Fix secret name, consolidate action and workflow

This change removes the `master` branch as a trigger for the CI pipelines, and updates comments accordingly. It also fixes the pre-commit workflow, so it will run on all release branches.

.github/actions/generate-version/action.yml

@@ -0,0 +1,32 @@
+name: Generate build version number
+description: "Generate build version number."
+
+outputs:
+  version:
+    description: "The generated build version number."
+    value: ${{ steps.version.outputs.version }}
+
+runs:
+  using: composite
+  steps:
+    - name: Generate version
+      id: version
+      shell: bash
+      env:
+        # Append a shortened commit hash for the develop branch. For releases
+        # the version is used as-is.
+        COMMIT_HASH: ${{ github.ref == 'refs/heads/develop' && github.sha || '' }}
+      run: |
+        echo 'Extracting version from BuildInfo.cpp.'
+        VERSION="$(cat src/libxrpl/protocol/BuildInfo.cpp | grep "versionString =" | awk -F '"' '{print $2}')"
+        if [[ -z "${VERSION}" ]]; then
+          echo 'Unable to extract version from BuildInfo.cpp.'
+          exit 1
+        fi
+
+        if [[ -n "${COMMIT_HASH}" ]]; then
+          echo 'Appending shortened commit hash to version.'
+          VERSION="${VERSION}-${COMMIT_HASH:0:7}"
+        fi
+
+        echo "version=${VERSION}" >> "${GITHUB_OUTPUT}"

.github/actions/setup-conan/action.yml

@@ -2,11 +2,11 @@ name: Setup Conan
 description: "Set up Conan configuration, profile, and remote."
 
 inputs:
-  conan_remote_name:
+  remote_name:
     description: "The name of the Conan remote to use."
     required: false
     default: xrplf
-  conan_remote_url:
+  remote_url:
     description: "The URL of the Conan endpoint to use."
     required: false
     default: https://conan.ripplex.io
@@ -36,11 +36,11 @@ runs:
     - name: Set up Conan remote
       shell: bash
       env:
-        CONAN_REMOTE_NAME: ${{ inputs.conan_remote_name }}
-        CONAN_REMOTE_URL: ${{ inputs.conan_remote_url }}
+        REMOTE_NAME: ${{ inputs.remote_name }}
+        REMOTE_URL: ${{ inputs.remote_url }}
       run: |
-        echo "Adding Conan remote '${CONAN_REMOTE_NAME}' at '${CONAN_REMOTE_URL}'."
-        conan remote add --index 0 --force "${CONAN_REMOTE_NAME}" "${CONAN_REMOTE_URL}"
+        echo "Adding Conan remote '${REMOTE_NAME}' at '${REMOTE_URL}'."
+        conan remote add --index 0 --force "${REMOTE_NAME}" "${REMOTE_URL}"
 
         echo 'Listing Conan remotes.'
         conan remote list

.github/scripts/strategy-matrix/generate.py

@@ -20,8 +20,8 @@ class Config:
 Generate a strategy matrix for GitHub Actions CI.
 
 On each PR commit we will build a selection of Debian, RHEL, Ubuntu, MacOS, and
-Windows configurations, while upon merge into the develop, release, or master
-branches, we will build all configurations, and test most of them.
+Windows configurations, while upon merge into the develop or release branches,
+we will build all configurations, and test most of them.
 
 We will further set additional CMake arguments as follows:
 - All builds will have the `tests`, `werr`, and `xrpld` options.

.github/workflows/on-pr.yml

@@ -53,7 +53,6 @@ jobs:
             .github/scripts/rename/**
             .github/workflows/reusable-check-levelization.yml
             .github/workflows/reusable-check-rename.yml
-            .github/workflows/reusable-notify-clio.yml
             .github/workflows/on-pr.yml
 
             # Keep the paths below in sync with those in `on-trigger.yml`.
@@ -66,6 +65,7 @@ jobs:
             .github/workflows/reusable-build-test.yml
             .github/workflows/reusable-strategy-matrix.yml
             .github/workflows/reusable-test.yml
+            .github/workflows/reusable-upload-recipe.yml
             .codecov.yml
             cmake/**
             conan/**
@@ -121,22 +121,43 @@ jobs:
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
-  notify-clio:
+  upload-recipe:
     needs:
       - should-run
       - build-test
-    if: ${{ needs.should-run.outputs.go == 'true' && (startsWith(github.base_ref, 'release') || github.base_ref == 'master') }}
-    uses: ./.github/workflows/reusable-notify-clio.yml
+    # Only run when committing to the release branch in the XRPLF repository. We
+    # also upload the recipe when merging into the develop branch, but that is
+    # handled in the on-trigger.yml workflow.
+    if: ${{ github.repository_owner == 'XRPLF' && needs.should-run.outputs.go == 'true' && startsWith(github.ref, 'refs/heads/release') }}
+    uses: ./.github/workflows/reusable-upload-recipe.yml
     secrets:
-      clio_notify_token: ${{ secrets.CLIO_NOTIFY_TOKEN }}
-      conan_remote_username: ${{ secrets.CONAN_REMOTE_USERNAME }}
-      conan_remote_password: ${{ secrets.CONAN_REMOTE_PASSWORD }}
+      remote_username: ${{ secrets.CONAN_REMOTE_USERNAME }}
+      remote_password: ${{ secrets.CONAN_REMOTE_PASSWORD }}
+
+  notify-clio:
+    needs: upload-recipe
+    runs-on: ubuntu-latest
+    steps:
+      # Notify the Clio repository about the newly proposed release version, so
+      # it can be checked for compatibility before the release is actually made.
+      - name: Notify Clio
+        env:
+          GH_TOKEN: ${{ secrets.CLIO_NOTIFY_TOKEN }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
+        run: |
+          gh api --method POST -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" \
+          /repos/xrplf/clio/dispatches -f "event_type=check_libxrpl" \
+          -F "client_payload[ref]=${{ needs.upload-recipe.outputs.recipe_ref }}" \
+          -F "client_payload[pr_url]=${PR_URL}"
 
   passed:
     if: failure() || cancelled()
     needs:
-      - build-test
       - check-levelization
+      - check-rename
+      - build-test
+      - upload-recipe
+      - notify-clio
     runs-on: ubuntu-latest
     steps:
       - name: Fail

.github/workflows/on-trigger.yml

@@ -1,9 +1,8 @@
-# This workflow runs all workflows to build the dependencies required for the
-# project on various Linux flavors, as well as on MacOS and Windows, on a
-# scheduled basis, on merge into the 'develop', 'release', or 'master' branches,
-# or manually. The missing commits check is only run when the code is merged
-# into the 'develop' or 'release' branches, and the documentation is built when
-# the code is merged into the 'develop' branch.
+# This workflow runs all workflows to build and test the code on various Linux
+# flavors, as well as on MacOS and Windows, on a scheduled basis, on merge into
+# the 'develop' or 'release*' branches, or when requested manually. Upon
+# successful completion, it also uploads the built libxrpl package to the Conan
+# remote.
 name: Trigger
 
 on:
@@ -11,7 +10,6 @@ on:
     branches:
       - "develop"
       - "release*"
-      - "master"
     paths:
       # These paths are unique to `on-trigger.yml`.
       - ".github/workflows/on-trigger.yml"
@@ -26,6 +24,7 @@ on:
       - ".github/workflows/reusable-build-test.yml"
       - ".github/workflows/reusable-strategy-matrix.yml"
       - ".github/workflows/reusable-test.yml"
+      - ".github/workflows/reusable-upload-recipe.yml"
       - ".codecov.yml"
       - "cmake/**"
       - "conan/**"
@@ -70,11 +69,22 @@ jobs:
     with:
       # Enable ccache only for events targeting the XRPLF repository, since
       # other accounts will not have access to our remote cache storage.
-      # However, we do not enable ccache for events targeting the master or a
-      # release branch, to protect against the rare case that the output
-      # produced by ccache is not identical to a regular compilation.
-      ccache_enabled: ${{ github.repository_owner == 'XRPLF' && !(github.base_ref == 'master' || startsWith(github.base_ref, 'release')) }}
+      # However, we do not enable ccache for events targeting a release branch,
+      # to protect against the rare case that the output produced by ccache is
+      # not identical to a regular compilation.
+      ccache_enabled: ${{ github.repository_owner == 'XRPLF' && !startsWith(github.ref, 'refs/heads/release') }}
       os: ${{ matrix.os }}
       strategy_matrix: ${{ github.event_name == 'schedule' && 'all' || 'minimal' }}
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+  upload-recipe:
+    needs: build-test
+    # Only run when pushing to the develop branch in the XRPLF repository. We
+    # also upload the recipe when committing to a release branch, but that is
+    # handled in the on-pr.yml workflow.
+    if: ${{ github.repository_owner == 'XRPLF' && github.event_name == 'push' && github.ref == 'refs/heads/develop' }}
+    uses: ./.github/workflows/reusable-upload-recipe.yml
+    secrets:
+      remote_username: ${{ secrets.CONAN_REMOTE_USERNAME }}
+      remote_password: ${{ secrets.CONAN_REMOTE_PASSWORD }}

