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#include "upb_decoder.h"
#include "upb_textprinter.h"
#include "upb_stdio.h"
#include "upb_glue.h"
int main(int argc, char *argv[]) {
if (argc < 3) {
fprintf(stderr, "Usage: test_decoder <descfile> <msgname>\n");
return 1;
}
upb_symtab *symtab = upb_symtab_new();
upb_string *desc = upb_strreadfile(argv[1]);
if (!desc) {
fprintf(stderr, "Couldn't open descriptor file: %s\n", argv[1]);
return 1;
}
upb_status status = UPB_STATUS_INIT;
upb_read_descriptor(symtab, desc, &status);
if (!upb_ok(&status)) {
fprintf(stderr, "Error parsing descriptor: ");
upb_printerr(&status);
return 1;
}
upb_string_unref(desc);
upb_string *name = upb_strdupc(argv[2]);
upb_def *md = upb_symtab_lookup(symtab, name);
upb_string_unref(name);
if (!md) {
fprintf(stderr, "Descriptor did not contain message: %s\n", argv[2]);
return 1;
}
upb_msgdef *m = upb_dyncast_msgdef(md);
if (!m) {
fprintf(stderr, "Def was not a msgdef.\n");
return 1;
}
upb_stdio *in = upb_stdio_new();
upb_stdio_reset(in, stdin);
upb_stdio *out = upb_stdio_new();
upb_stdio_reset(out, stdout);
upb_handlers *handlers = upb_handlers_new();
upb_textprinter *p = upb_textprinter_new();
upb_textprinter_reset(p, upb_stdio_bytesink(out), false);
upb_textprinter_reghandlers(handlers, m);
upb_decoder d;
upb_decoder_initforhandlers(&d, handlers);
upb_decoder_reset(&d, upb_stdio_bytesrc(in), p);
upb_clearerr(&status);
upb_decoder_decode(&d, &status);
if (!upb_ok(&status)) {
fprintf(stderr, "Error parsing input: ");
upb_printerr(&status);
}
upb_status_uninit(&status);
upb_stdio_free(in);
upb_stdio_free(out);
upb_decoder_uninit(&d);
upb_textprinter_free(p);
upb_def_unref(UPB_UPCAST(m));
upb_symtab_unref(symtab);
// Prevent C library from holding buffers open, so Valgrind doesn't see
// memory leaks.
fclose(stdin);
fclose(stdout);
}
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