go-pkg/expr
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func-base.go: added functions to check data-type of a value

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This commit is contained in:
Celestino Amoroso 2024-05-10 04:43:14 +02:00
parent 1f7b9131fc
commit 389d48b646
1 changed files with 47 additions and 2 deletions

49
func-base.go
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@ -18,6 +18,42 @@ func isNilFunc(ctx ExprContext, name string, args []any) (result any, err error)
return
}
func isIntFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsInteger(args[0])
return
}
func isFloatFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsFloat(args[0])
return
}
func isBoolFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsBool(args[0])
return
}
func isStringFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsString(args[0])
return
}
func isFractionFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsFract(args[0])
return
}
func isListFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsList(args[0])
return
}
func isDictionaryFunc(ctx ExprContext, name string, args []any) (result any, err error) {
result = IsDict(args[0])
return
}
func intFunc(ctx ExprContext, name string, args []any) (result any, err error) {
if len(args) == 1 {
switch v := args[0].(type) {
@ -50,8 +86,17 @@ func iteratorFunc(ctx ExprContext, name string, args []any) (result any, err err
}
func ImportBuiltinsFuncs(ctx ExprContext) {
ctx.RegisterFunc("isNil", &simpleFunctor{f: isNilFunc}, 1, -1)
ctx.RegisterFunc("int", &simpleFunctor{f: intFunc}, 1, -1)
ctx.RegisterFunc("isNil", &simpleFunctor{f: isNilFunc}, 1, 1)
ctx.RegisterFunc("isInt", &simpleFunctor{f: isIntFunc}, 1, 1)
ctx.RegisterFunc("isFloat", &simpleFunctor{f: isFloatFunc}, 1, 1)
ctx.RegisterFunc("isBool", &simpleFunctor{f: isBoolFunc}, 1, 1)
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("isList", &simpleFunctor{f: isListFunc}, 1, 1)
ctx.RegisterFunc("isDictionary", &simpleFunctor{f: isDictionaryFunc}, 1, 1)
ctx.RegisterFunc("isDict", &simpleFunctor{f: isDictionaryFunc}, 1, 1)
ctx.RegisterFunc("int", &simpleFunctor{f: intFunc}, 1, 1)
}
func init() {