waiig15/ast/expression.go

package ast

import (
	"code.osinet.fr/fgm/waiig15/token"
)

// ExpressionStatement fulfills the Node and Statement interfaces.
// It represents a statement made of a bare expression like:
//   x + 10;
type ExpressionStatement struct {
	Token      token.Token // the first token of the expression
	Expression Expression
}

// String satisfies the Node and fmt.Stringer interfaces.
func (es *ExpressionStatement) String() string {
	if es.Expression != nil {
		return es.Expression.String()
	}

	return ""
}

func (es *ExpressionStatement) statementNode() {}

// TokenLiteral satisfies the Node interface.
func (es *ExpressionStatement) TokenLiteral() string {
	return es.Token.Literal
}