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Change names of qpdf_object_type_e enumerations

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They have to be ot_* rather than qpdf_ot_* for compatibility.

* Different enumerated types are not assignment-compatible in C++, at
  least with strict compiler settings
* While you can do `constexpr ot_xyz = ::qpdf_ot_xyz` in QPDFObject.hh to
  make QPDFObject::ot_xyz work, QPDFObject::object_type_e::ot_xyz will
  only work if the enumerated type names are the same.
This commit is contained in:
Jay Berkenbilt 2021-12-20 14:41:44 -05:00
parent cf7b2b5700
commit d866f48081
4 changed files with 44 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
include/qpdf/Constants.h
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@ -47,25 +47,29 @@ enum qpdf_error_code_e
* qpdf_oh, have a unique type code that has one of the values in the
* list below. As new object types are added to qpdf, additional items
* may be added to the list, so code that switches on these values
* should take that into consideration.
* should take that into consideration. (Maintainer note: it would be
* better to call this qpdf_ot_* rather than ot_* to reduce likelihood
* of name collision, but since QPDFObject::object_type_e is an alias
* to this type, changing the names of the values breaks backward
* compatibility.)
*/
enum qpdf_object_type_e {
/* Object types internal to qpdf */
qpdf_ot_uninitialized,
qpdf_ot_reserved,
ot_uninitialized,
ot_reserved,
/* Object types that can occur in the main document */
qpdf_ot_null,
qpdf_ot_boolean,
qpdf_ot_integer,
qpdf_ot_real,
qpdf_ot_string,
qpdf_ot_name,
qpdf_ot_array,
qpdf_ot_dictionary,
qpdf_ot_stream,
ot_null,
ot_boolean,
ot_integer,
ot_real,
ot_string,
ot_name,
ot_array,
ot_dictionary,
ot_stream,
/* Additional object types that can occur in content streams */
qpdf_ot_operator,
qpdf_ot_inlineimage,
ot_operator,
ot_inlineimage,
/* NOTE: if adding to this list, update QPDFObject.hh */
};

26
include/qpdf/QPDFObject.hh
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@ -48,19 +48,19 @@ class QPDF_DLL_CLASS QPDFObject
// QPDFObject::object_type_e but was moved to make it accessible
// to the C API. The code below is for backward compatibility.
typedef enum qpdf_object_type_e object_type_e;
static constexpr object_type_e ot_uninitialized = ::qpdf_ot_uninitialized;
static constexpr object_type_e ot_reserved = ::qpdf_ot_reserved;
static constexpr object_type_e ot_null = ::qpdf_ot_null;
static constexpr object_type_e ot_boolean = ::qpdf_ot_boolean;
static constexpr object_type_e ot_integer = ::qpdf_ot_integer;
static constexpr object_type_e ot_real = ::qpdf_ot_real;
static constexpr object_type_e ot_string = ::qpdf_ot_string;
static constexpr object_type_e ot_name = ::qpdf_ot_name;
static constexpr object_type_e ot_array = ::qpdf_ot_array;
static constexpr object_type_e ot_dictionary = ::qpdf_ot_dictionary;
static constexpr object_type_e ot_stream = ::qpdf_ot_stream;
static constexpr object_type_e ot_operator = ::qpdf_ot_operator;
static constexpr object_type_e ot_inlineimage = ::qpdf_ot_inlineimage;
static constexpr object_type_e ot_uninitialized = ::ot_uninitialized;
static constexpr object_type_e ot_reserved = ::ot_reserved;
static constexpr object_type_e ot_null = ::ot_null;
static constexpr object_type_e ot_boolean = ::ot_boolean;
static constexpr object_type_e ot_integer = ::ot_integer;
static constexpr object_type_e ot_real = ::ot_real;
static constexpr object_type_e ot_string = ::ot_string;
static constexpr object_type_e ot_name = ::ot_name;
static constexpr object_type_e ot_array = ::ot_array;
static constexpr object_type_e ot_dictionary = ::ot_dictionary;
static constexpr object_type_e ot_stream = ::ot_stream;
static constexpr object_type_e ot_operator = ::ot_operator;
static constexpr object_type_e ot_inlineimage = ::ot_inlineimage;
virtual ~QPDFObject() {}
virtual std::string unparse() = 0;

