adman
6369ed08e2
i returned which is how i normally code but returning doesnt set stuff which made things break here
[]byte("80\x00\x01\x05\x01\x010\x01\x00")
553 lines
14 KiB
Go
553 lines
14 KiB
Go
package main
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import (
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"go/ast"
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"go/token"
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"slices"
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"strconv"
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"github.com/go-viper/mapstructure/v2"
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)
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func DefaultDecoder(_ *Generator, varToSet ast.Expr, _ any, _ string) (s []ast.Stmt, err error) {
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s = Stmts(
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Assign(
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Exprs(varToSet, Ident("err")),
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Exprs(Call(SelectorExprAndStr(varToSet, "Decode"), Ident("r"))),
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),
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IfErrNil(),
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)
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return
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}
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func UUIDDecoder(_ *Generator, varToSet ast.Expr, _ any, _ string) (s []ast.Stmt, err error) {
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//_, err = io.ReadFull(r, U[:])
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s = Stmts(
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Assign(Exprs(Ident("_"), Ident("err")), Exprs(Call(Selector("io", "ReadFull"), Ident("r"), MultiIndex(varToSet, nil, nil, nil)))),
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IfErrNil(),
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)
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return
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}
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func ContainerDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data []struct {
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Name string
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Type any
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Anon bool
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}
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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g.ContainerStack = append(g.ContainerStack, ContainerStackEntry{
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Data: data,
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VarToSet: varToSet,
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})
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defer func() { g.ContainerStack = g.ContainerStack[:len(g.ContainerStack)-1] }()
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for _, field := range data {
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var statements []ast.Stmt
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cName := CamelCase(field.Name)
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if field.Anon {
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cName = "Anon"
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}
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statements, err = g.VisitDecoder(SelectorExprAndStr(varToSet, cName), field.Type, name+cName)
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if err != nil {
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return
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}
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s = append(s, statements...)
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}
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return
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}
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func SimpleTypeDecoder(_ *Generator, varToSet ast.Expr, _ any, _ string) (s []ast.Stmt, err error) {
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s = Stmts(
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Assign(
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Exprs(Ident("err")),
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Exprs(Call(Selector("binary", "Read"), Ident("r"), Selector("binary", "BigEndian"), AddrOf(varToSet))),
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),
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IfErrNil(),
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)
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return
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}
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func StringDecoder(_ *Generator, varToSet ast.Expr, _ any, _ string) (s []ast.Stmt, err error) {
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s = Stmts(
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Assign(Exprs(varToSet, Ident("err")), Exprs(Call(Selector("proto_base", "DecodeString"), Ident("r")))),
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IfErrNil(),
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)
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return
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}
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func OptionDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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pVarName := name + "Present"
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tVarName := name + "PresentValue"
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boolStmts, err := g.VisitDecoder(Ident(pVarName), "bool", name)
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if err != nil {
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return
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}
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t, err := g.VisitType(dataRaw)
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if err != nil {
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return
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}
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tStmts1 := Stmts(VarStmt(tVarName, t))
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tStmts2, err := g.VisitDecoder(Ident(tVarName), dataRaw, name)
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if err != nil {
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return
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}
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// This looks so shit
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tStmts := append(tStmts1, tStmts2...)
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tStmts = append(tStmts, Assign121(varToSet, AddrOf(Ident(tVarName))))
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s = append(s, VarStmt(pVarName, Ident("bool")))
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s = append(s, boolStmts...)
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s = append(s, If(Ident(pVarName), NewBlock(tStmts)))
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return
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}
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func ArrayDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data struct {
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CountType any
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Count string
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Type any
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}
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lName := "l" + CamelCase(name)
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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var s2 []ast.Stmt
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countType, err := g.VisitNameAndData("varint", nil)
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if data.CountType != nil {
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countType, err = g.VisitType(data.CountType)
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if err != nil {
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return
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}
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s2, err = g.VisitDecoder(Ident(lName), data.CountType, name)
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if err != nil {
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return
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}
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} else {
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var n int
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n, err = strconv.Atoi(data.Count)
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var e ast.Expr
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if err == nil {
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e = NumLit(n)
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} else {
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e, err = g.ParseCompareTo(data.Count)
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}
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s2 = append(s2, Assign121(Ident(lName), e))
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}
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normalType, err := g.VisitType(data.Type)
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if err != nil {
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return
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}
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arrayType, err := g.VisitNameAndData("array", dataRaw)
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if err != nil {
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return
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}
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tName := name + "Element"
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rangeStatements := Stmts(VarStmt(tName, normalType))
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s5, err := g.VisitDecoder(Ident(tName), data.Type, tName)
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rangeStatements = append(rangeStatements, s5...)
