Brandon Lucas
bba94b534d
Add runtime counters tracking FBIP reuse vs copy operations: - lux_fbip_reuse_count: incremented when rc=1 allows in-place mutation - lux_fbip_copy_count: incremented when rc>1 forces allocation Output now shows both memory stats and FBIP stats: [RC] No leaks: 13 allocs, 13 frees [FBIP] 3 reuses, 0 copies Rename test_no_fbip.lux to test_ownership_transfer.lux to better reflect that ownership transfer enables FBIP even with aliases. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
22 lines
749 B
Plaintext
22 lines
749 B
Plaintext
// Test demonstrating ownership transfer with aliases
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// The ownership transfer optimization ensures FBIP still works
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// even when variables are aliased, because ownership is transferred
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// rather than reference count being incremented.
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fn main(): Unit = {
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Console.print("=== Ownership Transfer Test ===")
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let a = List.range(1, 100)
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// Ownership transfers from 'a' to 'alias', keeping rc=1
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let alias = a
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let len1 = List.length(alias)
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// Since ownership transferred, 'a' still has rc=1
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// FBIP can still optimize map/filter/reverse
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let b = List.map(a, fn(x: Int): Int => x * 2)
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let c = List.filter(b, fn(x: Int): Bool => x > 50)
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let d = List.reverse(c)
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Console.print("Ownership transfer chain done")
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}
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