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-rw-r--r--compiler.c82
1 files changed, 71 insertions, 11 deletions
diff --git a/compiler.c b/compiler.c
index 156c1f3..9901e2e 100644
--- a/compiler.c
+++ b/compiler.c
@@ -267,6 +267,16 @@ void art_add_art(Artifact *a, Artifact *b) {
}
}
+// Weather the string str is contained in the artifact
+bool art_contains(Artifact *a, char *str) {
+ for (size_t i = 0; i < a->count; i++) {
+ char **cur = vect_get(a, i);
+ if (strcmp(str, *cur) == 0)
+ return true;
+ }
+ return false;
+}
+
// Frees all strings in the artifact,
// then calls vect_end
void art_end(Artifact *art) {
@@ -2636,6 +2646,25 @@ int tnsl_find_closing(Vector *tokens, size_t cur) {
return -1;
}
+Vector tnsl_find_all_pointers(Vector *tokens, size_t start, size_t end) {
+ Vector out = vect_init(sizeof(char*));
+
+ for(start++;start < end; start++) {
+ Token *cur = vect_get(tokens, start);
+ if (tok_str_eq(cur, "~")) {
+ start++;
+ cur = vect_get(tokens, start);
+ if(cur->type == TT_DEFWORD) {
+ Vector data = vect_from_string(cur->data);
+ char *str = vect_as_string(&data);
+ vect_push(&out, &str);
+ }
+ }
+ }
+
+ return out;
+}
+
char tnsl_unquote_char(char *str) {
if(str == NULL)
return 0;
@@ -3696,6 +3725,23 @@ Variable scope_mk_tmp(Scope *s, CompData *data, Variable *v) {
return var_copy(&out);
}
+// Create a new variable on the stack
+// MAKE SURE ALL TMP STACK IS FREED BEFORE THIS IS DONE
+Variable scope_mk_stack(Scope *s, CompData *data, Variable *v) {
+ Variable out = var_copy(v);
+ int loc = _scope_next_stack_loc(s, _var_pure_size(v));
+
+ out.location = LOC_STCK;
+ out.offset = loc;
+
+ vect_push_string(&data->text, "\tlea rsp, [rbp - ");
+ vect_push_free_string(&data->text, int_to_str(-loc));
+ vect_push_string(&data->text, "]; Stack variable\n");
+
+ vect_push(&s->stack_vars, &out);
+ return var_copy(&out);
+}
+
// Checks if a variable is a tmp variable in the scope
bool scope_is_tmp(Variable *v) {
return strcmp(v->name, "#tmp") == 0;
@@ -4444,14 +4490,15 @@ Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t en
if (op_pos == start) {
if (op_token->data[0] == '~') {
- if (rhs.location > 0 && rhs.ptr_chain.count < 1) {
- // Move to stack
- }
Variable store;
var_op_reference(data, &store, &rhs);
var_end(&rhs);
rhs = scope_mk_tmp(s, data, &store);
var_end(&store);
+
+ int *ptype = vect_get(&rhs.ptr_chain, rhs.ptr_chain.count - 1);
+ *ptype = PTYPE_PTR;
+
return rhs;
} else {
printf("ERROR: Unexpected prefix token\n");
@@ -4908,7 +4955,7 @@ void p2_compile_fdef(Module *root, CompData *out, Vector *tokens, size_t *pos) {
}
// Compiles a variable definition inside a function block
-void p2_compile_def(Scope *s, CompData *out, Vector *tokens, size_t *pos) {
+void p2_compile_def(Scope *s, CompData *out, Vector *tokens, size_t *pos, Vector *p_list) {
Variable type = tnsl_parse_type(tokens, *pos);
*pos = type.location;
@@ -4932,7 +4979,12 @@ void p2_compile_def(Scope *s, CompData *out, Vector *tokens, size_t *pos) {
free(type.name);
Vector nm = vect_from_string(t->data);
type.name = vect_as_string(&nm);
- Variable tmp = scope_mk_var(s, out, &type);
+ Variable tmp;
+ if (_var_ptr_type(&type) != PTYPE_REF && art_contains(p_list, type.name)) {
