Method Eval

ch7/eval/ast.go:9–9

Eval returns the value of this Expr in the environment env.

(env Env)

type Expr interface {
	// Eval returns the value of this Expr in the environment env.
	Eval(env Env) float64
	// Check reports errors in this Expr and adds its Vars to the set.
	Check(vars map[Var]bool) error
}