mirror of
https://github.com/joelwmale/webhook-action.git
synced 2024-12-04 21:24:29 +01:00
244 lines
8.2 KiB
JavaScript
244 lines
8.2 KiB
JavaScript
|
/**
|
||
|
* @fileoverview Rule to disallow mixed binary operators.
|
||
|
* @author Toru Nagashima
|
||
|
*/
|
||
|
|
||
|
"use strict";
|
||
|
|
||
|
//------------------------------------------------------------------------------
|
||
|
// Requirements
|
||
|
//------------------------------------------------------------------------------
|
||
|
|
||
|
const astUtils = require("./utils/ast-utils.js");
|
||
|
|
||
|
//------------------------------------------------------------------------------
|
||
|
// Helpers
|
||
|
//------------------------------------------------------------------------------
|
||
|
|
||
|
const ARITHMETIC_OPERATORS = ["+", "-", "*", "/", "%", "**"];
|
||
|
const BITWISE_OPERATORS = ["&", "|", "^", "~", "<<", ">>", ">>>"];
|
||
|
const COMPARISON_OPERATORS = ["==", "!=", "===", "!==", ">", ">=", "<", "<="];
|
||
|
const LOGICAL_OPERATORS = ["&&", "||"];
|
||
|
const RELATIONAL_OPERATORS = ["in", "instanceof"];
|
||
|
const TERNARY_OPERATOR = ["?:"];
|
||
|
const COALESCE_OPERATOR = ["??"];
|
||
|
const ALL_OPERATORS = [].concat(
|
||
|
ARITHMETIC_OPERATORS,
|
||
|
BITWISE_OPERATORS,
|
||
|
COMPARISON_OPERATORS,
|
||
|
LOGICAL_OPERATORS,
|
||
|
RELATIONAL_OPERATORS,
|
||
|
TERNARY_OPERATOR,
|
||
|
COALESCE_OPERATOR
|
||
|
);
|
||
|
const DEFAULT_GROUPS = [
|
||
|
ARITHMETIC_OPERATORS,
|
||
|
BITWISE_OPERATORS,
|
||
|
COMPARISON_OPERATORS,
|
||
|
LOGICAL_OPERATORS,
|
||
|
RELATIONAL_OPERATORS
|
||
|
];
|
||
|
const TARGET_NODE_TYPE = /^(?:Binary|Logical|Conditional)Expression$/u;
|
||
|
|
||
|
/**
|
||
|
* Normalizes options.
|
||
|
* @param {Object|undefined} options A options object to normalize.
|
||
|
* @returns {Object} Normalized option object.
|
||
|
*/
|
||
|
function normalizeOptions(options = {}) {
|
||
|
const hasGroups = options.groups && options.groups.length > 0;
|
||
|
const groups = hasGroups ? options.groups : DEFAULT_GROUPS;
|
||
|
const allowSamePrecedence = options.allowSamePrecedence !== false;
|
||
|
|
||
|
return {
|
||
|
groups,
|
||
|
allowSamePrecedence
|
||
|
};
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Checks whether any group which includes both given operator exists or not.
|
||
|
* @param {Array.<string[]>} groups A list of groups to check.
|
||
|
* @param {string} left An operator.
|
||
|
* @param {string} right Another operator.
|
||
|
* @returns {boolean} `true` if such group existed.
|
||
|
*/
|
||
|
function includesBothInAGroup(groups, left, right) {
|
||
|
return groups.some(group => group.indexOf(left) !== -1 && group.indexOf(right) !== -1);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Checks whether the given node is a conditional expression and returns the test node else the left node.
|
||
|
* @param {ASTNode} node A node which can be a BinaryExpression or a LogicalExpression node.
|
||
|
* This parent node can be BinaryExpression, LogicalExpression
|
||
|
* , or a ConditionalExpression node
|
||
|
* @returns {ASTNode} node the appropriate node(left or test).
|
||
|
*/
|
||
|
function getChildNode(node) {
|
||
|
return node.type === "ConditionalExpression" ? node.test : node.left;
|
||
|
}
|
||
|
|
||
|
//------------------------------------------------------------------------------
|
||
|
// Rule Definition
|
||
|
//------------------------------------------------------------------------------
|
||
|
|
||
|
module.exports = {
|
||
|
meta: {
|
||
|
type: "suggestion",
|
||
|
|
||
|
docs: {
|
||
|
description: "disallow mixed binary operators",
|
||
|
category: "Stylistic Issues",
|
||
|
recommended: false,
|
||
|
url: "https://eslint.org/docs/rules/no-mixed-operators"
|
||
|
},
|
||
|
|
||
|
schema: [
|
||
|
{
|
||
|
type: "object",
|
||
|
properties: {
|
||
|
groups: {
|
||
|
type: "array",
|
||
|
items: {
|
||
|
type: "array",
|
||
|
items: { enum: ALL_OPERATORS },
|
||
|
minItems: 2,
|
||
|
uniqueItems: true
|
||
|
},
|
||
|
uniqueItems: true
|
||
|
},
|
||
|
allowSamePrecedence: {
|
||
|
type: "boolean",
|
||
|
default: true
|
||
|
}
|
||
|
},
|
||
|
additionalProperties: false
|
||
|
}
|
||
|
],
|
||
|
|
||
|
messages: {
|
||
|
unexpectedMixedOperator: "Unexpected mix of '{{leftOperator}}' and '{{rightOperator}}'."