+ tmp = scope_mk_stack(s, out, &type);
+ } else {
+ tmp = scope_mk_var(s, out, &type);
+ }
var_end(&tmp);
} else if (t->type == TT_DELIMIT) {
*pos = tnsl_find_closing(tokens, *pos);
@@ -4968,7 +5020,7 @@ void p2_compile_enum(Module *root, CompData *out, Vector *tokens, size_t *pos) {
}
// TODO loop blocks, if blocks, else blocks
-void p2_compile_control(Scope *s, CompData *out, Vector *tokens, size_t *pos) {
+void p2_compile_control(Scope *s, CompData *out, Vector *tokens, size_t *pos, Vector *p_list) {
int end = tnsl_find_closing(tokens, *pos);
Token *t = vect_get(tokens, *pos);
@@ -5003,7 +5055,7 @@ void _p2_handle_method_scope(Module *root, CompData *out, Scope *fs, Function *f
var_end(&set);
}
-void _p2_func_scope_init(Module *root, CompData *out, Scope *fs, Function *f) {
+void _p2_func_scope_init(Module *root, CompData *out, Scope *fs, Function *f, Vector *p_list) {
// TODO: decide what happens when a function scope is created
// export function if module is exported.
@@ -5033,7 +5085,12 @@ void _p2_func_scope_init(Module *root, CompData *out, Scope *fs, Function *f) {
// Load function parameters into expected registers (we assume the stack frame was set up proprely by caller)
for (size_t i = 0; i < f->inputs.count; i++) {
Variable *input = vect_get(&f->inputs, i);
- Variable set = scope_mk_var(fs, out, input);
+ Variable set;
+ if (_var_ptr_type(input) != PTYPE_REF && art_contains(p_list, input->name)) {
+ set = scope_mk_stack(fs, out, input);
+ } else {
+ set = scope_mk_var(fs, out, input);
+ }
var_op_pure_set(out, &set, input);
var_end(&set);
}
@@ -5065,6 +5122,8 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
return;
}
+ Vector p_list = tnsl_find_all_pointers(tokens, *pos, end);
+
Token *t = vect_get(tokens, *pos);
while (t != NULL && *pos < (size_t)end && t->type != TT_DEFWORD) {
t = vect_get(tokens, ++(*pos));
@@ -5088,7 +5147,7 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
// Scope init
Scope fs = scope_init(t->data, root);
- _p2_func_scope_init(root, out, &fs, f);
+ _p2_func_scope_init(root, out, &fs, f, &p_list);
if(root->name != NULL && strlen(root->name) > 0 && root->name[0] == '@') {
_p2_handle_method_scope(root, out, &fs, f);
}
@@ -5109,7 +5168,7 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
size_t b_open = *pos;
if(tnsl_block_type(tokens, *pos) == BT_CONTROL) {
- p2_compile_control(&fs, out, tokens, pos);
+ p2_compile_control(&fs, out, tokens, pos, &p_list);
} else {
printf("ERROR: Only control blocks (if, else, loop, switch) are valid inside functions (%d:%d)\n\n", t->line, t->col);
p2_error = true;
@@ -5154,7 +5213,7 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
}
}
} else if (tnsl_is_def(tokens, *pos)) {
- p2_compile_def(&fs, out, tokens, pos);
+ p2_compile_def(&fs, out, tokens, pos, &p_list);
} else {
// TODO: figure out eval parameter needs (maybe needs start and end size_t?)
// and how eval will play into top level defs (if at all)
@@ -5170,6 +5229,7 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
_p2_func_scope_end(out, &fs);
scope_end(&fs);
+ art_end(&p_list);
*pos = end;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 08:46:07 +0000