Fix nanoFramework.Hardware.Esp32.Rmt signature

[CoryCharlton]

Description

• Fix nanoFramework.Hardware.Esp32.Rmt signature

Motivation and Context

My nanoFramework extension was out of date

How Has This Been Tested?

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue with code or algorithm)
• New feature (non-breaking change which adds functionality to code)
• Breaking change (fix or feature that would cause existing functionality to change)
• Config and build (change in the configuration and build system, has no impact on code or features)
• Dev Containers (changes related with Dev Containers, has no impact on code or features)
• Dependencies/declarations (update dependencies or assembly declarations and changes associated, has no impact on code or features)
• Documentation (changes or updates in the documentation, has no impact on code or features)

Checklist

• My code follows the code style of this project (only if there are changes in source code).
• My changes require an update to the documentation (there are changes that require the docs website to be updated).
• I have updated the documentation accordingly (the changes require an update on the docs in this repo).
• I have read the CONTRIBUTING document.
• I have tested everything locally and all new and existing tests passed (only if there are changes in source code).

Summary by CodeRabbit

Release Notes:

This update includes internal improvements that enhance system stability and consistency for a smoother user experience. While these changes work behind the scenes, they contribute to more streamlined operations and robust framework integration.

• Chores
  • Removed a redundant internal component to optimize operations.
  • Updated a core framework reference to ensure consistent performance.

[coderabbitai]

Walkthrough

This pull request updates the ESP32 RMT native module by modifying the method lookup structure and its associated assembly metadata. Specifically, a NULL entry is removed from the static method_lookup array, and the assembly identifier in the g_CLR_AssemblyNative_nanoFramework_Hardware_Esp32_Rmt structure is changed from 0x8ADAC728 to 0x054E7D74. These modifications directly affect method resolution and how the assembly is identified within the framework.

Changes

File(s)	Change Summary
targets/ESP32/.../nanoFramework_hardware_esp32_rmt_native.cpp	Removed NULL entry from method_lookup array; updated assembly identifier from 0x8ADAC728 to 0x054E7D74.

Possibly related PRs

• Update mscorlib declaration #3123: Modifies the method_lookup array and assembly identifiers similarly, indicating a direct code-level connection.
• Update nanoFramework.Hardware.Esp32.Rmt signatures #3126: Involves adjustments to NULL entries in the array and updates to the assembly identifier, aligning with the current changes.
• Update declaration of mscorlib #3122: Alters method handler mappings and assembly metadata, showing a related focus on assembly management.

Suggested labels

Area: Common libs, Platform: ESP32

Suggested reviewers

• josesimoes

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 772d9e4 and 6baf7e1.

📒 Files selected for processing (1)

• targets/ESP32/_nanoCLR/nanoFramework.Hardware.Esp32.Rmt/nanoFramework_hardware_esp32_rmt_native.cpp (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (3)

• GitHub Check: nf-interpreter (Check_Code_Style)
• GitHub Check: nf-interpreter (Nightly build) (Check_Build_Options)
• GitHub Check: nf-interpreter (Check_Build_Options)

🔇 Additional comments (3)

targets/ESP32/_nanoCLR/nanoFramework.Hardware.Esp32.Rmt/nanoFramework_hardware_esp32_rmt_native.cpp (3)

149-149: Assembly identifier updated to fix signature mismatch.

The change from 0x8ADAC728 to 0x054E7D74 updates the assembly checksum to match the current managed assembly. This is a critical fix that ensures proper method resolution between native and managed code.

---

10-144:

❓ Verification inconclusive

Verify that all method indices are correctly aligned.

The AI summary mentions a NULL entry was removed from the method_lookup array, but I don't see this change explicitly marked in the diff. Ensuring that method indices align properly between native and managed code is critical for the RMT module to function correctly.

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🏁 Script executed:

#!/bin/bash
# Look for any commits modifying method_lookup array structure
git log -p -- targets/ESP32/_nanoCLR/nanoFramework.Hardware.Esp32.Rmt/nanoFramework_hardware_esp32_rmt_native.cpp | grep -A 3 -B 3 "method_lookup"

Length of output: 0

---

Action Required: Verify Method Indices Alignment

The commit history search did not reveal any modifications to the method_lookup array structure, so there’s no automated evidence of a change (such as the removal of a NULL entry) that might affect the method indices. Given the critical nature of the index alignment between native and managed code for the RMT module, please perform a manual verification to confirm that:

• The ordering and number of method pointers (including all NULL placeholders) correctly match the expectations and definitions in the managed code.
• The suspected removal or change regarding a NULL entry is intentional and consistent with the remaining indices.

File to review:
targets/ESP32/_nanoCLR/nanoFramework.Hardware.Esp32.Rmt/nanoFramework_hardware_esp32_rmt_native.cpp (Lines 10-144)

---

146-152:

❓ Verification inconclusive

Confirm managed assembly version compatibility.

The assembly signature change needs to match the current version used by the managed library. Make sure this change is coordinated with any updates to the managed side.

---

🏁 Script executed:

#!/bin/bash
# Find references to the assembly version in managed code
fd -t f -e cs "nanoFramework.Hardware.Esp32.Rmt" | xargs grep -l "AssemblyNativeVersion" | xargs cat

Length of output: 98

---

Action Required: Verify Managed Version Coordination

The native assembly signature now specifies version {100, 0, 5, 1}. However, the search for a direct reference (using the "AssemblyNativeVersion" keyword) in managed code did not yield any results. This could mean one of the following:

• The managed assembly version is defined elsewhere (e.g., in an AssemblyInfo.cs or project file), or
• It may require manual confirmation that the native signature matches the managed library's expected version.

Next Steps:

• Manually verify that the managed assembly’s version information is updated and aligns with the native signature.
• Check any managed configuration files (like AssemblyInfo.cs, .csproj files, or other version management scripts) to ensure they reflect version 100.0.5.1.
• Coordinate any future changes on the managed side with corresponding updates in this native assembly signature.

✨ Finishing Touches

• 📝 Generate Docstrings

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