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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- */
- "use strict";
- const NullDependency = require("./NullDependency");
-
- class RequireEnsureDependency extends NullDependency {
- constructor(block) {
- super();
- this.block = block;
- }
-
- get type() {
- return "require.ensure";
- }
- }
-
- RequireEnsureDependency.Template = class RequireEnsureDependencyTemplate {
- apply(dep, source, runtime) {
- const depBlock = dep.block;
- const promise = runtime.blockPromise({
- block: depBlock,
- message: "require.ensure"
- });
- const errorCallbackExists =
- depBlock.expr.arguments.length === 4 ||
- (!depBlock.chunkName && depBlock.expr.arguments.length === 3);
- const startBlock = `${promise}.then((`;
- const middleBlock = ").bind(null, __webpack_require__)).catch(";
- const endBlock = `).bind(null, __webpack_require__)).catch(${runtime.onError()})`;
- source.replace(
- depBlock.expr.range[0],
- depBlock.expr.arguments[1].range[0] - 1,
- startBlock
- );
- if (errorCallbackExists) {
- source.replace(
- depBlock.expr.arguments[1].range[1],
- depBlock.expr.arguments[2].range[0] - 1,
- middleBlock
- );
- source.replace(
- depBlock.expr.arguments[2].range[1],
- depBlock.expr.range[1] - 1,
- ")"
- );
- } else {
- source.replace(
- depBlock.expr.arguments[1].range[1],
- depBlock.expr.range[1] - 1,
- endBlock
- );
- }
- }
- };
-
- module.exports = RequireEnsureDependency;
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