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6.8 KiB
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1 line
6.8 KiB
Plaintext
{"version":3,"names":["isReferenced","node","parent","grandparent","type","property","computed","object","init","body","key","superClass","right","source","local","id"],"sources":["../../src/validators/isReferenced.ts"],"sourcesContent":["import type * as t from \"../index.ts\";\n\n/**\n * Check if the input `node` is a reference to a bound variable.\n */\nexport default function isReferenced(\n node: t.Node,\n parent: t.Node,\n grandparent?: t.Node,\n): boolean {\n switch (parent.type) {\n // yes: PARENT[NODE]\n // yes: NODE.child\n // no: parent.NODE\n case \"MemberExpression\":\n case \"OptionalMemberExpression\":\n if (parent.property === node) {\n return !!parent.computed;\n }\n return parent.object === node;\n\n case \"JSXMemberExpression\":\n return parent.object === node;\n // no: let NODE = init;\n // yes: let id = NODE;\n case \"VariableDeclarator\":\n return parent.init === node;\n\n // yes: () => NODE\n // no: (NODE) => {}\n case \"ArrowFunctionExpression\":\n return parent.body === node;\n\n // no: class { #NODE; }\n // no: class { get #NODE() {} }\n // no: class { #NODE() {} }\n // no: class { fn() { return this.#NODE; } }\n case \"PrivateName\":\n return false;\n\n // no: class { NODE() {} }\n // yes: class { [NODE]() {} }\n // no: class { foo(NODE) {} }\n case \"ClassMethod\":\n case \"ClassPrivateMethod\":\n case \"ObjectMethod\":\n if (parent.key === node) {\n return !!parent.computed;\n }\n return false;\n\n // yes: { [NODE]: \"\" }\n // no: { NODE: \"\" }\n // depends: { NODE }\n // depends: { key: NODE }\n case \"ObjectProperty\":\n if (parent.key === node) {\n return !!parent.computed;\n }\n // parent.value === node\n return !grandparent || grandparent.type !== \"ObjectPattern\";\n // no: class { NODE = value; }\n // yes: class { [NODE] = value; }\n // yes: class { key = NODE; }\n case \"ClassProperty\":\n case \"ClassAccessorProperty\":\n if (parent.key === node) {\n return !!parent.computed;\n }\n return true;\n case \"ClassPrivateProperty\":\n return parent.key !== node;\n\n // no: class NODE {}\n // yes: class Foo extends NODE {}\n case \"ClassDeclaration\":\n case \"ClassExpression\":\n return parent.superClass === node;\n\n // yes: left = NODE;\n // no: NODE = right;\n case \"AssignmentExpression\":\n return parent.right === node;\n\n // no: [NODE = foo] = [];\n // yes: [foo = NODE] = [];\n case \"AssignmentPattern\":\n return parent.right === node;\n\n // no: NODE: for (;;) {}\n case \"LabeledStatement\":\n return false;\n\n // no: try {} catch (NODE) {}\n case \"CatchClause\":\n return false;\n\n // no: function foo(...NODE) {}\n case \"RestElement\":\n return false;\n\n case \"BreakStatement\":\n case \"ContinueStatement\":\n return false;\n\n // no: function NODE() {}\n // no: function foo(NODE) {}\n case \"FunctionDeclaration\":\n case \"FunctionExpression\":\n return false;\n\n // no: export NODE from \"foo\";\n // no: export * as NODE from \"foo\";\n case \"ExportNamespaceSpecifier\":\n case \"ExportDefaultSpecifier\":\n return false;\n\n // no: export { foo as NODE };\n // yes: export { NODE as foo };\n // no: export { NODE as foo } from \"foo\";\n case \"ExportSpecifier\":\n // @ts-expect-error todo(flow->ts): Property 'source' does not exist on type 'AnyTypeAnnotation'.\n if (grandparent?.source) {\n return false;\n }\n return parent.local === node;\n\n // no: import NODE from \"foo\";\n // no: import * as NODE from \"foo\";\n // no: import { NODE as foo } from \"foo\";\n // no: import { foo as NODE } from \"foo\";\n // no: import NODE from \"bar\";\n case \"ImportDefaultSpecifier\":\n case \"ImportNamespaceSpecifier\":\n case \"ImportSpecifier\":\n return false;\n\n // no: import \"foo\" assert { NODE: \"json\" }\n case \"ImportAttribute\":\n return false;\n\n // no: <div NODE=\"foo\" />\n case \"JSXAttribute\":\n return false;\n\n // no: [NODE] = [];\n // no: ({ NODE }) = [];\n case \"ObjectPattern\":\n case \"ArrayPattern\":\n return false;\n\n // no: new.NODE\n // no: NODE.target\n case \"MetaProperty\":\n return false;\n\n // yes: type X = { someProperty: NODE }\n // no: type X = { NODE: OtherType }\n case \"ObjectTypeProperty\":\n return parent.key !== node;\n\n // yes: enum X { Foo = NODE }\n // no: enum X { NODE }\n case \"TSEnumMember\":\n return parent.id !== node;\n\n // yes: { [NODE]: value }\n // no: { NODE: value }\n case \"TSPropertySignature\":\n if (parent.key === node) {\n return !!parent.computed;\n }\n\n return true;\n }\n\n return 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