Files
expr/operand-dict.go
T

40 lines
862 B
Go

// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// operand-dict.go
package expr
import (
"git.portale-stac.it/go-pkg/expr/kern"
"git.portale-stac.it/go-pkg/expr/scan"
)
// -------- dict term
func newDictTerm(args map[any]*scan.Term) *scan.Term {
return &scan.Term{
Tk: *scan.NewValueToken(0, 0, scan.SymDict, "{}", args),
Parent: nil,
Children: nil,
Position: scan.PosLeaf,
Priority: scan.PriValue,
EvalFunc: evalDict,
}
}
// -------- dict func
func evalDict(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
dict, _ := opTerm.Value().(map[any]*scan.Term)
items := make(kern.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
}