init source

2022-03-07 22:07:57 +07:00
parent e4376f3777
commit 8aba590a8d
11240 changed files with 1012977 additions and 0 deletions
@@ -0,0 +1,109 @@
+'use strict';
+
+const docsUrl = require('../util/docsUrl');
+
+// This list is taken from https://developer.mozilla.org/en-US/docs/Web/HTML/Inline_elements
+const INLINE_ELEMENTS = new Set([
+  'a',
+  'abbr',
+  'acronym',
+  'b',
+  'bdo',
+  'big',
+  'br',
+  'button',
+  'cite',
+  'code',
+  'dfn',
+  'em',
+  'i',
+  'img',
+  'input',
+  'kbd',
+  'label',
+  'map',
+  'object',
+  'q',
+  'samp',
+  'script',
+  'select',
+  'small',
+  'span',
+  'strong',
+  'sub',
+  'sup',
+  'textarea',
+  'tt',
+  'var'
+]);
+
+module.exports = {
+  meta: {
+    docs: {
+      description: 'Ensures inline tags are not rendered without spaces between them',
+      category: 'Stylistic Issues',
+      recommended: false,
+      url: docsUrl('jsx-child-element-spacing')
+    },
+    fixable: false,
+    schema: [
+      {
+        type: 'object',
+        properties: {},
+        default: {},
+        additionalProperties: false
+      }
+    ]
+  },
+  create(context) {
+    const TEXT_FOLLOWING_ELEMENT_PATTERN = /^\s*\n\s*\S/;
+    const TEXT_PRECEDING_ELEMENT_PATTERN = /\S\s*\n\s*$/;
+
+    const elementName = node => (
+      node.openingElement &&
+      node.openingElement.name &&
+      node.openingElement.name.type === 'JSXIdentifier' &&
+      node.openingElement.name.name
+    );
+
+    const isInlineElement = node => (
+      node.type === 'JSXElement' &&
+      INLINE_ELEMENTS.has(elementName(node))
+    );
+
+    const handleJSX = (node) => {
+      let lastChild = null;
+      let child = null;
+      (node.children.concat([null])).forEach((nextChild) => {
+        if (
+          (lastChild || nextChild) &&
+          (!lastChild || isInlineElement(lastChild)) &&
+          (child && (child.type === 'Literal' || child.type === 'JSXText')) &&
+          (!nextChild || isInlineElement(nextChild)) &&
+          true
+        ) {
+          if (lastChild && child.value.match(TEXT_FOLLOWING_ELEMENT_PATTERN)) {
+            context.report({
+              node: lastChild,
+              loc: lastChild.loc.end,
+              message: `Ambiguous spacing after previous element ${elementName(lastChild)}`
+            });
+          } else if (nextChild && child.value.match(TEXT_PRECEDING_ELEMENT_PATTERN)) {
+            context.report({
+              node: nextChild,
+              loc: nextChild.loc.start,
+              message: `Ambiguous spacing before next element ${elementName(nextChild)}`
+            });
+          }
+        }
+        lastChild = child;
+        child = nextChild;
+      });
+    };
+
+    return {
+      JSXElement: handleJSX,
+      JSXFragment: handleJSX
+    };
+  }
+};