expr/operand-dict.go

36 lines
716 B
Go

// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// operand-dict.go
package expr
// -------- dict term
func newDictTerm(args map[any]*term) *term {
return &term{
tk: *NewValueToken(0, 0, SymDict, "{}", args),
parent: nil,
children: nil,
position: posLeaf,
priority: priValue,
evalFunc: evalDict,
}
}
// -------- dict func
func evalDict(ctx ExprContext, opTerm *term) (v any, err error) {
dict, _ := opTerm.value().(map[any]*term)
items := make(DictType, len(dict))
for key, tree := range dict {
var param any
if param, err = tree.compute(ctx); err != nil {
break
}
items[key] = param
}
if err == nil {
v = &items
}
return
}