accounts, build, mobile: remove Android and iOS support (ethereum#26599)

Author: JukLee0ira

.github/CODEOWNERS

@@ -7,5 +7,4 @@ core/              @karalabe @holiman
 eth/               @karalabe
 les/               @zsfelfoldi
 light/             @zsfelfoldi
-mobile/            @karalabe
 p2p/               @fjl @zsfelfoldi

accounts/abi/bind/bind.go

@@ -37,8 +37,6 @@ type Lang int
 
 const (
 	LangGo Lang = iota
-	LangJava
-	LangObjC
 )
 
 // Bind generates a Go wrapper around a contract ABI. This wrapper isn't meant
@@ -160,15 +158,15 @@ func Bind(types []string, abis []string, bytecodes []string, pkg string, lang La
 // bindType is a set of type binders that convert Solidity types to some supported
 // programming language types.
 var bindType = map[Lang]func(kind abi.Type) string{
-	LangGo:   bindTypeGo,
-	LangJava: bindTypeJava,
+	LangGo: bindTypeGo,
 }
 
 // Helper function for the binding generators.
 // It reads the unmatched characters after the inner type-match,
-//  (since the inner type is a prefix of the total type declaration),
-//  looks for valid arrays (possibly a dynamic one) wrapping the inner type,
-//  and returns the sizes of these arrays.
+//
+//	(since the inner type is a prefix of the total type declaration),
+//	looks for valid arrays (possibly a dynamic one) wrapping the inner type,
+//	and returns the sizes of these arrays.
 //
 // Returned array sizes are in the same order as solidity signatures; inner array size first.
 // Array sizes may also be "", indicating a dynamic array.
@@ -244,15 +242,6 @@ func arrayBindingJava(inner string, arraySizes []string) string {
 	return inner + strings.Repeat("[]", len(arraySizes))
 }
 
-// bindTypeJava converts a Solidity type to a Java one. Since there is no clear mapping
-// from all Solidity types to Java ones (e.g. uint17), those that cannot be exactly
-// mapped will use an upscaled type (e.g. BigDecimal).
-func bindTypeJava(kind abi.Type) string {
-	stringKind := kind.String()
-	innerLen, innerMapping := bindUnnestedTypeJava(stringKind)
-	return arrayBindingJava(wrapArray(stringKind, innerLen, innerMapping))
-}
-
 // The inner function of bindTypeJava, this finds the inner type of stringKind.
 // (Or just the type itself if it is not an array or slice)
 // The length of the matched part is returned, with the the translated type.
@@ -311,8 +300,7 @@ func bindUnnestedTypeJava(stringKind string) (int, string) {
 // bindTopicType is a set of type binders that convert Solidity types to some
 // supported programming language topic types.
 var bindTopicType = map[Lang]func(kind abi.Type) string{
-	LangGo:   bindTopicTypeGo,
-	LangJava: bindTopicTypeJava,
+	LangGo: bindTopicTypeGo,
 }
 
 // bindTypeGo converts a Solidity topic type to a Go one. It is almost the same
@@ -325,64 +313,16 @@ func bindTopicTypeGo(kind abi.Type) string {
 	return bound
 }
 
