Add pub keyword, more import stuff, optimize hash map

Hash map now stores hash of keys to reduce the number of hash
operations.
Positive: faster insert/get.
Negative: more space required (to store usize hash).

3 files changed, 4 insertions, 2 deletions

diff --git a/tests/io.amal b/tests/io.amal
index 5505d44..0e1a682 100644
--- a/tests/io.amal
+++ b/tests/io.amal
@@ -1,5 +1,5 @@
 const a = @import("sub/a.amal");
 
-const puts = fn {
+pub const puts = fn {
     
 }
\ No newline at end of file
diff --git a/tests/main.amal b/tests/main.amal
index d085501..65ac43b 100644
--- a/tests/main.amal
+++ b/tests/main.amal
@@ -15,7 +15,8 @@ const main = fn {
     const num2 = 23232;
     const num3 = num1 + num2 * 30;
     const num4 = (num1 + num2) * num3 * ((34 + 32) / 234.345);
-    //const num4 = 23;
+    // pub cost num34 = 45; // error, only declarations in global scope can be public
+    //const num4 = 23; // error, variable redeclaration
     /*
     episfjpseifipesf
     */
diff --git a/tests/main.c b/tests/main.c
index 2b57bcf..0dfd878 100644
--- a/tests/main.c
+++ b/tests/main.c
@@ -41,6 +41,7 @@ static CHECK_RESULT int test_hash_map() {
     return 0;
 }
 
+/* TODO: Restrict variables in global scope to const */
 int main() {
     amal_compiler compiler;
     FileScopeReference *file_scope;