fix assigning to dereference access in a chain

3 files changed, 26 insertions, 5 deletions

diff --git a/code/lib/memory.felan b/code/lib/memory.felan
index 55451c5..2710685 100644
--- a/code/lib/memory.felan
+++ b/code/lib/memory.felan
@@ -2,12 +2,23 @@
 
 libc :: @c_library("/usr/lib/libc.so.6");
 malloc :: @c_function(libc,"malloc",(i64)->(*void));
+realloc :: @c_function(libc,"realloc",(*void,i64)->(*void));
 free :: @c_function(libc,"free",(*void)->void);
 
 malloc :: (size:i64,comptime t:type) -> (*t) {
   return @cast(malloc(size*@cast(@size_of(t),i64)),*t);
 };
 
+realloc :: (ptr:*anytype,size:u64) -> (@type_of(ptr)) {
+  return @cast(
+    realloc(
+      @cast(ptr,*void),
+      @cast(size*@size_of(@type_of(ptr.*)),i64),
+    ),
+    @type_of(ptr)
+  );
+};
+
 free :: (ptr:*anytype) -> void {
   free(@cast(ptr,*void));
 };
diff --git a/code/lib/vector.felan b/code/lib/vector.felan
index a33d386..d6faece 100644
--- a/code/lib/vector.felan
+++ b/code/lib/vector.felan
@@ -21,16 +21,26 @@ __get_item__ :: (left:vector(anytype),index:i64) -> (@type_of(left.ptr.*)) {
   return (left.ptr + index).*;
 };
 
-__set_item__ :: (left:vector(anytype),index:i64,item:@type_of(left.ptr.*)) -> (@type_of(left.ptr.*)) {
+__set_item__ :: (left:*vector(anytype),index:i64,item:@type_of(left.*.ptr.*)) -> (@type_of(left.ptr.*)) {
   return (left.ptr + index).* = item;
 };
 
-__get_item_address__ :: (left:vector(anytype),index:i64) -> (@type_of(left.ptr)) {
+__get_item_address__ :: (left:*vector(anytype),index:i64) -> (@type_of(left.*.ptr)) {
   return (left.ptr + index);
 };
 
-push_back :: (vec:vector(anytype),value:@type_of(vec.ptr.*)) -> void {
-  @putc('h');
+push_back :: (vec:*vector(anytype),value:@type_of(vec.*[0])) -> void {
+  _grow_if_needed(vec);
+};
+
+_grow_if_needed :: (vec:*vector(anytype)) -> void {
+  if vec.*.size == vec.*.capacity {
+    @putc('a');
+    vec.*.capacity = vec.*.capacity + vec.*.capacity/2u64 + 1u64;
+    vec.*.ptr = realloc(vec.*.ptr,vec.*.capacity);
+  }else{
+    @putc('b');
+  }
 };
 
 delete :: (vec:vector(anytype)) -> void {
diff --git a/code/main.felan b/code/main.felan
index 20c815a..63f98a2 100644
--- a/code/main.felan
+++ b/code/main.felan
@@ -30,7 +30,7 @@ t :: (comptime formatter : string) macro -> void {
 main :: () -> void {
   v := vector_new(u8);
 
-  push_back(v,2u8);
+  push_back(&v,'2');
 
   delete(v);
 };