1 files changed, 150 insertions, 0 deletions
diff --git a/node_modules/vue/src/server/bundle-renderer/create-bundle-runner.js b/node_modules/vue/src/server/bundle-renderer/create-bundle-runner.js
new file mode 100644
index 00000000..16c33c41
--- /dev/null
+++ b/node_modules/vue/src/server/bundle-renderer/create-bundle-runner.js
@@ -0,0 +1,150 @@
+import { isPlainObject } from 'shared/util'
+
+const vm = require('vm')
+const path = require('path')
+const resolve = require('resolve')
+const NativeModule = require('module')
+
+function createSandbox (context) {
+  const sandbox = {
+    Buffer,
+    console,
+    process,
+    setTimeout,
+    setInterval,
+    setImmediate,
+    clearTimeout,
+    clearInterval,
+    clearImmediate,
+    __VUE_SSR_CONTEXT__: context
+  }
+  sandbox.global = sandbox
+  return sandbox
+}
+
+function compileModule (files, basedir, runInNewContext) {
+  const compiledScripts = {}
+  const resolvedModules = {}
+
+  function getCompiledScript (filename) {
+    if (compiledScripts[filename]) {
+      return compiledScripts[filename]
+    }
+    const code = files[filename]
+    const wrapper = NativeModule.wrap(code)
+    const script = new vm.Script(wrapper, {
+      filename,
+      displayErrors: true
+    })
+    compiledScripts[filename] = script
+    return script
+  }
+
+  function evaluateModule (filename, sandbox, evaluatedFiles = {}) {
+    if (evaluatedFiles[filename]) {
+      return evaluatedFiles[filename]
+    }
+
+    const script = getCompiledScript(filename)
+    const compiledWrapper = runInNewContext === false
+      ? script.runInThisContext()
+      : script.runInNewContext(sandbox)
+    const m = { exports: {}}
+    const r = file => {
+      file = path.posix.join('.', file)
+      if (files[file]) {
+        return evaluateModule(file, sandbox, evaluatedFiles)
+      } else if (basedir) {
+        return require(
+          resolvedModules[file] ||
+          (resolvedModules[file] = resolve.sync(file, { basedir }))
+        )
+      } else {
+        return require(file)
+      }
+    }
+    compiledWrapper.call(m.exports, m.exports, r, m)
+
+    const res = Object.prototype.hasOwnProperty.call(m.exports, 'default')
+      ? m.exports.default
+      : m.exports
+    evaluatedFiles[filename] = res
+    return res
+  }
+  return evaluateModule
+}
+
+function deepClone (val) {
+  if (isPlainObject(val)) {
+    const res = {}
+    for (const key in val) {
+      res[key] = deepClone(val[key])
+    }
+    return res
+  } else if (Array.isArray(val)) {
+    return val.slice()
+  } else {
+    return val
+  }
+}
+
+export function createBundleRunner (entry, files, basedir, runInNewContext) {
+  const evaluate = compileModule(files, basedir, runInNewContext)
+  if (runInNewContext !== false && runInNewContext !== 'once') {
+    // new context mode: creates a fresh context and re-evaluate the bundle
+    // on each render. Ensures entire application state is fresh for each
+    // render, but incurs extra evaluation cost.
+    return (userContext = {}) => new Promise(resolve => {
+      userContext._registeredComponents = new Set()
+      const res = evaluate(entry, createSandbox(userContext))
+      resolve(typeof res === 'function' ? res(userContext) : res)
+    })
+  } else {
+    // direct mode: instead of re-evaluating the whole bundle on
+    // each render, it simply calls the exported function. This avoids the
+    // module evaluation costs but requires the source code to be structured
+    // slightly differently.
+    let runner // lazy creation so that errors can be caught by user
+    let initialContext
+    return (userContext = {}) => new Promise(resolve => {
+      if (!runner) {
+        const sandbox = runInNewContext === 'once'
+          ? createSandbox()
+          : global
+        // the initial context is only used for collecting possible non-component
+        // styles injected by vue-style-loader.
+        initialContext = sandbox.__VUE_SSR_CONTEXT__ = {}
+        runner = evaluate(entry, sandbox)
+        // On subsequent renders, __VUE_SSR_CONTEXT__ will not be available
+        // to prevent cross-request pollution.
+        delete sandbox.__VUE_SSR_CONTEXT__
+        if (typeof runner !== 'function') {
+          throw new Error(
+            'bundle export should be a function when using ' +
+            '{ runInNewContext: false }.'
+          )
+        }
+      }
+      userContext._registeredComponents = new Set()
+
+      // vue-style-loader styles imported outside of component lifecycle hooks
+      if (initialContext._styles) {
+        userContext._styles = deepClone(initialContext._styles)
+        // #6353 ensure "styles" is exposed even if no styles are injected
+        // in component lifecycles.
+        // the renderStyles fn is exposed by vue-style-loader >= 3.0.3
+        const renderStyles = initialContext._renderStyles
+        if (renderStyles) {
+          Object.defineProperty(userContext, 'styles', {
+            enumerable: true,
+            get () {
+              return renderStyles(userContext._styles)
+            }
+          })
+        }
+      }
+
+      resolve(runner(userContext))
+    })
+  }
+}