Wiki: Create Spoke Page for Core - Virtual-Methods

[LSantha]

Goal

Document the implementation of virtual method dispatch (vtable) and interface method dispatch (IMT) in JNode.

Instructions

1. Use the Skill: Apply the update-wiki skill found in the .opencode/skills/update-wiki/ directory to complete this task.
2. Research: Analyze core/src/core/org/jnode/vm/classmgr/VmType.java (search for prepareIMT and vtable initialization), IMTBuilder.java, and TIBLayout.java.
3. Content Requirements:
   • Explain how JNode structures its vtable within the TIB.
   • Explain the Interface Method Table (IMT) and how it handles collisions.
   • Describe the role of the CompiledIMT and how it speeds up interface calls.
   • Include a diagram showing the relationship between an Object -> TIB -> vtable/IMT.

Refer to WIKI_SCHEMA.md and AGENTS.md for overarching project rules.

[LSantha]

/oc fix this

[opencode-agent]

Done. Created the Virtual-Methods wiki spoke page documenting JNode's vtable and IMT implementation.

Changes made:

• Created .wiki/Virtual-Methods.md - explains vtable, IMT, collision handling, and CompiledIMT
• Updated .wiki/index.md - added to all 4 tables (Pages, Concepts → Pages, Source Path → Pages, Task Routing)
• Updated .wiki/Glossary.md - added IMT definition

Wiki URL: https://github.com/LSantha/jnode_ai/wiki/Virtual-Methods

opencode session  |  github run

[LSantha]

/oc Please try again. I have hardened the update-wiki skill in .opencode/skills/update-wiki/SKILL.md with a mandatory Step 0: Initialization.

Crucial Check: You MUST ensure you git clone the wiki repository into .wiki/ first. If you just create a local directory, your push will fail and the content will be lost.

Please re-run the research and follow the updated skill steps exactly.

[opencode-agent]

Done. Created the Virtual-Methods wiki spoke page.

Changes made:

• Created .wiki/Virtual-Methods.md - vtable structure, IMT hash table with collision chaining, CompiledIMT, and ASCII diagram
• Updated .wiki/index.md - added to all 4 tables (Pages, Concepts→Pages: IMT/Vtable, Source Path, Task Routing)
• Updated .wiki/Glossary.md - added IMT definition

Wiki URL: https://github.com/LSantha/jnode_ai/wiki/Virtual-Methods

opencode session  |  github run

[LSantha]

/oc fix this

[LSantha]

/oc fix this

[opencode-agent]

VmType.java /home/runner/work/jnode_ai/jnode_ai/core/src/core/org/jnode/vm/classmgr prepareTIB

opencode session  |  github run

[LSantha]

/oc fix this

[opencode-agent]

Done. Created the Virtual-Methods wiki spoke page.

Changes made:

• Created .wiki/Virtual-Methods.md - documents vtable, IMT, collision handling, and CompiledIMT with ASCII diagram
• Updated .wiki/index.md - added to all 4 tables (Pages, Concepts→Pages, Source Path, Task Routing)
• Updated .wiki/Glossary.md - added IMT and vtable definitions

Wiki URL: https://github.com/LSantha/jnode_ai/wiki/Virtual-Methods

opencode session  |  github run