.github/workflows/pre-commit.yml

@@ -3,7 +3,9 @@ name: Run pre-commit hooks
 on:
   pull_request:
   push:
-    branches: [develop, release, master]
+    branches:
+      - "develop"
+      - "release*"
   workflow_dispatch:
 
 jobs:

.github/workflows/reusable-notify-clio.yml

@@ -1,91 +0,0 @@
-# This workflow exports the built libxrpl package to the Conan remote on a
-# a channel named after the pull request, and notifies the Clio repository about
-# the new version so it can check for compatibility.
-name: Notify Clio
-
-# This workflow can only be triggered by other workflows.
-on:
-  workflow_call:
-    inputs:
-      conan_remote_name:
-        description: "The name of the Conan remote to use."
-        required: false
-        type: string
-        default: xrplf
-      conan_remote_url:
-        description: "The URL of the Conan endpoint to use."
-        required: false
-        type: string
-        default: https://conan.ripplex.io
-    secrets:
-      clio_notify_token:
-        description: "The GitHub token to notify Clio about new versions."
-        required: true
-      conan_remote_username:
-        description: "The username for logging into the Conan remote."
-        required: true
-      conan_remote_password:
-        description: "The password for logging into the Conan remote."
-        required: true
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}-clio
-  cancel-in-progress: true
-
-defaults:
-  run:
-    shell: bash
-
-jobs:
-  upload:
-    if: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
-    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/ci/ubuntu-noble:gcc-13-sha-5dd7158
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
-      - name: Generate outputs
-        id: generate
-        env:
-          PR_NUMBER: ${{ github.event.pull_request.number }}
-        run: |
-          echo 'Generating user and channel.'
-          echo "user=clio" >> "${GITHUB_OUTPUT}"
-          echo "channel=pr_${PR_NUMBER}" >> "${GITHUB_OUTPUT}"
-          echo 'Extracting version.'
-          echo "version=$(cat src/libxrpl/protocol/BuildInfo.cpp | grep "versionString =" | awk -F '"' '{print $2}')" >> "${GITHUB_OUTPUT}"
-      - name: Calculate conan reference
-        id: conan_ref
-        run: |
-          echo "conan_ref=${{ steps.generate.outputs.version }}@${{ steps.generate.outputs.user }}/${{ steps.generate.outputs.channel }}" >> "${GITHUB_OUTPUT}"
-      - name: Set up Conan
-        uses: ./.github/actions/setup-conan
-        with:
-          conan_remote_name: ${{ inputs.conan_remote_name }}
-          conan_remote_url: ${{ inputs.conan_remote_url }}
-      - name: Log into Conan remote
-        env:
-          CONAN_REMOTE_NAME: ${{ inputs.conan_remote_name }}
-        run: conan remote login "${CONAN_REMOTE_NAME}" "${{ secrets.conan_remote_username }}" --password "${{ secrets.conan_remote_password }}"
-      - name: Upload package
-        env:
-          CONAN_REMOTE_NAME: ${{ inputs.conan_remote_name }}
-        run: |
-          conan export --user=${{ steps.generate.outputs.user }} --channel=${{ steps.generate.outputs.channel }} .
-          conan upload --confirm --check --remote="${CONAN_REMOTE_NAME}" xrpl/${{ steps.conan_ref.outputs.conan_ref }}
-    outputs:
-      conan_ref: ${{ steps.conan_ref.outputs.conan_ref }}
-
-  notify:
-    needs: upload
-    runs-on: ubuntu-latest
-    steps:
-      - name: Notify Clio
-        env:
-          GH_TOKEN: ${{ secrets.clio_notify_token }}
-          PR_URL: ${{ github.event.pull_request.html_url }}
-        run: |
-          gh api --method POST -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" \
-          /repos/xrplf/clio/dispatches -f "event_type=check_libxrpl" \
-          -F "client_payload[conan_ref]=${{ needs.upload.outputs.conan_ref }}" \
-          -F "client_payload[pr_url]=${PR_URL}"

.github/workflows/reusable-upload-recipe.yml

@@ -0,0 +1,78 @@
+# This workflow exports the built libxrpl package to the Conan remote.
+name: Upload Conan recipe
+
+# This workflow can only be triggered by other workflows.
+on:
+  workflow_call:
+    inputs:
+      remote_name:
+        description: "The name of the Conan remote to use."
+        required: false
+        type: string
+        default: xrplf
+      remote_url:
+        description: "The URL of the Conan endpoint to use."
+        required: false
+        type: string
+        default: https://conan.ripplex.io
+
+    secrets:
+      remote_username:
+        description: "The username for logging into the Conan remote."
+        required: true
+      remote_password:
+        description: "The password for logging into the Conan remote."
+        required: true
+
+    outputs:
+      recipe_ref:
+        description: "The Conan recipe reference ('name/version') that was uploaded."
+        value: ${{ jobs.upload.outputs.ref }}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-upload-recipe
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  upload:
+    runs-on: ubuntu-latest
+    container: ghcr.io/xrplf/ci/ubuntu-noble:gcc-13-sha-5dd7158
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+
+      - name: Generate build version number
+        id: version
+        uses: ./.github/actions/generate-version
+
+      - name: Determine recipe reference
+        id: ref
+        run: echo "ref=xrpl/${{ steps.version.outputs.version }}" >> "${GITHUB_OUTPUT}"
+
+      - name: Set up Conan
+        uses: ./.github/actions/setup-conan
+        with:
+          remote_name: ${{ inputs.remote_name }}
+          remote_url: ${{ inputs.remote_url }}
+
+      - name: Log into Conan remote
+        env:
+          REMOTE_NAME: ${{ inputs.remote_name }}
+          REMOTE_USERNAME: ${{ inputs.remote_username }}
+          REMOTE_PASSWORD: ${{ inputs.remote_password }}
+        run: conan remote login "${REMOTE_NAME}" "${REMOTE_USERNAME}" --password "${REMOTE_PASSWORD}"
+
+      - name: Upload Conan recipe
+        env:
+          RECIPE_REF: ${{ steps.ref.outputs.ref }}
+          REMOTE_NAME: ${{ inputs.remote_name }}
+        run: |
+          conan export .
+          conan upload --confirm --check --remote="${REMOTE_NAME}" ${RECIPE_REF}
+
+    outputs:
+      ref: ${{ steps.ref.outputs.ref }}

.github/workflows/upload-conan-deps.yml

@@ -86,8 +86,8 @@ jobs:
       - name: Setup Conan
         uses: ./.github/actions/setup-conan
         with:
-          conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
-          conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+          remote_name: ${{ env.CONAN_REMOTE_NAME }}
+          remote_url: ${{ env.CONAN_REMOTE_URL }}
 
       - name: Build dependencies
         uses: ./.github/actions/build-deps

include/xrpl/basics/Number.h

@@ -109,10 +109,6 @@ template <class T>
 concept Integral64 =
     std::is_same_v<T, std::int64_t> || std::is_same_v<T, std::uint64_t>;
 
-template <class STAmount, class Asset>
-concept CanUseAsScale = requires(Asset a, Number n) { STAmount(a, n); } &&
-    requires(STAmount s) { s.exponent(); };
-
 /** Number is a floating point type that can represent a wide range of values.
  *
  * It can represent all values that can be represented by an STAmount -
@@ -272,26 +268,6 @@ public:
     constexpr int
     exponent() const noexcept;
 
