go-pkg/expr
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new function isRational() that return true is the passed value is integere or fraction

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This commit is contained in:
Celestino Amoroso 2024-05-10 09:17:51 +02:00
parent 8c66d90532
commit 5a9b6525a2
2 changed files with 13 additions and 1 deletions
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7
func-base.go
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@ -43,6 +43,11 @@ func isFractionFunc(ctx ExprContext, name string, args []any) (result any, err e
return
}
func isRationalFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsRational(args[0])
return
}
func isListFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsList(args[0])
return
@ -53,7 +58,6 @@ func isDictionaryFunc(ctx ExprContext, name string, args []any) (result any, err
return
}
func intFunc(ctx ExprContext, name string, args []any) (result any, err error) {
if len(args) == 1 {
switch v := args[0].(type) {
@ -93,6 +97,7 @@ func ImportBuiltinsFuncs(ctx ExprContext) {
ctx.RegisterFunc("isString", &simpleFunctor{f: isStringFunc}, 1, 1)
ctx.RegisterFunc("isFraction", &simpleFunctor{f: isFractionFunc}, 1, 1)
ctx.RegisterFunc("isFract", &simpleFunctor{f: isFractionFunc}, 1, 1)
ctx.RegisterFunc("isRational", &simpleFunctor{f: isRationalFunc}, 1, 1)
ctx.RegisterFunc("isList", &simpleFunctor{f: isListFunc}, 1, 1)
ctx.RegisterFunc("isDictionary", &simpleFunctor{f: isDictionaryFunc}, 1, 1)
ctx.RegisterFunc("isDict", &simpleFunctor{f: isDictionaryFunc}, 1, 1)

7
utils.go
View File

@ -44,6 +44,13 @@ func IsFract(v any) (ok bool) {
return ok
}
func IsRational(v any) (ok bool) {
if _, ok = v.(*fraction); !ok {
_, ok = v.(int64)
}
return ok
}
func IsNumber(v any) (ok bool) {
return IsFloat(v) || IsInteger(v)
}