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feat(script_tracer): add script-tracer feature #201

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feat(script_tracer): add script-tracer feature #201

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45ade9a
Squashed 'libbitcoinkernel-sys/bitcoin/' changes from d84fc352cbc..2d…
alexanderwiederin Jul 9, 2026
35bf55e
Merge commit '45ade9a3a7fddab051b815b790ae8cca07e48bb5' into new_kern…
alexanderwiederin Jul 9, 2026
b6cea4b
feat(libbitcoinkernel-sys): add script trace FFI bindings
alexanderwiederin Jul 6, 2026
95956d4
feat(script_trace): add script execution trace callback support
alexanderwiederin Jul 7, 2026
ad9b779
feat(tests): add script trace integration test
alexanderwiederin Jul 7, 2026
1262a6e
docs(examples): add script_trace example
alexanderwiederin Jul 8, 2026
2b963fc
chore(docs): add scripttrace example to README
alexanderwiederin Jul 8, 2026
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3 changes: 3 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -14,6 +14,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Added `ScriptPubkeyExt::as_bytes` to return a zero-copy slice into kernel-managed memory. Unlike `to_bytes`, this does not allocate.
- Added `Transaction::check` for context-free consensus validation of a transaction. Returns `TxCheckResult::Valid` on success or `TxCheckResult::Invalid(TxValidationResult)` on failure.
- Added `TxValidationResult` enum with all transaction validation result variants.
- Added a `script_trace` module with `set_script_trace_callback`/`unset_script_trace_callback` for registering a global `ScriptTracer` (or closure) that receives per-opcode `ScriptTraceFrame`s during script execution. Gated behind the `script-trace` feature.
- Added `ScriptTraceFrame`, `ScriptTraceFrameKind`, and `SigVersion` types.
- Added `KernelError::ScriptTraceUnavailable`, returned by `set_script_trace_callback` if the kernel wasn't built with `ENABLE_SCRIPT_TRACE`.

### Changed
- The `verify` function's `flags` parameter now uses `ScriptVerificationFlags` instead of `u32`, making the type explicit in the public API.
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