fix some function stuff

ast/ast.go

@@ -175,7 +175,10 @@ func (be *BinaryExpression) String() string {
 type BlockExpression struct {
 	Token       token.Token // The '{'
 	Expressions []Expression
-	ReturnExpression Expression // A expression that does not end with a semicolon, there can only be one of those and it hast to be at the end
+	// NOTE: Nullable
+	//
+	// A expression that does not end with a semicolon, there can only be one of those and it has to be at the end
+	ReturnExpression Expression
 }
 
 func (be *BlockExpression) expressionNode()      {}

build/build.go

@@ -47,7 +47,7 @@ func (sp *SourceProgram) Build(backend asm.Backend, emitAsmOnly bool, toPrint To
 	id := 0
 
 	addRootNode := func(task task) int {
-		l.Debugf("registering root task %d", id)
+		l.Debugf("registering root task %d %q", id, task.Name())
 		node := &node{task: task}
 		nodes[id] = node
 		rootNodes = append(rootNodes, id)
@@ -56,7 +56,7 @@ func (sp *SourceProgram) Build(backend asm.Backend, emitAsmOnly bool, toPrint To
 	}
 
 	addNode := func(task task, deps ...int) int {
-		l.Debugf("registering task %d", id)
+		l.Debugf("registering task %d %q", id, task.Name())
 		if len(deps) <= 0 {
 			panic("node without dep is useless")
 		}

build/task.go

@@ -6,6 +6,7 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"runtime/debug"
 	"slices"
 	"strings"
 
@@ -149,7 +150,7 @@ func build(outputWriter io.Writer, input string, output string, toPrint ToPrintF
 
 	defer func() {
 		if panicErr := recover(); panicErr != nil {
-			err = fmt.Errorf("panic in build: %#v", panicErr)
+			err = fmt.Errorf("panic in build: %#v\n%s", panicErr, debug.Stack())
 		}
 	}()
 
@@ -259,8 +260,8 @@ func runTasks(nodes map[int]*node, rootNodes []int, l *utils.Logger) error {
 		if done[id] != notStarted {
 			panic(fmt.Sprintf("tried starting task %d twice", id))
 		}
-		l.Debugf("executing task %d", id)
 		node := nodes[id]
+		l.Debugf("executing task %d %q", id, node.task.Name())
 		output[id] = &strings.Builder{}
 		go node.task.Run(id, output[id], doneChan)
 		running = append(running, id)
@@ -298,7 +299,7 @@ func runTasks(nodes map[int]*node, rootNodes []int, l *utils.Logger) error {
 	for !allFinished {
 		select {
 		case result := <-doneChan:
-			l.Debugf("task %d is done with err: %v", result.Id, result.Err)
+			l.Debugf("task %d %q is done with err: %v", result.Id, nodes[result.Id].task.Name(), result.Err)
 			for i, id := range running {
 				if id == result.Id {
 					running = slices.Delete(running, i, i+1)

design.md

@@ -0,0 +1,18 @@
+# Designs
+
+Playground for language design dessisions
+
+## Function Calls
+
+```tt
+fn hi(hello: i32) = {
+    3
+};
+
+fn main() = {
+    hi!;
+    hi();
+    hi;
+};
+
+```

language.md

@@ -3,7 +3,6 @@
 ## Syntax
 
 ```tt
-// Return type is i64
 fn main() = {
     i := 3;
     i

parser/parser.go

@@ -192,6 +192,9 @@ func (p *Parser) parseArgumentList() ([]ast.Argument, bool) {
 	for p.peekTokenIs(token.Ident) {
 		p.nextToken()
 		name := p.curToken.Literal
+		if ok, _ := p.expectPeek(token.Colon); !ok {
+			return args, false
+		}
 		p.nextToken()
 		t, ok := p.parseType()
 

test.tt

@@ -1,13 +1,17 @@
 fn main() = {
-    hi := 4;
+    i := 5;
 
-    if hi == 4 {
+    if i == 5 {
-        test2 := 3;
+        0
-        hi = 0 
+    } else {
+        1
     }
-    else {
-        hi = 1
 };
 
-    test2
+fn test2(hello: i32,) = {
+    hello
+};
+
+fn test2(hello: i32,) = {
+    hello
 };

todo.md

@@ -1,3 +1,4 @@
 - [ ] Fix inconsensity in asm, change all structs to pointer
 - [ ] Fix inconsensity in Tests
 - [ ] Find a better way todo tests, like to generate a test case
+- [ ] Add packages

typechecker/variable_resolution.go

@@ -73,6 +73,11 @@ func VarResolve(p *ast.Program) (map[string]Scope, error) {
 	for _, d := range p.Declarations {
 		switch d := d.(type) {
 		case *ast.FunctionDeclaration:
+			_, ok := functionToScope[d.Name]
+			if ok {
+				return functionToScope, errorf(d.Token, "duplicate function name %q", d.Name)
+			}
+
 			s := Scope{Variables: make(map[string]Var)}
 			for _, arg := range d.Args {
 				s.SetUniq(arg.Name)
@@ -118,7 +123,9 @@ func VarResolveExpr(s *Scope, e ast.Expression) error {
 		for _, e := range e.Expressions {
 			errs = append(errs, VarResolveExpr(&newS, e))
 		}
+		if e.ReturnExpression != nil {
 			errs = append(errs, VarResolveExpr(&newS, e.ReturnExpression))
+		}
 
 		return errors.Join(errs...)
 	case *ast.IfExpression:
@@ -145,7 +152,7 @@ func VarResolveExpr(s *Scope, e ast.Expression) error {
 			return errorf(e.Token, "variable %q redefined", e.Identifier)
 		}
 
-		s.SetUniq(e.Identifier)
+		e.Identifier = s.SetUniq(e.Identifier)
 	case *ast.VariableReference:
 		v, ok := s.Get(e.Identifier)
 		if !ok {