fix(es/transforms/typescript): Remove declared class properties (#2530)

swc_ecma_transforms_typescript:
 - `strip`: Remove class properties with `declare` keyword.

Cargo.lock

@@ -1141,9 +1141,9 @@ checksum = "9fbe11972c601a48aa12a0e2aa032e9e251655ce6c6836cac26e5c0b3b5a5dcc"
 
 [[package]]
 name = "napi-derive"
-version = "1.1.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e7ed160148f94ee17936f00288029cb0cfb37c08bbace9f514f735dcd869ed7"
+checksum = "4d57bc36513971ab3c60e5af84092662fb1b2fa686d0ef4aadab0d0fb6414bb9"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1531,9 +1531,9 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkg-config"
-version = "0.3.21"
+version = "0.3.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10e2fcbb64ecbe64c8e040a386c3104d384583af58b956d870aaaf229df6e66d"
+checksum = "12295df4f294471248581bc09bef3c38a5e46f1e36d6a37353621a0c6c357e1f"
 
 [[package]]
 name = "pmutil"
@@ -1548,9 +1548,9 @@ dependencies = [
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3ca011bd0129ff4ae15cd04c4eef202cadf6c51c21e47aba319b4e0501db741"
+checksum = "ed0cfbc8191465bed66e1718596ee0b0b35d5ee1f41c5df2189d0fe8bde535ba"
 
 [[package]]
 name = "precomputed-hash"
@@ -2984,7 +2984,7 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_typescript"
-version = "0.56.0"
+version = "0.56.1"
 dependencies = [
  "serde",
  "swc_atoms 0.2.9",

ecmascript/transforms/typescript/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 license = "Apache-2.0/MIT"
 name = "swc_ecma_transforms_typescript"
 repository = "https://github.com/swc-project/swc.git"
-version = "0.56.0"
+version = "0.56.1"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]

ecmascript/transforms/typescript/src/strip.rs

@@ -366,6 +366,7 @@ where
 
         class.body.retain(|c| match c {
             ClassMember::Constructor(Constructor { body: None, .. }) => false,
+            ClassMember::ClassProp(ClassProp { declare: true, .. }) => false,
             _ => true,
         });
 

ecmascript/transforms/typescript/tests/strip.rs

@@ -4140,6 +4140,42 @@ to!(
     "
 );
 
+test_with_config!(
+    deno_12532_declare_class_prop,
+    strip::Config {
+        use_define_for_class_fields: true,
+        no_empty_export: true,
+        ..Default::default()
+    },
+    "
+    export class Foo {
+        x: number;
+        constructor(x: number) {
+            this.x = x;
+        }
+    }
+    export class Bar extends Foo {
+        declare x: 123;
+        constructor() {
+            super(123);
+        }
+    }
+    ",
+    "
+    export class Foo {
+        x;
+        constructor(x){
+            this.x = x;
+        }
+    }
+    export class Bar extends Foo {
+        constructor() {
+            super(123);
+        }
+    }
+    "
+);
+
 #[testing::fixture("tests/fixture/**/input.ts")]
 #[testing::fixture("tests/fixture/**/input.tsx")]
 fn exec(input: PathBuf) {