From 9ce9a7f510e6ba407c2e14d3eae4d603b38edde7 Mon Sep 17 00:00:00 2001
From: Bad Diode <bd@badd10de.dev>
Date: Fri, 22 Oct 2021 13:58:02 +0200
Subject: Prepare compilation pipeline

---
 src/bytecode/vm.h | 35 ++++++++++++++++++++---------------
 1 file changed, 20 insertions(+), 15 deletions(-)

(limited to 'src/bytecode/vm.h')

diff --git a/src/bytecode/vm.h b/src/bytecode/vm.h
index 6c5dfa7..f9e64d1 100644
--- a/src/bytecode/vm.h
+++ b/src/bytecode/vm.h
@@ -18,27 +18,33 @@ typedef struct VM {
     Object *stack;
 } VM;
 
-VM vm_init(void);
-void vm_free(VM vm);
-void vm_interpret(VM vm);
+void vm_init(VM *vm);
+void vm_free(VM *vm);
+void vm_reset(VM *vm);
+void vm_interpret(VM vm, Chunk *chunk);
 
-VM
-vm_init(void) {
-    VM vm = {
-        .chunk = chunk_init(),
-    };
-    array_init(vm.stack, VM_STACK_CAP);
-    return vm;
+void
+vm_init(VM *vm) {
+    *vm = (VM){0};
+    array_init(vm->stack, VM_STACK_CAP);
+}
+
+void
+vm_free(VM *vm) {
+    array_free(vm->stack);
 }
 
 void
-vm_free(VM vm) {
-    chunk_free(vm.chunk);
-    array_free(vm.stack);
+vm_reset(VM *vm) {
+    vm_free(vm);
+    vm_init(vm);
 }
 
 void
-vm_interpret(VM vm) {
+vm_interpret(VM vm, Chunk *chunk) {
+    vm.chunk = chunk;
+    vm.pc = vm.chunk->code;
+
     if (vm.chunk->code == NULL || array_size(vm.chunk->code) == 0) {
         error_push((Error){
             .type = ERR_TYPE_RUNTIME,
@@ -47,7 +53,6 @@ vm_interpret(VM vm) {
         return;
     }
 
-    vm.pc = vm.chunk->code;
     u8 *last = vm.chunk->code + array_size(vm.chunk->code);
     while (vm.pc < last) {
 #ifdef DEBUG_TRACE_EXECUTION
-- 
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