-// bindTypeGo converts a Solidity topic type to a Java one. It is almost the same
-// funcionality as for simple types, but dynamic types get converted to hashes.
-func bindTopicTypeJava(kind abi.Type) string {
-	bound := bindTypeJava(kind)
-	if bound == "String" || bound == "Bytes" {
-		bound = "Hash"
-	}
-	return bound
-}
-
 // namedType is a set of functions that transform language specific types to
 // named versions that my be used inside method names.
 var namedType = map[Lang]func(string, abi.Type) string{
-	LangGo:   func(string, abi.Type) string { panic("this shouldn't be needed") },
-	LangJava: namedTypeJava,
-}
-
-// namedTypeJava converts some primitive data types to named variants that can
-// be used as parts of method names.
-func namedTypeJava(javaKind string, solKind abi.Type) string {
-	switch javaKind {
-	case "byte[]":
-		return "Binary"
-	case "byte[][]":
-		return "Binaries"
-	case "string":
-		return "String"
-	case "string[]":
-		return "Strings"
-	case "boolean":
-		return "Bool"
-	case "boolean[]":
-		return "Bools"
-	case "BigInt[]":
-		return "BigInts"
-	default:
-		parts := regexp.MustCompile(`(u)?int([0-9]*)(\[[0-9]*\])?`).FindStringSubmatch(solKind.String())
-		if len(parts) != 4 {
-			return javaKind
-		}
-		switch parts[2] {
-		case "8", "16", "32", "64":
-			if parts[3] == "" {
-				return capitalise(fmt.Sprintf("%sint%s", parts[1], parts[2]))
-			}
-			return capitalise(fmt.Sprintf("%sint%ss", parts[1], parts[2]))
-
-		default:
-			return javaKind
-		}
-	}
+	LangGo: func(string, abi.Type) string { panic("this shouldn't be needed") },
 }
 
 // methodNormalizer is a name transformer that modifies Solidity method names to
 // conform to target language naming concentions.
 var methodNormalizer = map[Lang]func(string) string{
-	LangGo:   capitalise,
-	LangJava: decapitalise,
+	LangGo: capitalise,
 }
 
 // capitalise makes a camel-case string which starts with an upper case character.

accounts/abi/bind/template.go

@@ -52,8 +52,7 @@ type tmplEvent struct {
 // tmplSource is language to template mapping containing all the supported
 // programming languages the package can generate to.
 var tmplSource = map[Lang]string{
-	LangGo:   tmplSourceGo,
-	LangJava: tmplSourceJava,
+	LangGo: tmplSourceGo,
 }
 
