Add switch case statement

ccodegen.cpp

@@ -192,7 +192,7 @@ gen_value(Value a){
 }
 
 function void
-gen_stmt_scope(Ast_Scope *scope){
+gen_stmt_scope(Ast_Scope *scope, B32 switch_case_gen_break = 0){
   gen("{");
   global_indent++;
   For(scope->stmts) {
@@ -200,6 +200,7 @@ gen_stmt_scope(Ast_Scope *scope){
     genln("");
     gen_ast(it);
   }
+  if(switch_case_gen_break == 1) genln("break;");
   global_indent--;
   genln("}");
 }
@@ -570,6 +571,33 @@ gen_ast(Ast *ast){
       BREAK();
     }
 
+    CASE(SWITCH, Switch){
+      gen("switch(");
+      gen_expr(node->value);
+      gen("){");
+      global_indent++;
+
+      For(node->cases){
+        For_Named(it->labels, label){
+          genln("case ");
+          gen_expr(label);
+          gen(":");
+        }
+
+        gen_stmt_scope(it->scope, it->fallthrough ? false : true);
+      }
+
+      if(node->default_scope){
+        genln("default: ");
+        gen_stmt_scope(node->default_scope);
+      }
+
+      global_indent--;
+      genln("}");
+
+      BREAK();
+    }
+
     CASE(VAR_UNPACK, Var_Unpack){
       For(node->vars)
         gen_ast(it);
@@ -771,6 +799,7 @@ typedef S64      SizeS;
 typedef float    F32;
 typedef double   F64;
 typedef S32     Bool;
+typedef S64     Type;
 #define true 1
 #define false 0