Runtime leak tracker (blaise_arc.pas):
- Open-addressing hash map (1024 buckets, 16 bytes each) tracks every
live class instance; zero overhead when disabled.
- _LeakTrackerEnable() activates tracking and registers _LeakTrackerReport
via atexit; called from $main when --debug is passed.
- _LeakTrackerRegister(UserPtr, ClassName) inserts into the map; called
from codegen at every constructor site (both TFieldAccessExpr and
TMethodCallExpr paths).
- _ClassRelease unregisters on refcount-zero free via LTDelete.
- Report written to stderr lists count + class name of each survivor.
Compiler (--debug flag):
- New --debug CLI flag sets FDebugMode on TCodeGenQBE; emits
call $_LeakTrackerEnable() in EmitMainHeader after unit init calls,
and call $_LeakTrackerRegister(...) after every _ClassAlloc site.
- --debug-opdf remains independent (OPDF only, no leak tracking).
- SetDebugMode(Bool) added to TCodeGenQBE public API for e2e tests.
Pointer/PtrUInt cast pairs (semantic + codegen):
- Pointer(intOrPtrExpr) validated in AnalyseFuncCallExpr; accepts
integer, pointer, class, metaclass, procedural, and nil sources.
- PtrUInt(intOrPtrExpr) same validation; resolves to tyUInt64.
- Codegen: w-to-l widening uses extuw for Pointer/PChar targets
(zero-extend, not sign-extend) to preserve address semantics.
- Four new unit tests in cp.test.pointers.pas.
E2E test infrastructure:
- CompileAndRunWithRTLDebug added to TE2ETestCase base for in-process
debug-mode compilation without recursive overload ambiguity.
- cp.test.e2e.leakcheck.pas: 5 tests covering no-leak silence,
single leak, multiple leaks, reference cycles, and debug-off.
2258 tests pass; fixpoint verified.
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