babygo👶 is a small Go compiler made from scratch, which can compile itself. It's going to be the smallest and simplest go compiler in the world.
License: MIT License
ここはDQNEOのメモ用レポジトリです。
I want them to be initialized in a function at runtime in compiler source.
var a uint8 = 'a'
var b uint8 = 'b'
var c uint8 = 'c'
d := receiveBytes(a, b, c) 0x001d 00029 (sample.go:14) MOVB $97, "".a+23(SP)
0x0022 00034 (sample.go:15) MOVB $98, "".b+22(SP)
0x0027 00039 (sample.go:16) MOVB $99, "".c+21(SP)
0x002c 00044 (sample.go:17) MOVBLZX "".a+23(SP), AX
0x0031 00049 (sample.go:17) MOVB AL, (SP)
0x0034 00052 (sample.go:17) MOVBLZX "".b+22(SP), AX
0x0039 00057 (sample.go:17) MOVB AL, 1(SP)
0x003d 00061 (sample.go:17) MOVB $99, 2(SP)
0x0042 00066 (sample.go:17) PCDATA $1, $0
0x0042 00066 (sample.go:17) CALL "".receiveBytes(SB)
0x0047 00071 (sample.go:17) MOVBLZX 8(SP), AX
0x004c 00076 (sample.go:17) MOVB AL, "".d+20(SP)
var fn = myFunc
fn()package main
import "reflect"
import "fmt"
type MyType struct {
id int
}
func main() {
fmt.Printf("%s\n", reflect.TypeOf(&MyType{}).String())
}*main.MyType
Want to do this
type Type = ast.TypeShowing ioc at runtime panic will be super helpful.
https://sourceware.org/binutils/docs/as/Loc.html#Loc
needed for #74
Currently, array of which length is more than 9 cannot be compiled.
type MyInt int
type MyMyInt MyInt
type ForeignInt another.MyIntSame as the official go
func multiVars(a uint8, b uint8, c uint8) (uint8, uint8, uint8) {
return a, b, c
}"".multiVars STEXT nosplit size=43 args=0x10 locals=0x0
0x0000 00000 (sample/sample.go:5) TEXT "".multiVars(SB), NOSPLIT|ABIInternal, $0-16
0x0000 00000 (sample/sample.go:5) FUNCDATA $0, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x0000 00000 (sample/sample.go:5) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)
0x0000 00000 (sample/sample.go:5) MOVB $0, "".~r3+16(SP)
0x0005 00005 (sample/sample.go:5) MOVB $0, "".~r4+17(SP)
0x000a 00010 (sample/sample.go:5) MOVB $0, "".~r5+18(SP)
0x000f 00015 (sample/sample.go:6) MOVBLZX "".a+8(SP), AX
0x0014 00020 (sample/sample.go:6) MOVB AL, "".~r3+16(SP)
0x0018 00024 (sample/sample.go:6) MOVBLZX "".b+9(SP), AX
0x001d 00029 (sample/sample.go:6) MOVB AL, "".~r4+17(SP)
0x0021 00033 (sample/sample.go:6) MOVBLZX "".c+10(SP), AX
0x0026 00038 (sample/sample.go:6) MOVB AL, "".~r5+18(SP)
0x002a 00042 (sample/sample.go:6) RET
0x0000 c6 44 24 10 00 c6 44 24 11 00 c6 44 24 12 00 0f .D$...D$...D$...
0x0010 b6 44 24 08 88 44 24 10 0f b6 44 24 09 88 44 24 .D$..D$...D$..D$
0x0020 11 0f b6 44 24 0a 88 44 24 12 c3 ...D$..D$..
go run should be run on macOSas in ioutil.ReadFile()
Currently in some cases slice == nil gives false even if slice is nil.
when slice is nil,
| expression | value |
|---|---|
| slice == nil | true |
| nil == slice | true |
| slice =! nil | false |
| nil != slice | false |
when slice is non-nil,
| expression | value |
|---|---|
| slice == nil | false |
| nil == slice | false |
| slice =! nil | true |
| nil != slice | true |
%v, %#v, %T, %p
i clone the project, compile it locally use go build -o babygo main.go, and the compiler output:
local machine go env:
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/dingwenjiang/Library/Caches/go-build"
GOENV="/Users/dingwenjiang/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GONOPROXY="*.byted.org,*.everphoto.cn,git.smartisan.com"
GONOSUMDB="*.byted.org,*.everphoto.cn,git.smartisan.com"
GOOS="darwin"
GOPATH="/Users/dingwenjiang/go"
GOPRIVATE="*.byted.org,*.everphoto.cn,git.smartisan.com"
GOPROXY="https://goproxy.byted.org,https://goproxy.cn,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.google.cn"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/b1/c9m_f9ds2d15433dvj3b24n00000gp/T/go-build018035766=/tmp/go-build -gno-record-gcc-switches -fno-common"
Consider these cases
str := string(slice)
slice[0] = 'X'str := "hello"
slice := []byte(str)
slice[0] = 'X'for readFile()
Blocking #2
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