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JavaScript

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.defineVisitor = void 0;
const SV = __importStar(require("./svelte"));
const ES = __importStar(require("./es"));
const TS = __importStar(require("./ts"));
const ast_1 = require("./ast");
const eslint_utils_1 = require("@eslint-community/eslint-utils");
const offset_context_1 = require("./offset-context");
const compat_1 = require("../../utils/compat");
function parseOptions(options, defaultOptions) {
const ret = {
indentChar: ' ',
indentScript: true,
indentSize: 2,
switchCase: 1,
alignAttributesVertically: false,
ignoredNodes: [],
...defaultOptions
};
if (Number.isSafeInteger(options.indent)) {
ret.indentSize = Number(options.indent);
}
else if (options.indent === 'tab') {
ret.indentChar = '\t';
ret.indentSize = 1;
}
if (typeof options.indentScript === 'boolean') {
ret.indentScript = options.indentScript;
}
if (options.switchCase != null && Number.isSafeInteger(options.switchCase)) {
ret.switchCase = options.switchCase;
}
if (options.ignoredNodes != null) {
ret.ignoredNodes = options.ignoredNodes;
}
if (options.alignAttributesVertically && ret.indentChar === ' ') {
ret.alignAttributesVertically = true;
}
else if (ret.indentChar !== ' ') {
ret.alignAttributesVertically = false;
}
return ret;
}
function defineVisitor(context, defaultOptions) {
if (!(0, compat_1.getFilename)(context).endsWith('.svelte'))
return {};
const options = parseOptions(context.options[0] || {}, defaultOptions);
const sourceCode = (0, compat_1.getSourceCode)(context);
const offsets = new offset_context_1.OffsetContext({ sourceCode, options });
function getIndentText({ line, column }) {
return sourceCode.lines[line - 1].slice(0, column);
}
function validateToken(token, expectedIndent) {
const line = token.loc.start.line;
const indentText = getIndentText(token.loc.start);
if (indentText.trim() !== '') {
return;
}
const actualIndent = token.loc.start.column;
const mismatchCharIndexes = [];
for (let i = 0; i < indentText.length; ++i) {
if (indentText[i] !== options.indentChar) {
mismatchCharIndexes.push(i);
}
}
if (actualIndent !== expectedIndent) {
const loc = {
start: { line, column: 0 },
end: { line, column: actualIndent }
};
context.report({
loc,
messageId: 'unexpectedIndentation',
data: {
expectedIndent: String(expectedIndent),
actualIndent: String(actualIndent),
expectedUnit: options.indentChar === '\t' ? 'tab' : 'space',
actualUnit: mismatchCharIndexes.length
? 'whitespace'
: options.indentChar === '\t'
? 'tab'
: 'space',
expectedIndentPlural: expectedIndent === 1 ? '' : 's',
actualIndentPlural: actualIndent === 1 ? '' : 's'
},
fix(fixer) {
return fixer.replaceTextRange([sourceCode.getIndexFromLoc(loc.start), sourceCode.getIndexFromLoc(loc.end)], options.indentChar.repeat(expectedIndent));
}
});
return;
}
for (const i of mismatchCharIndexes) {
const loc = {
start: { line, column: i },
end: { line, column: i + 1 }
};
context.report({
loc,
messageId: 'unexpectedChar',
data: {
expected: JSON.stringify(options.indentChar),
actual: JSON.stringify(indentText[i])
},
fix(fixer) {
return fixer.replaceTextRange([sourceCode.getIndexFromLoc(loc.start), sourceCode.getIndexFromLoc(loc.end)], options.indentChar);
}
});
}
}
function processLine(tokens, prevComments, prevToken, calculator) {
const firstToken = tokens[0];
const actualIndent = firstToken.loc.start.column;
const expectedIndent = calculator.getExpectedIndentFromTokens(tokens);
if (expectedIndent == null) {
calculator.saveExpectedIndent(tokens, actualIndent);
return;
}
calculator.saveExpectedIndent(tokens, Math.min(...tokens
.map((t) => calculator.getExpectedIndentFromToken(t))
.filter((i) => i != null)));
let prev = prevToken;
if (prevComments.length) {
if (prev && prev.loc.end.line < prevComments[0].loc.start.line) {
validateToken(prevComments[0], expectedIndent);
}
prev = prevComments[prevComments.length - 1];
}
if (prev && prev.loc.end.line < tokens[0].loc.start.line) {
validateToken(tokens[0], expectedIndent);
}
}
const indentContext = {
sourceCode,
options,
offsets
};
const nodesVisitor = {
...ES.defineVisitor(indentContext),
...SV.defineVisitor(indentContext),
...TS.defineVisitor(indentContext)
};
const knownNodes = new Set(Object.keys(nodesVisitor));
function compositingIgnoresVisitor(visitor) {
for (const ignoreSelector of options.ignoredNodes) {
const key = `${ignoreSelector}:exit`;
if (visitor[key]) {
const handler = visitor[key];
visitor[key] = function (node, ...args) {
const ret = handler.call(this, node, ...args);
offsets.ignore(node);
return ret;
};
}
else {
visitor[key] = (node) => offsets.ignore(node);
}
}
return visitor;
}
return compositingIgnoresVisitor({
...nodesVisitor,
'*:exit'(node) {
if (!knownNodes.has(node.type)) {
offsets.ignore(node);
}
},
'Program:exit'(node) {
const calculator = offsets.getOffsetCalculator();
let prevToken = null;
for (const { prevComments, tokens } of iterateLineTokens()) {
processLine(tokens, prevComments, prevToken, calculator);
prevToken = tokens[tokens.length - 1];
}
function* iterateLineTokens() {
let line = 0;
let prevComments = [];
let bufferTokens = [];
for (const token of sourceCode.getTokens(node, {
includeComments: true,
filter: ast_1.isNotWhitespace
})) {
const thisLine = token.loc.start.line;
if (line === thisLine || bufferTokens.length === 0) {
bufferTokens.push(token);
}
else {
if ((0, eslint_utils_1.isCommentToken)(bufferTokens[0]) && bufferTokens.every(eslint_utils_1.isCommentToken)) {
prevComments.push(bufferTokens[0]);
}
else {
yield {
prevComments,
tokens: bufferTokens
};
prevComments = [];
}
bufferTokens = [token];
}
line = thisLine;
}
if (bufferTokens.length && !bufferTokens.every(eslint_utils_1.isCommentToken)) {
yield {
prevComments,
tokens: bufferTokens
};
}
}
}
});
}
exports.defineVisitor = defineVisitor;