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Diffstat (limited to 'node_modules/webpack/lib/json/JsonGenerator.js')
| -rw-r--r-- | node_modules/webpack/lib/json/JsonGenerator.js | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/node_modules/webpack/lib/json/JsonGenerator.js b/node_modules/webpack/lib/json/JsonGenerator.js deleted file mode 100644 index d7074fc0..00000000 --- a/node_modules/webpack/lib/json/JsonGenerator.js +++ /dev/null @@ -1,205 +0,0 @@ -/* - MIT License http://www.opensource.org/licenses/mit-license.php - Author Tobias Koppers @sokra -*/ - -"use strict"; - -const { RawSource } = require("webpack-sources"); -const ConcatenationScope = require("../ConcatenationScope"); -const { UsageState } = require("../ExportsInfo"); -const Generator = require("../Generator"); -const RuntimeGlobals = require("../RuntimeGlobals"); - -/** @typedef {import("webpack-sources").Source} Source */ -/** @typedef {import("../ExportsInfo")} ExportsInfo */ -/** @typedef {import("../Generator").GenerateContext} GenerateContext */ -/** @typedef {import("../Module").ConcatenationBailoutReasonContext} ConcatenationBailoutReasonContext */ -/** @typedef {import("../NormalModule")} NormalModule */ -/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */ -/** @typedef {import("./JsonData")} JsonData */ -/** @typedef {import("./JsonModulesPlugin").RawJsonData} RawJsonData */ - -/** - * @param {RawJsonData} data Raw JSON data - * @returns {undefined|string} stringified data - */ -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 -}; - -/** - * @param {RawJsonData} data Raw JSON data (always an object or array) - * @param {ExportsInfo} exportsInfo exports info - * @param {RuntimeSpec} runtime the runtime - * @returns {RawJsonData} reduced data - */ -const createObjectForExportsInfo = (data, exportsInfo, runtime) => { - if (exportsInfo.otherExportsInfo.getUsed(runtime) !== UsageState.Unused) - return data; - const isArray = Array.isArray(data); - /** @type {RawJsonData} */ - const reducedData = isArray ? [] : {}; - for (const key of Object.keys(data)) { - const exportInfo = exportsInfo.getReadOnlyExportInfo(key); - const used = exportInfo.getUsed(runtime); - if (used === UsageState.Unused) continue; - - /** @type {RawJsonData} */ - let value; - if (used === UsageState.OnlyPropertiesUsed && exportInfo.exportsInfo) { - value = createObjectForExportsInfo( - data[key], - exportInfo.exportsInfo, - runtime - ); - } else { - value = data[key]; - } - - const name = /** @type {string} */ (exportInfo.getUsedName(key, runtime)); - /** @type {Record<string, RawJsonData>} */ (reducedData)[name] = value; - } - if (isArray) { - let arrayLengthWhenUsed = - exportsInfo.getReadOnlyExportInfo("length").getUsed(runtime) !== - UsageState.Unused - ? data.length - : undefined; - - let sizeObjectMinusArray = 0; - for (let i = 0; i < reducedData.length; i++) { - if (reducedData[i] === undefined) { - sizeObjectMinusArray -= 2; - } else { - sizeObjectMinusArray += `${i}`.length + 3; - } - } - if (arrayLengthWhenUsed !== undefined) { - sizeObjectMinusArray += - `${arrayLengthWhenUsed}`.length + - 8 - - (arrayLengthWhenUsed - reducedData.length) * 2; - } - if (sizeObjectMinusArray < 0) - return Object.assign( - arrayLengthWhenUsed === undefined - ? {} - : { length: arrayLengthWhenUsed }, - reducedData - ); - /** @type {number} */ - const generatedLength = - arrayLengthWhenUsed !== undefined - ? Math.max(arrayLengthWhenUsed, reducedData.length) - : reducedData.length; - for (let i = 0; i < generatedLength; i++) { - if (reducedData[i] === undefined) { - reducedData[i] = 0; - } - } - } - return reducedData; -}; - -const TYPES = new Set(["javascript"]); - -class JsonGenerator extends Generator { - /** - * @param {NormalModule} module fresh module - * @returns {Set<string>} available types (do not mutate) - */ - getTypes(module) { - return TYPES; - } - - /** - * @param {NormalModule} module the module - * @param {string=} type source type - * @returns {number} estimate size of the module - */ - getSize(module, type) { - /** @type {RawJsonData | undefined} */ - const data = - module.buildInfo && - module.buildInfo.jsonData && - module.buildInfo.jsonData.get(); - if (!data) return 0; - return /** @type {string} */ (stringifySafe(data)).length + 10; - } - - /** - * @param {NormalModule} module module for which the bailout reason should be determined - * @param {ConcatenationBailoutReasonContext} context context - * @returns {string | undefined} reason why this module can't be concatenated, undefined when it can be concatenated - */ - getConcatenationBailoutReason(module, context) { - return undefined; - } - - /** - * @param {NormalModule} module module for which the code should be generated - * @param {GenerateContext} generateContext context for generate - * @returns {Source} generated code - */ - generate( - module, - { - moduleGraph, - runtimeTemplate, - runtimeRequirements, - runtime, - concatenationScope - } - ) { - /** @type {RawJsonData | undefined} */ - const data = - module.buildInfo && - module.buildInfo.jsonData && - module.buildInfo.jsonData.get(); - if (data === undefined) { - return new RawSource( - runtimeTemplate.missingModuleStatement({ - request: module.rawRequest - }) - ); - } - const exportsInfo = moduleGraph.getExportsInfo(module); - /** @type {RawJsonData} */ - let finalJson = - typeof data === "object" && - data && - exportsInfo.otherExportsInfo.getUsed(runtime) === UsageState.Unused - ? createObjectForExportsInfo(data, exportsInfo, runtime) - : data; - // Use JSON because JSON.parse() is much faster than JavaScript evaluation - const jsonStr = /** @type {string} */ (stringifySafe(finalJson)); - const jsonExpr = - jsonStr.length > 20 && typeof finalJson === "object" - ? `JSON.parse('${jsonStr.replace(/[\\']/g, "\\$&")}')` - : jsonStr; - /** @type {string} */ - let content; - if (concatenationScope) { - content = `${runtimeTemplate.supportsConst() ? "const" : "var"} ${ - ConcatenationScope.NAMESPACE_OBJECT_EXPORT - } = ${jsonExpr};`; - concatenationScope.registerNamespaceExport( - ConcatenationScope.NAMESPACE_OBJECT_EXPORT - ); - } else { - runtimeRequirements.add(RuntimeGlobals.module); - content = `${module.moduleArgument}.exports = ${jsonExpr};`; - } - return new RawSource(content); - } -} - -module.exports = JsonGenerator; |