-    /** Get the scale of this Number for the given asset.
-     *
-     * "scale" is similar to "exponent", but from the perspective of STAmount,
-     * which has different rules for determining the exponent than Number.
-     *
-     * Because Number does not have access to STAmount or Asset, this function
-     * is implemented as a template, with the expectation that it will only be
-     * used by those types. Any types that fit the requirements will work,
-     * though, if there's a need.
-     *
-     * @tparam STAmount The STAmount type.
-     * @tparam Asset The Asset type.
-     * @param asset The asset to use for determining the scale.
-     * @return The scale of this Number for the given asset.
-     */
-    template <class STAmount, class Asset>
-    int
-    scale(Asset const& asset) const
-        requires CanUseAsScale<STAmount, Asset>;
-
     constexpr Number
     operator+() const noexcept;
     constexpr Number
@@ -626,14 +602,6 @@ Number::exponent() const noexcept
     return e;
 }
 
-template <class STAmount, class Asset>
-int
-Number::scale(Asset const& asset) const
-    requires CanUseAsScale<STAmount, Asset>
-{
-    return STAmount{asset, *this}.exponent();
-}
-
 inline constexpr Number
 Number::operator+() const noexcept
 {

src/test/app/Invariants_test.cpp

@@ -4,7 +4,6 @@
 
 #include <xrpld/app/tx/apply.h>
 #include <xrpld/app/tx/detail/ApplyContext.h>
-#include <xrpld/app/tx/detail/InvariantCheck.h>
 
 #include <xrpl/beast/unit_test/suite.h>
 #include <xrpl/beast/utility/Journal.h>
@@ -21,9 +20,6 @@
 
 #include <boost/algorithm/string/predicate.hpp>
 
-#include <initializer_list>
-#include <string>
-
 namespace xrpl {
 namespace test {
 
@@ -3892,122 +3888,6 @@ class Invariants_test : public beast::unit_test::suite
             precloseMpt);
     }
 
-    void
-    testVaultComputeMinScale()
-    {
-        using namespace jtx;
-
-        Account const issuer{"issuer"};
-        PrettyAsset const vaultAsset = issuer["IOU"];
-
-        struct TestCase
-        {
-            std::string name;
-            std::int32_t expectedMinScale;
-            std::initializer_list<Number const> values;
-        };
-
-        NumberMantissaScaleGuard g{MantissaRange::large};
-
-        auto const testCases = std::vector<TestCase>{
-            {
-                .name = "No values",
-                .expectedMinScale = 0,
-                .values = {},
-            },
-            {
-                .name = "Mixed integer and Number values",
-                .expectedMinScale = -15,
-                .values = {1, -1, Number{10, -1}},
-            },
-            {
-                .name = "Mixed scales",
-                .expectedMinScale = -17,
-                .values = {Number{1, -2}, Number{5, -3}, Number{3, -2}},
-            },
-            {
-                .name = "Mixed mantissa sizes",
-                .expectedMinScale = -12,
-                .values =
-                    {Number{1},
-                     Number{1234, -3},
-                     Number{12345, -6},
-                     Number{123, 1}},
-            },
-        };
-
-        for (auto const& tc : testCases)
-        {
-            testcase("vault computeMinScale: " + tc.name);
-
-            auto const actualScale =
-                ValidVault::computeMinScale(vaultAsset, tc.values);
-
-            BEAST_EXPECTS(
-                actualScale == tc.expectedMinScale,
-                "expected: " + std::to_string(tc.expectedMinScale) +
-                    ", actual: " + std::to_string(actualScale));
-            for (auto const& num : tc.values)
-            {
-                // None of these scales are far enough apart that rounding the
-                // values would lose information, so check that the rounded
-                // value matches the original.
-                auto const actualRounded =
-                    roundToAsset(vaultAsset, num, actualScale);
-                BEAST_EXPECTS(
-                    actualRounded == num,
-                    "number " + to_string(num) + " rounded to scale " +
-                        std::to_string(actualScale) + " is " +
-                        to_string(actualRounded));
-            }
-        }
-
-        auto const testCases2 = std::vector<TestCase>{
-            {
-                .name = "False equivalence",
-                .expectedMinScale = -15,
-                .values =
-                    {
-                        Number{1234567890123456789, -18},
-                        Number{12345, -4},
-                        Number{1},
-                    },
-            },
-        };
-
-        // Unlike the first set of test cases, the values in these test could
-        // look equivalent if using the wrong scale.
-        for (auto const& tc : testCases2)
-        {
-            testcase("vault computeMinScale: " + tc.name);
-
-            auto const actualScale =
-                ValidVault::computeMinScale(vaultAsset, tc.values);
-
-            BEAST_EXPECTS(
-                actualScale == tc.expectedMinScale,
-                "expected: " + std::to_string(tc.expectedMinScale) +
-                    ", actual: " + std::to_string(actualScale));
-            std::optional<Number> first;
-            Number firstRounded;
-            for (auto const& num : tc.values)
-            {
-                if (!first)
-                {
-                    first = num;
-                    firstRounded = roundToAsset(vaultAsset, num, actualScale);
-                    continue;
-                }
-                auto const numRounded =
-                    roundToAsset(vaultAsset, num, actualScale);
-                BEAST_EXPECTS(
-                    numRounded != firstRounded,
-                    "at a scale of " + std::to_string(actualScale) + " " +
-                        to_string(num) + " == " + to_string(*first));
-            }
-        }
-    }
-
 public:
     void
     run() override
@@ -4031,7 +3911,6 @@ public:
         testValidPseudoAccounts();
         testValidLoanBroker();
         testVault();
-        testVaultComputeMinScale();
     }
 };
 

src/test/rpc/LedgerEntry_test.cpp

@@ -5,6 +5,8 @@
 #include <test/jtx/multisign.h>
 #include <test/jtx/xchain_bridge.h>
 
+#include <xrpld/app/tx/apply.h>
+
 #include <xrpl/beast/unit_test.h>
 #include <xrpl/json/json_value.h>
 #include <xrpl/protocol/AccountID.h>
@@ -30,6 +32,7 @@ enum class FieldType {
     CurrencyField,
     HashField,
     HashOrObjectField,
+    FixedHashField,
     IssueField,
     ObjectField,
     StringField,
@@ -86,6 +89,7 @@ getTypeName(FieldType typeID)
         case FieldType::CurrencyField:
             return "Currency";
         case FieldType::HashField:
+        case FieldType::FixedHashField:
             return "hex string";
         case FieldType::HashOrObjectField:
             return "hex string or object";
@@ -202,6 +206,7 @@ class LedgerEntry_test : public beast::unit_test::suite
         static auto const& badBlobValues = remove({3, 7, 8, 16});
         static auto const& badCurrencyValues = remove({14});
         static auto const& badHashValues = remove({2, 3, 7, 8, 16});
+        static auto const& badFixedHashValues = remove({1, 2, 3, 4, 7, 8, 16});
         static auto const& badIndexValues = remove({12, 16, 18, 19});
         static auto const& badUInt32Values = remove({2, 3});
         static auto const& badUInt64Values = remove({2, 3});
@@ -222,6 +227,8 @@ class LedgerEntry_test : public beast::unit_test::suite
                 return badHashValues;
             case FieldType::HashOrObjectField:
                 return badIndexValues;
+            case FieldType::FixedHashField:
+                return badFixedHashValues;
             case FieldType::IssueField:
                 return badIssueValues;
             case FieldType::UInt32Field:
@@ -717,7 +724,12 @@ class LedgerEntry_test : public beast::unit_test::suite
         }
 
         // negative tests
-        runLedgerEntryTest(env, jss::amendments);
+        testMalformedField(
+            env,
+            Json::Value{},
+            jss::amendments,
+            FieldType::FixedHashField,
+            "malformedRequest");
     }
 
     void
@@ -1538,7 +1550,12 @@ class LedgerEntry_test : public beast::unit_test::suite
         }
 
         // negative tests
-        runLedgerEntryTest(env, jss::fee);
+        testMalformedField(
+            env,
+            Json::Value{},
+            jss::fee,
+            FieldType::FixedHashField,
+            "malformedRequest");
     }
 
     void
@@ -1561,7 +1578,12 @@ class LedgerEntry_test : public beast::unit_test::suite
         }
 
         // negative tests
-        runLedgerEntryTest(env, jss::hashes);
+        testMalformedField(
+            env,
+            Json::Value{},
+            jss::hashes,
+            FieldType::FixedHashField,
+            "malformedRequest");
     }
 
     void
@@ -1686,7 +1708,12 @@ class LedgerEntry_test : public beast::unit_test::suite
         }
 
         // negative tests
-        runLedgerEntryTest(env, jss::nunl);
+        testMalformedField(
+            env,
+            Json::Value{},
+            jss::nunl,
+            FieldType::FixedHashField,
+            "malformedRequest");
     }
 
     void
@@ -2343,6 +2370,438 @@ class LedgerEntry_test : public beast::unit_test::suite
         }
     }
 
