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fix the reader for patterns in a def rule

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This commit is contained in:
krangelov
2019-02-14 15:32:12 +01:00
parent e05c79a751
commit 8a5e7fa25d
1 changed files with 13 additions and 9 deletions
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22
src/runtime/c/pgf/reader.c
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@@ -328,16 +328,20 @@ pgf_read_patt(PgfReader* rdr)
uint8_t tag = pgf_read_tag(rdr);
switch (tag) {
case PGF_PATT_APP: {
PgfCId ctor = pgf_read_cid(rdr, rdr->opool);
gu_return_on_exn(rdr->err, gu_null_variant);
size_t n_args = pgf_read_len(rdr);
gu_return_on_exn(rdr->err, gu_null_variant);
PgfPattApp *papp =
gu_new_variant(PGF_PATT_APP,
PgfPattApp,
&patt, rdr->opool);
papp->ctor = pgf_read_cid(rdr, rdr->opool);
gu_return_on_exn(rdr->err, gu_null_variant);
papp->n_args = pgf_read_len(rdr);
gu_return_on_exn(rdr->err, gu_null_variant);
gu_new_flex_variant(PGF_PATT_APP,
PgfPattApp,
args, n_args,
&patt, rdr->opool);
papp->ctor = ctor;
papp->n_args = n_args;
for (size_t i = 0; i < papp->n_args; i++) {
papp->args[i] = pgf_read_patt(rdr);
gu_return_on_exn(rdr->err, gu_null_variant);