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run.go
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run.go
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package bot
import (
"errors"
"strings"
"time"
"github.com/Nv7-Github/bsharp/backends/cgen"
"github.com/Nv7-Github/bsharp/backends/interpreter"
"github.com/Nv7-Github/bsharp/ir"
"github.com/Nv7-Github/bsharp/parser"
"github.com/Nv7-Github/bsharp/tokens"
"github.com/Nv7-Github/sevcord"
)
type fs struct {
b *Bot
gld string
}
func (f *fs) Parse(file string) (*parser.Parser, error) {
id := strings.TrimSuffix(file, ".bsp")
dat, err := f.b.Get(f.gld)
if err != nil {
return nil, err
}
src, rsp := dat.GetSource(id)
if !rsp.Suc {
return nil, errors.New(rsp.Msg)
}
stream := tokens.NewStream(file, src)
tok := tokens.NewTokenizer(stream)
err = tok.Tokenize()
if err != nil {
return nil, err
}
parser := parser.NewParser(tok)
err = parser.Parse()
if err != nil {
return nil, err
}
return parser, nil
}
// ctxWriter is an io.Writer implementation around *Ctx
type ctxWriter struct {
sevcord.Ctx
lastSent time.Time
data *strings.Builder
prog *interpreter.Interpreter
cmps [][]sevcord.Component
}
func newCtxWriter(ctx sevcord.Ctx) *ctxWriter {
return &ctxWriter{Ctx: ctx}
}
func (c *ctxWriter) Setup() {
emb := sevcord.NewEmbedBuilder("Program Output").Color(3447003).Description("Running...")
rsp := sevcord.EmbedResponse(emb)
for _, cmp := range c.cmps {
rsp.ComponentRow(cmp...)
}
c.data = &strings.Builder{}
c.Respond(rsp)
c.lastSent = time.Now()
}
func (c *ctxWriter) Flush() error {
var err error
var emb *sevcord.EmbedBuilder
if len(c.data.String()) == 0 {
emb = sevcord.NewEmbedBuilder("Program Successful").Color(5763719).Description("⚠️ **WARNING**: No program output!")
} else {
emb = sevcord.NewEmbedBuilder("Program Output").Color(5763719).Description("```" + c.data.String() + "```")
}
rsp := sevcord.EmbedResponse(emb)
for _, cmp := range c.cmps {
rsp.ComponentRow(cmp...)
}
c.Edit(rsp)
c.lastSent = time.Now()
return err
}
func (c *ctxWriter) Write(b []byte) (int, error) {
n, err := c.data.Write(b)
if time.Since(c.lastSent).Milliseconds() > 200 { // Update every 200ms
err = c.Flush()
}
return n, err
}
func (c *ctxWriter) Error(err error) {
var emb *sevcord.EmbedBuilder
if len(c.data.String()) == 0 {
emb = sevcord.NewEmbedBuilder("Runtime Error").Color(15548997).Field("Error", "```"+err.Error()+"```", false)
} else {
emb = sevcord.NewEmbedBuilder("Runtime Error").Color(15548997).Field("Output", "```"+c.data.String()+"```", false).Field("Error", "```"+err.Error()+"```", false)
}
rsp := sevcord.EmbedResponse(emb)
for _, cmp := range c.cmps {
rsp.ComponentRow(cmp...)
}
c.Edit(rsp)
}
func (b *Bot) BuildCode(filename string, src string, ctx sevcord.Ctx) (*ir.IR, error) {
stream := tokens.NewStream(filename, src)
tok := tokens.NewTokenizer(stream)
err := tok.Tokenize()
if err != nil {
return nil, err
}
parser := parser.NewParser(tok)
err = parser.Parse()
if err != nil {
return nil, err
}
bld := ir.NewBuilder()
for _, ext := range Exts {
bld.AddExtension(ext)
}
err = bld.Build(parser, &fs{b: b, gld: ctx.Guild()})
if err != nil {
e := &strings.Builder{}
e.WriteString("```")
for _, v := range bld.Errors {
e.WriteString(v.Pos.Error("%s", v.Message).Error())
e.WriteRune('\n')
}
e.WriteString(err.Error())
e.WriteString("```")
return nil, errors.New(e.String())
}
return bld.IR(), nil
}
func (b *Bot) CompileCode(filename, src string, ctx sevcord.Ctx) (string, error) {
ir, err := b.BuildCode(filename, src, ctx)
if err != nil {
return "", err
}
cgen := cgen.NewCGen(ir)
return cgen.Build()
}
const MaxTime = time.Second * 150
func (c *ctxWriter) UpdateCmps() {
c.cmps = [][]sevcord.Component{{
&sevcord.Button{
Label: "Stop",
Style: sevcord.ButtonStyleDanger,
Handler: func(ctx sevcord.Ctx) {
if ctx.User().ID != c.User().ID {
return
}
c.prog.Stop("program stopped by user")
c.Ctx = ctx
},
},
}}
}
func (b *Bot) RunCode(filename string, src string, ctx sevcord.Ctx, extensionCtx *extensionCtx) error {
ir, err := b.BuildCode(filename, src, ctx)
if err != nil {
return err
}
stdout := newCtxWriter(ctx)
stdout.UpdateCmps()
stdout.Setup()
extensionCtx.Stdout = stdout
interp := interpreter.NewInterpreter(ir, stdout)
stdout.prog = interp
exts := getExtensions(extensionCtx)
for _, ext := range exts {
interp.AddExtension(ext)
}
// Run
var done = false
go func() {
time.Sleep(MaxTime)
if !done {
interp.Stop("program exceeded time limit of 2.5 minutes")
}
}()
err = interp.Run()
stdout.cmps = [][]sevcord.Component{{
&sevcord.Button{
Label: "Stop",
Style: sevcord.ButtonStyleDanger,
Disabled: true,
},
}}
done = true
flusherr := stdout.Flush()
if err != nil {
stdout.Error(err)
return nil
}
return flusherr
}