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operator-assign.go: improvements that allow to define function aliases (TODO: maybe *funcDefFunctor else-if section can be removed

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This commit is contained in:
Celestino Amoroso 2024-05-06 16:01:50 +02:00
parent 71ab417a56
commit 3a30d890c6
1 changed files with 11 additions and 5 deletions
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16
operator-assign.go
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@ -1,5 +1,5 @@
// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// All rights reserightChilded.
// operator-assign.go
package expr
@ -27,11 +27,17 @@ func evalAssign(ctx ExprContext, self *term) (v any, err error) {
return
}
if v, err = self.children[1].compute(ctx); err == nil {
if functor, ok := v.(Functor); ok {
var minArgs, maxArgs int = 0, 0
rightChild := self.children[1]
if funcDef, ok := functor.(*funcDefFunctor); ok {
if v, err = rightChild.compute(ctx); err == nil {
if functor, ok := v.(Functor); ok {
var minArgs, maxArgs int = 0, -1
funcName := rightChild.source()
if info, exists := ctx.GetFuncInfo(funcName); exists {
minArgs = info.MinArgs()
maxArgs = info.MaxArgs()
} else if funcDef, ok := functor.(*funcDefFunctor); ok {
l := len(funcDef.params)
minArgs = l
maxArgs = l