export function evalClass (ast: t.File, props = '', isRequire = false) {
  let mainClass!: t.ClassDeclaration
  const statements = new Set<t.ExpressionStatement>([
    template('Current.inst = this;')() as any
  ])

  traverse(ast, {
    ClassDeclaration (path) {
      mainClass = path.node
    },
    /**
     * 目前 node 的版本支持不了 class-properties
     * 但 babel 又有 bug，某些情况竟然把转换后的 class-properties 编译到 super 之前
     * 不然用 babel.transformFromAst 就完事了
     * 现在只能自己实现这个 feature 的部分功能了，真 tm 麻烦
     * @TODO 有空再给他们提 PR 吧
     */
    ClassProperty (path) {
      const { key, value } = path.node
      statements.add(t.expressionStatement(t.assignmentExpression(
        '=',
        t.memberExpression(
          t.thisExpression(),
          key
        ),
        value
      )))
      path.remove()
    }
  })

  for (const method of mainClass.body.body) {
    // constructor 即便没有被定义也会被加上
    if (t.isClassMethod(method) && method.kind === 'constructor') {
      const index = method.body.body.findIndex(node => t.isSuper(node))
      method.body.body.push(
        t.expressionStatement(t.assignmentExpression(
          '=',
          t.memberExpression(
            t.thisExpression(),
            t.identifier('state')
          ),
          t.callExpression(t.memberExpression(t.thisExpression(), t.identifier('_createData')), [])
        ))
      )
      method.body.body.splice(index, 0, ...statements)
    }
  }

  let code = `function f() {};` +
    generate(t.classDeclaration(t.identifier('Test'), t.identifier('f'), mainClass.body, [])).code +
    ';' + `var classInst =  new Test(${props});classInst`

  code = internalFunction + code

  // tslint:disable-next-line
  return eval(code)
}

 ast.program.body.forEach((node, index, body) => {
   if (node === statementPath.node) {
     body.splice(index + 1, 0, t.expressionStatement(
       t.callExpression(t.identifier('setStore'), [
         t.identifier(storeName)
       ])
     ))
   }
 })

function transformLoop (
  name: string,
  attr: NodePath<t.JSXAttribute>,
  jsx: NodePath<t.JSXElement>,
  value: AttrValue
) {
  if (name !== WX_FOR) {
    return
  }
  if (!value || !t.isJSXExpressionContainer(value)) {
    throw new Error('wx:for 的值必须使用 "{{}}"  包裹')
  }
  attr.remove()
  let item = t.stringLiteral('item')
  let index = t.stringLiteral('index')
  jsx
    .get('openingElement')
    .get('attributes')
    .forEach(p => {
      const node = p.node
      if (node.name.name === WX_FOR_ITEM) {
        if (!node.value || !t.isStringLiteral(node.value)) {
          throw new Error(WX_FOR_ITEM + ' 的值必须是一个字符串')
        }
        item = node.value
        p.remove()
      }
      if (node.name.name === WX_FOR_INDEX) {
        if (!node.value || !t.isStringLiteral(node.value)) {
          throw new Error(WX_FOR_INDEX + ' 的值必须是一个字符串')
        }
        index = node.value
        p.remove()
      }
      if (node.name.name === WX_KEY) {
        p.get('name').replaceWith(t.jSXIdentifier('key'))
      }
    })

  const replacement = t.jSXExpressionContainer(
    t.callExpression(
      t.memberExpression(value.expression, t.identifier('map')),
      [
        t.arrowFunctionExpression(
          [t.identifier(item.value), t.identifier(index.value)],
          t.blockStatement([t.returnStatement(jsx.node)])
        )
      ]
    )
  )

  const block = buildBlockElement()
  block.children = [replacement]
  jsx.replaceWith(block)
}

export function templateLiterals (path, state) {

  let nodes: Array<Object> = []

  const expressions = path.get('expressions')

  for (const elem of (path.node.quasis)) {
    nodes.push(t.stringLiteral(elem.value.cooked))

    const expr = expressions.shift()
    if (expr) {
      // tslint:disable-next-line:no-multi-spaces
      if (state.opts.spec && !expr.isBaseType('string') && !expr.isBaseType('number'))  {
        nodes.push(t.callExpression(t.identifier('String'), [expr.node]))
      } else {
        nodes.push(expr.node)
      }
    }
  }

