You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
121 lines
3.7 KiB
121 lines
3.7 KiB
/*
|
|
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 */
|
|
|
|
/**
|
|
* @param {string} condition condition
|
|
* @param {string | Source} source source
|
|
* @returns {string | Source} wrapped source
|
|
*/
|
|
const wrapInCondition = (condition, source) => {
|
|
if (typeof source === "string") {
|
|
return Template.asString([
|
|
`if (${condition}) {`,
|
|
Template.indent(source),
|
|
"}",
|
|
""
|
|
]);
|
|
}
|
|
return new ConcatSource(
|
|
`if (${condition}) {\n`,
|
|
new PrefixSource("\t", source),
|
|
"}\n"
|
|
);
|
|
};
|
|
|
|
/**
|
|
* @extends {InitFragment<GenerateContext>}
|
|
*/
|
|
class ConditionalInitFragment extends InitFragment {
|
|
/**
|
|
* @param {string | Source | undefined} 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 | undefined} 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 = undefined
|
|
) {
|
|
super(content, stage, position, key, endContent);
|
|
this.runtimeCondition = runtimeCondition;
|
|
}
|
|
|
|
/**
|
|
* @param {GenerateContext} context context
|
|
* @returns {string | Source | undefined} the source code that will be included as initialization code
|
|
*/
|
|
getContent(context) {
|
|
if (this.runtimeCondition === false || !this.content) return "";
|
|
if (this.runtimeCondition === true) return this.content;
|
|
const expr = context.runtimeTemplate.runtimeConditionExpression({
|
|
chunkGraph: context.chunkGraph,
|
|
runtimeRequirements: context.runtimeRequirements,
|
|
runtime: context.runtime,
|
|
runtimeCondition: this.runtimeCondition
|
|
});
|
|
if (expr === "true") return this.content;
|
|
return wrapInCondition(expr, this.content);
|
|
}
|
|
|
|
/**
|
|
* @param {GenerateContext} context context
|
|
* @returns {string|Source=} the source code that will be included at the end of the module
|
|
*/
|
|
getEndContent(context) {
|
|
if (this.runtimeCondition === false || !this.endContent) return "";
|
|
if (this.runtimeCondition === true) return this.endContent;
|
|
const expr = context.runtimeTemplate.runtimeConditionExpression({
|
|
chunkGraph: context.chunkGraph,
|
|
runtimeRequirements: context.runtimeRequirements,
|
|
runtime: context.runtime,
|
|
runtimeCondition: this.runtimeCondition
|
|
});
|
|
if (expr === "true") return this.endContent;
|
|
return wrapInCondition(expr, this.endContent);
|
|
}
|
|
|
|
/**
|
|
* @param {ConditionalInitFragment} other fragment to merge with
|
|
* @returns {ConditionalInitFragment} merged fragment
|
|
*/
|
|
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;
|