Calling injected function in same package files (returns undefined error)

[r3v4s]

Description

To fix bug #875, I had to use injected function std.GetOrigCaller in banker.gno which located in std

GetOrigCaller() is being injected from here into std package

gno/gnovm/stdlibs/stdlibs.go

Lines 247 to 264 in e392ab5

	pn.DefineNative("GetOrigCaller",
	gno.Flds( // params
	),
	gno.Flds( // results
	"", "Address",
	),
	func(m *gno.Machine) {
	ctx := m.Context.(ExecContext)
	res0 := gno.Go2GnoValue(
	m.Alloc,
	m.Store,
	reflect.ValueOf(ctx.OrigCaller),
	)
	addrT := store.GetType(gno.DeclaredTypeID("std", "Address"))
	res0.T = addrT
	m.PushValue(res0)
	},
	)

So I thought the package std declared by banker.gno

gno/gnovm/stdlibs/std/banker.gno

Line 1 in e392ab5

package std

is the same package with std inject by stdlibs.go

gno/gnovm/stdlibs/stdlibs.go

Line 144 in e392ab5

case "std":

But calling GetOrigCaller in banker.gno returned undefined error
Is is intended structure??

[thehowl]

@r3v4s the way that native imports are implemented are that when you import a package, ie. you write import "std", the gnovm loads the package's symbols, and on top of them some extra native bindings.

Notice that this means that native functions are only available to external users of the package; not from the package itself. This is one of the things I aim to improve/fix with #814.

For now, if you need to fix the bug, a good idea might be to extend stdlibs.go to go from case "std" to case "std", "internal/stdnative"; so that after that, calling GetOrigCaller becomes possible from banker.gno, by importing internal/stdnative.

[r3v4s]

@r3v4s the way that native imports are implemented are that when you import a package, ie. you write import "std", the gnovm loads the package's symbols, and on top of them some extra native bindings.

Notice that this means that native functions are only available to external users of the package; not from the package itself. This is one of the things I aim to improve/fix with #814.

For now, if you need to fix the bug, a good idea might be to extend stdlibs.go to go from case "std" to case "std", "internal/stdnative"; so that after that, calling GetOrigCaller becomes possible from banker.gno, by importing internal/stdnative.

thx @thehowl, perhaps I have to stick with internal/stdnative for now.
I'll keep my eye open for your #814 :D