AddComment adds the given comment to the node if it supports it.

Comments returns all comments associated with a given node.

IsValidIdent reports whether str is a valid identifier.

SetComments replaces all comments of n with the given set of comments.

SetRelPos sets the relative position of a node without modifying its file position.

Walk traverses an AST in depth-first order: It starts by calling f(node); node must not be nil.

A BadDecl node is a placeholder for declarations containing syntax errors for which no correct declaration nodes can be created.

A BadExpr node is a placeholder for expressions containing syntax errors for which no correct expression nodes can be created.

A BasicLit node represents a literal of basic type.

A BinaryExpr node represents a binary expression.

A CallExpr node represents an expression followed by an argument list.

A Comment node represents a single //-style.

A CommentGroup represents a sequence of comments with no other tokens and no empty lines between.

An Else node represents an else or else if expression after an if expression.

An EmbedDecl node represents a single expression used as a declaration.

A Field represents a field declaration in a struct.

A File node represents a Go source file.

A For node represents a for expression.

A ForClause node represents a for clause in a comprehension.

A Func node represents a function expression.

An Ident node represents an left-hand side identifier,.

A If node represents an if expression.

A IfClause node represents an if guard clause in a comprehension.

An IndexExpr node represents an expression followed by an index.

A Lambda node represents a lambda function expression.

A LetClause node represents a let clause in a comprehension.

A ListComprehension node represents literal list with and embedded for expression.

A ListLit node represents a literal list.

A ParenExpr node represents a parenthesized expression.

A SchemaLit node represents a literal schema definition.

A SelectorExpr node represents an expression followed by a selector.

An SliceExpr node represents an expression followed by slice indices.

A StructLit node represents a literal struct.

A UnaryExpr node represents a unary expression.

Clause nodes are part of comprehensions.

A Decl node is implemented by all declarations.

An Expr is implemented by all expression nodes.

A Label is any production that can be used as a LHS label.

A Node represents any node in the abstract syntax tree.