diff --git a/packages/compiler-core/src/babelUtils.ts b/packages/compiler-core/src/babelUtils.ts index 571f6175643..738bf6ad353 100644 --- a/packages/compiler-core/src/babelUtils.ts +++ b/packages/compiler-core/src/babelUtils.ts @@ -1,5 +1,6 @@ -import { - isReferenced, +// should only use types from @babel/types +// do not import runtime methods +import type { Identifier, Node, Function, @@ -243,3 +244,181 @@ export const isStaticProperty = (node: Node): node is ObjectProperty => export const isStaticPropertyKey = (node: Node, parent: Node) => isStaticProperty(parent) && parent.key === node + +/** + * Copied from https://github.com/babel/babel/blob/main/packages/babel-types/src/validators/isReferenced.ts + * To avoid runtime dependency on @babel/types (which includes process references) + * This file should not change very often in babel but we may need to keep it + * up-to-date from time to time. + * + * https://github.com/babel/babel/blob/main/LICENSE + * + */ +function isReferenced(node: Node, parent: Node, grandparent?: Node): boolean { + switch (parent.type) { + // yes: PARENT[NODE] + // yes: NODE.child + // no: parent.NODE + case 'MemberExpression': + case 'OptionalMemberExpression': + if (parent.property === node) { + return !!parent.computed + } + return parent.object === node + + case 'JSXMemberExpression': + return parent.object === node + // no: let NODE = init; + // yes: let id = NODE; + case 'VariableDeclarator': + return parent.init === node + + // yes: () => NODE + // no: (NODE) => {} + case 'ArrowFunctionExpression': + return parent.body === node + + // no: class { #NODE; } + // no: class { get #NODE() {} } + // no: class { #NODE() {} } + // no: class { fn() { return this.#NODE; } } + case 'PrivateName': + return false + + // no: class { NODE() {} } + // yes: class { [NODE]() {} } + // no: class { foo(NODE) {} } + case 'ClassMethod': + case 'ClassPrivateMethod': + case 'ObjectMethod': + if (parent.key === node) { + return !!parent.computed + } + return false + + // yes: { [NODE]: "" } + // no: { NODE: "" } + // depends: { NODE } + // depends: { key: NODE } + case 'ObjectProperty': + if (parent.key === node) { + return !!parent.computed + } + // parent.value === node + return !grandparent || grandparent.type !== 'ObjectPattern' + // no: class { NODE = value; } + // yes: class { [NODE] = value; } + // yes: class { key = NODE; } + case 'ClassProperty': + if (parent.key === node) { + return !!parent.computed + } + return true + case 'ClassPrivateProperty': + return parent.key !== node + + // no: class NODE {} + // yes: class Foo extends NODE {} + case 'ClassDeclaration': + case 'ClassExpression': + return parent.superClass === node + + // yes: left = NODE; + // no: NODE = right; + case 'AssignmentExpression': + return parent.right === node + + // no: [NODE = foo] = []; + // yes: [foo = NODE] = []; + case 'AssignmentPattern': + return parent.right === node + + // no: NODE: for (;;) {} + case 'LabeledStatement': + return false + + // no: try {} catch (NODE) {} + case 'CatchClause': + return false + + // no: function foo(...NODE) {} + case 'RestElement': + return false + + case 'BreakStatement': + case 'ContinueStatement': + return false + + // no: function NODE() {} + // no: function foo(NODE) {} + case 'FunctionDeclaration': + case 'FunctionExpression': + return false + + // no: export NODE from "foo"; + // no: export * as NODE from "foo"; + case 'ExportNamespaceSpecifier': + case 'ExportDefaultSpecifier': + return false + + // no: export { foo as NODE }; + // yes: export { NODE as foo }; + // no: export { NODE as foo } from "foo"; + case 'ExportSpecifier': + // @ts-expect-error + if (grandparent?.source) { + return false + } + return parent.local === node + + // no: import NODE from "foo"; + // no: import * as NODE from "foo"; + // no: import { NODE as foo } from "foo"; + // no: import { foo as NODE } from "foo"; + // no: import NODE from "bar"; + case 'ImportDefaultSpecifier': + case 'ImportNamespaceSpecifier': + case 'ImportSpecifier': + return false + + // no: import "foo" assert { NODE: "json" } + case 'ImportAttribute': + return false + + // no:
+ case 'JSXAttribute': + return false + + // no: [NODE] = []; + // no: ({ NODE }) = []; + case 'ObjectPattern': + case 'ArrayPattern': + return false + + // no: new.NODE + // no: NODE.target + case 'MetaProperty': + return false + + // yes: type X = { somePropert: NODE } + // no: type X = { NODE: OtherType } + case 'ObjectTypeProperty': + return parent.key !== node + + // yes: enum X { Foo = NODE } + // no: enum X { NODE } + case 'TSEnumMember': + return parent.id !== node + + // yes: { [NODE]: value } + // no: { NODE: value } + case 'TSPropertySignature': + if (parent.key === node) { + return !!parent.computed + } + + return true + } + + return true +}