Vetur: Intellisense doesn't work inside SFC using TS and Vue 2.5

[Towerism]

• [ x] I have searched through existing issues
• [ x] I have read through docs at https://vuejs.github.io/vetur/
• [ x] I have read FAQ: https://github.com/vuejs/vetur/wiki/FAQ

Info

• Platform: Win
• Vetur version: 0.10.1
• VSCode version: 1.17.2

Problem

Intellisense does not work inside single file component when using typescript with new Vue 2.5.

Reproducible Case

Create single file component with following content:

<script lang="ts">
export default {
    data() {
        return {
            msg: 'default message'
        }
    },
    methods: {
        getMsg() {
            return this.;
        }
    }
}
</script>

this. does not have any intellisense.

[octref]

What's your dependencies version?

[octref]

NVM found the issue. Likely something changed in TS upstream. I'll look into it later.

[HerringtonDarkholme]

I cannot reproduce this. @Towerism are you creating a new vue file outside a project, as a standalone file?

[RichiCoder1]

I don't have specific steps, but I can second this. Occasionally TS intellisense in SFC will just break.

[Towerism]

I am creating the file in my project. If I don't use lang="ts" then I get autocomplete. Here is my tsconfig:

{
    "compilerOptions": {
        "allowSyntheticDefaultImports": true,
        "module": "es2015",
        "moduleResolution": "node",
        "target": "es5",
        "lib": ["dom", "es5", "scripthost", "es2017"],
        "allowJs": true,
        "noImplicitAny": false,
        "removeComments": true,
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true,
        "preserveConstEnums": true,
        "sourceMap": true,
        "typeRoots": [
            "./Scripts/app/types",
            "./node_modules/@types"
        ]
    },
    "include": [
        "Scripts/app/**/*"
    ],
    "exclude": [
        "node_modules"
    ],
    "lint": {
        "enable": true,
        "configFile": ".tslintrc.json"
    }
}

and my dependencies:

        "@types/jasmine": "^2.5.53",
        "@types/lodash": "^4.14.74",
        "@types/node": "^8.0.24",
        "@types/vue": "^2.0.0",
        "@types/vue-router": "^2.0.0",
        "ag-grid": "^13.2.0",
        "ag-grid-vue": "^13.2.0",
        "assets-webpack-plugin": "^3.5.1",
        "av-ts": "^0.9.1",
        "awesome-typescript-loader": "^3.2.3",
        "axios": "^0.16.2",
        "babel-loader": "^7.1.2",
        "babel-plugin-transform-runtime": "^6.23.0",
        "babel-polyfill": "^6.26.0",
        "babel-preset-env": "^1.6.0",
        "babel-preset-es2015": "^6.24.1",
        "babel-preset-es2016": "^6.24.1",
        "babel-preset-stage-2": "^6.24.1",
        "bootstrap": "4.0.0-alpha.6",
        "bootstrap-vue": "^1.0.0-beta.9",
        "child_process": "^1.0.2",
        "circular-dependency-plugin": "^4.2.0",
        "clean-webpack-plugin": "^0.1.16",
        "cross-env": "^5.0.5",
        "crypto": "^1.0.1",
        "css-loader": "^0.28.4",
        "custom-tslint-formatters": "^2.1.1",
        "es6-promise": "^4.1.1",
        "eslint": "^4.4.1",
        "eslint-plugin-jasmine": "^2.8.4",
        "eslint-plugin-vue": "beta",
        "exports-loader": "^0.6.4",
        "extract-text-webpack-plugin": "^3.0.0",
        "file-loader": "^0.11.2",
        "font-awesome": "^4.7.0",
        "friendly-errors-webpack-plugin": "^1.6.1",
        "fs": "^0.0.1-security",
        "gulp": "gulpjs/gulp#4.0",
        "gulp-sourcemaps": "^2.6.0",
        "gulp-util": "^3.0.8",
        "hard-source-webpack-plugin": "^0.4.9",
        "html-webpack-harddisk-plugin": "^0.1.0",
        "html-webpack-plugin": "^2.30.1",
        "html-webpack-prefix-plugin": "^0.1.1",
        "imports-loader": "^0.7.1",
        "inject-loader": "^3.0.1",
        "inversify": "^4.3.0",
        "inversify-inject-decorators": "^3.0.1",
        "jasmine": "^2.7.0",
        "jwt-decode": "^2.2.0",
        "karma": "^1.7.0",
        "karma-babel-preprocessor": "^6.0.1",
        "karma-chrome-launcher": "^2.2.0",
        "karma-jasmine": "^1.1.0",
        "karma-phantomjs-launcher": "^1.0.4",
        "karma-phantomjs-shim": "^1.4.0",
        "karma-sourcemap-loader": "^0.3.7",
        "karma-spec-reporter": "^0.0.31",
        "karma-webpack": "^2.0.4",
        "less": "^2.7.2",
        "less-loader": "^4.0.5",
        "lodash": "^4.17.4",
        "lodash-decorators": "^4.4.1",
        "moment": "^2.18.1",
        "node-object-hash": "^1.3.0",
        "node-sass": "^4.5.3",
        "noty": "^3.1.2",
        "octicons": "^6.0.1",
        "optimize-css-assets-webpack-plugin": "^3.1.1",
        "querystring": "^0.2.0",
        "reflect-metadata": "^0.1.10",
        "rewire-webpack": "^1.0.1",
        "sass-loader": "^6.0.6",
        "style-loader": "^0.18.2",
        "text-mask-addons": "^3.6.0",
        "text-mask-core": "^5.0.1",
        "ts-loader": "^3.0.5",
        "tslint": "^5.7.0",
        "tslint-eslint-rules": "^4.1.1",
        "tslint-loader": "^3.5.3",
        "typemoq": "^2.0.1",
        "typescript": "^2.5.3",
        "url-loader": "^0.5.9",
        "vue": "^2.5.2",
        "vue-class-component": "^6.0.0",
        "vue-form": "^4.3.4",
        "vue-good-table": "^1.10.0",
        "vue-loader": "^13.3.0",
        "vue-notifications": "^0.8.0",
        "vue-property-decorator": "^6.0.0",
        "vue-router": "^3.0.1",
        "vue-template-compiler": "^2.5.2",
        "vue-top-progress": "^0.6.0",
        "vue-visible": "^1.0.2",
        "vuenit": "^1.1.1",
        "vuex": "^3.0.0",
        "vuex-router-sync": "^5.0.0",
        "webpack": "^3.5.4",
        "webpack-dev-server": "^2.7.1",
        "webpack-merge": "^4.1.0",
        "webpack-notifier": "^1.5.0",
        "whatwg-fetch": "^2.0.3",
        "yargs": "^8.0.2"

[HerringtonDarkholme]

https://vuejs.org/v2/guide/typescript.html#Recommended-Configuration

Note that you have to include strict: true (or at least noImplicitThis: true which is a part of strict flag) to leverage type checking of this in component methods otherwise it is always treated as any type.

[RichiCoder1]

I'll see if I can get reproduction details, but at least in my case the issue isn't that typescript intellisense is broken. It works perfectly (ish, but that's another issue). But then after a while, it'll just break and give nonsense intellisense like above.

[Towerism]

@HerringtonDarkholme Gotcha, thanks!

[HerringtonDarkholme]

@RichiCoder1 You probably encounter a problem listed in https://github.com/vuejs/vuejs.org/pull/1239