paradiego

node_modules/eslint-plugin-react/lib/rules/jsx-equals-spacing.js

@@ -0,0 +1,112 @@
+/**
+ * @fileoverview Disallow or enforce spaces around equal signs in JSX attributes.
+ * @author ryym
+ */
+
+'use strict';
+
+const docsUrl = require('../util/docsUrl');
+const getSourceCode = require('../util/eslint').getSourceCode;
+const report = require('../util/report');
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+const messages = {
+  noSpaceBefore: 'There should be no space before \'=\'',
+  noSpaceAfter: 'There should be no space after \'=\'',
+  needSpaceBefore: 'A space is required before \'=\'',
+  needSpaceAfter: 'A space is required after \'=\'',
+};
+
+/** @type {import('eslint').Rule.RuleModule} */
+module.exports = {
+  meta: {
+    docs: {
+      description: 'Enforce or disallow spaces around equal signs in JSX attributes',
+      category: 'Stylistic Issues',
+      recommended: false,
+      url: docsUrl('jsx-equals-spacing'),
+    },
+    fixable: 'code',
+
+    messages,
+
+    schema: [{
+      enum: ['always', 'never'],
+    }],
+  },
+
+  create(context) {
+    const config = context.options[0] || 'never';
+
+    /**
+     * Determines a given attribute node has an equal sign.
+     * @param {ASTNode} attrNode - The attribute node.
+     * @returns {boolean} Whether or not the attriute node has an equal sign.
+     */
+    function hasEqual(attrNode) {
+      return attrNode.type !== 'JSXSpreadAttribute' && attrNode.value !== null;
+    }
+
+    // --------------------------------------------------------------------------
+    // Public
+    // --------------------------------------------------------------------------
+
+    return {
+      JSXOpeningElement(node) {
+        node.attributes.forEach((attrNode) => {
+          if (!hasEqual(attrNode)) {
+            return;
+          }
+
+          const sourceCode = getSourceCode(context);
+          const equalToken = sourceCode.getTokenAfter(attrNode.name);
+          const spacedBefore = sourceCode.isSpaceBetweenTokens(attrNode.name, equalToken);
+          const spacedAfter = sourceCode.isSpaceBetweenTokens(equalToken, attrNode.value);
+
+          if (config === 'never') {
+            if (spacedBefore) {
+              report(context, messages.noSpaceBefore, 'noSpaceBefore', {
+                node: attrNode,
+                loc: equalToken.loc.start,
+                fix(fixer) {
+                  return fixer.removeRange([attrNode.name.range[1], equalToken.range[0]]);
+                },
+              });
+            }
+            if (spacedAfter) {
+              report(context, messages.noSpaceAfter, 'noSpaceAfter', {
+                node: attrNode,
+                loc: equalToken.loc.start,
+                fix(fixer) {
+                  return fixer.removeRange([equalToken.range[1], attrNode.value.range[0]]);
+                },
+              });
+            }
+          } else if (config === 'always') {
+            if (!spacedBefore) {
+              report(context, messages.needSpaceBefore, 'needSpaceBefore', {
+                node: attrNode,
+                loc: equalToken.loc.start,
+                fix(fixer) {
+                  return fixer.insertTextBefore(equalToken, ' ');
+                },
+              });
+            }
+            if (!spacedAfter) {
+              report(context, messages.needSpaceAfter, 'needSpaceAfter', {
+                node: attrNode,
+                loc: equalToken.loc.start,
+                fix(fixer) {
+                  return fixer.insertTextAfter(equalToken, ' ');
+                },
+              });
+            }
+          }
+        });
+      },
+    };
+  },
+};