+    /// Test the ledger entry types that don't take parameters
+    void
+    testFixed()
+    {
+        using namespace test::jtx;
+
+        Account const alice{"alice"};
+        Account const bob{"bob"};
+
+        Env env{*this, envconfig([](auto cfg) {
+                    cfg->START_UP = Config::FRESH;
+                    return cfg;
+                })};
+
+        env.close();
+
+        /** Verifies that the RPC result has the expected data
+         *
+         * @param good: Indicates that the request should have succeeded
+         *   and returned a ledger object of `expectedType` type.
+         * @param jv: The RPC result Json value
+         * @param expectedType: The type that the ledger object should
+         *   have if "good".
+         * @param expectedError: Optional. The expected error if not
+         *   good. Defaults to "entryNotFound".
+         */
+        auto checkResult =
+            [&](bool good,
+                Json::Value const& jv,
+                Json::StaticString const& expectedType,
+                std::optional<std::string> const& expectedError = {}) {
+                if (good)
+                {
+                    BEAST_EXPECTS(
+                        jv.isObject() && jv.isMember(jss::result) &&
+                            !jv[jss::result].isMember(jss::error) &&
+                            jv[jss::result].isMember(jss::node) &&
+                            jv[jss::result][jss::node].isMember(
+                                sfLedgerEntryType.jsonName) &&
+                            jv[jss::result][jss::node]
+                              [sfLedgerEntryType.jsonName] == expectedType,
+                        to_string(jv));
+                }
+                else
+                {
+                    BEAST_EXPECTS(
+                        jv.isObject() && jv.isMember(jss::result) &&
+                            jv[jss::result].isMember(jss::error) &&
+                            !jv[jss::result].isMember(jss::node) &&
+                            jv[jss::result][jss::error] ==
+                                expectedError.value_or("entryNotFound"),
+                        to_string(jv));
+                }
+            };
+
+        /** Runs a series of tests for a given fixed-position ledger
+         * entry.
+         *
+         * @param field: The Json request field to use.
+         * @param expectedType: The type that the ledger object should
+         *   have if "good".
+         * @param expectedKey: The keylet of the fixed object.
+         * @param good: Indicates whether the object is expected to
+         *   exist.
+         */
+        auto test = [&](Json::StaticString const& field,
+                        Json::StaticString const& expectedType,
+                        Keylet const& expectedKey,
+                        bool good) {
+            testcase << expectedType.c_str() << (good ? "" : " not")
+                     << " found";
+
+            auto const hexKey = strHex(expectedKey.key);
+
+            {
+                // Test bad values
+                // "field":null
+                Json::Value params;
+                params[jss::ledger_index] = jss::validated;
+                params[field] = Json::nullValue;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, expectedType, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // "field":"string"
+                params[jss::ledger_index] = jss::validated;
+                params[field] = "arbitrary string";
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, expectedType, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // "field":false
+                params[jss::ledger_index] = jss::validated;
+                params[field] = false;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, expectedType, "invalidParams");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+
+                // "field":[incorrect index hash]
+                auto const badKey = strHex(expectedKey.key + uint256{1});
+                params[jss::ledger_index] = jss::validated;
+                params[field] = badKey;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, expectedType, "entryNotFound");
+                BEAST_EXPECTS(
+                    jv[jss::result][jss::index] == badKey, to_string(jv));
+            }
+
+            {
+                Json::Value params;
+                // "index":"field" using API 2
+                params[jss::ledger_index] = jss::validated;
+                params[jss::index] = field;
+                params[jss::api_version] = 2;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, expectedType, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            std::string const pdIdx = [&]() {
+                {
+                    Json::Value params;
+                    // Test good values
+                    // Use the "field":true notation
+                    params[jss::ledger_index] = jss::validated;
+                    params[field] = true;
+                    auto const jv =
+                        env.rpc("json", "ledger_entry", to_string(params));
+                    // Index will always be returned for valid parameters.
+                    std::string const pdIdx =
+                        jv[jss::result][jss::index].asString();
+                    BEAST_EXPECTS(hexKey == pdIdx, to_string(jv));
+                    checkResult(good, jv, expectedType);
+
+                    return pdIdx;
+                }
+            }();
+
+            {
+                Json::Value params;
+                // "field":"[index hash]"
+                params[jss::ledger_index] = jss::validated;
+                params[field] = hexKey;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(good, jv, expectedType);
+                BEAST_EXPECT(jv[jss::result][jss::index].asString() == hexKey);
+            }
+
+            {
+                // Bad value
+                // Use the "index":"field" notation with API 2
+                Json::Value params;
+                params[jss::ledger_index] = jss::validated;
+                params[jss::index] = field;
+                params[jss::api_version] = 2;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, expectedType, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // Use the "index":"field" notation with API 3
+                params[jss::ledger_index] = jss::validated;
+                params[jss::index] = field;
+                params[jss::api_version] = 3;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                // Index is correct either way
+                BEAST_EXPECT(jv[jss::result][jss::index].asString() == hexKey);
+                checkResult(good, jv, expectedType);
+            }
+
+            {
+                Json::Value params;
+                // Use the "index":"[index hash]" notation
+                params[jss::ledger_index] = jss::validated;
+                params[jss::index] = pdIdx;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                // Index is correct either way
+                BEAST_EXPECT(jv[jss::result][jss::index].asString() == hexKey);
+                checkResult(good, jv, expectedType);
+            }
+        };
+
+        test(jss::amendments, jss::Amendments, keylet::amendments(), true);
+        test(jss::fee, jss::FeeSettings, keylet::fees(), true);
+        // There won't be an nunl
+        test(jss::nunl, jss::NegativeUNL, keylet::negativeUNL(), false);
+        // Can only get the short skip list this way
+        test(jss::hashes, jss::LedgerHashes, keylet::skip(), true);
+    }
+
+    void
+    testHashes()
+    {
+        using namespace test::jtx;
+
+        Account const alice{"alice"};
+        Account const bob{"bob"};
+
+        Env env{*this, envconfig([](auto cfg) {
+                    cfg->START_UP = Config::FRESH;
+                    return cfg;
+                })};
+
+        env.close();
+
+        /** Verifies that the RPC result has the expected data
+         *
+         * @param good: Indicates that the request should have succeeded
+         *   and returned a ledger object of `expectedType` type.
+         * @param jv: The RPC result Json value
+         * @param expectedCount: The number of Hashes expected in the
+         *   object if "good".
+         * @param expectedError: Optional. The expected error if not
+         *   good. Defaults to "entryNotFound".
+         */
+        auto checkResult =
+            [&](bool good,
+                Json::Value const& jv,
+                int expectedCount,
+                std::optional<std::string> const& expectedError = {}) {
+                if (good)
+                {
+                    BEAST_EXPECTS(
+                        jv.isObject() && jv.isMember(jss::result) &&
+                            !jv[jss::result].isMember(jss::error) &&
+                            jv[jss::result].isMember(jss::node) &&
+                            jv[jss::result][jss::node].isMember(
+                                sfLedgerEntryType.jsonName) &&
+                            jv[jss::result][jss::node]
+                              [sfLedgerEntryType.jsonName] == jss::LedgerHashes,
+                        to_string(jv));
+                    BEAST_EXPECTS(
+                        jv[jss::result].isMember(jss::node) &&
+                            jv[jss::result][jss::node].isMember("Hashes") &&
+                            jv[jss::result][jss::node]["Hashes"].size() ==
+                                expectedCount,
+                        to_string(jv[jss::result][jss::node]["Hashes"].size()));
+                }
+                else
+                {
+                    BEAST_EXPECTS(
+                        jv.isObject() && jv.isMember(jss::result) &&
+                            jv[jss::result].isMember(jss::error) &&
+                            !jv[jss::result].isMember(jss::node) &&
+                            jv[jss::result][jss::error] ==
+                                expectedError.value_or("entryNotFound"),
+                        to_string(jv));
+                }
+            };
+
+        /** Runs a series of tests for a given ledger index.
+         *
+         * @param ledger: The ledger index value of the "hashes" request
+         *   parameter. May not necessarily be a number.
+         * @param expectedKey: The expected keylet of the object.
+         * @param good: Indicates whether the object is expected to
+         *   exist.
+         * @param expectedCount: The number of Hashes expected in the
+         *   object if "good".
+         */
+        auto test = [&](Json::Value ledger,
+                        Keylet const& expectedKey,
+                        bool good,
+                        int expectedCount = 0) {
+            testcase << "LedgerHashes: seq: " << env.current()->header().seq
+                     << " \"hashes\":" << to_string(ledger)
+                     << (good ? "" : " not") << " found";
+
+            auto const hexKey = strHex(expectedKey.key);
+
+            {
+                // Test bad values
+                // "hashes":null
+                Json::Value params;
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = Json::nullValue;
+                auto jv = env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, 0, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // "hashes":"non-uint string"
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = "arbitrary string";
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, 0, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // "hashes":"uint string" is invalid, too
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = "10";
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, 0, "malformedRequest");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // "hashes":false
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = false;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, 0, "invalidParams");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            {
+                Json::Value params;
+                // "hashes":-1
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = -1;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, 0, "internal");
+                BEAST_EXPECT(!jv[jss::result].isMember(jss::index));
+            }
+
+            // "hashes":[incorrect index hash]
+            {
+                Json::Value params;
+                auto const badKey = strHex(expectedKey.key + uint256{1});
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = badKey;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(false, jv, 0, "entryNotFound");
+                BEAST_EXPECT(jv[jss::result][jss::index] == badKey);
+            }
+
+            {
+                Json::Value params;
+                // Test good values
+                // Use the "hashes":ledger notation
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = ledger;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(good, jv, expectedCount);
+                // Index will always be returned for valid parameters.
+                std::string const pdIdx =
+                    jv[jss::result][jss::index].asString();
+                BEAST_EXPECTS(hexKey == pdIdx, strHex(pdIdx));
+            }
+
+            {
+                Json::Value params;
+                // "hashes":"[index hash]"
+                params[jss::ledger_index] = jss::validated;
+                params[jss::hashes] = hexKey;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(good, jv, expectedCount);
+                // Index is correct either way
+                BEAST_EXPECTS(
+                    hexKey == jv[jss::result][jss::index].asString(),
+                    strHex(jv[jss::result][jss::index].asString()));
+            }
+
+            {
+                Json::Value params;
+                // Use the "index":"[index hash]" notation
+                params[jss::ledger_index] = jss::validated;
+                params[jss::index] = hexKey;
+                auto const jv =
+                    env.rpc("json", "ledger_entry", to_string(params));
+                checkResult(good, jv, expectedCount);
+                // Index is correct either way
+                BEAST_EXPECTS(
+                    hexKey == jv[jss::result][jss::index].asString(),
+                    strHex(jv[jss::result][jss::index].asString()));
+            }
+        };
+
+        // short skip list
+        test(true, keylet::skip(), true, 2);
+        // long skip list at index 0
+        test(1, keylet::skip(1), false);
+        // long skip list at index 1
+        test(1 << 17, keylet::skip(1 << 17), false);
+
+        // Close more ledgers, but stop short of the flag ledger
+        for (auto i = env.current()->seq(); i <= 250; ++i)
+            env.close();
+
+        // short skip list
+        test(true, keylet::skip(), true, 249);
+        // long skip list at index 0
+        test(1, keylet::skip(1), false);
+        // long skip list at index 1
+        test(1 << 17, keylet::skip(1 << 17), false);
+
+        // Close a flag ledger so the first "long" skip list is created
+        for (auto i = env.current()->seq(); i <= 260; ++i)
+            env.close();
+
+        // short skip list
+        test(true, keylet::skip(), true, 256);
+        // long skip list at index 0
+        test(1, keylet::skip(1), true, 1);
+        // long skip list at index 1
+        test(1 << 17, keylet::skip(1 << 17), false);
+    }
+
     void
     testCLI()
     {
@@ -2400,6 +2859,8 @@ public:
         testOracleLedgerEntry();
         testMPT();
         testPermissionedDomain();
+        testFixed();
+        testHashes();
         testCLI();
     }
 };

