Go AST Example

Sample and notes for go abstract tree parsing and modification.

Reference Tutorials:

• Go Ast Traversal here
• Go Ast Manipulation here

Packages

• go/token: Defines constants representing the lexical tokens of the go programming language and basic operations on tokens (printing, predicates) "gopher" -> token.String
• go/scanner Implements scanner for go source text. Takes []byte and tokenize through repeated calls to scan method.
• go/ast declares types used to represent abstract syntax tree.
• go/parser Parses go source file and outputs AST. Parser package uses scanner and token package itself.
• go/printer prints ast in human readable format

ast.Inspect inspect traverses the ast node.