parser

type AssignNode struct {
	Name  tokens.Token
	Value Node
}

type BinaryNode struct {
	Op    tokens.Token
	Left  Node
	Right Node
}

type CommentNode struct {
	Text string
	Tok  tokens.Token
	Expr Node
}

type Env struct {
	// contains filtered or unexported fields
}

type IdentNode struct {
	Name tokens.Token
}

type Node interface {
	Eval(*Env) (*unified.Real, error)
}

type NumberNode struct {
	Value *unified.Real
}

type P struct {
	// contains filtered or unexported fields
}

type UnaryNode struct {
	Op   tokens.Token
	Expr Node
}