src/xrpld/app/misc/LendingHelpers.h

@@ -176,7 +176,8 @@ getAssetsTotalScale(SLE::const_ref vaultSle)
 {
     if (!vaultSle)
         return Number::minExponent - 1;  // LCOV_EXCL_LINE
-    return vaultSle->at(sfAssetsTotal).scale<STAmount>(vaultSle->at(sfAsset));
+    return STAmount{vaultSle->at(sfAsset), vaultSle->at(sfAssetsTotal)}
+        .exponent();
 }
 
 TER

src/xrpld/app/tx/detail/InvariantCheck.cpp

@@ -22,12 +22,7 @@
 #include <xrpl/protocol/Units.h>
 #include <xrpl/protocol/nftPageMask.h>
 
-#include <algorithm>
-#include <cstddef>
 #include <cstdint>
-#include <initializer_list>
-#include <iostream>
-#include <iterator>
 #include <optional>
 
 namespace xrpl {
@@ -3201,29 +3196,16 @@ ValidVault::finalize(
                     "xrpl::ValidVault::finalize : deposit updated a vault");
                 auto const& beforeVault = beforeVault_[0];
 
-                auto const maybeVaultDeltaAssets =
-                    deltaAssets(afterVault.pseudoId);
-                if (!maybeVaultDeltaAssets)
+                auto const vaultDeltaAssets = deltaAssets(afterVault.pseudoId);
+
+                if (!vaultDeltaAssets)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must change vault balance";
                     return false;  // That's all we can do
                 }
 
-                // Get the coarsest scale to round calculations to
-                auto const minScale = computeMinScale(
-                    vaultAsset,
-                    {
-                        *maybeVaultDeltaAssets,
-                        afterVault.assetsTotal - beforeVault.assetsTotal,
-                        afterVault.assetsAvailable -
-                            beforeVault.assetsAvailable,
-                    });
-
-                auto const vaultDeltaAssets =
-                    roundToAsset(vaultAsset, *maybeVaultDeltaAssets, minScale);
-
-                if (vaultDeltaAssets > tx[sfAmount])
+                if (*vaultDeltaAssets > tx[sfAmount])
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must not change vault "
@@ -3231,7 +3213,7 @@ ValidVault::finalize(
                     result = false;
                 }
 
-                if (vaultDeltaAssets <= zero)
+                if (*vaultDeltaAssets <= zero)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must increase vault balance";
@@ -3248,24 +3230,16 @@ ValidVault::finalize(
 
                 if (!issuerDeposit)
                 {
-                    auto const maybeAccDeltaAssets = deltaAssetsTxAccount();
-                    if (!maybeAccDeltaAssets)
+                    auto const accountDeltaAssets = deltaAssetsTxAccount();
+                    if (!accountDeltaAssets)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: deposit must change depositor "
                             "balance";
                         return false;
                     }
-                    auto const localMinScale = std::min(
-                        minScale,
-                        computeMinScale(vaultAsset, {*maybeAccDeltaAssets}));
 
-                    auto const accountDeltaAssets = roundToAsset(
-                        vaultAsset, *maybeAccDeltaAssets, localMinScale);
-                    auto const localVaultDeltaAssets = roundToAsset(
-                        vaultAsset, vaultDeltaAssets, localMinScale);
-
-                    if (accountDeltaAssets >= zero)
+                    if (*accountDeltaAssets >= zero)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: deposit must decrease depositor "
@@ -3273,7 +3247,7 @@ ValidVault::finalize(
                         result = false;
                     }
 
-                    if (localVaultDeltaAssets * -1 != accountDeltaAssets)
+                    if (*accountDeltaAssets * -1 != *vaultDeltaAssets)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: deposit must change vault and "
@@ -3291,17 +3265,16 @@ ValidVault::finalize(
                     result = false;
                 }
 
-                auto const maybeAccDeltaShares = deltaShares(tx[sfAccount]);
-                if (!maybeAccDeltaShares)
+                auto const accountDeltaShares = deltaShares(tx[sfAccount]);
+                if (!accountDeltaShares)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must change depositor "
                         "shares";
                     return false;  // That's all we can do
                 }
-                // We don't need to round shares, they are integral MPT
-                auto const accountDeltaShares = *maybeAccDeltaShares;
-                if (accountDeltaShares <= zero)
+
+                if (*accountDeltaShares <= zero)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must increase depositor "
@@ -3309,18 +3282,15 @@ ValidVault::finalize(
                     result = false;
                 }
 
-                auto const maybeVaultDeltaShares =
-                    deltaShares(afterVault.pseudoId);
-                if (!maybeVaultDeltaShares || *maybeVaultDeltaShares == zero)
+                auto const vaultDeltaShares = deltaShares(afterVault.pseudoId);
+                if (!vaultDeltaShares || *vaultDeltaShares == zero)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must change vault shares";
                     return false;  // That's all we can do
                 }
 
