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58 lines
1.8 KiB
58 lines
1.8 KiB
/**
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* @fileoverview Rule to spot scenarios where a newline looks like it is ending a statement, but is not.
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* @author Glen Mailer
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* @copyright 2015 Glen Mailer
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = function(context) {
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var FUNCTION_MESSAGE = "Unexpected newline between function and ( of function call.";
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var PROPERTY_MESSAGE = "Unexpected newline between object and [ of property access.";
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/**
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* Check to see if the bracket prior to the node is continuing the previous
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* line's expression
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* @param {ASTNode} node The node to check.
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* @param {string} msg The error message to use.
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* @returns {void}
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* @private
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*/
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function checkForBreakBefore(node, msg) {
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var tokens = context.getTokensBefore(node, 2);
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var paren = tokens[1];
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var before = tokens[0];
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if (paren.loc.start.line !== before.loc.end.line) {
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context.report(node, paren.loc.start, msg, { char: paren.value });
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}
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}
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//--------------------------------------------------------------------------
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// Public API
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//--------------------------------------------------------------------------
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return {
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"MemberExpression": function(node) {
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if (!node.computed) {
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return;
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}
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checkForBreakBefore(node.property, PROPERTY_MESSAGE);
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},
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"CallExpression": function(node) {
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if (node.arguments.length === 0) {
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return;
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}
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checkForBreakBefore(node.arguments[0], FUNCTION_MESSAGE);
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}
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};
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};
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module.exports.schema = [];
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