package ast import "code.osinet.fr/fgm/waiig15/token" // Identifier is the Node type for identifiers. type Identifier struct { Token token.Token // the token.IDENT token. Why do we need it ? Value string // The identifier string. } func (i *Identifier) expressionNode() {} // TokenLiteral satisfies the Node interface. func (i *Identifier) TokenLiteral() string { return i.Token.Literal }