-                // We don't need to round shares, they are integral MPT
-                auto const vaultDeltaShares = *maybeVaultDeltaShares;
-                if (vaultDeltaShares * -1 != accountDeltaShares)
+                if (*vaultDeltaShares * -1 != *accountDeltaShares)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: deposit must change depositor and "
@@ -3328,22 +3298,15 @@ ValidVault::finalize(
                     result = false;
                 }
 
-                auto const assetTotalDelta = roundToAsset(
-                    vaultAsset,
-                    afterVault.assetsTotal - beforeVault.assetsTotal,
-                    minScale);
-                if (assetTotalDelta != vaultDeltaAssets)
+                if (beforeVault.assetsTotal + *vaultDeltaAssets !=
+                    afterVault.assetsTotal)
                 {
                     JLOG(j.fatal()) << "Invariant failed: deposit and assets "
                                        "outstanding must add up";
                     result = false;
                 }
-
-                auto const assetAvailableDelta = roundToAsset(
-                    vaultAsset,
-                    afterVault.assetsAvailable - beforeVault.assetsAvailable,
-                    minScale);
-                if (assetAvailableDelta != vaultDeltaAssets)
+                if (beforeVault.assetsAvailable + *vaultDeltaAssets !=
+                    afterVault.assetsAvailable)
                 {
                     JLOG(j.fatal()) << "Invariant failed: deposit and assets "
                                        "available must add up";
@@ -3361,32 +3324,22 @@ ValidVault::finalize(
                     "vault");
                 auto const& beforeVault = beforeVault_[0];
 
-                auto const maybeVaultDeltaAssets =
-                    deltaAssets(afterVault.pseudoId);
+                auto const vaultDeltaAssets = deltaAssets(afterVault.pseudoId);
 
-                if (!maybeVaultDeltaAssets)
+                if (!vaultDeltaAssets)
                 {
                     JLOG(j.fatal()) << "Invariant failed: withdrawal must "
                                        "change vault balance";
                     return false;  // That's all we can do
                 }
 
-                // Get the most coarse scale to round calculations to
-                auto const minScale = computeMinScale(
-                    vaultAsset,
-                    {*maybeVaultDeltaAssets,
-                     afterVault.assetsTotal - beforeVault.assetsTotal,
-                     afterVault.assetsAvailable - beforeVault.assetsAvailable});
-
-                auto const vaultPseudoDeltaAssets =
-                    roundToAsset(vaultAsset, *maybeVaultDeltaAssets, minScale);
-
-                if (vaultPseudoDeltaAssets >= zero)
+                if (*vaultDeltaAssets >= zero)
                 {
                     JLOG(j.fatal()) << "Invariant failed: withdrawal must "
                                        "decrease vault balance";
                     result = false;
                 }
+
                 // Any payments (including withdrawal) going to the issuer
                 // do not change their balance, but destroy funds instead.
                 bool const issuerWithdrawal = [&]() -> bool {
@@ -3399,8 +3352,8 @@ ValidVault::finalize(
 
                 if (!issuerWithdrawal)
                 {
-                    auto const maybeAccDelta = deltaAssetsTxAccount();
-                    auto const maybeOtherAccDelta =
+                    auto const accountDeltaAssets = deltaAssetsTxAccount();
+                    auto const otherAccountDelta =
                         [&]() -> std::optional<Number> {
                         if (auto const destination = tx[~sfDestination];
                             destination && *destination != tx[sfAccount])
@@ -3408,8 +3361,8 @@ ValidVault::finalize(
                         return std::nullopt;
                     }();
 
-                    if (maybeAccDelta.has_value() ==
-                        maybeOtherAccDelta.has_value())
+                    if (accountDeltaAssets.has_value() ==
+                        otherAccountDelta.has_value())
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: withdrawal must change one "
@@ -3418,18 +3371,10 @@ ValidVault::finalize(
                     }
 
                     auto const destinationDelta =  //
-                        maybeAccDelta ? *maybeAccDelta : *maybeOtherAccDelta;
+                        accountDeltaAssets ? *accountDeltaAssets
+                                           : *otherAccountDelta;
 
-                    // the scale of destinationDelta can be coarser than
-                    // minScale, so we take that into account when rounding
-                    auto const localMinScale = std::min(
-                        minScale,
-                        computeMinScale(vaultAsset, {destinationDelta}));
-
-                    auto const roundedDestinationDelta = roundToAsset(
-                        vaultAsset, destinationDelta, localMinScale);
-
-                    if (roundedDestinationDelta <= zero)
+                    if (destinationDelta <= zero)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: withdrawal must increase "
@@ -3437,9 +3382,7 @@ ValidVault::finalize(
                         result = false;
                     }
 
-                    auto const localPseudoDeltaAssets = roundToAsset(
-                        vaultAsset, vaultPseudoDeltaAssets, localMinScale);
-                    if (localPseudoDeltaAssets * -1 != roundedDestinationDelta)
+                    if (*vaultDeltaAssets * -1 != destinationDelta)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: withdrawal must change vault "
@@ -3447,7 +3390,7 @@ ValidVault::finalize(
                         result = false;
                     }
                 }
-                // We don't need to round shares, they are integral MPT
+
                 auto const accountDeltaShares = deltaShares(tx[sfAccount]);
                 if (!accountDeltaShares)
                 {
@@ -3464,7 +3407,7 @@ ValidVault::finalize(
                         "shares";
                     result = false;
                 }
-                // We don't need to round shares, they are integral MPT
+
                 auto const vaultDeltaShares = deltaShares(afterVault.pseudoId);
                 if (!vaultDeltaShares || *vaultDeltaShares == zero)
                 {
@@ -3481,24 +3424,17 @@ ValidVault::finalize(
                     result = false;
                 }
 
-                auto const assetTotalDelta = roundToAsset(
-                    vaultAsset,
-                    afterVault.assetsTotal - beforeVault.assetsTotal,
-                    minScale);
                 // Note, vaultBalance is negative (see check above)
-                if (assetTotalDelta != vaultPseudoDeltaAssets)
+                if (beforeVault.assetsTotal + *vaultDeltaAssets !=
+                    afterVault.assetsTotal)
                 {
                     JLOG(j.fatal()) << "Invariant failed: withdrawal and "
                                        "assets outstanding must add up";
                     result = false;
                 }
 
-                auto const assetAvailableDelta = roundToAsset(
-                    vaultAsset,
-                    afterVault.assetsAvailable - beforeVault.assetsAvailable,
-                    minScale);
-
-                if (assetAvailableDelta != vaultPseudoDeltaAssets)
+                if (beforeVault.assetsAvailable + *vaultDeltaAssets !=
+                    afterVault.assetsAvailable)
                 {
                     JLOG(j.fatal()) << "Invariant failed: withdrawal and "
                                        "assets available must add up";
@@ -3532,19 +3468,10 @@ ValidVault::finalize(
                     }
                 }
 
-                auto const maybeVaultDeltaAssets =
-                    deltaAssets(afterVault.pseudoId);
-                if (maybeVaultDeltaAssets)
+                auto const vaultDeltaAssets = deltaAssets(afterVault.pseudoId);
+                if (vaultDeltaAssets)
                 {
-                    auto const minScale = computeMinScale(
-                        vaultAsset,
-                        {*maybeVaultDeltaAssets,
-                         afterVault.assetsTotal - beforeVault.assetsTotal,
-                         afterVault.assetsAvailable -
-                             beforeVault.assetsAvailable});
-                    auto const vaultDeltaAssets = roundToAsset(
-                        vaultAsset, *maybeVaultDeltaAssets, minScale);
-                    if (vaultDeltaAssets >= zero)
+                    if (*vaultDeltaAssets >= zero)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: clawback must decrease vault "
@@ -3552,11 +3479,8 @@ ValidVault::finalize(
                         result = false;
                     }
 
-                    auto const assetsTotalDelta = roundToAsset(
-                        vaultAsset,
-                        afterVault.assetsTotal - beforeVault.assetsTotal,
-                        minScale);
-                    if (assetsTotalDelta != vaultDeltaAssets)
+                    if (beforeVault.assetsTotal + *vaultDeltaAssets !=
+                        afterVault.assetsTotal)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: clawback and assets outstanding "
@@ -3564,12 +3488,8 @@ ValidVault::finalize(
                         result = false;
                     }
 
