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-rw-r--r--com.c43
1 files changed, 26 insertions, 17 deletions
diff --git a/com.c b/com.c
index 92f0d80..5a98ef1 100644
--- a/com.c
+++ b/com.c
@@ -36,7 +36,6 @@ Compiler compiler_new(Compiler *outer, Chunk *ch) {
size_t chunk_wbc(Compiler *C, uint8_t byte) {
- printf("\t%p %hd\n",C, byte);
Chunk *ch = C->ch;
if (ch->bc.len == ch->bc.cap) {
size_t newsz = (ch->bc.cap == 0 ? 8 : ch->bc.cap * 2);
@@ -168,7 +167,7 @@ void fn_form(Compiler *C, AstVec l, Op op) {
AstVec arglist = l.vals[1].as.list;
ObjFunc *func = objfunc_new(C->S);
- Compiler subcompiler = compiler_new(C, &func->chunk);
+ Compiler subcompiler = compiler_new(C, &func->ch);
for (int i = 2; i < l.len - 1; i++) {
compile_node(&subcompiler, l.vals[i]);
@@ -219,16 +218,15 @@ static void compile_node(Compiler *C, AstNode a) {
switch (a.ty) {
case AST_IDENT:;
char *ident = a.as.str;
- BuiltinIdent *found_builtin = NULL;
+ bool found_builtin = false;
for (BuiltinIdent *b = builtin_idents; b->name != NULL; b++) {
if (0 == strcmp(b->name, ident)) {
- found_builtin = b;
+ chunk_wbc(C, b->op);
+ found_builtin = true;
break;
}
}
- if (found_builtin != NULL) {
- chunk_wbc(C, found_builtin->op);
- } else {
+ if (!found_builtin) {
// read global variable
ObjString *o = objstring_copy_cstr(C->S, a.as.str);
chunk_wbc(C, OP_GETGLOBAL);
@@ -250,16 +248,17 @@ static void compile_node(Compiler *C, AstNode a) {
#define CK(cond, msg) if (!(cond)) { fputs(msg "\n", stderr); exit(1); }
CK(l.len > 0, "can't handle empty list");
- CK(l.vals[0].ty == AST_IDENT, "can only call ops");
#undef CK
- char *head = l.vals[0].as.str;
-
BuiltinForm *form = NULL;
- for (BuiltinForm *b = builtin_forms; b->name != NULL; b++) {
- if (0 == strcmp(b->name, head)) {
- form = b;
- break;
+
+ if (l.vals[0].ty == AST_IDENT) {
+ char *head = l.vals[0].as.str;
+ for (BuiltinForm *b = builtin_forms; b->name != NULL; b++) {
+ if (0 == strcmp(b->name, head)) {
+ form = b;
+ break;
+ }
}
}
@@ -276,8 +275,17 @@ static void compile_node(Compiler *C, AstNode a) {
form->action(C, l, form->op);
} else {
- fprintf(stderr, "unknown form %s\n", head);
- exit(1);
+ // function call
+ // (f a b c )
+ if (l.len > 255) {
+ fprintf(stderr, "can't have more than 255 args in a function call\n");
+ exit(1);
+ }
+ for (int i = 0; i < l.len; i++) {
+ compile_node(C, l.vals[i]);
+ }
+ chunk_wbc(C, OP_CALL);
+ chunk_wbc(C, l.len);
}
break;
@@ -291,6 +299,7 @@ int main(int argc, char **argv) {
Chunk ch = chunk_new(S);
S->do_disasm = (argc > 1 && 0 == strcmp(argv[1], "-l"));
+ S->do_trace = false;
char n1[] = "foo";
char n2[] = "bar";
@@ -314,7 +323,7 @@ int main(int argc, char **argv) {
chunk_wbc(C, OP_PUTS);
- chunk_wbc(C, OP_RET);
+ chunk_wbc(C, OP_HALT);
Thread th = thread_new(S);
th.ch = &ch;