  // filter out empty string literals
  nodes = nodes.filter((n) => !t.isLiteral(n, { value: '' }))

  // since `+` is left-to-right associative
  // ensure the first node is a string if first/second isn't
  if (!isString(nodes[0]) && !isString(nodes[1])) {
    nodes.unshift(t.stringLiteral(''))
  }

  if (nodes.length > 1) {
    let root = buildBinaryExpression(nodes.shift(), nodes.shift())

    for (const node of nodes) {
      root = buildBinaryExpression(root, node)
    }

    path.replaceWith(root)
  } else {
    path.replaceWith(nodes[0])
  }
}

 /**
  * Extends dynamic import statements to extract the explicitly namespace
  * export for the imported module.
  *
  * Before:
  *     import('./module-a.js')
  *         .then((moduleA) => moduleA.doSomething());
  *
  * After:
  *     import('./bundle_1.js')
  *         .then(({$moduleA}) => $moduleA)
  *         .then((moduleA) => moduleA.doSomething());
  */
 private _rewriteDynamicImport(
     baseUrl: ResolvedUrl,
     root: babel.Node,
     importNodePath: NodePath) {
   if (!importNodePath) {
     return;
   }
   const importCallExpression = importNodePath.parent;
   if (!importCallExpression ||
       !babel.isCallExpression(importCallExpression)) {
     return;
   }
   const importCallArgument = importCallExpression.arguments[0];
   if (!babel.isStringLiteral(importCallArgument)) {
     return;
   }
   const sourceUrl = importCallArgument.value;
   const resolvedSourceUrl = this.bundler.analyzer.urlResolver.resolve(
       baseUrl, sourceUrl as FileRelativeUrl);
   if (!resolvedSourceUrl) {
     return;
   }
   const sourceBundle = this.manifest.getBundleForFile(resolvedSourceUrl);
   // TODO(usergenic): To support *skipping* the rewrite, we need a way to
   // identify whether a bundle contains a single top-level module or is a
   // merged bundle with multiple top-level modules.
   let exportName;
   if (sourceBundle) {
     exportName =
         getOrSetBundleModuleExportName(sourceBundle, resolvedSourceUrl, '*');
   }
   // If there's no source bundle or the namespace export name of the bundle
   // is just '*', then we don't need to append a .then() to transform the
   // return value of the import().  Lets just rewrite the URL to be a relative
   // path and exit.
   if (!sourceBundle || exportName === '*') {
     const relativeSourceUrl =
         ensureLeadingDot(this.bundler.analyzer.urlResolver.relative(
             baseUrl, resolvedSourceUrl));
     importCallArgument.value = relativeSourceUrl;
     return;
   }
   // Rewrite the URL to be a relative path to the bundle.
   const relativeSourceUrl = ensureLeadingDot(
       this.bundler.analyzer.urlResolver.relative(baseUrl, sourceBundle.url));
   importCallArgument.value = relativeSourceUrl;
   const importCallExpressionParent = importNodePath.parentPath.parent!;
   if (!importCallExpressionParent) {
     return;
   }
   const thenifiedCallExpression = babel.callExpression(
       babel.memberExpression(
           clone(importCallExpression), babel.identifier('then')),
       [babel.arrowFunctionExpression(
           [
             babel.objectPattern(
                 [babel.objectProperty(
                      babel.identifier(exportName),
                      babel.identifier(exportName),
                      undefined,
                      true) as any]),
           ],
           babel.identifier(exportName))]);
   rewriteObject(importCallExpression, thenifiedCallExpression);
 }

