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Some echo()/print() fixes. (0.37.12)

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This commit is contained in:
Johannes Findeisen 2025-12-13 02:24:23 +01:00
commit b16a42a4a7
6 changed files with 36 additions and 6 deletions
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16
src/vm/echo.c
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@ -1,12 +1,22 @@
/**
* Implements OP_ECHO: print top-of-stack value without trailing newline.
* Does not store into VM output buffer; writes directly to stdout and flushes.
* Now stores the value into the VM's output buffer and marks it as partial,
* so the CLI can render echo output together with following print output.
*/
case OP_ECHO: {
Value v = pop_value(vm);
print_value(&v);
fflush(stdout);
Value snap = deep_copy_value(&v);
free_value(v);
if (vm->output_count < OUTPUT_SIZE) {
int idx = vm->output_count;
vm->output[idx] = snap;
vm->output_is_partial[idx] = 1; // ECHO does not end the line
vm->output_count++;
} else {
free_value(snap);
fprintf(stderr, "Runtime error: output buffer overflow\n");
exit(1);
}
break;
}

5
src/vm/print.c
View file

@ -32,7 +32,10 @@ case OP_PRINT: {
Value snap = deep_copy_value(&v);
free_value(v);
if (vm->output_count < OUTPUT_SIZE) {
vm->output[vm->output_count++] = snap;
int idx = vm->output_count;
vm->output[idx] = snap;
vm->output_is_partial[idx] = 0; // PRINT terminates the line
vm->output_count++;
} else {
free_value(snap);
fprintf(stderr, "Runtime error: output buffer overflow\n");