ContainsTag checks if /* */ comments contain annotations, which may mean that it is phpdoc, but there is a mistake when there is one asterisk instead of two at the beginning of a comment.

IsPHPDoc checks if the string is a doc comment.

IsPHPDocToken checks if the token is a doc comment.

IsSuspicious checks that phpdoc starts with /* but has tags inside it.

Parse returns parsed doc comment with interesting parts (ones that start "* @").

ExprArray is `elem[]` or `[]elem` type.

ExprGeneric is a parametrized `expr<T,...>` type.

ExprInt is a digit-only type expression.

ExprInter is `x&y` type.

ExprInvalid represents "failed to parse" type expression.

ExprKeyVal is `key:val` type.

ExprLiteral is a single quoted string value.

ExprMemberType is access to member.

ExprName is a type that is identified by its name.

ExprNot is `!expr` type.

ExprNullable is `?expr` type.

ExprOptional is `expr?` type.

ExprParen is `(expr)` type.

ExprSpecialName is a special name-like type node.

ExprTypedCallable is a parametrized `callable(A,...):B` type.

ExprUnion is `x|y` type.

ExprUnknown is a garbage-prefixed type expression.