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author | Fabio Berger <me@fabioberger.com> | 2018-05-10 02:36:28 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2018-05-10 02:36:28 +0800 |
commit | 209266dbed9d7d038c90c2da8d9b99acab77c80c (patch) | |
tree | cfefd5ab15bc237716b15687629e0f41362a8e86 /packages/0x.js/src/utils/decorators.ts | |
parent | 69a6166b6a1d39afc24b8dd950ec5d8539a03420 (diff) | |
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Split 0x.js into contract-wrappers, order-watcher but keep 0x.js as a unifying library with the same interface
Diffstat (limited to 'packages/0x.js/src/utils/decorators.ts')
-rw-r--r-- | packages/0x.js/src/utils/decorators.ts | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/packages/0x.js/src/utils/decorators.ts b/packages/0x.js/src/utils/decorators.ts deleted file mode 100644 index f774d734e..000000000 --- a/packages/0x.js/src/utils/decorators.ts +++ /dev/null @@ -1,91 +0,0 @@ -import * as _ from 'lodash'; - -import { AsyncMethod, SyncMethod, ZeroExError } from '../types'; - -import { constants } from './constants'; - -type ErrorTransformer = (err: Error) => Error; - -const contractCallErrorTransformer = (error: Error) => { - if (_.includes(error.message, constants.INVALID_JUMP_PATTERN)) { - return new Error(ZeroExError.InvalidJump); - } - if (_.includes(error.message, constants.OUT_OF_GAS_PATTERN)) { - return new Error(ZeroExError.OutOfGas); - } - return error; -}; - -const schemaErrorTransformer = (error: Error) => { - if (_.includes(error.message, constants.INVALID_TAKER_FORMAT)) { - const errMsg = - 'Order taker must be of type string. If you want anyone to be able to fill an order - pass ZeroEx.NULL_ADDRESS'; - return new Error(errMsg); - } - return error; -}; - -/** - * Source: https://stackoverflow.com/a/29837695/3546986 - */ -const asyncErrorHandlerFactory = (errorTransformer: ErrorTransformer) => { - const asyncErrorHandlingDecorator = ( - target: object, - key: string | symbol, - descriptor: TypedPropertyDescriptor<AsyncMethod>, - ) => { - const originalMethod = descriptor.value as AsyncMethod; - - // Do not use arrow syntax here. Use a function expression in - // order to use the correct value of `this` in this method - // tslint:disable-next-line:only-arrow-functions - descriptor.value = async function(...args: any[]) { - try { - const result = await originalMethod.apply(this, args); - return result; - } catch (error) { - const transformedError = errorTransformer(error); - throw transformedError; - } - }; - - return descriptor; - }; - - return asyncErrorHandlingDecorator; -}; - -const syncErrorHandlerFactory = (errorTransformer: ErrorTransformer) => { - const syncErrorHandlingDecorator = ( - target: object, - key: string | symbol, - descriptor: TypedPropertyDescriptor<SyncMethod>, - ) => { - const originalMethod = descriptor.value as SyncMethod; - - // Do not use arrow syntax here. Use a function expression in - // order to use the correct value of `this` in this method - // tslint:disable-next-line:only-arrow-functions - descriptor.value = function(...args: any[]) { - try { - const result = originalMethod.apply(this, args); - return result; - } catch (error) { - const transformedError = errorTransformer(error); - throw transformedError; - } - }; - - return descriptor; - }; - - return syncErrorHandlingDecorator; -}; - -// _.flow(f, g) = f ∘ g -const zeroExErrorTransformer = _.flow(schemaErrorTransformer, contractCallErrorTransformer); - -export const decorators = { - asyncZeroExErrorHandler: asyncErrorHandlerFactory(zeroExErrorTransformer), - syncZeroExErrorHandler: syncErrorHandlerFactory(zeroExErrorTransformer), -}; |