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authorKyle Gunger <kgunger12@gmail.com>2024-02-22 01:57:24 -0500
committerKyle Gunger <kgunger12@gmail.com>2024-02-22 01:57:24 -0500
commitd1ff59dce669fc69c5640647a915e00e443aff20 (patch)
treea5cda8ef27b4cda409311e96599835a2aeea9560
parentbd67baa5e2b9281ffc2b57be5fbd6d9514799994 (diff)
Idea of how eval will work
-rw-r--r--compiler.c43
1 files changed, 29 insertions, 14 deletions
diff --git a/compiler.c b/compiler.c
index 682084e..75f2504 100644
--- a/compiler.c
+++ b/compiler.c
@@ -3678,7 +3678,7 @@ Variable _eval_literal(Scope *s, CompData *data, Vector *tokens, size_t literal)
}
// Main implementation, recursive
-Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t end, Variable *tmp) {
+Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t end) {
Variable out;
out.name = NULL;
@@ -3714,7 +3714,12 @@ Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t en
// Found first delim and lowest priority op
// Handle delim
- if (delim > -1 && op < 2){
+ if (op < 2){
+ if (delim == -1) {
+ return _eval_dot(s, data, tokens, start, end);
+ }
+
+ // Handle delim
Token *d = vect_get(tokens, delim);
int dcl = tnsl_find_closing(tokens, delim);
switch (d->data[0]){
@@ -3726,7 +3731,7 @@ Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t en
printf("Unexpected token after parenthesis \"%s\" (%d:%d)\n\n", d->data, d->line, d->col);
return out;
} else {
- return _eval(s, data, tokens, start + 1, end - 1, tmp);
+ return _eval(s, data, tokens, start + 1, end - 1);
}
case '[':
printf("Explicit type casts are not yet supported, sorry (%d:%d)\n\n", d->line, d->col);
@@ -3752,38 +3757,48 @@ Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t en
// Based on op_token, split the two halves and recurse.
// TODO
- Variable a = _eval(s, data, tokens, start, op_pos, tmp);
- Variable b = _eval(s, data, tokens, op_pos + 1, end, tmp);
+ Variable rhs = _eval(s, data, tokens, op_pos + 1, end);
+ out = _eval(s, data, tokens, start, op_pos);
+ if (op != 10 && !scope_is_tmp(&out)) {
+ out = scope_mk_tmp(&out);
+ }
if (strlen(op_token->data) == 1) {
switch(op_token->data[0]) {
case '+':
- var_op_add(data, &a, &b);
+ var_op_add(data, &out, &rhs);
break;
case '-':
- var_op_sub(data, &a, &b);
+ var_op_sub(data, &out, &rhs);
break;
case '*':
- var_op_mul(data, &a, &b);
+ var_op_mul(data, &out, &rhs);
break;
case '/':
- var_op_div(data, &a, &b);
+ var_op_div(data, &out, &rhs);
break;
case '%':
- var_op_mod(data, &a, &b);
+ var_op_mod(data, &out, &rhs);
break;
case '|':
- var_op_or(data, &a, &b);
+ var_op_or(data, &out, &rhs);
break;
case '&':
- var_op_and(data, &a, &b);
+ var_op_and(data, &out, &rhs);
break;
case '^':
- var_op_xor(data, &a, &b);
+ var_op_xor(data, &out, &rhs);
+ break;
+ case '=':
+ var_op_set(data, &out, &rhs);
break;
}
}
+ if (scope_is_tmp(&rhs)) {
+ scope_free_tmp(&rhs);
+ }
+
return out;
}
@@ -3807,7 +3822,7 @@ Variable eval(Scope *s, CompData *out, Vector *tokens, size_t *pos, bool keep) {
}
}
- store = _eval(s, out, tokens, start, end, NULL);
+ store = _eval(s, out, tokens, start, end);
if (keep) {
if(store.location == LOC_STCK || store.location == LOC_DATA) {