codtracker-js/node_modules/eslint/lib/rules/yield-star-spacing.js
2025-04-17 07:44:37 -04:00

160 lines
3.9 KiB
JavaScript

/**
* @fileoverview Rule to check the spacing around the * in yield* expressions.
* @author Bryan Smith
* @deprecated in ESLint v8.53.0
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
/** @type {import('../types').Rule.RuleModule} */
module.exports = {
meta: {
deprecated: {
message: "Formatting rules are being moved out of ESLint core.",
url: "https://eslint.org/blog/2023/10/deprecating-formatting-rules/",
deprecatedSince: "8.53.0",
availableUntil: "10.0.0",
replacedBy: [
{
message:
"ESLint Stylistic now maintains deprecated stylistic core rules.",
url: "https://eslint.style/guide/migration",
plugin: {
name: "@stylistic/eslint-plugin-js",
url: "https://eslint.style/packages/js",
},
rule: {
name: "yield-star-spacing",
url: "https://eslint.style/rules/js/yield-star-spacing",
},
},
],
},
type: "layout",
docs: {
description:
"Require or disallow spacing around the `*` in `yield*` expressions",
recommended: false,
url: "https://eslint.org/docs/latest/rules/yield-star-spacing",
},
fixable: "whitespace",
schema: [
{
oneOf: [
{
enum: ["before", "after", "both", "neither"],
},
{
type: "object",
properties: {
before: { type: "boolean" },
after: { type: "boolean" },
},
additionalProperties: false,
},
],
},
],
messages: {
missingBefore: "Missing space before *.",
missingAfter: "Missing space after *.",
unexpectedBefore: "Unexpected space before *.",
unexpectedAfter: "Unexpected space after *.",
},
},
create(context) {
const sourceCode = context.sourceCode;
const mode = (function (option) {
if (!option || typeof option === "string") {
return {
before: { before: true, after: false },
after: { before: false, after: true },
both: { before: true, after: true },
neither: { before: false, after: false },
}[option || "after"];
}
return option;
})(context.options[0]);
/**
* Checks the spacing between two tokens before or after the star token.
* @param {string} side Either "before" or "after".
* @param {Token} leftToken `function` keyword token if side is "before", or
* star token if side is "after".
* @param {Token} rightToken Star token if side is "before", or identifier
* token if side is "after".
* @returns {void}
*/
function checkSpacing(side, leftToken, rightToken) {
if (
sourceCode.isSpaceBetweenTokens(leftToken, rightToken) !==
mode[side]
) {
const after = leftToken.value === "*";
const spaceRequired = mode[side];
const node = after ? leftToken : rightToken;
let messageId;
if (spaceRequired) {
messageId =
side === "before" ? "missingBefore" : "missingAfter";
} else {
messageId =
side === "before"
? "unexpectedBefore"
: "unexpectedAfter";
}
context.report({
node,
messageId,
fix(fixer) {
if (spaceRequired) {
if (after) {
return fixer.insertTextAfter(node, " ");
}
return fixer.insertTextBefore(node, " ");
}
return fixer.removeRange([
leftToken.range[1],
rightToken.range[0],
]);
},
});
}
}
/**
* Enforces the spacing around the star if node is a yield* expression.
* @param {ASTNode} node A yield expression node.
* @returns {void}
*/
function checkExpression(node) {
if (!node.delegate) {
return;
}
const tokens = sourceCode.getFirstTokens(node, 3);
const yieldToken = tokens[0];
const starToken = tokens[1];
const nextToken = tokens[2];
checkSpacing("before", yieldToken, starToken);
checkSpacing("after", starToken, nextToken);
}
return {
YieldExpression: checkExpression,
};
},
};