From 3dce1533fd123cde9e09ba1a435f176f5d34e034 Mon Sep 17 00:00:00 2001
From: LongYinan <lynweklm@gmail.com>
Date: Tue, 24 Jun 2025 16:31:26 +0800
Subject: [PATCH] test(napi): add fixture for re-export complex class (#2733)

---
 .cargo/config.toml                            |   7 +-
 .github/workflows/test-release.yaml           |   2 +-
 examples/napi-shared/src/lib.rs               |  69 ++++++++++++++++++
 .../__tests__/__snapshots__/values.spec.ts.md |  11 +++
 .../__snapshots__/values.spec.ts.snap         | Bin 6907 -> 6977 bytes
 examples/napi/__tests__/values.spec.ts        |  43 +++++++++++
 examples/napi/example.wasi-browser.js         |   1 +
 examples/napi/example.wasi.cjs                |   1 +
 examples/napi/index.cjs                       |   1 +
 examples/napi/index.d.cts                     |  11 +++
 examples/napi/src/lib.rs                      |   1 +
 11 files changed, 145 insertions(+), 2 deletions(-)

diff --git a/.cargo/config.toml b/.cargo/config.toml
index 969c2747..1a562eb6 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -3,4 +3,9 @@
 # https://github.com/rust-lang/rust/issues/134820
 # pthread_key_create() destructors and segfault after a DSO unloading
 [target.'cfg(any(all(target_env = "gnu", not(target_os = "windows")), target_os = "freebsd"))']
-rustflags = ["-C", "link-args=-Wl,-z,nodelete"]
+rustflags = [
+  "-C",
+  "link-args=-Wl,--warn-unresolved-symbols",
+  "-C",
+  "link-args=-Wl,-z,nodelete",
+]
diff --git a/.github/workflows/test-release.yaml b/.github/workflows/test-release.yaml
index 2ccf73f1..bc8f1540 100644
--- a/.github/workflows/test-release.yaml
+++ b/.github/workflows/test-release.yaml
@@ -91,7 +91,7 @@ jobs:
               yarn test:cli
               yarn test
               yarn tsc -p examples/napi/tsconfig.json --noEmit --skipLibCheck
-              yarn test:macro
+              RUSTFLAGS="-C link-args=-Wl,-undefined,dynamic_lookup,-no_fixup_chains" yarn test:macro
             toolchain: stable
           - host: windows-latest
             target: x86_64-pc-windows-msvc
diff --git a/examples/napi-shared/src/lib.rs b/examples/napi-shared/src/lib.rs
index ef4b2251..788218ab 100644
--- a/examples/napi-shared/src/lib.rs
+++ b/examples/napi-shared/src/lib.rs
@@ -1,6 +1,75 @@
+use napi::{bindgen_prelude::ClassInstance, Either};
 use napi_derive::napi;
 
