move to a direct byte code compiler (#8)

* chore: refactor to keep only the new parser and bytecode vm

* scanner: remove Token.value field

* scanner: remove scanner.kind field

* chore: move language specification in lang package

This avoid a cyclic dependency in scanner_test which can now use
the golang/GoSpec language specification for Go.

* clean code

* scanner: export scanner fields

Also parser now generate function calls, including externals.

* chore: fix lint issues

* parser: handle strings

* wip

* parser: implement support for 'if, else, else if' statements

Resolving labels in the compiler still in progress.

* parser: support if statements, improve compiler

* improve handling of functions

* improve support of local variables

* scanner: trim leading and trailing spaces

* fixes to make fibonacci work

* parser: improve README, fix function parameters parsing

1 files changed, 0 insertions, 48 deletions

diff --git a/codegen/interpreter_test.go b/codegen/interpreter_test.go
deleted file mode 100644
index 2563677..0000000
--- a/codegen/interpreter_test.go
+++ /dev/null
@@ -1,48 +0,0 @@
-package codegen
-
-import (
-	"fmt"
-	"testing"
-
-	"github.com/gnolang/parscan/lang/golang"
-)
-
-func TestEval(t *testing.T) {
-	for _, test := range evalTests {
-		test := test
-		t.Run("", func(t *testing.T) {
-			interp := NewInterpreter(golang.GoParser)
-			errStr := ""
-			r, e := interp.Eval(test.src)
-			if e != nil {
-				errStr = e.Error()
-			}
-			if errStr != test.err {
-				t.Errorf("got error %#v, want error %#v", errStr, test.err)
-			}
-			res := fmt.Sprintf("%v", r)
-			if res != test.res {
-				t.Errorf("got %#v, want %#v", res, test.res)
-			}
-		})
-	}
-}
-
-var evalTests = []struct {
-	name, src, res, err string
-}{{ // #00
-	src: "1 + 2",
-	res: "3",
-}, { // #01
-	src: "a := 2; a = a + 3",
-	res: "5",
-}, { // #02
-	src: "func f(a int) int { return a + 1 }; f(5)",
-	res: "6",
-}, { // #03
-	src: "func f(a int) (b int) { b = a + 1; return b }; f(5)",
-	res: "6",
-}, { // #04
-	src: "func f(a int) (b int) { b = a + 1; return }; f(5)",
-	res: "6",
-}}