py: Add compile option to enable/disable source line numbers.
diff --git a/py/emitbc.c b/py/emitbc.c
index 6d9523f..d74b065 100644
--- a/py/emitbc.c
+++ b/py/emitbc.c
@@ -249,6 +249,7 @@
static void emit_bc_set_source_line(emit_t *emit, int source_line) {
//printf("source: line %d -> %d offset %d -> %d\n", emit->last_source_line, source_line, emit->last_source_line_offset, emit->byte_code_offset);
+#if MICROPY_ENABLE_SOURCE_LINE
if (source_line > emit->last_source_line) {
uint bytes_to_skip = emit->byte_code_offset - emit->last_source_line_offset;
uint lines_to_skip = source_line - emit->last_source_line;
@@ -257,6 +258,7 @@
emit->last_source_line_offset = emit->byte_code_offset;
emit->last_source_line = source_line;
}
+#endif
}
static void emit_bc_load_id(emit_t *emit, qstr qstr) {
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 97e4b13..38b74b7 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -76,6 +76,12 @@
typedef long long mp_longint_impl_t;
#endif
+// Whether to include information in the byte code to determine source
+// line number (increases RAM usage, but doesn't slow byte code execution)
+#ifndef MICROPY_ENABLE_SOURCE_LINE
+#define MICROPY_ENABLE_SOURCE_LINE (0)
+#endif
+
// Whether to support float and complex types
#ifndef MICROPY_ENABLE_FLOAT
#define MICROPY_ENABLE_FLOAT (0)
diff --git a/py/obj.c b/py/obj.c
index 76a4d8f..ce555ef 100644
--- a/py/obj.c
+++ b/py/obj.c
@@ -57,7 +57,11 @@
if (n > 0) {
printf("Traceback (most recent call last):\n");
for (int i = n - 3; i >= 0; i -= 3) {
+#if MICROPY_ENABLE_SOURCE_LINE
printf(" File \"%s\", line %d, in %s\n", qstr_str(values[i]), (int)values[i + 1], qstr_str(values[i + 2]));
+#else
+ printf(" File \"%s\", in %s\n", qstr_str(values[i]), qstr_str(values[i + 2]));
+#endif
}
}
}