6a452b2dca
A案実装: debug_verify_phi_inputs呼び出し前にCFG predecessorを更新
修正箇所（7箇所）:
- src/mir/builder/phi.rs:50, 73, 132, 143
- src/mir/builder/ops.rs:273, 328, 351
根本原因:
- Branch/Jump命令でsuccessorは即座に更新
- predecessorはupdate_cfg()で遅延再構築
- PHI検証が先に実行されてpredecessor未更新でpanic
解決策:
- 各debug_verify_phi_inputs呼び出し前に
if let Some(func) = self.current_function.as_mut() {
func.update_cfg();
}
を挿入してCFGを同期
影響: if/else文、論理演算子(&&/||)のPHI生成が正常動作
64 lines
2.0 KiB
Plaintext
64 lines
2.0 KiB
Plaintext
// json_scan_guard.hako — JsonScanGuardBox
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// Responsibility: escape-aware JSON scanning with step budget (Fail-Fast)
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using "lang/src/shared/json/core/string_scan.hako" as StringScanBox
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static box JsonScanGuardBox {
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// Seek the end index (inclusive) of an object starting at `start` (must be '{').
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// Returns: end index or -1 on failure/budget exceeded.
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seek_obj_end(text, start, budget) {
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if text == null { return -1 }
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if start < 0 || start >= text.length() { return -1 }
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if text.substring(start, start+1) != "{" { return -1 }
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local n = text.length()
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local depth = 0
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local i = start
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local steps = 0
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loop (i < n) {
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if steps >= budget { return -1 }
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steps = steps + 1
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local ch = StringScanBox.read_char(text, i)
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if ch == "\\" { i = i + 2 continue }
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if ch == "\"" {
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// jump to end quote (escape-aware)
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local j = StringScanBox.find_quote(text, i+1)
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if j < 0 { return -1 }
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i = j + 1
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continue
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}
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if ch == "{" { depth = depth + 1 }
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if ch == "}" { depth = depth - 1 if depth == 0 { return i } }
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i = i + 1
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}
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return -1
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}
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// Seek the end index (inclusive) of an array starting at `start` (must be '[').
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// Returns: end index or -1 on failure/budget exceeded.
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seek_array_end(text, start, budget) {
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if text == null { return -1 }
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if start < 0 || start >= text.length() { return -1 }
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if text.substring(start, start+1) != "[" { return -1 }
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local n = text.length()
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local depth = 0
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local i = start
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local steps = 0
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loop (i < n) {
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if steps >= budget { return -1 }
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steps = steps + 1
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local ch = StringScanBox.read_char(text, i)
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if ch == "\\" { i = i + 2 continue }
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if ch == "\"" {
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local j = StringScanBox.find_quote(text, i+1)
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if j < 0 { return -1 }
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i = j + 1
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continue
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}
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if ch == "[" { depth = depth + 1 }
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if ch == "]" { depth = depth - 1 if depth == 0 { return i } }
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i = i + 1
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}
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return -1
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}
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}
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