Initial revision

Objects/funcobject.c

@@ -0,0 +1,101 @@
+/* Function object implementation */
+
+#include <stdio.h>
+
+#include "PROTO.h"
+#include "object.h"
+#include "node.h"
+#include "stringobject.h"
+#include "funcobject.h"
+#include "objimpl.h"
+#include "token.h"
+
+typedef struct {
+	OB_HEAD
+	node *func_node;
+	object *func_globals;
+} funcobject;
+
+object *
+newfuncobject(n, globals)
+	node *n;
+	object *globals;
+{
+	funcobject *op = NEWOBJ(funcobject, &Functype);
+	if (op != NULL) {
+		op->func_node = n;
+		if (globals != NULL)
+			INCREF(globals);
+		op->func_globals = globals;
+	}
+	return (object *)op;
+}
+
+node *
+getfuncnode(op)
+	object *op;
+{
+	if (!is_funcobject(op)) {
+		errno = EBADF;
+		return NULL;
+	}
+	return ((funcobject *) op) -> func_node;
+}
+
+object *
+getfuncglobals(op)
+	object *op;
+{
+	if (!is_funcobject(op)) {
+		errno = EBADF;
+		return NULL;
+	}
+	return ((funcobject *) op) -> func_globals;
+}
+
+/* Methods */
+
+static void
+funcdealloc(op)
+	funcobject *op;
+{
+	/* XXX free node? */
+	DECREF(op->func_globals);
+	free((char *)op);
+}
+
+static void
+funcprint(op, fp, flags)
+	funcobject *op;
+	FILE *fp;
+	int flags;
+{
+	node *n = op->func_node;
+	n = CHILD(n, 1);
+	fprintf(fp, "<user function %s>", STR(n));
+}
+
+static object *
+funcrepr(op)
+	funcobject *op;
+{
+	char buf[100];
+	node *n = op->func_node;
+	n = CHILD(n, 1);
+	sprintf(buf, "<user function %.80s>", STR(n));
+	return newstringobject(buf);
+}
+
+typeobject Functype = {
+	OB_HEAD_INIT(&Typetype)
+	0,
+	"function",
+	sizeof(funcobject),
+	0,
+	funcdealloc,	/*tp_dealloc*/
+	funcprint,	/*tp_print*/
+	0,		/*tp_getattr*/
+	0,		/*tp_setattr*/
+	0,		/*tp_compare*/
+	funcrepr,	/*tp_repr*/
+};