 // tmplSourceGo is the Go source template use to generate the contract binding
@@ -418,105 +417,3 @@ package {{.Package}}
  	{{end}}
 {{end}}
 `
-
-// tmplSourceJava is the Java source template use to generate the contract binding
-// based on.
-const tmplSourceJava = `
-// This file is an automatically generated Java binding. Do not modify as any
-// change will likely be lost upon the next re-generation!
-
-package {{.Package}};
-
-import org.ethereum.geth.*;
-import org.ethereum.geth.internal.*;
-
-{{range $contract := .Contracts}}
-	public class {{.Type}} {
-		// ABI is the input ABI used to generate the binding from.
-		public final static String ABI = "{{.InputABI}}";
-
-		{{if .InputBin}}
-			// BYTECODE is the compiled bytecode used for deploying new contracts.
-			public final static byte[] BYTECODE = "{{.InputBin}}".getBytes();
-
-			// deploy deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
-			public static {{.Type}} deploy(TransactOpts auth, EthereumClient client{{range .Constructor.Inputs}}, {{bindtype .Type}} {{.Name}}{{end}}) throws Exception {
-				Interfaces args = Geth.newInterfaces({{(len .Constructor.Inputs)}});
-				{{range $index, $element := .Constructor.Inputs}}
-				  args.set({{$index}}, Geth.newInterface()); args.get({{$index}}).set{{namedtype (bindtype .Type) .Type}}({{.Name}});
-				{{end}}
-				return new {{.Type}}(Geth.deployContract(auth, ABI, BYTECODE, client, args));
-			}
-
-			// Internal constructor used by contract deployment.
-			private {{.Type}}(BoundContract deployment) {
-				this.Address  = deployment.getAddress();
-				this.Deployer = deployment.getDeployer();
-				this.Contract = deployment;
-			}
-		{{end}}
-
-		// Ethereum address where this contract is located at.
-		public final Address Address;
-
-		// Ethereum transaction in which this contract was deployed (if known!).
-		public final Transaction Deployer;
-
-		// Contract instance bound to a blockchain address.
-		private final BoundContract Contract;
-
-		// Creates a new instance of {{.Type}}, bound to a specific deployed contract.
-		public {{.Type}}(Address address, EthereumClient client) throws Exception {
-			this(Geth.bindContract(address, ABI, client));
-		}
-
-		{{range .Calls}}
-			{{if gt (len .Normalized.Outputs) 1}}
-			// {{capitalise .Normalized.Name}}Results is the output of a call to {{.Normalized.Name}}.
-			public class {{capitalise .Normalized.Name}}Results {
-				{{range $index, $item := .Normalized.Outputs}}public {{bindtype .Type}} {{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}};
-				{{end}}
-			}
-			{{end}}
-
-			// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.Id}}.
-			//
-			// Solidity: {{.Original.String}}
-			public {{if gt (len .Normalized.Outputs) 1}}{{capitalise .Normalized.Name}}Results{{else}}{{range .Normalized.Outputs}}{{bindtype .Type}}{{end}}{{end}} {{.Normalized.Name}}(CallOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type}} {{.Name}}{{end}}) throws Exception {
-				Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
-				{{range $index, $item := .Normalized.Inputs}}args.set({{$index}}, Geth.newInterface()); args.get({{$index}}).set{{namedtype (bindtype .Type) .Type}}({{.Name}});
-				{{end}}
-
-				Interfaces results = Geth.newInterfaces({{(len .Normalized.Outputs)}});
-				{{range $index, $item := .Normalized.Outputs}}Interface result{{$index}} = Geth.newInterface(); result{{$index}}.setDefault{{namedtype (bindtype .Type) .Type}}(); results.set({{$index}}, result{{$index}});
-				{{end}}
-
-				if (opts == null) {
-					opts = Geth.newCallOpts();
-				}
-				this.Contract.call(opts, results, "{{.Original.Name}}", args);
-				{{if gt (len .Normalized.Outputs) 1}}
-					{{capitalise .Normalized.Name}}Results result = new {{capitalise .Normalized.Name}}Results();
-					{{range $index, $item := .Normalized.Outputs}}result.{{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}} = results.get({{$index}}).get{{namedtype (bindtype .Type) .Type}}();
-					{{end}}
-					return result;
-				{{else}}{{range .Normalized.Outputs}}return results.get(0).get{{namedtype (bindtype .Type) .Type}}();{{end}}
-				{{end}}
-			}
-		{{end}}
-
-		{{range .Transacts}}
-			// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.Id}}.
-			//
-			// Solidity: {{.Original.String}}
-			public Transaction {{.Normalized.Name}}(TransactOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type}} {{.Name}}{{end}}) throws Exception {
-				Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
-				{{range $index, $item := .Normalized.Inputs}}args.set({{$index}}, Geth.newInterface()); args.get({{$index}}).set{{namedtype (bindtype .Type) .Type}}({{.Name}});
-				{{end}}
-
-				return this.Contract.transact(opts, "{{.Original.Name}}"	, args);
-			}
-		{{end}}
-	}
-{{end}}
-`

cmd/abigen/main.go

@@ -38,7 +38,7 @@ var (
 
 	pkgFlag  = flag.String("pkg", "", "Package name to generate the binding into")
 	outFlag  = flag.String("out", "", "Output file for the generated binding (default = stdout)")
-	langFlag = flag.String("lang", "go", "Destination language for the bindings (go, java, objc)")
+	langFlag = flag.String("lang", "go", "Destination language for the bindings (go)")
 )
 
 func main() {
@@ -60,10 +60,6 @@ func main() {
 	switch *langFlag {
 	case "go":
 		lang = bind.LangGo
-	case "java":
-		lang = bind.LangJava
-	case "objc":
-		lang = bind.LangObjC
 	default:
 		fmt.Printf("Unsupported destination language \"%s\" (--lang)\n", *langFlag)
 		os.Exit(-1)