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lang: Switch to callee cleanup of non-return arguments

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This simplifies calling things and will allow proper tail calls.
This commit is contained in:
Jookia 2023-07-31 16:21:43 +10:00
parent 74c622a1ba
commit 6aef030766
4 changed files with 6 additions and 10 deletions
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7
lang/bytecode.c
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@ -20,10 +20,9 @@ enum opcodes {
static const unsigned char bytecode[] = {
0x05, 0x05, 0x05, 0x01, 0x6a, 0x02, 0x00, 0x00, 0x07, 0x01,
0x05, 0x06, 0x01, 0x06, 0x01, 0x04, 0x02, 0x41, 0x64, 0x64,
0x00, 0x08, 0x01, 0x07, 0x02, 0x05, 0x01, 0x02, 0x00, 0x00,
0x00, 0x06, 0x02, 0x04, 0x02, 0x4d, 0x69, 0x6e, 0x75, 0x73,
0x00, 0x08, 0x01, 0x07, 0x03, 0x06, 0x03, 0x07, 0x00, 0x08,
0x03, 0x03,
0x00, 0x07, 0x02, 0x05, 0x01, 0x02, 0x00, 0x00, 0x00, 0x06,
0x02, 0x04, 0x02, 0x4d, 0x69, 0x6e, 0x75, 0x73, 0x00, 0x07,
0x03, 0x06, 0x03, 0x07, 0x00, 0x08, 0x03, 0x03,
};
// clang-format on

2
lang/compile.py
View file

@ -250,12 +250,10 @@ def generate_ir_call(ast):
args_count = len(ast.args)
alloc_ir = [IRAllocate(1)]
call_ir = [IRCall(ast.verb, args_count)]
drop_ir = [IRDrop(args_count)]
final_ir = final_ir + alloc_ir
final_ir = final_ir + args_ir
final_ir = final_ir + subject_ir
final_ir = final_ir + call_ir
final_ir = final_ir + drop_ir
return final_ir
def generate_ir_set(ast):

3
lang/main.c
View file

@ -13,9 +13,8 @@ static void test_number(struct vm_state *state) {
vm_stack_push(state, numB);
numB = NULL;
vm_call(numA, "Add", 2, state);
struct object *numC = vm_stack_get(state, 0);
struct object *numC = vm_stack_pop(state);
printf("numC value is %i\n", number_value(numC));
vm_stack_drop(state, 2);
object_drop(&numA);
object_drop(&numC);
}

4
lang/number.c
View file

@ -46,8 +46,8 @@ static void number_add(
struct number *numB = (struct number *)arg1;
int added = numA->value + numB->value;
vm_stack_set(state, 0, number_create(added));
vm_stack_drop(state, 1);
object_drop(&arg1);
numB = NULL;
}
static void number_minus(
@ -61,8 +61,8 @@ static void number_minus(
struct number *numB = (struct number *)arg1;
int subbed = numA->value - numB->value;
vm_stack_set(state, 0, number_create(subbed));
vm_stack_drop(state, 1);
object_drop(&arg1);
numB = NULL;
}
static struct object_call calls[] = {{.name = "Add", .handler = number_add},