//.........这里部分代码省略.........
        }
      }
    },
    ClassExpression (path) {
      mainClass = path as any
    },
    ClassMethod (path) {
      if (t.isIdentifier(path.node.key) && path.node.key.name === 'render') {
        renderMethod = path
      }
    },
    IfStatement (path) {
      const consequent = path.get('consequent')
      if (!consequent.isBlockStatement()) {
        consequent.replaceWith(
          t.blockStatement([
            consequent.node as any
          ])
        )
      }
    },
    CallExpression (path) {
      const callee = path.get('callee')
      if (isContainJSXElement(path)) {
        return
      }
      if (callee.isReferencedMemberExpression()) {
        const id = findFirstIdentifierFromMemberExpression(callee.node)
        const calleeIds = getIdsFromMemberProps(callee.node)
        if (t.isIdentifier(id) && id.name.startsWith('on') && Adapters.alipay !== Adapter.type) {
          const fullPath = buildFullPathThisPropsRef(id, calleeIds, path)
          if (fullPath) {
            path.replaceWith(
              t.callExpression(
                fullPath,
                path.node.arguments
              )
            )
          }
        }
      }

      if (callee.isReferencedIdentifier()) {
        const id = callee.node
        const ids = [id.name]
        if (t.isIdentifier(id) && id.name.startsWith('on')) {
          const fullPath = buildFullPathThisPropsRef(id, ids, path)
          if (fullPath) {
            path.replaceWith(
              t.callExpression(
                fullPath,
                path.node.arguments
              )
            )
          }
        }
      }
    },
    // JSXIdentifier (path) {
    //   const parentPath = path.parentPath
    //   if (!parentPath.isJSXAttribute()) {
    //     return
    //   }
    //   const element = parentPath.parentPath
    //   if (!element.isJSXOpeningElement()) {
    //     return

//.........这里部分代码省略.........
        const superClass = declaration.superClass
        if (superClass) {
          let hasCreateData = false
          astPath.traverse({
            ClassMethod (astPath) {
              if (astPath.get('key').isIdentifier({ name: '_createData' })) {
                hasCreateData = true
              }
            }
          })
          if (hasCreateData) {
            needExportDefault = true
            if (declaration.id === null) {
              componentClassName = '_TaroComponentClass'
            } else if (declaration.id.name === 'App') {
              componentClassName = '_App'
            } else {
              componentClassName = declaration.id.name
            }
            const isClassDcl = declaration.type === 'ClassDeclaration'
            const classDclProps = [t.identifier(componentClassName), superClass, declaration.body, declaration.decorators || []]
            astPath.replaceWith(isClassDcl ? t.classDeclaration.apply(null, classDclProps) : t.classExpression.apply(null, classDclProps))
          }
        }
      } else if (declaration.type === 'CallExpression') {
        const callee = declaration.callee
        if (callee && callee.type === 'CallExpression') {
          const subCallee = callee.callee
          if (subCallee.type === 'Identifier' && subCallee.name === taroJsReduxConnect) {
            const args = declaration.arguments as t.Identifier[]
            if (args.length === 1 && args[0].name === componentClassName) {
              needExportDefault = true
              exportTaroReduxConnected = `${componentClassName}__Connected`
              astPath.replaceWith(t.variableDeclaration('const', [t.variableDeclarator(t.identifier(`${componentClassName}__Connected`), t.callExpression(declaration.callee as t.Expression, declaration.arguments as Array<t.Expression | t.SpreadElement>))]))
            }
          }
        }
      } else if (declaration.type === 'Identifier') {
        const name = declaration.name
        if (name === componentClassName || name === exportTaroReduxConnected) {
          needExportDefault = true
          astPath.remove()
        }
      }
    },

    ExportNamedDeclaration (astPath) {
      const node = astPath.node
      const source = node.source
      if (source && source.type === 'StringLiteral') {
        const value = source.value
        analyzeImportUrl({ astPath, value, sourceFilePath, filePath, styleFiles, scriptFiles, jsonFiles, mediaFiles })
      }
    },

    ExportAllDeclaration (astPath) {
      const node = astPath.node
      const source = node.source
      if (source && source.type === 'StringLiteral') {
        const value = source.value
        analyzeImportUrl({ astPath, value, sourceFilePath, filePath, styleFiles, scriptFiles, jsonFiles, mediaFiles })
      }
    },

