Fix for WASM support

evaluator/evaluator_test.go

@@ -1586,7 +1586,7 @@ func TestStringIndexExpressions(t *testing.T) {
 }
 
 func testEval(input string) object.Object {
-	env := object.NewEnvironment(os.Stdout)
+	env := object.NewEnvironment(os.Stdout, "")
 	lex := lexer.New(input)
 	p := parser.New(lex)
 	program := p.ParseProgram()

evaluator/functions.go

@@ -792,7 +792,7 @@ func jsonFn(tok token.Token, env *object.Environment, args ...object.Object) obj
 
 	s := args[0].(*object.String)
 	str := strings.TrimSpace(s.Value)
-	env = object.NewEnvironment(env.Writer)
+	env = object.NewEnvironment(env.Writer, env.Dir)
 	l := lexer.New(str)
 	p := parser.New(l)
 	var node ast.Node
@@ -1567,8 +1567,7 @@ func sourceFn(tok token.Token, env *object.Environment, args ...object.Object) o
 // require("file.abs")
 func requireFn(tok token.Token, env *object.Environment, args ...object.Object) object.Object {
 	file := filepath.Join(env.Dir, args[0].Inspect())
-	e := object.NewEnvironment(env.Writer)
-	e.Dir = filepath.Dir(file)
+	e := object.NewEnvironment(env.Writer, filepath.Dir(file))
 	return doSource(tok, e, file, args...)
 }
 

js/js.go

@@ -23,7 +23,7 @@ func runCode(this js.Value, i []js.Value) interface{} {
 	var buf bytes.Buffer
 	// the first argument to our function
 	code := i[0].String()
-	env := object.NewEnvironment(&buf)
+	env := object.NewEnvironment(&buf, "")
 	lex := lexer.New(code)
 	p := parser.New(lex)
 

object/environment.go

@@ -2,7 +2,6 @@ package object
 
 import (
 	"io"
-	"os"
 	"sort"
 )
 
@@ -11,17 +10,18 @@ import (
 // new environment has access to identifiers stored
 // in the outer one.
 func NewEnclosedEnvironment(outer *Environment) *Environment {
-	env := NewEnvironment(outer.Writer)
+	env := NewEnvironment(outer.Writer, outer.Dir)
 	env.outer = outer
 	return env
 }
 
 // NewEnvironment creates a new environment to run
-// ABS in
-func NewEnvironment(w io.Writer) *Environment {
+// ABS in, specifying a writer for the output of the
+// program and the base dir (which is used to require
+// other scripts)
+func NewEnvironment(w io.Writer, dir string) *Environment {
 	s := make(map[string]Object)
-	d, _ := os.Getwd()
-	return &Environment{store: s, outer: nil, Writer: w, Dir: d}
+	return &Environment{store: s, outer: nil, Writer: w, Dir: dir}
 }
 
 // Environment represent the environment associated

repl/repl.go

@@ -37,7 +37,8 @@ var (
 )
 
 func init() {
-	env = object.NewEnvironment(os.Stdout)
+	d, _ := os.Getwd()
+	env = object.NewEnvironment(os.Stdout, d)
 }
 
 func completer(d prompt.Document) []prompt.Suggest {