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rOACCT/node_modules/webpack/lib/ConditionalInitFragment.js
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ConditionalInitFragment.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const { ConcatSource, PrefixSource } = require("webpack-sources");
const InitFragment = require("./InitFragment");
const Template = require("./Template");
const { mergeRuntime } = require("./util/runtime");
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("./Generator").GenerateContext} GenerateContext */
/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
const wrapInCondition = (condition, source) => {
if (typeof source === "string") {
return Template.asString([
`if (${condition}) {`,
Template.indent(source),
"}",
""
]);
} else {
return new ConcatSource(
`if (${condition}) {\n`,
new PrefixSource("\t", source),
"}\n"
);
}
};
class ConditionalInitFragment extends InitFragment {
/**
* @param {string|Source} content the source code that will be included as initialization code
* @param {number} stage category of initialization code (contribute to order)
* @param {number} position position in the category (contribute to order)
* @param {string} key unique key to avoid emitting the same initialization code twice
* @param {RuntimeSpec | boolean} runtimeCondition in which runtime this fragment should be executed
* @param {string|Source=} endContent the source code that will be included at the end of the module
*/
constructor(
content,
stage,
position,
key,
runtimeCondition = true,
endContent
) {
super(content, stage, position, key, endContent);
this.runtimeCondition = runtimeCondition;
}
/**
* @param {GenerateContext} generateContext context for generate
* @returns {string|Source} the source code that will be included as initialization code
*/
getContent(generateContext) {
if (this.runtimeCondition === false || !this.content) return "";
if (this.runtimeCondition === true) return this.content;
const expr = generateContext.runtimeTemplate.runtimeConditionExpression({
chunkGraph: generateContext.chunkGraph,
runtimeRequirements: generateContext.runtimeRequirements,
runtime: generateContext.runtime,
runtimeCondition: this.runtimeCondition
});
if (expr === "true") return this.content;
return wrapInCondition(expr, this.content);
}
/**
* @param {GenerateContext} generateContext context for generate
* @returns {string|Source=} the source code that will be included at the end of the module
*/
getEndContent(generateContext) {
if (this.runtimeCondition === false || !this.endContent) return "";
if (this.runtimeCondition === true) return this.endContent;
const expr = generateContext.runtimeTemplate.runtimeConditionExpression({
chunkGraph: generateContext.chunkGraph,
runtimeRequirements: generateContext.runtimeRequirements,
runtime: generateContext.runtime,
runtimeCondition: this.runtimeCondition
});
if (expr === "true") return this.endContent;
return wrapInCondition(expr, this.endContent);
}
merge(other) {
if (this.runtimeCondition === true) return this;
if (other.runtimeCondition === true) return other;
if (this.runtimeCondition === false) return other;
if (other.runtimeCondition === false) return this;
const runtimeCondition = mergeRuntime(
this.runtimeCondition,
other.runtimeCondition
);
return new ConditionalInitFragment(
this.content,
this.stage,
this.position,
this.key,
runtimeCondition,
this.endContent
);
}
}
module.exports = ConditionalInitFragment;
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