transaction: auto-generate stringer interface for AttrUsage

pkg/core/transaction/attr_usage.go

@@ -1,50 +1,6 @@
 package transaction
 
-var (
+//go:generate stringer -type=AttrUsage
-	attrLookup = map[AttrUsage]string{
-		ContractHash:   "ContractHash",
-		ECDH02:         "ECDH02",
-		ECDH03:         "ECDH03",
-		Script:         "Script",
-		Vote:           "Vote",
-		CertURL:        "CertURL",
-		DescriptionURL: "DescriptionURL",
-		Description:    "Description",
-
-		Hash1:  "Hash1",
-		Hash2:  "Hash2",
-		Hash3:  "Hash3",
-		Hash4:  "Hash4",
-		Hash5:  "Hash5",
-		Hash6:  "Hash6",
-		Hash7:  "Hash7",
-		Hash8:  "Hash8",
-		Hash9:  "Hash9",
-		Hash10: "Hash10",
-		Hash11: "Hash11",
-		Hash12: "Hash12",
-		Hash13: "Hash13",
-		Hash14: "Hash14",
-		Hash15: "Hash15",
-
-		Remark:   "Remark",
-		Remark1:  "Remark1",
-		Remark2:  "Remark2",
-		Remark3:  "Remark3",
-		Remark4:  "Remark4",
-		Remark5:  "Remark5",
-		Remark6:  "Remark6",
-		Remark7:  "Remark7",
-		Remark8:  "Remark8",
-		Remark9:  "Remark9",
-		Remark10: "Remark10",
-		Remark11: "Remark11",
-		Remark12: "Remark12",
-		Remark13: "Remark13",
-		Remark14: "Remark14",
-		Remark15: "Remark15",
-	}
-)
 
 // AttrUsage represents the purpose of the attribute.
 type AttrUsage uint8
@@ -93,11 +49,3 @@ const (
 	Remark14 AttrUsage = 0xfe
 	Remark15 AttrUsage = 0xff
 )
-
-// String implements the stringer interface.
-func (attr AttrUsage) String() string {
-	if v, ok := attrLookup[attr]; ok {
-		return v
-	}
-	return "Unkown Attribute"
-}

pkg/core/transaction/attrusage_string.go

@@ -0,0 +1,95 @@
+// Code generated by "stringer -type=AttrUsage"; DO NOT EDIT.
+
+package transaction
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[ContractHash-0]
+	_ = x[ECDH02-2]
+	_ = x[ECDH03-3]
+	_ = x[Script-32]
+	_ = x[Vote-48]
+	_ = x[CertURL-128]
+	_ = x[DescriptionURL-129]
+	_ = x[Description-144]
+	_ = x[Hash1-161]
+	_ = x[Hash2-162]
+	_ = x[Hash3-163]
+	_ = x[Hash4-164]
+	_ = x[Hash5-165]
+	_ = x[Hash6-166]
+	_ = x[Hash7-167]
+	_ = x[Hash8-168]
+	_ = x[Hash9-169]
+	_ = x[Hash10-170]
+	_ = x[Hash11-171]
+	_ = x[Hash12-172]
+	_ = x[Hash13-173]
+	_ = x[Hash14-174]
+	_ = x[Hash15-175]
+	_ = x[Remark-240]
+	_ = x[Remark1-241]
+	_ = x[Remark2-242]
+	_ = x[Remark3-243]
+	_ = x[Remark4-244]
+	_ = x[Remark5-245]
+	_ = x[Remark6-246]
+	_ = x[Remark7-247]
+	_ = x[Remark8-248]
+	_ = x[Remark9-249]
+	_ = x[Remark10-250]
+	_ = x[Remark11-251]
+	_ = x[Remark12-252]
+	_ = x[Remark13-253]
+	_ = x[Remark14-254]
+	_ = x[Remark15-255]
+}
+
+const (
+	_AttrUsage_name_0 = "ContractHash"
+	_AttrUsage_name_1 = "ECDH02ECDH03"
+	_AttrUsage_name_2 = "Script"
+	_AttrUsage_name_3 = "Vote"
+	_AttrUsage_name_4 = "CertURLDescriptionURL"
+	_AttrUsage_name_5 = "Description"
+	_AttrUsage_name_6 = "Hash1Hash2Hash3Hash4Hash5Hash6Hash7Hash8Hash9Hash10Hash11Hash12Hash13Hash14Hash15"
+	_AttrUsage_name_7 = "RemarkRemark1Remark2Remark3Remark4Remark5Remark6Remark7Remark8Remark9Remark10Remark11Remark12Remark13Remark14Remark15"
+)
+
+var (
+	_AttrUsage_index_1 = [...]uint8{0, 6, 12}
+	_AttrUsage_index_4 = [...]uint8{0, 7, 21}
+	_AttrUsage_index_6 = [...]uint8{0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 51, 57, 63, 69, 75, 81}
+	_AttrUsage_index_7 = [...]uint8{0, 6, 13, 20, 27, 34, 41, 48, 55, 62, 69, 77, 85, 93, 101, 109, 117}
+)
+
+func (i AttrUsage) String() string {
+	switch {
+	case i == 0:
+		return _AttrUsage_name_0
+	case 2 <= i && i <= 3:
+		i -= 2
+		return _AttrUsage_name_1[_AttrUsage_index_1[i]:_AttrUsage_index_1[i+1]]
+	case i == 32:
+		return _AttrUsage_name_2
+	case i == 48:
+		return _AttrUsage_name_3
+	case 128 <= i && i <= 129:
+		i -= 128
+		return _AttrUsage_name_4[_AttrUsage_index_4[i]:_AttrUsage_index_4[i+1]]
+	case i == 144:
+		return _AttrUsage_name_5
+	case 161 <= i && i <= 175:
+		i -= 161
+		return _AttrUsage_name_6[_AttrUsage_index_6[i]:_AttrUsage_index_6[i+1]]
+	case 240 <= i && i <= 255:
+		i -= 240
+		return _AttrUsage_name_7[_AttrUsage_index_7[i]:_AttrUsage_index_7[i+1]]
+	default:
+		return "AttrUsage(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+}