Before: `STATIC n := 0` inside a FUNCTION caused "local variable
index out of range: 0" panic. The gengo code generator only handled
module-level STATIC (file scope) but silently ignored function-level
STATIC declarations.
After: Function-level STATIC variables are emitted as Go package-level
vars with function-name prefixed names (e.g., `static_COUNTER_N`),
registered in staticVars map during function emission, and cleaned up
after the function to prevent name collisions.
Also fixes compound assignment (+=, -=, *=, /=) on STATIC variables,
which previously only handled simple assignment (:=).
FUNCTION Counter()
STATIC n := 0 // persists across calls
n++ // n++ already worked (postfix handler)
n += 10 // was broken, now works
RETURN n
Verified:
Counter() → 1, 2, 3 (n++)
CountA() → 10, 20, 30 (n += 10, separate scope)
CountB() → 101, 102, 103 (n += 1, init 100, separate scope)
go test ./... 14 packages OK
FiveSql2 43/43 100%
compat_harbour 51/51
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
CharlesKWON
5bfdc476ef