Add importing, lists and objects, and add basic functions (global and on values)

cli/main.go

@@ -5,6 +5,7 @@ import (
 	"log"
 	"neemek.com/anglais/core"
 	"os"
+	"path/filepath"
 )
 
 type Context struct {
@@ -16,6 +17,37 @@ type RunCmd struct {
 	File     string `arg:"" name:"file" help:"File to read program from" type:"existingfile"`
 }
 
+// WorkingDirectoryResolver resolves imports relative to the working directory
+type WorkingDirectoryResolver struct {
+	workingDirectory string
+}
+
+func (r *WorkingDirectoryResolver) Resolve(path string) (core.Node, error) {
+	pth := filepath.Join(r.workingDirectory, path)
+	f, err := os.ReadFile(pth)
+	if err != nil {
+		return nil, err
+	}
+
+	str := string(f)
+
+	l := core.NewLexer(str)
+
+	tokens, err := l.Tokenize()
+	if err != nil {
+		return nil, err
+	}
+
+	p := core.NewParser(tokens)
+
+	tree, err := p.Parse()
+	if err != nil {
+		return nil, err
+	}
+
+	return tree, nil
+}
+
 func (cmd *RunCmd) Run(ctx *Context) error {
 	if ctx.Debug {
 		log.Println("Reading file")
@@ -72,6 +104,15 @@ func (cmd *RunCmd) Run(ctx *Context) error {
 		}
 		c := core.NewCompiler()
 
+		if ctx.Debug {
+			log.Println("Setting imports resolver")
+		}
+
+		dir, _ := filepath.Split(cmd.File)
+		c.SetImportsResolver(&WorkingDirectoryResolver{
+			dir,
+		})
+
 		if ctx.Debug {
 			log.Println("Compiling parse tree")
 		}
@@ -162,8 +203,18 @@ func (cmd *CompileCmd) Run(ctx *Context) error {
 	if ctx.Debug {
 		log.Println("Initialized compiler")
 	}
+
 	c := core.NewCompiler()
 
+	if ctx.Debug {
+		log.Println("Setting import resolver")
+	}
+
+	dir, _ := filepath.Split(cmd.File)
+	c.SetImportsResolver(&WorkingDirectoryResolver{
+		dir,
+	})
+
 	if ctx.Debug {
 		log.Println("Compiling parse tree")
 	}