-                    auto const assetAvailableDelta = roundToAsset(
-                        vaultAsset,
-                        afterVault.assetsAvailable -
-                            beforeVault.assetsAvailable,
-                        minScale);
-                    if (assetAvailableDelta != vaultDeltaAssets)
+                    if (beforeVault.assetsAvailable + *vaultDeltaAssets !=
+                        afterVault.assetsAvailable)
                     {
                         JLOG(j.fatal()) <<  //
                             "Invariant failed: clawback and assets available "
@@ -3584,15 +3504,15 @@ ValidVault::finalize(
                     return false;  // That's all we can do
                 }
 
-                // We don't need to round shares, they are integral MPT
-                auto const maybeAccountDeltaShares = deltaShares(tx[sfHolder]);
-                if (!maybeAccountDeltaShares)
+                auto const accountDeltaShares = deltaShares(tx[sfHolder]);
+                if (!accountDeltaShares)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: clawback must change holder shares";
                     return false;  // That's all we can do
                 }
-                if (*maybeAccountDeltaShares >= zero)
+
+                if (*accountDeltaShares >= zero)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: clawback must decrease holder "
@@ -3600,7 +3520,6 @@ ValidVault::finalize(
                     result = false;
                 }
 
-                // We don't need to round shares, they are integral MPT
                 auto const vaultDeltaShares = deltaShares(afterVault.pseudoId);
                 if (!vaultDeltaShares || *vaultDeltaShares == zero)
                 {
@@ -3609,7 +3528,7 @@ ValidVault::finalize(
                     return false;  // That's all we can do
                 }
 
-                if (*vaultDeltaShares * -1 != *maybeAccountDeltaShares)
+                if (*vaultDeltaShares * -1 != *accountDeltaShares)
                 {
                     JLOG(j.fatal()) <<  //
                         "Invariant failed: clawback must change holder and "
@@ -3647,32 +3566,4 @@ ValidVault::finalize(
     return true;
 }
 
-[[nodiscard]] std::int32_t
-ValidVault::computeMinScale(
-    Asset const& asset,
-    std::initializer_list<Number const> numbers)
-{
-    if (numbers.size() == 0)
-        return 0;
-    // Helper to get the minimal scale of an STAmount by removing trailing
-    // zeros from its mantissa
-    auto const getNatScale = [](Asset const& asset,
-                                Number const& value) -> std::int32_t {
-        if (asset.integral())
-            return 0;
-        if (value == beast::zero)
-            return value.exponent();
-
-        return value.scale<STAmount>(asset);
-    };
-
-    std::vector<std::int32_t> natScales;
-    std::transform(
-        numbers.begin(),
-        numbers.end(),
-        std::back_inserter(natScales),
-        [&](Number const& n) { return getNatScale(asset, n); });
-
-    return *std::max_element(natScales.begin(), natScales.end());
-}
 }  // namespace xrpl

src/xrpld/app/tx/detail/InvariantCheck.h

@@ -900,12 +900,6 @@ public:
         XRPAmount const,
         ReadView const&,
         beast::Journal const&);
-
-    // Compute the coarsest scale required to represent all numbers
-    [[nodiscard]] static std::int32_t
-    computeMinScale(
-        Asset const& asset,
-        std::initializer_list<Number const> numbers);
 };
 
 // additional invariant checks can be declared above and then added to this

src/xrpld/app/tx/detail/LoanBrokerCoverWithdraw.cpp

@@ -125,7 +125,7 @@ LoanBrokerCoverWithdraw::preclaim(PreclaimContext const& ctx)
             tenthBipsOfValue(
                 currentDebtTotal,
                 TenthBips32(sleBroker->at(sfCoverRateMinimum))),
-            currentDebtTotal.scale<STAmount>(vaultAsset));
+            currentDebtTotal.exponent());
     }();
     if (coverAvail < amount)
         return tecINSUFFICIENT_FUNDS;

src/xrpld/rpc/handlers/LedgerEntry.cpp

@@ -18,6 +18,32 @@
 
 namespace xrpl {
 
+using FunctionType = std::function<Expected<uint256, Json::Value>(
+    Json::Value const&,
+    Json::StaticString const,
+    unsigned const apiVersion)>;
+
+static Expected<uint256, Json::Value>
+parseFixed(
+    Keylet const& keylet,
+    Json::Value const& params,
+    Json::StaticString const& fieldName,
+    unsigned const apiVersion);
+
+// Helper function to return FunctionType for objects that have a fixed
+// location. That is, they don't take parameters to compute the index.
+// e.g. amendments, fees, negative UNL, etc.
+static FunctionType
+fixed(Keylet const& keylet)
+{
+    return [keylet](
+               Json::Value const& params,
+               Json::StaticString const fieldName,
+               unsigned const apiVersion) -> Expected<uint256, Json::Value> {
+        return parseFixed(keylet, params, fieldName, apiVersion);
+    };
+}
+
 static Expected<uint256, Json::Value>
 parseObjectID(
     Json::Value const& params,
@@ -33,13 +59,33 @@ parseObjectID(
 }
 
 static Expected<uint256, Json::Value>
-parseIndex(Json::Value const& params, Json::StaticString const fieldName)
+parseIndex(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    unsigned const apiVersion)
 {
+    if (apiVersion > 2u && params.isString())
+    {
+        std::string const index = params.asString();
+        if (index == jss::amendments.c_str())
+            return keylet::amendments().key;
+        if (index == jss::fee.c_str())
+            return keylet::fees().key;
+        if (index == jss::nunl)
+            return keylet::negativeUNL().key;
+        if (index == jss::hashes)
+            // Note this only finds the "short" skip list. Use "hashes":index to
+            // get the long list.
+            return keylet::skip().key;
+    }
     return parseObjectID(params, fieldName, "hex string");
 }
 
 static Expected<uint256, Json::Value>
-parseAccountRoot(Json::Value const& params, Json::StaticString const fieldName)
+parseAccountRoot(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (auto const account = LedgerEntryHelpers::parse<AccountID>(params))
     {
@@ -50,14 +96,13 @@ parseAccountRoot(Json::Value const& params, Json::StaticString const fieldName)
         "malformedAddress", fieldName, "AccountID");
 }
 
-static Expected<uint256, Json::Value>
-parseAmendments(Json::Value const& params, Json::StaticString const fieldName)
-{
-    return parseObjectID(params, fieldName, "hex string");
-}
+auto const parseAmendments = fixed(keylet::amendments());
 
 static Expected<uint256, Json::Value>
-parseAMM(Json::Value const& params, Json::StaticString const fieldName)
+parseAMM(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -85,7 +130,10 @@ parseAMM(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseBridge(Json::Value const& params, Json::StaticString const fieldName)
+parseBridge(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isMember(jss::bridge))
     {
@@ -116,13 +164,19 @@ parseBridge(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseCheck(Json::Value const& params, Json::StaticString const fieldName)
+parseCheck(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     return parseObjectID(params, fieldName, "hex string");
 }
 
 static Expected<uint256, Json::Value>
-parseCredential(Json::Value const& cred, Json::StaticString const fieldName)
+parseCredential(
+    Json::Value const& cred,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!cred.isObject())
     {
@@ -153,7 +207,10 @@ parseCredential(Json::Value const& cred, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseDelegate(Json::Value const& params, Json::StaticString const fieldName)
+parseDelegate(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -244,7 +301,10 @@ parseAuthorizeCredentials(Json::Value const& jv)
 }
 
 static Expected<uint256, Json::Value>
-parseDepositPreauth(Json::Value const& dp, Json::StaticString const fieldName)
+parseDepositPreauth(
+    Json::Value const& dp,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!dp.isObject())
     {
@@ -297,7 +357,10 @@ parseDepositPreauth(Json::Value const& dp, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseDID(Json::Value const& params, Json::StaticString const fieldName)
+parseDID(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     auto const account = LedgerEntryHelpers::parse<AccountID>(params);
     if (!account)
@@ -312,7 +375,8 @@ parseDID(Json::Value const& params, Json::StaticString const fieldName)
 static Expected<uint256, Json::Value>
 parseDirectoryNode(
     Json::Value const& params,
-    Json::StaticString const fieldName)
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -365,7 +429,10 @@ parseDirectoryNode(
 }
 
 static Expected<uint256, Json::Value>
-parseEscrow(Json::Value const& params, Json::StaticString const fieldName)
+parseEscrow(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -384,20 +451,53 @@ parseEscrow(Json::Value const& params, Json::StaticString const fieldName)
     return keylet::escrow(*id, *seq).key;
 }
 
