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author | Björn Gustavsson <[email protected]> | 2019-06-03 11:28:59 +0200 |
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committer | GitHub <[email protected]> | 2019-06-03 11:28:59 +0200 |
commit | fbee646c4ff63327512f25eb07be0ede66e55599 (patch) | |
tree | 2e077ed99baf611adf6d52c6a6b1d0aab26356ce /lib/erl_interface/src | |
parent | 6e3ce6cac718ff0eae1349eb0b4ab8513abba343 (diff) | |
parent | 5fef9df3faf0504c5c281a5720b992c19c94a6c2 (diff) | |
download | otp-fbee646c4ff63327512f25eb07be0ede66e55599.tar.gz otp-fbee646c4ff63327512f25eb07be0ede66e55599.tar.bz2 otp-fbee646c4ff63327512f25eb07be0ede66e55599.zip |
Merge pull request #2246 from bjorng/bjorn/erl_interface/term-printing/OTP-15814
Support printing of maps and funs in ei_print_term()
Diffstat (limited to 'lib/erl_interface/src')
-rw-r--r-- | lib/erl_interface/src/decode/decode_fun.c | 13 | ||||
-rw-r--r-- | lib/erl_interface/src/decode/decode_skip.c | 1 | ||||
-rw-r--r-- | lib/erl_interface/src/misc/ei_printterm.c | 37 |
3 files changed, 46 insertions, 5 deletions
diff --git a/lib/erl_interface/src/decode/decode_fun.c b/lib/erl_interface/src/decode/decode_fun.c index 3a7a2b01c1..db71007505 100644 --- a/lib/erl_interface/src/decode/decode_fun.c +++ b/lib/erl_interface/src/decode/decode_fun.c @@ -77,10 +77,12 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) } if (p != NULL) { p->u.closure.n_free_vars = n; - p->u.closure.free_var_len = ix - ix0; - p->u.closure.free_vars = ei_malloc(ix - ix0); - if (!(p->u.closure.free_vars)) return -1; - memcpy(p->u.closure.free_vars, s + ix0, ix - ix0); + p->u.closure.free_var_len = ix - ix0; + if (p->u.closure.free_var_len > 0) { + p->u.closure.free_vars = ei_malloc(p->u.closure.free_var_len); + if (!(p->u.closure.free_vars)) return -1; + memcpy(p->u.closure.free_vars, s + ix0, p->u.closure.free_var_len); + } } s += ix; *index += s-s0; @@ -146,6 +148,7 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) else { p_arity = NULL; } + ix = 0; if (ei_decode_atom_as(s, &ix, p_module, MAXATOMLEN_UTF8, ERLANG_UTF8, NULL, NULL) < 0) return -1; @@ -171,6 +174,8 @@ int ei_decode_fun(const char *buf, int *index, erlang_fun *p) } if (ei_decode_long(s, &ix, p_arity) < 0) return -1; + s += ix; + *index += s - s0; return 0; } default: diff --git a/lib/erl_interface/src/decode/decode_skip.c b/lib/erl_interface/src/decode/decode_skip.c index 736c00e074..0622ce7d59 100644 --- a/lib/erl_interface/src/decode/decode_skip.c +++ b/lib/erl_interface/src/decode/decode_skip.c @@ -97,6 +97,7 @@ int ei_skip_term(const char* buf, int* index) break; case ERL_FUN_EXT: case ERL_NEW_FUN_EXT: + case ERL_EXPORT_EXT: if (ei_decode_fun(buf, index, NULL) < 0) return -1; break; default: diff --git a/lib/erl_interface/src/misc/ei_printterm.c b/lib/erl_interface/src/misc/ei_printterm.c index 5c40fb7747..a94d6e2ad8 100644 --- a/lib/erl_interface/src/misc/ei_printterm.c +++ b/lib/erl_interface/src/misc/ei_printterm.c @@ -121,6 +121,7 @@ static int print_term(FILE* fp, ei_x_buff* x, erlang_pid pid; erlang_port port; erlang_ref ref; + erlang_fun fun; double d; long l; @@ -306,12 +307,46 @@ static int print_term(FILE* fp, ei_x_buff* x, } break; - case ERL_FLOAT_EXT: case NEW_FLOAT_EXT: if (ei_decode_double(buf, index, &d) < 0) goto err; ch_written += xprintf(fp, x, "%f", d); break; + case ERL_MAP_EXT: + if (ei_decode_map_header(buf, &tindex, &n) < 0) goto err; + ch_written += xprintf(fp, x, "#{"); + for (i = 0; i < n; ++i) { + r = print_term(fp, x, buf, &tindex); + if (r < 0) goto err; + ch_written += r; + ch_written += xprintf(fp, x, " => "); + r = print_term(fp, x, buf, &tindex); + if (r < 0) goto err; + ch_written += r; + if (i < n-1) { + xputs(", ", fp, x); ch_written += 2; + } + } + *index = tindex; + xputc('}', fp, x); ch_written++; + break; + case ERL_FUN_EXT: + case ERL_NEW_FUN_EXT: + case ERL_EXPORT_EXT: + if (ei_decode_fun(buf, &tindex, &fun) < 0) goto err; + if (fun.type == EI_FUN_EXPORT) { + ch_written += xprintf(fp, x, "fun %s:%s/%ld", + fun.module, + fun.u.exprt.func, + fun.arity); + } else { + ch_written += xprintf(fp, x, "#Fun{%s.%ld.%lu}", + fun.module, + fun.u.closure.index, + fun.u.closure.uniq); + } + *index = tindex; + break; default: goto err; } |