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rangeStatements = append(rangeStatements, Assign121(varToSet, Call(Ident("append"), varToSet, Ident(tName))))
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if err != nil {
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return
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}
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s1 := VarStmt(lName, countType)
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s3 := Assign121(varToSet, CompLit(arrayType, Exprs()))
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s4 := ForRange(nil, Ident(lName), NewBlock(rangeStatements))
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s = append(s, s1)
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s = append(s, s2...)
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s = append(s, s3)
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s = append(s, s4)
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return
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}
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func TypeForwardDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data struct {
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Type string
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}
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if err = mapstructure.Decode(dataRaw, &data); err != nil {
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return
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}
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return g.VisitDecoder(varToSet, data.Type, name)
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}
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var DontStringify = []string{"true", "false"}
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// CaseExprType This exists to fix this
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// "switch",
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//
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// {
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// "compareTo": "itemCount",
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// "fields": {
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// "0": "void",
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// "false": "void"
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// },
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// "default": [
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//
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// Protodef is best!!!
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type CaseExprType int
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const (
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CaseExprTypeUnset CaseExprType = iota
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CaseExprTypeNumber
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CaseExprTypeSpecial
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CaseExprTypeString
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)
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func MultiTypeFix(s string, t *CaseExprType) (e ast.Expr) {
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n, err := strconv.Atoi(s)
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ct := CaseExprTypeUnset
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if err == nil {
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err = nil
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e = NumLit(n)
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ct = CaseExprTypeNumber
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} else if slices.Contains(DontStringify, s) {
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e = Ident(s)
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ct = CaseExprTypeSpecial
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} else {
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e = StrLit(s)
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ct = CaseExprTypeString
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}
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if *t == CaseExprTypeUnset {
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*t = ct
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return
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}
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if *t != ct {
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e = nil
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}
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return
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}
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func SwitchDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data struct {
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CompareTo string
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Fields map[string]any
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Default any
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}
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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compareToExpr, err := g.ParseCompareTo(data.CompareTo)
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if err != nil {
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return
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}
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cet := CaseExprTypeUnset
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for _, fName := range OrderedKeys(data.Fields) {
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fType := data.Fields[fName]
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e := MultiTypeFix(fName, &cet)
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if e == nil {
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continue
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}
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var tType ast.Expr
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tType, err = g.VisitType(fType)
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if err != nil {
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return
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}
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tName := name + CamelCase(fName) + "Tmp"
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s1 := VarStmt(tName, tType)
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s3 := Assign121(varToSet, Ident(tName))
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var caseDecodeValueStmts []ast.Stmt
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caseDecodeValueStmts, err = g.VisitDecoder(Ident(tName), fType, name)
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if err != nil {
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return
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}
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var caseStmts []ast.Stmt
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caseStmts = append(caseStmts, s1)
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caseStmts = append(caseStmts, caseDecodeValueStmts...)
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caseStmts = append(caseStmts, s3)
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s = append(s, Case(Exprs(e), caseStmts))
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}
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if data.Default != nil {
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var tType ast.Expr
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tType, err = g.VisitType(data.Default)
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tName := name + "Tmp"
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s1 := VarStmt(tName, tType)
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s3 := Assign121(varToSet, Ident(tName))
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var caseDecodeValueStmts []ast.Stmt
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caseDecodeValueStmts, err = g.VisitDecoder(Ident(tName), data.Default, name)
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if err != nil {
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return
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}
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var caseStmts []ast.Stmt
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caseStmts = append(caseStmts, s1)
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caseStmts = append(caseStmts, caseDecodeValueStmts...)
