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new operator 'in': it returns true if a item belongs to a list or if a key belongs to a dict

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This commit is contained in:
Celestino Amoroso 2024-05-19 01:44:50 +02:00
parent a543360151
commit 9ea170e53b
1 changed files with 6 additions and 6 deletions
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12
operator-in.go
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@ -16,10 +16,10 @@ func newInTerm(tk *Token) (inst *term) {
}
}
func hasKey(d map[any]any, target any) (ok bool) {
_, ok = d[target]
return
}
// func hasKey(d map[any]any, target any) (ok bool) {
// _, ok = d[target]
// return
// }
func evalIn(ctx ExprContext, self *term) (v any, err error) {
var leftValue, rightValue any
@ -32,8 +32,8 @@ func evalIn(ctx ExprContext, self *term) (v any, err error) {
list, _ := rightValue.(*ListType)
v = list.indexDeepCmp(leftValue) >= 0
} else if IsDict(rightValue) {
d, _ := rightValue.(map[any]any)
v = hasKey(d, leftValue)
dict, _ := rightValue.(*DictType)
v = dict.hasKey(leftValue)
} else {
err = self.errIncompatibleTypes(leftValue, rightValue)
}