FlatBuffers – Build Information – Swift Package Index

Build Information

Successful build of FlatBuffers, reference v25.12.19 (7e1630), with Swift 6.4 for Wasm on 23 Sep 2026 15:02:07 UTC.

Swift 6 data race errors: 0

Build Command

bash -c docker run --pull=always --rm -v "checkouts-53886769-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/google/flatbuffers.git
Reference: v25.12.19
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/google/flatbuffers
 * tag               v25.12.19  -> FETCH_HEAD
HEAD is now at 7e16302 FlatBuffers Version 25.12.19 (#8871)
Cloned https://github.com/google/flatbuffers.git
Revision (git rev-parse @):
7e163021e59cca4f8e1e35a7c828b5c6b7915953
SUCCESS checkout https://github.com/google/flatbuffers.git at v25.12.19
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/google/flatbuffers.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886769-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
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warning: 'spi-builder-workspace': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /host/spi-builder-workspace/tests/swift/Tests/Flatbuffers/monsterdata_test.mon
Building for debugging...
[Constructing description]
[Planning deferred tasks]
[33 / 56] Common
[46 / 76] FlatBuffers
[57 / 76] Common
[64 / 76] FlatBuffers-product
[67 / 77] FlatBuffers
[68 / 77] FlatBuffers
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/host/spi-builder-workspace/swift/Sources/FlexBuffers/Utils/functions.swift:106:41: [1;33mwarning: [1;39m'vectorString' is deprecated: use FBT_VECTOR or FBT_VECTOR_KEY instead.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m104 |[0;0m @inline(__always)
[0;36m105 |[0;0m func isTypedVectorType(type: FlexBufferType) -> Bool {
[0;36m106 |[0;0m   return type >= .vectorInt && type <= .vectorString || type == .vectorBool
    [0;36m|[0;0m                                         `- [1;33mwarning: [1;39m'vectorString' is deprecated: use FBT_VECTOR or FBT_VECTOR_KEY instead.[0;0m [#]8;;https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration\DeprecatedDeclaration]8;;\]
[0;36m107 |[0;0m }
[0;36m108 |[0;0m
[#DeprecatedDeclaration]: <https://docs.swift.org/compiler/documentation/diagnostics/deprecated-declaration>
[71 / 77] FlexBuffers
[75 / 78] FlatBuffers
Build complete! (7.14 secs)
Build complete.
{
  "dependencies" : [
    {
      "identity" : "grpc-swift",
      "requirement" : {
        "range" : [
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  "targets" : [
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        "FlatBuffersStructsTests.swift",
        "FlatBuffersTests.swift",
        "FlatBuffersUnionTests.swift",
        "FlatBuffersVectorsTests.swift",
        "FlatbuffersDoubleTests.swift",
        "FlatbuffersMoreDefaults.swift",
        "FlatbuffersVerifierTests.swift",
        "MutatingBool_generated.swift",
        "arrays_test_generated.swift",
        "monster_test.grpc.swift",
        "monster_test_generated.swift",
        "more_defaults_generated.swift",
        "nan_inf_test_generated.swift",
        "optional_scalars_generated.swift",
        "union_vector_generated.swift",
        "vector_has_test_generated.swift"
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      "target_dependencies" : [
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      "sources" : [
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        "FlatBufferBuilder.swift",
        "FlatBufferObject.swift",
        "FlatBuffersUtils.swift",
        "FlatbuffersErrors.swift",
        "Message.swift",
        "Mutable.swift",
        "NativeObject.swift",
        "Offset.swift",
        "Root.swift",
        "String+extension.swift",
        "Struct.swift",
        "Table.swift",
        "TableVerifier.swift",
        "Vectors/FlatbufferVector.swift",
        "Vectors/FlatbuffersVectorInitializable.swift",
        "Vectors/UnionFlatbufferVector.swift",
        "VeriferOptions.swift",
        "Verifiable.swift",
        "Verifier.swift",
        "_InternalByteBuffer.swift"
      ],
      "target_dependencies" : [
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      "type" : "library"
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    {
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}
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Done.