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76 lines
3.4 KiB
Plaintext
76 lines
3.4 KiB
Plaintext
import { f as createRule, g as import_ast_utils, w as canTokensBeAdjacent } from "../utils.js";
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function hasBlockBody(node) {
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return node.body.type === "BlockStatement";
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}
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var arrow_parens_default = createRule({
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name: "arrow-parens",
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meta: {
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type: "layout",
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docs: { description: "Require parentheses around arrow function arguments" },
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fixable: "code",
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schema: [{
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type: "string",
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enum: ["always", "as-needed"]
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}, {
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type: "object",
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properties: { requireForBlockBody: { type: "boolean" } },
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additionalProperties: false
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}],
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defaultOptions: ["always"],
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messages: {
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unexpectedParens: "Unexpected parentheses around single function argument.",
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expectedParens: "Expected parentheses around arrow function argument.",
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unexpectedParensInline: "Unexpected parentheses around single function argument having a body with no curly braces.",
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expectedParensBlock: "Expected parentheses around arrow function argument having a body with curly braces."
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}
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},
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create(context, [style, options]) {
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const asNeeded = style === "as-needed";
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const requireForBlockBody = asNeeded && options?.requireForBlockBody === true;
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const sourceCode = context.sourceCode;
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function findOpeningParenOfParams(node) {
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const tokenBeforeParams = sourceCode.getTokenBefore(node.params[0]);
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if (tokenBeforeParams && (0, import_ast_utils.isOpeningParenToken)(tokenBeforeParams) && node.range[0] <= tokenBeforeParams.range[0]) return tokenBeforeParams;
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return null;
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}
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function getClosingParenOfParams(node) {
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return sourceCode.getTokenAfter(node.params[0], import_ast_utils.isClosingParenToken);
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}
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function hasCommentsInParensOfParams(node, openingParen) {
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return sourceCode.commentsExistBetween(openingParen, getClosingParenOfParams(node));
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}
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function hasUnexpectedTokensBeforeOpeningParen(node, openingParen) {
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const expectedCount = node.async ? 1 : 0;
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return sourceCode.getFirstToken(node, { skip: expectedCount }) !== openingParen;
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}
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return { "ArrowFunctionExpression[params.length=1]": function(node) {
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const shouldHaveParens = !asNeeded || requireForBlockBody && hasBlockBody(node);
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const openingParen = findOpeningParenOfParams(node);
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const hasParens = openingParen !== null;
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const [param] = node.params;
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if (shouldHaveParens && !hasParens) context.report({
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node,
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messageId: requireForBlockBody ? "expectedParensBlock" : "expectedParens",
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loc: param.loc,
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*fix(fixer) {
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yield fixer.insertTextBefore(param, "(");
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yield fixer.insertTextAfter(param, ")");
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}
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});
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if (!shouldHaveParens && hasParens && param.type === "Identifier" && !param.optional && !param.typeAnnotation && !node.returnType && !hasCommentsInParensOfParams(node, openingParen) && !hasUnexpectedTokensBeforeOpeningParen(node, openingParen)) context.report({
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node,
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messageId: requireForBlockBody ? "unexpectedParensInline" : "unexpectedParens",
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loc: param.loc,
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*fix(fixer) {
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const tokenBeforeOpeningParen = sourceCode.getTokenBefore(openingParen);
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const closingParen = getClosingParenOfParams(node);
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if (tokenBeforeOpeningParen && tokenBeforeOpeningParen.range[1] === openingParen.range[0] && !canTokensBeAdjacent(tokenBeforeOpeningParen, sourceCode.getFirstToken(param))) yield fixer.insertTextBefore(openingParen, " ");
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yield fixer.removeRange([openingParen.range[0], param.range[0]]);
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yield fixer.removeRange([param.range[1], closingParen.range[1]]);
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}
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});
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} };
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}
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});
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export { arrow_parens_default as t };
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