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fix: 异常兜底路径经 create_from_text 恢复错误类型(不塌缩普通 Error)
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@@ -65,6 +65,32 @@ pub fn create_error<H: VmHost>(host: &mut H, msg: &str) -> JsValue {
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create_kind_error(host, "Error", msg)
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}
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/// 从错误文本(形如 `TypeError: msg` / `ReferenceError: msg`)解析类型前缀并创建
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/// 对应 kind 的错误对象;无前缀时创建普通 Error。
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///
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/// # 使用场景
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/// 异常传播链中错误对象被降级为文本(error_text 输出、`last_uncaught_value` 被
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/// 嵌套覆盖后的兜底路径)时,据此恢复错误类型,避免全部塌缩成普通 Error。
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pub fn create_from_text<H: VmHost>(host: &mut H, text: &str) -> JsValue {
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let text = text.strip_prefix("uncaught ").unwrap_or(text);
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for (kind, prefix) in [
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("TypeError", "TypeError: "),
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("ReferenceError", "ReferenceError: "),
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("RangeError", "RangeError: "),
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("SyntaxError", "SyntaxError: "),
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("URIError", "URIError: "),
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("EvalError", "EvalError: "),
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] {
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if let Some(msg) = text.strip_prefix(prefix) {
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return create_kind_error(host, kind, msg);
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}
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}
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if let Some(msg) = text.strip_prefix("Error: ") {
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return create_kind_error(host, "Error", msg);
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}
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create_error(host, text)
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}
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/// 创建一个带指定 message 的 ReferenceError 对象。
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pub fn create_reference_error<H: VmHost>(host: &mut H, msg: &str) -> JsValue {
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create_kind_error(host, "ReferenceError", msg)
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