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caseStmts = append(caseStmts, s3)
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s = append(s, Case(nil, caseStmts))
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}
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if len(s) != 0 {
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s = Stmts(SwitchStmt(compareToExpr, NewBlock(s)))
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}
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return
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}
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var ToDoStmts = Stmts(Assign121(Ident("err"), Selector("proto_base", "ToDoError")))
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func ToDoDecoder(_ *Generator, _ ast.Expr, _ any, _ string) (s []ast.Stmt, err error) {
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err = ToDoError
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return
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}
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func MapperDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data struct {
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Mappings map[string]string
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Type any
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}
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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kName := CamelCase(name) + "Key"
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kType, err := g.VisitType(data.Type)
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if err != nil {
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return
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}
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s1 := VarStmt(kName, kType)
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s2, err := g.VisitDecoder(Ident(kName), data.Type, name)
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if err != nil {
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return
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}
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mName := name + "Map"
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expressions := Exprs()
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for _, k := range OrderedKeys(data.Mappings) {
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v := data.Mappings[k]
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expressions = append(expressions, KeyValueExpr(NumLitStr(k), StrLit(v)))
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}
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g.Decl(mName, token.VAR, CompLit(MapType(kType, Ident("string")), expressions))
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s3 := Assign(Exprs(varToSet, Ident("err")), Exprs(Call(Selector("proto_base", "ErroringIndex"), Ident(mName), Ident(kName))))
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s = append(s, s1)
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s = append(s, s2...)
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s = append(s, s3)
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s = append(s, IfErrNil())
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return
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}
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func BufferDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data struct {
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Count int
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CountType any
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}
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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// rawString, err := io.ReadAll(io.LimitReader(r, int64(l)))
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if data.CountType != nil {
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lName := "l" + CamelCase(name)
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var countType ast.Expr
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countType, err = g.VisitType(data.CountType)
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if err != nil {
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return
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}
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var s2 []ast.Stmt
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s2, err = g.VisitDecoder(Ident(lName), data.CountType, name)
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if err != nil {
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return
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}
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s1 := VarStmt(lName, countType)
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s3 := Assign(Exprs(varToSet, Ident("err")), Exprs(Call(Selector("io", "ReadAll"), Call(Selector("io", "LimitReader"), Ident("r"), Call(Ident("int64"), Ident(lName))))))
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s = append(s, s1)
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s = append(s, s2...)
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s = append(s, s3)
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} else {
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s = Stmts(Assign(Exprs(Ident("_"), Ident("err")), Exprs(Call(Selector("r", "Read"), MultiIndex(varToSet, nil, nil, nil)))))
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}
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s = append(s, IfErrNil())
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return
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}
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func BitFieldDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data []struct {
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Name string
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Singed bool
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Size int
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}
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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totalSize := 0
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for _, field := range data {
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totalSize += field.Size
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}
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p, err := TotalBitfieldSizeToProtodefName(totalSize)
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if err != nil {
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return
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}
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return g.VisitDecoder(varToSet, p, name)
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}
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func RegistryEntryHolderSetDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data struct {
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Base struct {
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Name string
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Type any
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}
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Otherwise struct {
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Name string
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Type any
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}
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}
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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var countType ast.Expr
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countType, err = g.VisitType("varint")
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if err != nil {
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return
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}
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baseType, err := g.VisitType(data.Base.Type)
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if err != nil {
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return
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}
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otherwiseArrayType, err := g.VisitNameAndData("array", map[string]any{"type": data.Otherwise.Type})
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if err != nil {
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return
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}
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otherwiseType, err := g.VisitType(data.Otherwise.Type)
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if err != nil {
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return
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}
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lName := "l" + CamelCase(name)
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s1 := VarStmt(lName, countType)
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s2, err := g.VisitDecoder(Ident(lName), "varint", name)
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if err != nil {
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return
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}
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s3 := Assign121(Ident(lName), Sub(Ident(lName), NumLit(1)))
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resultName := name + "Result"
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b1s1 := VarStmt(resultName, baseType)
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b1s2, err := g.VisitDecoder(Ident(resultName), data.Base.Type, resultName)
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b1s3 := Assign121(varToSet, Ident(resultName))
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b1s4 := Return()
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var b1 []ast.Stmt
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b1 = append(b1, b1s1)
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b1 = append(b1, b1s2...)
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b1 = append(b1, b1s3)
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b1 = append(b1, b1s4)
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tName := name + "Element"
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rangeStatements := Stmts(VarStmt(tName, otherwiseType))
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rangeStatementsDecode, err := g.VisitDecoder(Ident(tName), data.Otherwise.Type, tName)
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rangeStatements = append(rangeStatements, rangeStatementsDecode...)
