Use a modified version of cmd/api tool to include gopherjs/js package.

Author: dmitshur

playground/imports/gen.go

@@ -1,3 +1,4 @@
+//go:generate go run mkapi.go -output=gojs.txt -gopath github.com/gopherjs/gopherjs/js
 //go:generate go run mkstdlib.go -output=zstdlib
 
 package imports

playground/imports/gojs.txt

@@ -0,0 +1,50 @@
+pkg github.com/gopherjs/gopherjs/js, func Debugger()
+pkg github.com/gopherjs/gopherjs/js, func InternalObject(interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, func Keys(*Object) []string
+pkg github.com/gopherjs/gopherjs/js, func MakeFunc(func(*Object, []*Object) interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, func MakeWrapper(interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, func NewArrayBuffer([]uint8) *Object
+pkg github.com/gopherjs/gopherjs/js, method (*Error) Error() string
+pkg github.com/gopherjs/gopherjs/js, method (*Error) Stack() string
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Bool() bool
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Call(string, ...interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Delete(string)
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Float() float64
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Get(string) *Object
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Index(int) *Object
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Int() int
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Int64() int64
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Interface() interface{}
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Invoke(...interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Length() int
+pkg github.com/gopherjs/gopherjs/js, method (*Object) New(...interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Set(string, interface{})
+pkg github.com/gopherjs/gopherjs/js, method (*Object) SetIndex(int, interface{})
+pkg github.com/gopherjs/gopherjs/js, method (*Object) String() string
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Uint64() uint64
+pkg github.com/gopherjs/gopherjs/js, method (*Object) Unsafe() uintptr
+pkg github.com/gopherjs/gopherjs/js, method (Error) Bool() bool
+pkg github.com/gopherjs/gopherjs/js, method (Error) Call(string, ...interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, method (Error) Delete(string)
+pkg github.com/gopherjs/gopherjs/js, method (Error) Float() float64
+pkg github.com/gopherjs/gopherjs/js, method (Error) Get(string) *Object
+pkg github.com/gopherjs/gopherjs/js, method (Error) Index(int) *Object
+pkg github.com/gopherjs/gopherjs/js, method (Error) Int() int
+pkg github.com/gopherjs/gopherjs/js, method (Error) Int64() int64
+pkg github.com/gopherjs/gopherjs/js, method (Error) Interface() interface{}
+pkg github.com/gopherjs/gopherjs/js, method (Error) Invoke(...interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, method (Error) Length() int
+pkg github.com/gopherjs/gopherjs/js, method (Error) New(...interface{}) *Object
+pkg github.com/gopherjs/gopherjs/js, method (Error) Set(string, interface{})
+pkg github.com/gopherjs/gopherjs/js, method (Error) SetIndex(int, interface{})
+pkg github.com/gopherjs/gopherjs/js, method (Error) String() string
+pkg github.com/gopherjs/gopherjs/js, method (Error) Uint64() uint64
+pkg github.com/gopherjs/gopherjs/js, method (Error) Unsafe() uintptr
+pkg github.com/gopherjs/gopherjs/js, type Error struct
+pkg github.com/gopherjs/gopherjs/js, type Error struct, embedded *Object
+pkg github.com/gopherjs/gopherjs/js, type M map[string]interface{}
+pkg github.com/gopherjs/gopherjs/js, type Object struct
+pkg github.com/gopherjs/gopherjs/js, type S []interface{}
+pkg github.com/gopherjs/gopherjs/js, var Global *Object
+pkg github.com/gopherjs/gopherjs/js, var Module *Object
+pkg github.com/gopherjs/gopherjs/js, var Undefined *Object