230 lines
9.7 KiB
JavaScript
230 lines
9.7 KiB
JavaScript
/**
|
|
* @fileoverview Rule to control spacing within function calls
|
|
* @author Matt DuVall <http://www.mattduvall.com>
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Requirements
|
|
//------------------------------------------------------------------------------
|
|
|
|
const astUtils = require("./utils/ast-utils");
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Rule Definition
|
|
//------------------------------------------------------------------------------
|
|
|
|
/** @type {import('../shared/types').Rule} */
|
|
module.exports = {
|
|
meta: {
|
|
type: "layout",
|
|
|
|
docs: {
|
|
description: "require or disallow spacing between function identifiers and their invocations",
|
|
recommended: false,
|
|
url: "https://eslint.org/docs/rules/func-call-spacing"
|
|
},
|
|
|
|
fixable: "whitespace",
|
|
|
|
schema: {
|
|
anyOf: [
|
|
{
|
|
type: "array",
|
|
items: [
|
|
{
|
|
enum: ["never"]
|
|
}
|
|
],
|
|
minItems: 0,
|
|
maxItems: 1
|
|
},
|
|
{
|
|
type: "array",
|
|
items: [
|
|
{
|
|
enum: ["always"]
|
|
},
|
|
{
|
|
type: "object",
|
|
properties: {
|
|
allowNewlines: {
|
|
type: "boolean"
|
|
}
|
|
},
|
|
additionalProperties: false
|
|
}
|
|
],
|
|
minItems: 0,
|
|
maxItems: 2
|
|
}
|
|
]
|
|
},
|
|
|
|
messages: {
|
|
unexpectedWhitespace: "Unexpected whitespace between function name and paren.",
|
|
unexpectedNewline: "Unexpected newline between function name and paren.",
|
|
missing: "Missing space between function name and paren."
|
|
}
|
|
},
|
|
|
|
create(context) {
|
|
|
|
const never = context.options[0] !== "always";
|
|
const allowNewlines = !never && context.options[1] && context.options[1].allowNewlines;
|
|
const sourceCode = context.getSourceCode();
|
|
const text = sourceCode.getText();
|
|
|
|
/**
|
|
* Check if open space is present in a function name
|
|
* @param {ASTNode} node node to evaluate
|
|
* @param {Token} leftToken The last token of the callee. This may be the closing parenthesis that encloses the callee.
|
|
* @param {Token} rightToken Tha first token of the arguments. this is the opening parenthesis that encloses the arguments.
|
|
* @returns {void}
|
|
* @private
|
|
*/
|
|
function checkSpacing(node, leftToken, rightToken) {
|
|
const textBetweenTokens = text.slice(leftToken.range[1], rightToken.range[0]).replace(/\/\*.*?\*\//gu, "");
|
|
const hasWhitespace = /\s/u.test(textBetweenTokens);
|
|
const hasNewline = hasWhitespace && astUtils.LINEBREAK_MATCHER.test(textBetweenTokens);
|
|
|
|
/*
|
|
* never allowNewlines hasWhitespace hasNewline message
|
|
* F F F F Missing space between function name and paren.
|
|
* F F F T (Invalid `!hasWhitespace && hasNewline`)
|
|
* F F T T Unexpected newline between function name and paren.
|
|
* F F T F (OK)
|
|
* F T T F (OK)
|
|
* F T T T (OK)
|
|
* F T F T (Invalid `!hasWhitespace && hasNewline`)
|
|
* F T F F Missing space between function name and paren.
|
|
* T T F F (Invalid `never && allowNewlines`)
|
|
* T T F T (Invalid `!hasWhitespace && hasNewline`)
|
|
* T T T T (Invalid `never && allowNewlines`)
|
|
* T T T F (Invalid `never && allowNewlines`)
|
|
* T F T F Unexpected space between function name and paren.
|
|
* T F T T Unexpected space between function name and paren.
|
|
* T F F T (Invalid `!hasWhitespace && hasNewline`)
|
|
* T F F F (OK)
|
|
*
|
|
* T T Unexpected space between function name and paren.
|
|
* F F Missing space between function name and paren.