+auto const parseFeeSettings = fixed(keylet::fees());
+
 static Expected<uint256, Json::Value>
-parseFeeSettings(Json::Value const& params, Json::StaticString const fieldName)
+parseFixed(
+    Keylet const& keylet,
+    Json::Value const& params,
+    Json::StaticString const& fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
-    return parseObjectID(params, fieldName, "hex string");
+    if (!params.isBool())
+    {
+        return parseObjectID(params, fieldName, "hex string");
+    }
+    if (!params.asBool())
+    {
+        return LedgerEntryHelpers::invalidFieldError(
+            "invalidParams", fieldName, "true");
+    }
+
+    return keylet.key;
 }
 
 static Expected<uint256, Json::Value>
-parseLedgerHashes(Json::Value const& params, Json::StaticString const fieldName)
+parseLedgerHashes(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    unsigned const apiVersion)
 {
-    return parseObjectID(params, fieldName, "hex string");
+    if (params.isUInt() || params.isInt())
+    {
+        // If the index doesn't parse as a UInt, throw
+        auto const index = params.asUInt();
+
+        // Return the "long" skip list for the given ledger index.
+        auto const keylet = keylet::skip(index);
+        return keylet.key;
+    }
+    // Return the key in `params` or the "short" skip list, which contains
+    // hashes since the last flag ledger.
+    return parseFixed(keylet::skip(), params, fieldName, apiVersion);
 }
 
 static Expected<uint256, Json::Value>
-parseLoanBroker(Json::Value const& params, Json::StaticString const fieldName)
+parseLoanBroker(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -417,7 +517,10 @@ parseLoanBroker(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseLoan(Json::Value const& params, Json::StaticString const fieldName)
+parseLoan(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -437,7 +540,10 @@ parseLoan(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseMPToken(Json::Value const& params, Json::StaticString const fieldName)
+parseMPToken(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -460,7 +566,8 @@ parseMPToken(Json::Value const& params, Json::StaticString const fieldName)
 static Expected<uint256, Json::Value>
 parseMPTokenIssuance(
     Json::Value const& params,
-    Json::StaticString const fieldName)
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     auto const mptIssuanceID = LedgerEntryHelpers::parse<uint192>(params);
     if (!mptIssuanceID)
@@ -471,25 +578,30 @@ parseMPTokenIssuance(
 }
 
 static Expected<uint256, Json::Value>
-parseNFTokenOffer(Json::Value const& params, Json::StaticString const fieldName)
+parseNFTokenOffer(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     return parseObjectID(params, fieldName, "hex string");
 }
 
 static Expected<uint256, Json::Value>
-parseNFTokenPage(Json::Value const& params, Json::StaticString const fieldName)
+parseNFTokenPage(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     return parseObjectID(params, fieldName, "hex string");
 }
 
-static Expected<uint256, Json::Value>
-parseNegativeUNL(Json::Value const& params, Json::StaticString const fieldName)
-{
-    return parseObjectID(params, fieldName, "hex string");
-}
+auto const parseNegativeUNL = fixed(keylet::negativeUNL());
 
 static Expected<uint256, Json::Value>
-parseOffer(Json::Value const& params, Json::StaticString const fieldName)
+parseOffer(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -510,7 +622,10 @@ parseOffer(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseOracle(Json::Value const& params, Json::StaticString const fieldName)
+parseOracle(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -531,7 +646,10 @@ parseOracle(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parsePayChannel(Json::Value const& params, Json::StaticString const fieldName)
+parsePayChannel(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     return parseObjectID(params, fieldName, "hex string");
 }
@@ -539,7 +657,8 @@ parsePayChannel(Json::Value const& params, Json::StaticString const fieldName)
 static Expected<uint256, Json::Value>
 parsePermissionedDomain(
     Json::Value const& pd,
-    Json::StaticString const fieldName)
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (pd.isString())
     {
@@ -568,7 +687,8 @@ parsePermissionedDomain(
 static Expected<uint256, Json::Value>
 parseRippleState(
     Json::Value const& jvRippleState,
-    Json::StaticString const fieldName)
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     Currency uCurrency;
 
@@ -618,13 +738,19 @@ parseRippleState(
 }
 
 static Expected<uint256, Json::Value>
-parseSignerList(Json::Value const& params, Json::StaticString const fieldName)
+parseSignerList(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     return parseObjectID(params, fieldName, "hex string");
 }
 
 static Expected<uint256, Json::Value>
-parseTicket(Json::Value const& params, Json::StaticString const fieldName)
+parseTicket(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -645,7 +771,10 @@ parseTicket(Json::Value const& params, Json::StaticString const fieldName)
 }
 
 static Expected<uint256, Json::Value>
-parseVault(Json::Value const& params, Json::StaticString const fieldName)
+parseVault(
+    Json::Value const& params,
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!params.isObject())
     {
@@ -668,7 +797,8 @@ parseVault(Json::Value const& params, Json::StaticString const fieldName)
 static Expected<uint256, Json::Value>
 parseXChainOwnedClaimID(
     Json::Value const& claim_id,
-    Json::StaticString const fieldName)
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!claim_id.isObject())
     {
@@ -693,7 +823,8 @@ parseXChainOwnedClaimID(
 static Expected<uint256, Json::Value>
 parseXChainOwnedCreateAccountClaimID(
     Json::Value const& claim_id,
-    Json::StaticString const fieldName)
+    Json::StaticString const fieldName,
+    [[maybe_unused]] unsigned const apiVersion)
 {
     if (!claim_id.isObject())
     {
@@ -717,10 +848,6 @@ parseXChainOwnedCreateAccountClaimID(
     return keylet.key;
 }
 
-using FunctionType = Expected<uint256, Json::Value> (*)(
-    Json::Value const&,
-    Json::StaticString const);
-
 struct LedgerEntry
 {
     Json::StaticString fieldName;
@@ -753,7 +880,7 @@ doLedgerEntry(RPC::JsonContext& context)
         {jss::ripple_state, parseRippleState, ltRIPPLE_STATE},
     });
 
-    auto hasMoreThanOneMember = [&]() {
+    auto const hasMoreThanOneMember = [&]() {
         int count = 0;
 
         for (auto const& ledgerEntry : ledgerEntryParsers)
@@ -797,8 +924,8 @@ doLedgerEntry(RPC::JsonContext& context)
                 Json::Value const& params = ledgerEntry.fieldName == jss::bridge
                     ? context.params
                     : context.params[ledgerEntry.fieldName];
-                auto const result =
-                    ledgerEntry.parseFunction(params, ledgerEntry.fieldName);
+                auto const result = ledgerEntry.parseFunction(
+                    params, ledgerEntry.fieldName, context.apiVersion);
                 if (!result)
                     return result.error();
 
@@ -829,9 +956,13 @@ doLedgerEntry(RPC::JsonContext& context)
             throw;
     }
 
+    // Return the computed index regardless of whether the node exists.
+    jvResult[jss::index] = to_string(uNodeIndex);
+
     if (uNodeIndex.isZero())
     {
-        return RPC::make_error(rpcENTRY_NOT_FOUND);
+        RPC::inject_error(rpcENTRY_NOT_FOUND, jvResult);
+        return jvResult;
     }
 
     auto const sleNode = lpLedger->read(keylet::unchecked(uNodeIndex));
@@ -843,12 +974,14 @@ doLedgerEntry(RPC::JsonContext& context)
     if (!sleNode)
     {
         // Not found.
-        return RPC::make_error(rpcENTRY_NOT_FOUND);
+        RPC::inject_error(rpcENTRY_NOT_FOUND, jvResult);
+        return jvResult;
     }
 
     if ((expectedType != ltANY) && (expectedType != sleNode->getType()))
     {
-        return RPC::make_error(rpcUNEXPECTED_LEDGER_TYPE);
+        RPC::inject_error(rpcUNEXPECTED_LEDGER_TYPE, jvResult);
+        return jvResult;
     }
 
     if (bNodeBinary)
@@ -858,12 +991,10 @@ doLedgerEntry(RPC::JsonContext& context)
         sleNode->add(s);
 
         jvResult[jss::node_binary] = strHex(s.peekData());
-        jvResult[jss::index] = to_string(uNodeIndex);
     }
     else
     {
         jvResult[jss::node] = sleNode->getJson(JsonOptions::none);
-        jvResult[jss::index] = to_string(uNodeIndex);
     }
 
     return jvResult;