|
||
|
}
|
||
|
},
|
||
|
|
||
|
create(context) {
|
||
|
const sourceCode = context.getSourceCode();
|
||
|
const options = normalizeOptions(context.options[0]);
|
||
|
|
||
|
/**
|
||
|
* Checks whether a given node should be ignored by options or not.
|
||
|
* @param {ASTNode} node A node to check. This is a BinaryExpression
|
||
|
* node or a LogicalExpression node. This parent node is one of
|
||
|
* them, too.
|
||
|
* @returns {boolean} `true` if the node should be ignored.
|
||
|
*/
|
||
|
function shouldIgnore(node) {
|
||
|
const a = node;
|
||
|
const b = node.parent;
|
||
|
|
||
|
return (
|
||
|
!includesBothInAGroup(options.groups, a.operator, b.type === "ConditionalExpression" ? "?:" : b.operator) ||
|
||
|
(
|
||
|
options.allowSamePrecedence &&
|
||
|
astUtils.getPrecedence(a) === astUtils.getPrecedence(b)
|
||
|
)
|
||
|
);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Checks whether the operator of a given node is mixed with parent
|
||
|
* node's operator or not.
|
||
|
* @param {ASTNode} node A node to check. This is a BinaryExpression
|
||
|
* node or a LogicalExpression node. This parent node is one of
|
||
|
* them, too.
|
||
|
* @returns {boolean} `true` if the node was mixed.
|
||
|
*/
|
||
|
function isMixedWithParent(node) {
|
||
|
|
||
|
return (
|
||
|
node.operator !== node.parent.operator &&
|
||
|
!astUtils.isParenthesised(sourceCode, node)
|
||
|
);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Checks whether the operator of a given node is mixed with a
|
||
|
* conditional expression.
|
||
|
* @param {ASTNode} node A node to check. This is a conditional
|
||
|
* expression node
|
||
|
* @returns {boolean} `true` if the node was mixed.
|
||
|
*/
|
||
|
function isMixedWithConditionalParent(node) {
|
||
|
return !astUtils.isParenthesised(sourceCode, node) && !astUtils.isParenthesised(sourceCode, node.test);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Gets the operator token of a given node.
|
||
|
* @param {ASTNode} node A node to check. This is a BinaryExpression
|
||
|
* node or a LogicalExpression node.
|
||
|
* @returns {Token} The operator token of the node.
|
||
|
*/
|
||
|
function getOperatorToken(node) {
|
||
|
return sourceCode.getTokenAfter(getChildNode(node), astUtils.isNotClosingParenToken);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Reports both the operator of a given node and the operator of the
|
||
|
* parent node.
|
||
|
* @param {ASTNode} node A node to check. This is a BinaryExpression
|
||
|
* node or a LogicalExpression node. This parent node is one of
|
||
|
* them, too.
|
||
|
* @returns {void}
|
||
|
*/
|
||
|
function reportBothOperators(node) {
|
||
|
const parent = node.parent;
|
||
|
const left = (getChildNode(parent) === node) ? node : parent;
|
||
|
const right = (getChildNode(parent) !== node) ? node : parent;
|
||
|
const data = {
|
||
|
leftOperator: left.operator || "?:",
|
||
|
rightOperator: right.operator || "?:"
|
||
|
};
|
||
|
|
||
|
context.report({
|
||
|
node: left,
|
||
|
loc: getOperatorToken(left).loc,
|
||
|
messageId: "unexpectedMixedOperator",
|
||
|
data
|
||
|
});
|
||
|
context.report({
|
||
|
node: right,
|
||
|
loc: getOperatorToken(right).loc,
|
||
|
messageId: "unexpectedMixedOperator",
|
||
|
data
|
||
|
});
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Checks between the operator of this node and the operator of the
|
||
|
* parent node.
|
||
|
* @param {ASTNode} node A node to check.
|
||
|
* @returns {void}
|
||
|
*/
|
||
|
function check(node) {
|
||
|
if (TARGET_NODE_TYPE.test(node.parent.type)) {
|
||
|
if (node.parent.type === "ConditionalExpression" && !shouldIgnore(node) && isMixedWithConditionalParent(node.parent)) {
|
||
|
reportBothOperators(node);
|
||
|
} else {
|
||
|
if (TARGET_NODE_TYPE.test(node.parent.type) &&
|
||
|
isMixedWithParent(node) &&
|
||
|
!shouldIgnore(node)
|
||
|
) {
|
||
|
reportBothOperators(node);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
return {
|
||
|
BinaryExpression: check,
|
||
|
LogicalExpression: check
|
||
|
};
|
||
|
}
|
||
|
};
|