24 lines
656 B
Go
24 lines
656 B
Go
// Copyright 2016-2018, Pulumi Corporation. All rights reserved.
|
|
|
|
package contract
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
const requireMsg = "A precondition has failed for %v"
|
|
|
|
// Require checks a precondition condition pertaining to a function parameter, and Fails if it is false.
|
|
func Require(cond bool, param string) {
|
|
if !cond {
|
|
failfast(fmt.Sprintf(requireMsg, param))
|
|
}
|
|
}
|
|
|
|
// Requiref checks a precondition condition pertaining to a function parameter, and Failfs if it is false.
|
|
func Requiref(cond bool, param string, msg string, args ...interface{}) {
|
|
if !cond {
|
|
failfast(fmt.Sprintf("%v: %v", fmt.Sprintf(requireMsg, param), fmt.Sprintf(msg, args...)))
|
|
}
|
|
}
|