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keksAccountGUI/node_modulesOLD/eslint/lib/rules/max-lines.js

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2019-08-11 18:48:02 +00:00
/**
* @fileoverview enforce a maximum file length
* @author Alberto Rodríguez
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const lodash = require("lodash");
const astUtils = require("../util/ast-utils");
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
type: "suggestion",
docs: {
description: "enforce a maximum number of lines per file",
category: "Stylistic Issues",
recommended: false,
url: "https://eslint.org/docs/rules/max-lines"
},
schema: [
{
oneOf: [
{
type: "integer",
minimum: 0
},
{
type: "object",
properties: {
max: {
type: "integer",
minimum: 0
},
skipComments: {
type: "boolean"
},
skipBlankLines: {
type: "boolean"
}
},
additionalProperties: false
}
]
}
],
messages: {
exceed: "File must be at most {{max}} lines long. It's {{actual}} lines long."
}
},
create(context) {
const option = context.options[0];
let max = 300;
if (typeof option === "object" && Object.prototype.hasOwnProperty.call(option, "max")) {
max = option.max;
} else if (typeof option === "number") {
max = option;
}
const skipComments = option && option.skipComments;
const skipBlankLines = option && option.skipBlankLines;
const sourceCode = context.getSourceCode();
/**
* Returns whether or not a token is a comment node type
* @param {Token} token The token to check
* @returns {boolean} True if the token is a comment node
*/
function isCommentNodeType(token) {
return token && (token.type === "Block" || token.type === "Line");
}
/**
* Returns the line numbers of a comment that don't have any code on the same line
* @param {Node} comment The comment node to check
* @returns {number[]} The line numbers
*/
function getLinesWithoutCode(comment) {
let start = comment.loc.start.line;
let end = comment.loc.end.line;
let token;
token = comment;
do {
token = sourceCode.getTokenBefore(token, { includeComments: true });
} while (isCommentNodeType(token));
if (token && astUtils.isTokenOnSameLine(token, comment)) {
start += 1;
}
token = comment;
do {
token = sourceCode.getTokenAfter(token, { includeComments: true });
} while (isCommentNodeType(token));
if (token && astUtils.isTokenOnSameLine(comment, token)) {
end -= 1;
}
if (start <= end) {
return lodash.range(start, end + 1);
}
return [];
}
return {
"Program:exit"() {
let lines = sourceCode.lines.map((text, i) => ({ lineNumber: i + 1, text }));
if (skipBlankLines) {
lines = lines.filter(l => l.text.trim() !== "");
}
if (skipComments) {
const comments = sourceCode.getAllComments();
const commentLines = lodash.flatten(comments.map(comment => getLinesWithoutCode(comment)));
lines = lines.filter(l => !lodash.includes(commentLines, l.lineNumber));
}
if (lines.length > max) {
context.report({
loc: { line: 1, column: 0 },
messageId: "exceed",
data: {
max,
actual: lines.length
}
});
}
}
};
}
};