67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
const t = require('@babel/types')
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const babelTraverse = require('@babel/traverse').default
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const {
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METHOD_RENDER_LIST
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} = require('../constants')
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function getDataPath (identifier, parent, scope) {
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if (
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!(t.isCallExpression(parent)) &&
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// not id of a Declaration
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!(t.isDeclaration(parent) && parent.id === identifier) &&
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// not a params of a function
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!(t.isFunction(parent) && parent.params.indexOf(identifier) > -1) &&
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// not a key of Property
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!(parent.type === 'ObjectProperty' && parent.key === identifier && !parent.computed) &&
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// not in an Array destructure pattern
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!(parent.type === 'ArrayPattern') &&
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// not in an Object destructure pattern
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!(parent.parent && parent.parent.type === 'ObjectPattern') &&
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// not already in scope
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!scope.hasBinding(identifier.name)
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) {
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return identifier.name
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}
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}
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function getDataPathByMemberExpression (node, ret) {
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if (t.isMemberExpression(node.object)) {
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getDataPathByMemberExpression(node.object, ret)
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} else if (t.isIdentifier(node.object)) {
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ret.push(node.object.name)
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}
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ret.push(node.property.name || node.property.value)
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}
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const visitor = {
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Identifier (path) {
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const dataPath = getDataPath(path.node, path.parent, path.scope)
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if (dataPath) {
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console.log('....identifier', dataPath)
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} else {
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// console.log('....ignore', path.node.name)
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}
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},
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MemberExpression (path) {
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const dataPathArray = []
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getDataPathByMemberExpression(path.node, dataPathArray)
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path.skip()
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},
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CallExpression (path) {
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const callee = path.node.callee
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if (callee.name === METHOD_RENDER_LIST) {
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// for
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// path.skip()
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}
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}
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}
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module.exports = function traverse (ast, state) {
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const data = Object.create(null)
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babelTraverse(ast, visitor, undefined, {
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data
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})
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}
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