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rangeStatements = append(rangeStatements, Assign121(Ident(resultName), Call(Ident("append"), Ident(resultName), Ident(tName))))
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s5 := If(Equals(Ident(lName), NumLit(-1)), NewBlock(b1))
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s6 := VarStmt(resultName, otherwiseArrayType)
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s7 := ForRange(nil, Ident(lName), NewBlock(rangeStatements))
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s = append(s, s1)
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s = append(s, s2...)
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s = append(s, s3)
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s = append(s, s5)
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s = append(s, s6)
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s = append(s, s7)
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return
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}
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func RegistryEntryHolderDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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var data EntryHolderSet
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err = mapstructure.Decode(dataRaw, &data)
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if err != nil {
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return
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}
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idName := name + "Id"
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varIntType, err := g.VisitNameAndData("varint", nil)
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if err != nil {
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return
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}
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IdVar := VarStmt(idName, varIntType)
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idDecodeStatements, err := g.VisitDecoder(Ident(idName), "varint", name)
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if err != nil {
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return
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}
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otherwiseType, err := g.VisitType(data.Otherwise.Type)
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if err != nil {
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return
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}
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resName := name + "Result"
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resNameIdent := Ident(resName)
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var otherwisePath []ast.Stmt
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otherwisePath = append(otherwisePath, VarStmt(resName, otherwiseType))
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otherwiseDecodeStatements, err := g.VisitDecoder(resNameIdent, data.Otherwise.Type, name+"Otherwise")
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if err != nil {
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return
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}
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otherwisePath = append(otherwisePath, otherwiseDecodeStatements...)
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otherwisePath = append(otherwisePath, Assign121(varToSet, resNameIdent))
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idPath := IfElse(NotEquals(Ident(idName), NumLit(0)), NewBlockEllipsis(Assign121(varToSet, Ident(idName))), NewBlock(otherwisePath))
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s = append(s, IdVar)
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s = append(s, idDecodeStatements...)
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s = append(s, idPath)
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return
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}
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func VarIntDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
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s = Stmts(Assign(Exprs(varToSet, Ident("err")), Exprs(Call(Selector("proto_base", "DecodeVarInt"), Ident("r")))), IfErrNil())
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return
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}
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func VarLongDecoder(g *Generator, varToSet ast.Expr, dataRaw any, name string) (s []ast.Stmt, err error) {
|
|
s = Stmts(Assign(Exprs(varToSet, Ident("err")), Exprs(Call(Selector("proto_base", "DecodeVarLong"), Ident("r")))), IfErrNil())
|
|
return
|
|
}
|
|
|
|
func (g *Generator) RegisterDecoderNatives() {
|
|
g.DecoderNatives = map[string]FunctionGeneratorFunc{
|
|
"container": ContainerDecoder,
|
|
"array": ArrayDecoder,
|
|
"option": OptionDecoder,
|
|
"bitflags": TypeForwardDecoder,
|
|
"switch": SwitchDecoder,
|
|
"mapper": MapperDecoder,
|
|
"buffer": BufferDecoder,
|
|
"bitfield": BitFieldDecoder,
|
|
"string": StringDecoder,
|
|
|
|
"void": DefaultDecoder,
|
|
"varint": VarIntDecoder,
|
|
"varlong": VarLongDecoder,
|
|
"anonymousNbt": DefaultDecoder,
|
|
"anonOptionalNbt": DefaultDecoder, // I have no idea what the difference is between these two
|
|
"UUID": UUIDDecoder,
|
|
"restBuffer": DefaultDecoder,
|
|
|
|
"f32": SimpleTypeDecoder,
|
|
"f64": SimpleTypeDecoder,
|
|
"i8": SimpleTypeDecoder,
|
|
"i16": SimpleTypeDecoder,
|
|
"i32": SimpleTypeDecoder,
|
|
"i64": SimpleTypeDecoder,
|
|
"u8": SimpleTypeDecoder,
|
|
"u16": SimpleTypeDecoder,
|
|
"u32": SimpleTypeDecoder,
|
|
"u64": SimpleTypeDecoder,
|
|
"bool": SimpleTypeDecoder,
|
|
|
|
"registryEntryHolder": RegistryEntryHolderDecoder,
|
|
"registryEntryHolderSet": ToDoDecoder, // RegistryEntryHolderSetDecoder
|
|
"entityMetadataLoop": ToDoDecoder,
|
|
"topBitSetTerminatedArray": ToDoDecoder,
|
|
"todo": ToDoDecoder,
|
|
}
|
|
}
|