35 lines
921 B
Plaintext
35 lines
921 B
Plaintext
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// GC Counting demo (VM path) — verifies CountingGc counters and barrier sites
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// Run:
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// ./target/release/nyash --backend vm examples/gc_counting_demo.nyash
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// Expect (with trace): [GC] counters: safepoints>0 read_barriers>=0 write_barriers>=0
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static box Main {
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main() {
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// Turn on Counting GC + trace via Box-First path
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local G
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G = new GcConfigBox()
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G = G.setFlag("counting", true)
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G = G.setFlag("trace", true)
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G.apply()
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// Make sure we don't engage JIT path for this demo (VM baseline)
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// If needed, you can set NYASH_JIT_EXEC=0 in the environment.
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// Perform some mutating ops to hit write barriers on the VM path
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local A, M
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A = new ArrayBox()
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A.push(1)
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A.set(0, 2)
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M = new MapBox()
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M.set("k", "v")
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// Simple read ops (should register read barriers on some implementations)
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print(A.length())
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print(M.size())
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return "done"
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}
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}
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