    Program: {
      exit (astPath) {

function transformLoop (
  name: string,
  attr: NodePath<t.JSXAttribute>,
  jsx: NodePath<t.JSXElement>,
  value: AttrValue
) {
  const jsxElement = jsx.get('openingElement')
  if (!jsxElement.node) {
    return
  }
  const attrs = jsxElement.get('attributes').map(a => a.node)
  const wxForItem = attrs.find(a => a.name.name === WX_FOR_ITEM)
  const hasSinglewxForItem = wxForItem && wxForItem.value && t.isJSXExpressionContainer(wxForItem.value)
  if (hasSinglewxForItem || name === WX_FOR || name === 'wx:for-items') {
    if (!value || !t.isJSXExpressionContainer(value)) {
      throw new Error('wx:for 的值必须使用 "{{}}"  包裹')
    }
    attr.remove()
    let item = t.stringLiteral('item')
    let index = t.stringLiteral('index')
    jsx
      .get('openingElement')
      .get('attributes')
      .forEach(p => {
        const node = p.node
        if (node.name.name === WX_FOR_ITEM) {
          if (!node.value || !t.isStringLiteral(node.value)) {
            throw new Error(WX_FOR_ITEM + ' 的值必须是一个字符串')
          }
          item = node.value
          p.remove()
        }
        if (node.name.name === WX_FOR_INDEX) {
          if (!node.value || !t.isStringLiteral(node.value)) {
            throw new Error(WX_FOR_INDEX + ' 的值必须是一个字符串')
          }
          index = node.value
          p.remove()
        }
      })

    const replacement = t.jSXExpressionContainer(
      t.callExpression(
        t.memberExpression(value.expression, t.identifier('map')),
        [
          t.arrowFunctionExpression(
            [t.identifier(item.value), t.identifier(index.value)],
            t.blockStatement([t.returnStatement(jsx.node)])
          )
        ]
      )
    )

    const block = buildBlockElement()
    block.children = [replacement]
    try {
      jsx.replaceWith(block)
    } catch (error) {
      //
    }

    return {
      item: item.value,
      index: index.value
    }
  }
}

//.........这里部分代码省略.........
        const body = prop.get('body')
        if (hasArguments) {
          return t.classMethod('method', t.identifier(name), params, body.node)
        }
        return t.classProperty(
          t.identifier(name),
          t.arrowFunctionExpression(params, body.node, isAsync)
        )
      }

      if (hasArguments && (value.isFunctionExpression() || value.isArrowFunctionExpression())) {
        const method = t.classMethod('method', t.identifier(name), params, value.node.body as any)
        method.async = isAsync
        return method
      }

      const classProp = t.classProperty(
        t.identifier(name),
        value.isFunctionExpression() || value.isArrowFunctionExpression()
          ? t.arrowFunctionExpression(value.node.params, value.node.body, isAsync)
          : value.node
      ) as any

      if (staticProps.includes(name)) {
        classProp.static = true
      }

      return classProp
    })

    if (globals.hasCatchTrue) {
      classBody.push(t.classMethod('method', t.identifier('privateStopNoop'), [t.identifier('e')], t.blockStatement([
        t.expressionStatement(
          t.callExpression(
            t.memberExpression(t.identifier('e'), t.identifier('stopPropagation')),
            []
          )
        )
      ])))
    }

    if (defaultProps.length) {
      let classProp = t.classProperty(t.identifier('defaultProps'), t.objectExpression(
        defaultProps.map(p => t.objectProperty(t.identifier(p.name), p.value))
      )) as any
      classProp.static = true
      classBody.unshift(classProp)
    }
  } else if (arg.isIdentifier()) {
    weappConf = arg.node.name
  } else {
    throw codeFrameError(arg.node, `${componentType || '组件'} 的第一个参数必须是一个对象或变量才能转换。`)
  }

  if (json && t.isObjectExpression(json)) {
    classBody.push(t.classProperty(t.identifier('config'), json))
  }

  if (componentType === 'App') {
    let hasWillMount = false
    const globalData = template(`this.$app.globalData = this.globalData`)()
    for (const method of classBody) {
      if (!method) {
        continue
      }
      if (!t.isClassMethod(method)) {

const buildDecorator = (type: string, id?: string) => id ? t.decorator(
  t.callExpression(t.identifier('withWeapp'), [t.stringLiteral(type), t.identifier(id)])
) : t.decorator(
  t.callExpression(t.identifier('withWeapp'), [t.stringLiteral(type)])
)