 #[napi(object)]
 pub struct Shared {
   pub value: u32,
 }
+
+// Test fixture for GitHub issue #2722: Complex struct with constructor and multiple methods
+#[napi]
+pub struct ComplexClass {
+  pub value: String,
+  pub number: i32,
+}
+
+impl From<(String, i32)> for ComplexClass {
+  fn from(value: (String, i32)) -> Self {
+    ComplexClass {
+      value: value.0,
+      number: value.1,
+    }
+  }
+}
+
+impl<'env> From<Either<ClassInstance<'env, ComplexClass>, String>> for ComplexClass {
+  fn from(value: Either<ClassInstance<'env, ComplexClass>, String>) -> Self {
+    match value {
+      Either::A(instance) => ComplexClass {
+        value: (&*instance).value.clone(),
+        number: instance.number,
+      },
+      Either::B(value) => ComplexClass { value, number: 0 },
+    }
+  }
+}
+
+#[napi]
+impl ComplexClass {
+  #[napi(constructor)]
+  pub fn new(value: Either<String, ClassInstance<ComplexClass>>, number: i32) -> Self {
+    let value_str = match value {
+      Either::A(s) => s,
+      Either::B(instance) => format!("cloned:{}", (&*instance).value),
+    };
+    ComplexClass {
+      value: value_str,
+      number,
+    }
+  }
+
+  #[napi]
+  pub fn method_one(&self) -> String {
+    format!("method_one: {}", self.value)
+  }
+
+  #[napi]
+  pub fn method_two(&self) -> i32 {
+    self.number * 2
+  }
+
+  #[napi]
+  pub fn method_three(&self) -> String {
+    format!("method_three: {} - {}", self.value, self.number)
+  }
+
+  #[napi]
+  pub fn method_four(&self) -> bool {
+    self.number > 0
+  }
+
+  #[napi]
+  pub fn method_five(&self) -> String {
+    self.value.to_uppercase()
+  }
+}
diff --git a/examples/napi/__tests__/__snapshots__/values.spec.ts.md b/examples/napi/__tests__/__snapshots__/values.spec.ts.md
index 249eb8a9..7328dfae 100644
--- a/examples/napi/__tests__/__snapshots__/values.spec.ts.md
+++ b/examples/napi/__tests__/__snapshots__/values.spec.ts.md
@@ -1050,6 +1050,17 @@ Generated by [AVA](https://avajs.dev).
       export function xxh128(input: Buffer): bigint␊
       export function xxh3_64(input: Buffer): bigint␊
     }␊
+    export declare class ComplexClass {␊
+      value: string␊
+      number: number␊
+      constructor(value: string | ComplexClass, number: number)␊
+      methodOne(): string␊
+      methodTwo(): number␊
+      methodThree(): string␊
+      methodFour(): boolean␊
+      methodFive(): string␊
+    }␊
+    ␊
     export interface Shared {␊
       value: number␊
     }␊
diff --git a/examples/napi/__tests__/__snapshots__/values.spec.ts.snap b/examples/napi/__tests__/__snapshots__/values.spec.ts.snap
index b79a6336ced363b106d60dfb69dce6a4e0a0471d..d5127807400bac49b70ae103bb78edcc86d12af6 100644
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diff --git a/examples/napi/__tests__/values.spec.ts b/examples/napi/__tests__/values.spec.ts
index ccae19ca..68d97510 100644
--- a/examples/napi/__tests__/values.spec.ts
+++ b/examples/napi/__tests__/values.spec.ts
@@ -243,6 +243,7 @@ import {
   JSOnlyMethodsClass,
   RustOnlyMethodsClass,
   OriginalRustNameForJsNamedStruct,
+  ComplexClass,
 } from '../index.cjs'
 // import other stuff in `#[napi(module_exports)]`
 import nativeAddon from '../index.cjs'
@@ -1841,3 +1842,45 @@ test('escapable handle scope', (t) => {
     shorterEscapableScope(makeIterFunction())
   })
 })
+
+test('complex class with multiple methods - issue #2722', (t) => {
+  // Test creating instance of re-exported class with constructor (Either<String, ClassInstance<ComplexClass>>)
+  t.notThrows(() => {
+    const complex = new ComplexClass('test_value', 42)
+
+    // Test that constructor worked
+    t.is(complex.value, 'test_value')
+    t.is(complex.number, 42)
+
+    // Test all methods work
+    t.is(complex.methodOne(), 'method_one: test_value')
+    t.is(complex.methodTwo(), 84)
+    t.is(complex.methodThree(), 'method_three: test_value - 42')
+    t.is(complex.methodFour(), true)
+    t.is(complex.methodFive(), 'TEST_VALUE')
+  })
+
+  // Test with Either::B variant (ClassInstance instead of string)
+  t.notThrows(() => {
+    const original = new ComplexClass('original', 100)
+    const complex2 = new ComplexClass(original, -10)
+    t.is(complex2.value, 'cloned:original') // Should clone the value
+    t.is(complex2.methodFour(), false)
+  })
+
+  // Test that we can create multiple instances (stress test with Either)
+  t.notThrows(() => {
+    const baseInstance = new ComplexClass('base', 999)
+    for (let i = 0; i < 10; i++) {
+      // Alternate between string and ClassInstance for Either parameter
+      const instance =
+        i % 2 === 0
+          ? new ComplexClass(`test${i}`, i)
+          : new ComplexClass(baseInstance, i)
+
+      const expectedValue = i % 2 === 0 ? `test${i}` : 'cloned:base'
+      t.is(instance.value, expectedValue)
+      t.is(instance.number, i)
+    }
+  })
+})
diff --git a/examples/napi/example.wasi-browser.js b/examples/napi/example.wasi-browser.js
index 034e4c29..94fcfaee 100644
--- a/examples/napi/example.wasi-browser.js
+++ b/examples/napi/example.wasi-browser.js
@@ -365,3 +365,4 @@ export const withoutAbortController = __napiModule.exports.withoutAbortControlle
 export const xxh64Alias = __napiModule.exports.xxh64Alias
 export const xxh2 = __napiModule.exports.xxh2
 export const xxh3 = __napiModule.exports.xxh3
+export const ComplexClass = __napiModule.exports.ComplexClass
diff --git a/examples/napi/example.wasi.cjs b/examples/napi/example.wasi.cjs
index b4f0b65f..17277f68 100644
--- a/examples/napi/example.wasi.cjs
+++ b/examples/napi/example.wasi.cjs
@@ -389,3 +389,4 @@ module.exports.withoutAbortController = __napiModule.exports.withoutAbortControl
 module.exports.xxh64Alias = __napiModule.exports.xxh64Alias
 module.exports.xxh2 = __napiModule.exports.xxh2
 module.exports.xxh3 = __napiModule.exports.xxh3
+module.exports.ComplexClass = __napiModule.exports.ComplexClass
diff --git a/examples/napi/index.cjs b/examples/napi/index.cjs
index 0d35d555..f256a085 100644
--- a/examples/napi/index.cjs
+++ b/examples/napi/index.cjs
@@ -680,3 +680,4 @@ module.exports.withoutAbortController = nativeBinding.withoutAbortController
 module.exports.xxh64Alias = nativeBinding.xxh64Alias
 module.exports.xxh2 = nativeBinding.xxh2
 module.exports.xxh3 = nativeBinding.xxh3
+module.exports.ComplexClass = nativeBinding.ComplexClass
diff --git a/examples/napi/index.d.cts b/examples/napi/index.d.cts
index 8d05b8d1..650c0a73 100644
--- a/examples/napi/index.d.cts
+++ b/examples/napi/index.d.cts
@@ -1012,6 +1012,17 @@ export declare namespace xxh3 {
   export function xxh128(input: Buffer): bigint
   export function xxh3_64(input: Buffer): bigint
 }
+export declare class ComplexClass {
+  value: string
+  number: number
+  constructor(value: string | ComplexClass, number: number)
+  methodOne(): string
+  methodTwo(): number
+  methodThree(): string
+  methodFour(): boolean
+  methodFive(): string
+}
+
 export interface Shared {
   value: number
 }
diff --git a/examples/napi/src/lib.rs b/examples/napi/src/lib.rs
index 9ce5cad7..b18a795b 100644
--- a/examples/napi/src/lib.rs
+++ b/examples/napi/src/lib.rs
@@ -8,6 +8,7 @@
 #[cfg(not(target_family = "wasm"))]
 use napi::bindgen_prelude::create_custom_tokio_runtime;
 use napi::bindgen_prelude::{JsObjectValue, Object, Result, Symbol};
+pub use napi_shared::*;
 
 #[macro_use]
 extern crate napi_derive;