@zakijs/plugin-compiler-alipay
Version:
mor complier plugin for alipay mini program
101 lines • 5.35 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const utils_1 = require("@morjs/utils");
const constants_1 = require("../constants");
/**
* 支付宝 sjs 文件转译
*/
class AlipayCompilerSjsParserPlugin {
constructor() {
this.name = 'AlipayCompilerSjsParserPlugin';
}
apply(runner) {
runner.hooks.beforeRun.tap(this.name, () => {
const { sourceType, target } = runner.userConfig;
// 仅当 sjs 是 支付宝 源码 且 编译目标不是 支付宝小程序 时执行该插件
if (sourceType !== utils_1.SourceTypes.alipay)
return;
if (sourceType === target)
return;
if ((0, constants_1.isSimilarTarget)(target))
return;
runner.hooks.beforeBuildEntries.tap(this.name, (entryBuilder) => {
this.entryBuilder = entryBuilder;
});
runner.hooks.sjsParser.tap(this.name, (transformers, options) => {
this.removeEsModuleMarkAndFixVoidZeroExpression(transformers);
if (options.fileInfo.content.includes('import') ||
options.fileInfo.content.includes('export')) {
this.transformESModuleToCommonjs(transformers);
}
return transformers;
});
});
}
transformESModuleToCommonjs(transformers) {
transformers.before.push((0, utils_1.tsTransformerFactory)((node, ctx) => {
var _a;
const factory = ctx.factory;
/**
* export {} 替换为 module.exports
*/
if (utils_1.typescript.isExportAssignment(node)) {
const expression = node.expression;
return factory.createExpressionStatement(factory.createBinaryExpression(factory.createPropertyAccessExpression(factory.createIdentifier('module'), factory.createIdentifier('exports')), factory.createToken(utils_1.typescript.SyntaxKind.EqualsToken), expression));
}
/**
* 处理 export default function name() {} 的情况
* 原因： 微信不支持 exports.default = name 这种语法，会报错
* 这里转换为 module.exports = function name() {}
*/
if (utils_1.typescript.isFunctionDeclaration(node) && ((_a = node.modifiers) === null || _a === void 0 ? void 0 : _a.length)) {
const exportKeyword = node.modifiers[0];
const exportDefaultKeyword = node.modifiers[1];
if (utils_1.typescript.isToken(exportKeyword) &&
exportKeyword.kind === utils_1.typescript.SyntaxKind.ExportKeyword &&
utils_1.typescript.isToken(exportDefaultKeyword) &&
exportDefaultKeyword.kind === utils_1.typescript.SyntaxKind.DefaultKeyword) {
return factory.createExpressionStatement(factory.createBinaryExpression(factory.createPropertyAccessExpression(factory.createIdentifier('module'), factory.createIdentifier('exports')), factory.createToken(utils_1.typescript.SyntaxKind.EqualsToken), factory.createFunctionExpression(undefined, node.asteriskToken, node.name, node.typeParameters, node.parameters, node.type, node.body)));
}
}
return node;
}));
}
/**
* 支付宝小程序的 sjs 是 esmodule
* 这里主要是用于处理 esmodule 转换为 commonjs 之后的兼容性问题
*/
removeEsModuleMarkAndFixVoidZeroExpression(transformers) {
transformers.after.push((0, utils_1.tsTransformerFactory)((node, ctx) => {
/**
* 移除表达式:
* Object.defineProperty(exports, "__esModule", { value: true })
*/
if (utils_1.typescript.isExpressionStatement(node) &&
utils_1.typescript.isCallExpression(node.expression) &&
utils_1.typescript.isPropertyAccessExpression(node.expression.expression) &&
utils_1.typescript.isIdentifier(node.expression.expression.expression) &&
node.expression.expression.expression.escapedText === 'Object' &&
utils_1.typescript.isIdentifier(node.expression.expression.name) &&
node.expression.expression.name.escapedText === 'defineProperty' &&
node.expression.arguments.length &&
utils_1.typescript.isIdentifier(node.expression.arguments[0]) &&
node.expression.arguments[0].escapedText === 'exports') {
return undefined;
}
/*
* 在微信的 wxs 中, 存在如下 BUG
* x = a === void 0 ? [] : a 这样的三目运算符会返回 true 而不是表达式中的值
* 经过测试是 void 0 引起的，为了兼容这个问题，统一改为 undefined
*/
if (utils_1.typescript.isVoidExpression(node) &&
utils_1.typescript.isNumericLiteral(node.expression) &&
node.expression.text === '0') {
return ctx.factory.createIdentifier('undefined');
}
return node;
}));
}
}
exports.default = AlipayCompilerSjsParserPlugin;
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