From 85c654a102701958d3748e82ecac9c1bc4dbbcba Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Tue, 16 Jul 2019 00:27:53 +0200
Subject: Start on real bytecode & doc parsing

---
 src/ssa/ssa.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/ssa')

diff --git a/src/ssa/ssa.c b/src/ssa/ssa.c
index 91ba185..34e3e3e 100644
--- a/src/ssa/ssa.c
+++ b/src/ssa/ssa.c
@@ -16,6 +16,9 @@ do { \
         throw(return_if_result); \
 } while(0)
 
+/* Max length of a string that fits in u16 */
+#define MAX_STRING_LENGTH ((2 << 16) - 1)
+
 static int compare_number(const void *a, const void *b) {
     const SsaNumber *lhs;
     const SsaNumber *rhs;
@@ -125,6 +128,11 @@ static CHECK_RESULT int ssa_try_add_string(Ssa *self, BufferView str, SsaStringI
     /* Overflow */
     if(self->string_counter + 1 < self->string_counter)
         return -1;
+
+    if(str.size > MAX_STRING_LENGTH) {
+        amal_log_error("String \"%.*s\" is longer than %d\n", str.size, str.data, MAX_STRING_LENGTH);
+        return -2;
+    }
     
     *result_index = self->string_counter;
     ++self->string_counter;
@@ -386,6 +394,10 @@ in any order.
 */
 static CHECK_RESULT SsaRegister funcdecl_generate_ssa(FunctionDecl *self, SsaCompilerContext *context) {
     /* TODO: Implement */
+    /*
+    Reset reg counter in each function, because each function has a separate register context
+    that is reset after function end
+    */
     SsaRegister prev_reg_counter;
     prev_reg_counter = context->ssa->reg_counter;
     context->ssa->reg_counter = 0;
-- 
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