after-phase3-trace

UE5 After-Phase3-Trace (v2 — virtual entries + reflection filter)

Called by code-analysis:phase3-trace twice in the flow:

1. Before call-chain tracing: to contribute virtual entry points.
2. After language filter: to remove reflection-exempt dead candidates.

Invocation 1: Virtual entry contribution

Input:

{ "phase": "entries" }

Output (merged into entry set by phase3-trace):

{
  "virtual_entries": [
    { "name": "BeginPlay",   "kind": "lifecycle" },
    { "name": "Tick",        "kind": "lifecycle" },
    { "name": "EndPlay",     "kind": "lifecycle" },
    { "name": "<UFUNCTION>", "kind": "reflection", "where": "..." },
    { "name": "<delegate-binding>", "kind": "delegate" },
    { "name": "<timer-callback>", "kind": "timer" },
    { "name": "<input-binding>", "kind": "input" }
  ]
}

For reflection-kind entries, enumerate via Cypher:

MATCH (m:Method)
WHERE m.attribute CONTAINS 'UFUNCTION'
RETURN m.name, m.file, m.line

For delegate-kind entries, find AddDynamic(this, &Class::Method) call sites via Cypher.

Invocation 2: Reflection-exempt filter

Input:

{ "phase": "filter", "candidates": [ ... from phase3-trace + cpp filter ... ] }

Filters (remove candidate if any apply):

1. Has UFUNCTION — reachable via Blueprint, never dead.
2. Has UPROPERTY — may be reached by Details panel / Blueprint node / serialization.
3. Test-only file (*.Test.cpp, under Source/Tests/).
4. Plugin export — declared in a class marked MODULE_API whose module is used by other modules (use ue-deps-mcp for module graph).

Output:

{ "filtered": [...], "removed_reasons": { ... } }

Rules

• Strictly additive on entries (Invocation 1), strictly subtractive on candidates (Invocation 2).
• If ue-deps module graph is unavailable, skip the plugin-export filter and log a warning.