A work-in-progress Go to Python transpiler.
It can currently only compile toy programs.
This will compile the package at path ./mypackage into a Python module mypackage.py:
gotopython -o mypackage.py ./mypackage
The parts of the Go language spec that are implemented are:
| Expression |
Example |
Implemented |
| BadExpr |
|
n/a |
| Ident |
myVar |
✓ |
| Ellipsis |
... |
|
| BasicLit |
42 |
✓ |
| FuncLit |
func(t T) {} |
✓ |
| CompositeLit |
T{x: 1, y: 2} |
✓ |
| ParenExpr |
(x) |
✓ |
| SelectorExpr |
x.y |
✓ |
| IndexExpr |
x[y] |
✓ |
| SliceExpr |
x[y:z] |
✓ |
| TypeAssertExpr |
x.(T) |
|
| CallExpr |
x(y,z) |
✓ |
| StarExpr |
*x |
✓ |
| UnaryExpr |
-x |
✓ |
| BinaryExpr |
x+y |
✓ |
| KeyValueExpr |
x: y |
✓ |
| ArrayType |
[]T |
✓ |
| StructType |
struct { T x } |
✓ |
| FuncType |
func(T) U |
✓ |
| InterfaceType |
interface {} |
|
| MapType |
map[T]U |
✓ |
| ChanType |
chan<- T |
|
| Statement |
Example |
Implemented |
| BadStmt |
|
n/a |
| DeclStmt |
var x T const x = 1 |
✓ |
| EmptyStmt |
|
✓ |
| LabeledStmt |
label: ... |
|
| ExprStmt |
x |
✓ |
| SendStmt |
x <- y |
|
| IncDecStmt |
x++ |
✓ |
| AssignStmt |
x, y := z |
✓ |
| GoStmt |
go f() |
|
| DeferStmt |
defer f() |
✓ |
| ReturnStmt |
return x, y |
1 |
| BranchStmt |
break |
✓ |
| BlockStmt |
{...} |
✓ |
| IfStmt |
if x; y {...} |
✓ |
| CaseClause |
case x>y: |
✓ |
| SwitchStmt |
switch x; y {...} |
2 |
| TypeSwitchStmt |
switch x.(type) {...} |
✓ |
| CommClause |
case x = <-y: ... |
|
| SelectStmt |
select { ... } |
|
| ForStmt |
for x; y; z {...} |
✓ |
| RangeStmt |
for x, y := range z {...} |
3 |
- No argumentless return in functions with named return values
- No
fallthrough
- Only for array/slice
| Spec |
Example |
Implemented |
| ImportSpec |
import "x" |
|
| ValueSpec |
var x T const x = 1 |
✓ |
| TypeSpec |
type T U |
✓ |
| Built-in function |
Implemented |
close |
|
len |
✓ |
cap |
1 |
new |
✓ |
make([]T) |
✓ |
make(map[T]U) |
✓ |
make(chan T) |
|
append |
|
copy |
|
delete |
✓ |
complex |
✓ |
real |
✓ |
imag |
✓ |
panic |
|
recover |
|
print |
|
println |
|
cap is translated to len
| Language feature |
Implemented |
| fixed width integers |
|
| struct copying |
|
| pass by value |
|
| package unsafe |
|
| goroutines |
|
| Imports |
|
| Name collisions |
|
| Scoping rules |
|
fallthrough |
|
goto |
|
| cgo |
|
