyjson_base::run(doc, result);
-    yyjson_doc_free(doc);
-    return b;
+    if (doc != nullptr) { yyjson_doc_free(doc); doc = nullptr; }
+    doc = yyjson_read(json.data(), json.size(), 0);
+    return yyjson_base::run(doc, result);
   }
 };
 BENCHMARK_TEMPLATE(partial_tweets, yyjson)->UseManualTime();
 
 #if SIMDJSON_COMPETITION_ONDEMAND_INSITU
 struct yyjson_insitu : yyjson_base {
+  // See the note on yyjson above: the document must outlive result's views.
+  yyjson_doc *doc{};
+  ~yyjson_insitu() { if (doc != nullptr) { yyjson_doc_free(doc); } }
   bool run(simdjson::padded_string &json, std::vector<tweet<std::string_view>> &result) {
-    yyjson_doc *doc = yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0);
-    bool b = yyjson_base::run(doc, result);
-    yyjson_doc_free(doc);
-    return b;
+    if (doc != nullptr) { yyjson_doc_free(doc); doc = nullptr; }
+    doc = yyjson_read_opts(json.data(), json.size(), YYJSON_READ_INSITU, 0, 0);
+    return yyjson_base::run(doc, result);
   }
 };
 BENCHMARK_TEMPLATE(partial_tweets, yyjson_insitu)->UseManualTime();