Fix typescript config

package.json

@@ -12,10 +12,10 @@
   "author": "kaorun343",
   "license": "MIT",
   "directories": {
-    "test": "test"
+    "tests": "tests"
   },
   "scripts": {
-    "build": "tsc --declaration src/vue-property-decorator.ts --outDir lib && rollup -c",
+    "build": "tsc -p ./src/tsconfig.json && rollup -c",
     "test": "jest"
   },
   "files": [
@@ -27,9 +27,7 @@
     "jest": "^24.8.0",
     "reflect-metadata": "^0.1.13",
     "rollup": "^1.15.6",
-    "rollup-plugin-commonjs": "^10.0.0",
     "ts-jest": "^24.0.2",
-    "tslib": "^1.10.0",
     "typescript": "^3.5.2"
   },
   "typings": "./lib/vue-property-decorator.d.ts",

src/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "declaration": true /* Generates corresponding '.d.ts' file. */,
+    "outDir": "../lib" /* Redirect output structure to the directory. */,
+    "rootDir": "./" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+  }
+}

tsconfig.json

@@ -3,7 +3,7 @@
     /* Basic Options */
     // "incremental": true,                   /* Enable incremental compilation */
     "target": "ES5" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
-    "module": "es2015" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
+    "module": "ES2015" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "lib": [
       "dom",
       "es2015",
@@ -13,7 +13,7 @@
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
     // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    "declaration": true /* Generates corresponding '.d.ts' file. */,
+    // "declaration": true /* Generates corresponding '.d.ts' file. */,
     // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
     // "sourceMap": true,                     /* Generates corresponding '.map' file. */
     // "outFile": "./",                       /* Concatenate and emit output to single file. */