// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.

// operand-list.go
package expr

// -------- list term
func newListTerm(args []*term) *term {
	return &term{
		tk:       *NewToken(0, 0, SymList, "[]"),
		class:    classVar,
		kind:     kindUnknown,
		parent:   nil,
		children: args,
		position: posLeaf,
		priority: priValue,
		evalFunc: evalList,
	}
}

// -------- list func
func evalList(ctx exprContext, self *term) (v any, err error) {
	items := make([]any, len(self.children))
	for i, tree := range self.children {
		var param any
		if param, err = tree.compute(ctx); err != nil {
			break
		}
		items[i] = param
	}
	if err == nil {
		v = items
	}
	return
}