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Strip TypeScript class properties without value assigned (#956)

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Co-authored-by: 강동윤 <kdy1997.dev@gmail.com>
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LongYinan 2020-08-11 00:58:45 +08:00 committed by GitHub
parent dde9defbe4
commit 4ab3c58f6a
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4 changed files with 8 additions and 3 deletions
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2
ecmascript/transforms/Cargo.toml
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@ -1,6 +1,6 @@
[package] [package]
name = "swc_ecma_transforms" name = "swc_ecma_transforms"
version = "0.19.3" version = "0.19.4"
authors = ["강동윤 <kdy1997.dev@gmail.com>"] authors = ["강동윤 <kdy1997.dev@gmail.com>"]
license = "Apache-2.0/MIT" license = "Apache-2.0/MIT"
repository = "https://github.com/swc-project/swc.git" repository = "https://github.com/swc-project/swc.git"

4
ecmascript/transforms/src/compat/es2020/class_properties.rs
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@ -388,6 +388,8 @@ impl ClassProperties {
} }
}; };
let assigned_value = prop.value.is_some();
let value = prop.value.unwrap_or_else(|| undefined(prop_span)); let value = prop.value.unwrap_or_else(|| undefined(prop_span));
let value = if prop.is_static { let value = if prop.is_static {
value value
@ -427,7 +429,7 @@ impl ClassProperties {
} }
.into_stmt(), .into_stmt(),
); );
} else { } else if assigned_value {
constructor_exprs.push(Box::new(Expr::Assign(AssignExpr { constructor_exprs.push(Box::new(Expr::Assign(AssignExpr {
span: DUMMY_SP, span: DUMMY_SP,
left: (PatOrExpr::Expr(Box::new( left: (PatOrExpr::Expr(Box::new(

3
ecmascript/transforms/tests/typescript_strip.rs
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@ -762,6 +762,9 @@ test!(
"class A extends B { "class A extends B {
foo = 'foo' foo = 'foo'
b = this.a; b = this.a;
declare1
declare2!: string
constructor(private readonly a: string, readonly c, private d: number = 1) { constructor(private readonly a: string, readonly c, private d: number = 1) {
super() super()

2
package.json
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@ -1,6 +1,6 @@
{ {
"name": "@swc/core", "name": "@swc/core",
"version": "1.2.17", "version": "1.2.18",
"description": "Super-fast alternative for babel", "description": "Super-fast alternative for babel",
"main": "./index.js", "main": "./index.js",
"author": "강동윤 <kdy1997.dev@gmail.com>", "author": "강동윤 <kdy1997.dev@gmail.com>",