40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
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// Phase 223-3 E2E Test: Pattern4 skip_whitespace minimal test
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//
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// Tests that LoopBodyLocal in continue condition can be promoted
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// and Pattern4 lowering continues successfully (no Fail-Fast).
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//
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// Pattern: Category A-3 (_skip_whitespace)
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// - Single LoopBodyLocal (ch) in continue condition
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// - Definition: local ch = s.substring(...)
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// - Condition: ch == " " || ch == "\t" || ch == "\n" || ch == "\r"
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// - Action: pos = pos + 1; continue
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//
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// Phase 223-3 Achievement:
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// - Previously: Fail-Fast with "[cf_loop/pattern4] Cannot promote LoopBodyLocal"
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// - Now: Promotion succeeds, Pattern4 lowering continues
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//
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// NOTE: Full correct execution (RC=2) requires Phase 172+ JoinIR Trim lowering.
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// This test verifies promotion works, not final execution correctness.
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static box SkipWhitespaceP4Test {
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main() {
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local s = " ab"
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local pos = 0
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local n = 4
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loop(pos < n) {
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local ch = s.substring(pos, pos + 1)
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if ch == " " || ch == "\t" || ch == "\n" || ch == "\r" {
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pos = pos + 1
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continue
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}
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break
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}
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// Phase 223-3: Promotion success allows lowering to proceed
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// Expected final value after Phase 172+: pos = 2
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print(pos)
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return pos
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}
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}
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