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64 lines
1.9 KiB
64 lines
1.9 KiB
/**
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* @fileoverview Rule to ensure newline per method call when chaining calls
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* @author Rajendra Patil
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* @author Burak Yigit Kaya
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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 = {
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meta: {
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docs: {
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description: "require a newline after each call in a method chain",
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category: "Stylistic Issues",
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recommended: false
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},
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schema: [{
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type: "object",
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properties: {
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ignoreChainWithDepth: {
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type: "integer",
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minimum: 1,
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maximum: 10
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}
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},
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additionalProperties: false
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}]
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},
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create: function(context) {
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var options = context.options[0] || {},
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ignoreChainWithDepth = options.ignoreChainWithDepth || 2;
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return {
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"CallExpression:exit": function(node) {
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if (!node.callee || node.callee.type !== "MemberExpression") {
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return;
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}
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var callee = node.callee;
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var parent = callee.object;
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var depth = 1;
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while (parent && parent.callee) {
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depth += 1;
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parent = parent.callee.object;
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}
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if (depth > ignoreChainWithDepth && callee.property.loc.start.line === callee.object.loc.end.line) {
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context.report(
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callee.property,
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callee.property.loc.start,
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"Expected line break after `" + context.getSource(callee.object).replace(/\r\n|\r|\n/g, "\\n") + "`."
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);
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}
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}
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};
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}
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};
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