From cd39dd225200533d9cd69b16ca4f5f35520593aa Mon Sep 17 00:00:00 2001
From: mertcandav <mertcandav@outlook.com>
Date: Sat, 3 Aug 2024 13:37:01 +0300
Subject: [PATCH] sema: fix lvalue analysis of indexing epxressions

---
 std/jule/sema/eval.jule | 9 +++++++--
 std/jule/sema/type.jule | 7 +++----
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/std/jule/sema/eval.jule b/std/jule/sema/eval.jule
index c161b6e3b..6f5e6d6e8 100644
--- a/std/jule/sema/eval.jule
+++ b/std/jule/sema/eval.jule
@@ -921,6 +921,7 @@ impl Eval {
 
     fn indexingPtr(mut self, mut &d: &Data, mut &index: &Data, &i: &IndexingExpr) {
         self.checkIntegerIndexingByData(index, i.Token)
+        d.Lvalue = true
 
         let mut ptr = d.Kind.Ptr()
         match {
@@ -938,6 +939,7 @@ impl Eval {
         let mut arr = d.Kind.Arr()
         d.Kind = arr.Elem
         self.checkIntegerIndexingByData(index, i.Token)
+        d.Lvalue = true
         if index.IsConst() && index.Constant.AsF64() >= f64(arr.N) {
             self.pushErr(i.Token, LogMsg.OverflowLimits)
         }
@@ -947,6 +949,7 @@ impl Eval {
         let mut slc = d.Kind.Slc()
         d.Kind = slc.Elem
         self.checkIntegerIndexingByData(index, i.Token)
+        d.Lvalue = true
 
         // Check compile-time bounds.
         if !index.IsConst() {
@@ -966,6 +969,7 @@ impl Eval {
     }
 
     fn indexingMap(mut self, mut &d: &Data, mut &index: &Data, mut &i: &IndexingExpr) {
+        d.Lvalue = true
         if index == nil {
             ret
         }
@@ -983,6 +987,7 @@ impl Eval {
     fn indexingStr(mut self, mut &d: &Data, mut &index: &Data, &i: &IndexingExpr) {
         d.Kind = primU8 // Byte
         d.Mutable = false
+        d.Lvalue = true
 
         if index == nil {
             ret
@@ -1241,7 +1246,7 @@ impl Eval {
             ret d
         }
 
-        let mut old_d = *d
+        let mut oldData = *d
 
         let mut index = self.evalExpr(i.Index)
         if index == nil {
@@ -1262,7 +1267,7 @@ impl Eval {
         } else {
             d.Model = &IndexingExprModel{
                 Token: i.Token,
-                Expr: new(Data, old_d),
+                Expr: new(Data, oldData),
                 Index: index,
             }
         }
diff --git a/std/jule/sema/type.jule b/std/jule/sema/type.jule
index d7eab7619..b9e4b8468 100644
--- a/std/jule/sema/type.jule
+++ b/std/jule/sema/type.jule
@@ -1758,11 +1758,10 @@ fn hasDirective(mut &directives: []&ast::Directive, tag: str): bool {
 }
 
 fn canGetPtr(mut &d: &Data): bool {
-    if !d.Lvalue || d.IsConst() {
-        ret false
-    }
     match {
-    | d.Kind.Fn() != nil || d.Kind.Enum() != nil:
+    | !d.Lvalue | d.IsConst(): 
+        ret false
+    | d.Kind.Fn() != nil | d.Kind.Enum() != nil:
         ret false
     |:
         ret true