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1 files changed, 55 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/JsonGenerator.js b/node_modules/webpack/lib/JsonGenerator.js
new file mode 100644
index 00000000..5b4c7395
--- /dev/null
+++ b/node_modules/webpack/lib/JsonGenerator.js
@@ -0,0 +1,55 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const { ConcatSource, RawSource } = require("webpack-sources");
+
+const stringifySafe = data => {
+	const stringified = JSON.stringify(data);
+	if (!stringified) {
+		return undefined; // Invalid JSON
+	}
+
+	return stringified.replace(
+		/\u2028|\u2029/g,
+		str => (str === "\u2029" ? "\\u2029" : "\\u2028")
+	); // invalid in JavaScript but valid JSON
+};
+
+class JsonGenerator {
+	generate(module, dependencyTemplates, runtimeTemplate) {
+		const source = new ConcatSource();
+		const data = module.buildInfo.jsonData;
+		if (data === undefined) {
+			return new RawSource(
+				runtimeTemplate.missingModuleStatement({
+					request: module.rawRequest
+				})
+			);
+		}
+		if (
+			Array.isArray(module.buildMeta.providedExports) &&
+			!module.isUsed("default")
+		) {
+			// Only some exports are used: We can optimize here, by only generating a part of the JSON
+			const reducedJson = {};
+			for (const exportName of module.buildMeta.providedExports) {
+				if (exportName === "default") continue;
+				const used = module.isUsed(exportName);
+				if (used) {
+					reducedJson[used] = data[exportName];
+				}
+			}
+			source.add(
+				`${module.moduleArgument}.exports = ${stringifySafe(reducedJson)};`
+			);
+		} else {
+			source.add(`${module.moduleArgument}.exports = ${stringifySafe(data)};`);
+		}
+		return source;
+	}
+}
+
+module.exports = JsonGenerator;