RandStringBytesMaskImprSrcSB() — gin Function Reference

Architecture documentation for the RandStringBytesMaskImprSrcSB() function in bytesconv_test.go from the gin codebase.

Function go InternalUtilities MemoryOptimization called by 1

Entity Profile

InternalUtilities→ MemoryOptimization→ RandStringBytesMaskImprSrcSB() — gin Function Reference

Dependency Diagram

graph TD
  906ff1c0_0648_d845_043e_dd1afe635fbf["RandStringBytesMaskImprSrcSB()"]
  a351a42e_df95_8d3f_6808_84177715971a["TestStringToBytes()"]
  a351a42e_df95_8d3f_6808_84177715971a -->|calls| 906ff1c0_0648_d845_043e_dd1afe635fbf
  style 906ff1c0_0648_d845_043e_dd1afe635fbf fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

internal/bytesconv/bytesconv_test.go lines 62–79

func RandStringBytesMaskImprSrcSB(n int) string {
	sb := strings.Builder{}
	sb.Grow(n)
	// A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
	for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
		if remain == 0 {
			cache, remain = src.Int63(), letterIdxMax
		}
		if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
			sb.WriteByte(letterBytes[idx])
			i--
		}
		cache >>= letterIdxBits
		remain--
	}

	return sb.String()
}