|
|
* F F T Unexpected newline between function name and paren.
|
|
*/
|
|
|
|
if (never && hasWhitespace) {
|
|
context.report({
|
|
node,
|
|
loc: {
|
|
start: leftToken.loc.end,
|
|
end: {
|
|
line: rightToken.loc.start.line,
|
|
column: rightToken.loc.start.column - 1
|
|
}
|
|
},
|
|
messageId: "unexpectedWhitespace",
|
|
fix(fixer) {
|
|
|
|
// Don't remove comments.
|
|
if (sourceCode.commentsExistBetween(leftToken, rightToken)) {
|
|
return null;
|
|
}
|
|
|
|
// If `?.` exists, it doesn't hide no-unexpected-multiline errors
|
|
if (node.optional) {
|
|
return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], "?.");
|
|
}
|
|
|
|
/*
|
|
* Only autofix if there is no newline
|
|
* https://github.com/eslint/eslint/issues/7787
|
|
*/
|
|
if (hasNewline) {
|
|
return null;
|
|
}
|
|
return fixer.removeRange([leftToken.range[1], rightToken.range[0]]);
|
|
}
|
|
});
|
|
} else if (!never && !hasWhitespace) {
|
|
context.report({
|
|
node,
|
|
loc: {
|
|
start: {
|
|
line: leftToken.loc.end.line,
|
|
column: leftToken.loc.end.column - 1
|
|
},
|
|
end: rightToken.loc.start
|
|
},
|
|
messageId: "missing",
|
|
fix(fixer) {
|
|
if (node.optional) {
|
|
return null; // Not sure if inserting a space to either before/after `?.` token.
|
|
}
|
|
return fixer.insertTextBefore(rightToken, " ");
|
|
}
|
|
});
|
|
} else if (!never && !allowNewlines && hasNewline) {
|
|
context.report({
|
|
node,
|
|
loc: {
|
|
start: leftToken.loc.end,
|
|
end: rightToken.loc.start
|
|
},
|
|
messageId: "unexpectedNewline",
|
|
fix(fixer) {
|
|
|
|
/*
|
|
* Only autofix if there is no newline
|
|
* https://github.com/eslint/eslint/issues/7787
|
|
* But if `?.` exists, it doesn't hide no-unexpected-multiline errors
|
|
*/
|
|
if (!node.optional) {
|
|
return null;
|
|
}
|
|
|
|
// Don't remove comments.
|
|
if (sourceCode.commentsExistBetween(leftToken, rightToken)) {
|
|
return null;
|
|
}
|
|
|
|
const range = [leftToken.range[1], rightToken.range[0]];
|
|
const qdToken = sourceCode.getTokenAfter(leftToken);
|
|
|
|
if (qdToken.range[0] === leftToken.range[1]) {
|
|
return fixer.replaceTextRange(range, "?. ");
|
|
}
|
|
if (qdToken.range[1] === rightToken.range[0]) {
|
|
return fixer.replaceTextRange(range, " ?.");
|
|
}
|
|
return fixer.replaceTextRange(range, " ?. ");
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
return {
|
|
"CallExpression, NewExpression"(node) {
|
|
const lastToken = sourceCode.getLastToken(node);
|
|
const lastCalleeToken = sourceCode.getLastToken(node.callee);
|
|
const parenToken = sourceCode.getFirstTokenBetween(lastCalleeToken, lastToken, astUtils.isOpeningParenToken);
|
|
const prevToken = parenToken && sourceCode.getTokenBefore(parenToken, astUtils.isNotQuestionDotToken);
|
|
|
|
// Parens in NewExpression are optional
|
|
if (!(parenToken && parenToken.range[1] < node.range[1])) {
|
|
return;
|
|
}
|
|
|
|
checkSpacing(node, prevToken, parenToken);
|
|
},
|
|
|
|
ImportExpression(node) {
|
|
const leftToken = sourceCode.getFirstToken(node);
|
|
const rightToken = sourceCode.getTokenAfter(leftToken);
|
|
|
|
checkSpacing(node, leftToken, rightToken);
|
|
}
|
|
};
|
|
|
|
}
|
|
};
|