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Raising an error when attempting to get-ouput-string from a non-string output-port.

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This commit is contained in:
Alex Shinn 2012-03-19 21:10:18 +09:00
parent 1afb807699
commit c8b93f2c05
2 changed files with 19 additions and 5 deletions
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3
include/chibi/sexp.h
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@ -436,8 +436,9 @@ struct sexp_struct {
#define SEXP_UNDEF SEXP_MAKE_IMMEDIATE(5) /* internal use */
#define SEXP_CLOSE SEXP_MAKE_IMMEDIATE(6) /* internal use */
#define SEXP_RAWDOT SEXP_MAKE_IMMEDIATE(7) /* internal use */
#define SEXP_STRING_OPORT SEXP_MAKE_IMMEDIATE(8) /* internal use */
#if SEXP_USE_OBJECT_BRACE_LITERALS
#define SEXP_CLOSE_BRACE SEXP_MAKE_IMMEDIATE(8) /* internal use */
#define SEXP_CLOSE_BRACE SEXP_MAKE_IMMEDIATE(9) /* internal use */
#endif
#if SEXP_USE_LIMITED_MALLOC

21
sexp.c
View file

@ -1129,6 +1129,8 @@ sexp sexp_make_cpointer (sexp ctx, sexp_uint_t type_id, void *value,
#if SEXP_BSD
#define sexp_streamp(vec) sexp_vectorp(vec)
#define sexp_stream_ctx(vec) sexp_vector_ref((sexp)vec, SEXP_ZERO)
#define sexp_stream_buf(vec) sexp_vector_ref((sexp)vec, SEXP_ONE)
#define sexp_stream_size(vec) sexp_vector_ref((sexp)vec, SEXP_TWO)
@ -1139,7 +1141,7 @@ sexp sexp_make_cpointer (sexp ctx, sexp_uint_t type_id, void *value,
#define sexp_stream_size_set(vec, x) sexp_vector_set((sexp)vec, SEXP_TWO, x)
#define sexp_stream_pos_set(vec, x) sexp_vector_set((sexp)vec, SEXP_THREE, x)
int sstream_read (void *vec, char *dst, int n) {
static int sstream_read (void *vec, char *dst, int n) {
sexp_uint_t len = sexp_unbox_fixnum(sexp_stream_size(vec));
sexp_uint_t pos = sexp_unbox_fixnum(sexp_stream_pos(vec));
if (pos >= len) return 0;
@ -1149,7 +1151,7 @@ int sstream_read (void *vec, char *dst, int n) {
return n;
}
int sstream_write (void *vec, const char *src, int n) {
static int sstream_write (void *vec, const char *src, int n) {
sexp_uint_t len, pos, newpos;
sexp newbuf;
len = sexp_unbox_fixnum(sexp_stream_size(vec));
@ -1170,7 +1172,7 @@ int sstream_write (void *vec, const char *src, int n) {
return n;
}
off_t sstream_seek (void *vec, off_t offset, int whence) {
static off_t sstream_seek (void *vec, off_t offset, int whence) {
sexp_sint_t pos;
if (whence == SEEK_SET) {
pos = offset;
@ -1225,6 +1227,8 @@ sexp sexp_get_output_string_op (sexp ctx, sexp self, sexp_sint_t n, sexp port) {
sexp cookie;
sexp_assert_type(ctx, sexp_oportp, SEXP_OPORT, port);
cookie = sexp_port_cookie(port);
if (!sexp_streamp(cookie))
return sexp_xtype_exception(ctx, self, "not a string port", port);
fflush(sexp_port_stream(port));
return sexp_substring(ctx,
sexp_stream_buf(cookie),
@ -1259,11 +1263,14 @@ sexp sexp_make_output_string_port_op (sexp ctx, sexp self, sexp_sint_t n) {
sexp_port_stream(res)
= open_memstream(&sexp_port_buf(res), &sexp_port_size(res));
sexp_port_binaryp(res) = 0;
sexp_port_cookie(res) = SEXP_STRING_OPORT;
return res;
}
sexp sexp_get_output_string_op (sexp ctx, sexp self, sexp_sint_t n, sexp port) {
sexp_assert_type(ctx, sexp_oportp, SEXP_OPORT, port);
if (sexp_port_cookie(port) != SEXP_STRING_OPORT)
return sexp_xtype_exception(ctx, self, "not an output string port", port);
fflush(sexp_port_stream(port));
return sexp_c_string(ctx, sexp_port_buf(port), sexp_port_size(port));
}
@ -1374,7 +1381,13 @@ sexp sexp_get_output_string_op (sexp ctx, sexp self, sexp_sint_t n, sexp out) {
} else {
ls = sexp_port_cookie(out);
}
res = sexp_string_concatenate(ctx, ls, SEXP_FALSE);
for (tmp = ls; sexp_pairp(tmp); tmp = sexp_cdr(tmp))
if (!sexp_stringp(sexp_car(tmp)))
res = sexp_xtype_exception(ctx, self, "not an output string port", out);
if (!sexp_nullp(tmp))
res = sexp_xtype_exception(ctx, self, "not an output string port", out);
if (!sexp_exceptionp(res))
res = sexp_string_concatenate(ctx, ls, SEXP_FALSE);
sexp_gc_release2(ctx);
return res;
}