swc transpiler does not set strictMode to match tsconfig #1531
Description
Search Terms
swc
Expected Behavior
Running
function defaultHello () {
return ''
}
class X {
constructor(x) {
this.hello = () => (x.hello || defaultHello)()
}
}
console.log(new X({
hello () {
return this.y || 'this works'
}
}).hello())using
"ts-node": {
"transpileOnly": true,
"transpiler": "ts-node/transpilers/swc-experimental"
},will print
this works
(this is what is printed without using swc)
Actual Behavior
an error is printed:
/swctest/index.ts:13
return this.y || 'this works'
^
TypeError: Cannot read property 'y' of undefined
at hello (/swctest/index.ts:13:17)
at X.hello (/swctest/index.ts:7:50)
at Object.<anonymous> (/swctest/index.ts:15:4)
at Module._compile (internal/modules/cjs/loader.js:1063:30)
at Module.m._compile (/swctest/node_modules/ts-node/src/index.ts:1371:23)
at Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
at Object.require.extensions.<computed> [as .ts] (/swctest/node_modules/ts-node/src/index.ts:1374:12)
at Module.load (internal/modules/cjs/loader.js:928:32)
at Function.Module._load (internal/modules/cjs/loader.js:769:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
Specifications
ts-node v10.4.0
node v14.16.0
compiler v4.4.4
@swc/core 1.2.103
- tsconfig.json, if you're using one:
{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"strict": false,
"skipLibCheck": true },
"ts-node": {
"transpileOnly": true,
"transpiler": "ts-node/transpilers/swc-experimental"
},
}
- Operating system and version: MacOS 11.6