stop copying whole fn body unless necessary when generating an instance

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/std/io.toc b/tests/std/io.toc
new file mode 100644
index 0000000..2c82dc9
--- /dev/null
+++ b/tests/std/io.toc
@@ -0,0 +1,43 @@
+putchar ::= #foreign("putchar", "libc.so.6") fn(#C int) #C int;
+toc_putchar ::= fn(x: char) {
+	putchar(x as #C int);
+}
+printf ::= #foreign("printf", "libc.so.6") fn(#C &"char const", #C ..) #C int; 
+
+writes ::= fn(x: []char) {
+	printf_strfmt := "%s\0";
+	printf(&printf_strfmt[0], &x[0]);
+}
+
+puts ::= fn(x: []char) {
+	writes(x);
+	toc_putchar('\n');
+}
+
+writei ::= fn(x: int) {
+	if x < 0 {
+	   toc_putchar('-');
+	   // NOTE: don't do x = -x; here to make sure I64_MIN works
+	}
+	if x == 0 {
+		toc_putchar('0');
+	} else {
+		abs ::= fn(x: int) int { if x < 0 { -x } else { x } };
+		scan_digit := 1000000000000000000;
+		started := false;
+		while scan_digit > 0 {
+			digit := abs((x / scan_digit) % 10);
+			if digit > 0 { started = true; }
+			if started {
+			   toc_putchar((('0' as int) + digit) as char);
+			}
+			scan_digit /= 10;
+		}
+	}
+}
+
+puti ::= fn(x: int) {
+	writei(x);
+	toc_putchar('\n');
+}
+