46 lines
783 B
Go
46 lines
783 B
Go
package builtin
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import (
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"log"
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"strconv"
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"git.xdrm.io/go/aicra/typecheck"
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)
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// Float64 checks if a value is a float64
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type Float64 struct{}
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// NewFloat64 returns a bare number type checker
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func NewFloat64() *Float64 {
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return &Float64{}
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}
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// Checker returns the checker function
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func (Float64) Checker(typeName string) typecheck.Checker {
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// nothing if type not handled
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if typeName != "float64" && typeName != "float" {
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return nil
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}
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return func(value interface{}) bool {
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strVal, isString := value.(string)
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_, isFloat64 := value.(float64)
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log.Printf("1")
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// raw float
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if isFloat64 {
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return true
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}
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// string float
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if !isString {
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return false
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}
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_, err := strconv.ParseFloat(strVal, 64)
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if err != nil {
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return false
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}
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return true
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}
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}
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