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Canonical code style linter and formatter for JavaScript, SCSS and CSS.
142 lines (112 loc) • 13.5 kB
JavaScript
'use strict';
var _Map = require('babel-runtime/core-js/map')['default'];
var _getIterator = require('babel-runtime/core-js/get-iterator')['default'];
var _interopRequireDefault = require('babel-runtime/helpers/interop-require-default')['default'];
var _coreGetExports = require('../core/getExports');
var _coreGetExports2 = _interopRequireDefault(_coreGetExports);
var _importDeclaration = require('../importDeclaration');
var _importDeclaration2 = _interopRequireDefault(_importDeclaration);
module.exports = function (context) {
var namespaces = new _Map();
function getImportsAndReport(namespace) {
var declaration = (0, _importDeclaration2['default'])(context);
var imports = _coreGetExports2['default'].get(declaration.source.value, context);
if (imports == null) return null;
if (imports.errors.length) {
context.report({
node: declaration.source,
message: 'Parse errors in imported module ' + ('\'' + declaration.source.value + '\'.')
});
return;
}
if (!imports.hasNamed) {
context.report(namespace, 'No exported names found in module \'' + declaration.source.value + '\'.');
}
return imports;
}
function message(identifier, namespace) {
return '\'' + identifier.name + '\' not found in imported namespace ' + namespace.name + '.';
}
function declaredScope(name) {
var references = context.getScope().references,
i = undefined;
for (i = 0; i < references.length; i++) {
if (references[i].identifier.name === name) {
break;
}
}
if (!references[i]) return undefined;
return references[i].resolved.scope.type;
}
return {
'ImportNamespaceSpecifier': function ImportNamespaceSpecifier(namespace) {
var imports = getImportsAndReport(namespace);
if (imports == null) return;
namespaces.set(namespace.local.name, imports.named);
},
// same as above, but does not add names to local map
'ExportNamespaceSpecifier': function ExportNamespaceSpecifier(namespace) {
getImportsAndReport(namespace);
},
// todo: check for possible redefinition
'MemberExpression': function MemberExpression(dereference) {
if (dereference.object.type !== 'Identifier') return;
if (!namespaces.has(dereference.object.name)) return;
if (dereference.parent.type === 'AssignmentExpression' && dereference.parent.left === dereference) {
context.report(dereference.parent, 'Assignment to member of namespace \'' + dereference.object.name + '\'.');
}
if (dereference.computed) {
context.report(dereference.property, 'Unable to validate computed reference to imported namespace \'' + dereference.object.name + '\'.');
return;
}
var namespace = namespaces.get(dereference.object.name);
if (!namespace.has(dereference.property.name)) {
context.report(dereference.property, message(dereference.property, dereference.object));
}
},
'VariableDeclarator': function VariableDeclarator(_ref) {
var id = _ref.id;
var init = _ref.init;
if (init == null) return;
if (id.type !== 'ObjectPattern') return;
if (init.type !== 'Identifier') return;
if (!namespaces.has(init.name)) return;
// check for redefinition in intermediate scopes
if (declaredScope(init.name) !== 'module') return;
var namespace = namespaces.get(init.name);
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;
try {
for (var _iterator = _getIterator(id.properties), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var property = _step.value;
if (property.key.type !== 'Identifier') {
context.report({
node: property,
message: 'Only destructure top-level names.'
});
} else if (!namespace.has(property.key.name)) {
context.report({
node: property,
message: message(property.key, init)
});
}
}
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator['return']) {
_iterator['return']();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}
}
};
};
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i < references.length; i++) {\n      if (references[i].identifier.name === name) {\n        break\n      }\n    }\n    if (!references[i]) return undefined\n    return references[i].resolved.scope.type\n  }\n\n  return {\n    'ImportNamespaceSpecifier': function (namespace) {\n      const imports = getImportsAndReport(namespace)\n      if (imports == null) return\n      namespaces.set(namespace.local.name, imports.named)\n    },\n\n    // same as above, but does not add names to local map\n    'ExportNamespaceSpecifier': function (namespace) {\n      getImportsAndReport(namespace)\n    },\n\n    // todo: check for possible redefinition\n\n    'MemberExpression': function (dereference) {\n      if (dereference.object.type !== 'Identifier') return\n      if (!namespaces.has(dereference.object.name)) return\n\n      if (dereference.parent.type === 'AssignmentExpression' &&\n          dereference.parent.left === dereference) {\n          context.report(dereference.parent,\n              `Assignment to member of namespace '${dereference.object.name}'.`)\n      }\n\n      if (dereference.computed) {\n        context.report(dereference.property,\n          'Unable to validate computed reference to imported namespace \\'' +\n          dereference.object.name + '\\'.')\n        return\n      }\n\n      var namespace = namespaces.get(dereference.object.name)\n      if (!namespace.has(dereference.property.name)) {\n        context.report( dereference.property\n                      , message(dereference.property, dereference.object)\n                      )\n      }\n    },\n\n    'VariableDeclarator': function ({ id, init }) {\n      if (init == null) return\n      if (id.type !== 'ObjectPattern') return\n      if (init.type !== 'Identifier') return\n      if (!namespaces.has(init.name)) return\n\n      // check for redefinition in intermediate scopes\n      if (declaredScope(init.name) !== 'module') return\n\n      const namespace = namespaces.get(init.name)\n\n      for (let property of id.properties) {\n        if (property.key.type !== 'Identifier') {\n          context.report({\n            node: property,\n            message: 'Only destructure top-level names.',\n          })\n        } else if (!namespace.has(property.key.name)) {\n          context.report({\n            node: property,\n            message: message(property.key, init),\n          })\n        }\n      }\n    },\n  }\n}\n"]}