75 lines
2.3 KiB
Go
75 lines
2.3 KiB
Go
package main
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import (
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"fmt"
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"go/ast"
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"os"
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"strconv"
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"strings"
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)
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type TypesInfo struct {
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Types
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Direction string
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State string
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}
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type PacketInfo struct {
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TName, Name, Direction, State, PacketId, ProtocolVersion, MinecraftVersion string
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PacketDef any
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}
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func GeneratePacketInfoFile(versions []string, packetInfos []PacketInfo) (err error) {
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f := NewFile("proto_generated")
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imports := []string{"git.anygate.cloud/anygatecloud/strom/mc/proto_base"}
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for _, v := range versions {
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vUnderscore := strings.ReplaceAll(v, ".", "_")
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imports = append(imports, "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v"+vUnderscore)
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}
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AppendDecl(f, Import(imports...))
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var packetInfoExprs []ast.Expr
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for _, p := range packetInfos {
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vUnderscore := "v" + strings.ReplaceAll(p.MinecraftVersion, ".", "_")
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typeName := p.TName
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var typeExpr ast.Expr
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if p.PacketDef == "void" {
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typeExpr = NewStruct()
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} else {
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typeExpr = Selector(vUnderscore, typeName)
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}
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packetId, err := strconv.ParseInt(p.PacketId, 0, 32)
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if err != nil {
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panic(fmt.Errorf("failed to parse packet ID %q: %w", p.PacketId, err))
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}
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protocolVersion, err := strconv.Atoi(p.ProtocolVersion)
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if err != nil {
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panic(fmt.Errorf("failed to parse protocol version %q: %w", p.ProtocolVersion, err))
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}
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packetInfoExprs = append(packetInfoExprs, CompLit(nil, []ast.Expr{
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KeyValueExpr(Ident("Type"), AddrOf(CompLit(typeExpr, nil))),
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KeyValueExpr(Ident("Name"), StrLit(p.Name)),
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KeyValueExpr(Ident("Direction"), Selector("proto_base", p.Direction)),
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KeyValueExpr(Ident("State"), Selector("proto_base", p.State)),
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KeyValueExpr(Ident("PacketId"), NumLit(int(packetId))),
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KeyValueExpr(Ident("ProtocolVersion"), NumLit(protocolVersion)),
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}))
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}
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var supportedVersionsExprs []ast.Expr
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for _, v := range versions {
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supportedVersionsExprs = append(supportedVersionsExprs, StrLit(v))
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}
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AppendDecl(f, VarValues("SupportedVersions", CompLit(Slice(Ident("string")), supportedVersionsExprs)))
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AppendDecl(f, VarValues("Packets", CompLit(Slice(Selector("proto_base", "PacketInfo")), packetInfoExprs)))
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out, err := os.Create("mc/proto_generated/packet_info.go")
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if err != nil {
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return
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}
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defer out.Close()
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return PrintToFile(f, out)
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}
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