Debug instructs the parser to print detailed parse information.

ErrorAt allows returning a parser error with a manually-defined position.

ErrorWith allows using an AST node as the position basis for a parser error message.

NewMessageVisitor creates a visitor that can return [ParserMessage]s for errors, warnings and hints.

Visitors adds additional visitors to the parsing pass.

MessageTape is a message appended to be used during tree-traversal.

MessageVisitor is a Visitor to generate informational messages.

ParserMessage is a message output by the parser.

Positioned refers to language features such as statements and identifiers that have a defined position in the query string.

Visitor is the interface that defines an AST visitor, which will visit nodes in a depth-first order.

MessageType is the type of a parser message.

ParseError is a detailed parser error.

VisitorFun is a function that can act as a visitor, meaning it will be called for every node in the tree, unless it chooses to skip.