2
libqpdf/qpdf-c.cc
View File

@ -1151,7 +1151,7 @@ QPDF_BOOL qpdf_oh_is_number(qpdf_data qpdf, qpdf_oh oh)
qpdf_object_type_e qpdf_oh_get_type_code(qpdf_data qpdf, qpdf_oh oh)
{
return do_with_oh<qpdf_object_type_e>(
qpdf, oh, return_T<qpdf_object_type_e>(qpdf_ot_uninitialized),
qpdf, oh, return_T<qpdf_object_type_e>(ot_uninitialized),
[](QPDFObjectHandle& o) {
QTC::TC("qpdf", "qpdf-c called qpdf_oh_get_type_code");
return o.getTypeCode();

24
qpdf/qpdf-ctest.c
View File

@ -537,12 +537,12 @@ static void test24(char const* infile,
/* Go to the first page and look at all the keys */
qpdf_oh pages = qpdf_oh_get_key(qpdf, root, "/Pages");
assert(qpdf_oh_is_dictionary(qpdf, pages));
assert(qpdf_oh_get_type_code(qpdf, pages) == qpdf_ot_dictionary);
assert(qpdf_oh_get_type_code(qpdf, pages) == ot_dictionary);
assert(strcmp(qpdf_oh_get_type_name(qpdf, pages), "dictionary") == 0);
assert(qpdf_oh_is_initialized(qpdf, pages));
qpdf_oh kids = qpdf_oh_get_key(qpdf, pages, "/Kids");
assert(qpdf_oh_is_array(qpdf, kids));
assert(qpdf_oh_get_type_code(qpdf, kids) == qpdf_ot_array);
assert(qpdf_oh_get_type_code(qpdf, kids) == ot_array);
assert(strcmp(qpdf_oh_get_type_name(qpdf, kids), "array") == 0);
assert(qpdf_oh_get_array_n_items(qpdf, kids) == 1);
qpdf_oh page1 = qpdf_oh_get_array_item(qpdf, kids, 0);
@ -555,7 +555,7 @@ static void test24(char const* infile,
/* Inspect the first page */
qpdf_oh type = qpdf_oh_get_key(qpdf, page1, "/Type");
assert(qpdf_oh_is_name(qpdf, type));
assert(qpdf_oh_get_type_code(qpdf, type) == qpdf_ot_name);
assert(qpdf_oh_get_type_code(qpdf, type) == ot_name);
assert(strcmp(qpdf_oh_get_type_name(qpdf, type), "name") == 0);
assert(strcmp(qpdf_oh_get_name(qpdf, type), "/Page") == 0);
qpdf_oh parent = qpdf_oh_get_key(qpdf, page1, "/Parent");
@ -595,14 +595,14 @@ static void test24(char const* infile,
/* Look at page contents to exercise stream functions */
qpdf_oh contents = qpdf_oh_get_key(qpdf, page1, "/Contents");
assert(qpdf_oh_is_stream(qpdf, contents));
assert(qpdf_oh_get_type_code(qpdf, contents) == qpdf_ot_stream);
assert(qpdf_oh_get_type_code(qpdf, contents) == ot_stream);
assert(strcmp(qpdf_oh_get_type_name(qpdf, contents), "stream") == 0);
qpdf_oh contents_dict = qpdf_oh_get_dict(qpdf, contents);
assert(! qpdf_oh_is_scalar(qpdf, contents));
assert(! qpdf_oh_is_scalar(qpdf, contents_dict));
qpdf_oh contents_length = qpdf_oh_get_key(qpdf, contents_dict, "/Length");
assert(qpdf_oh_is_integer(qpdf, contents_length));
assert(qpdf_oh_get_type_code(qpdf, contents_length) == qpdf_ot_integer);
assert(qpdf_oh_get_type_code(qpdf, contents_length) == ot_integer);
assert(strcmp(qpdf_oh_get_type_name(qpdf, contents_length), "integer") == 0);
assert(qpdf_oh_is_scalar(qpdf, contents_length));
assert(qpdf_oh_is_number(qpdf, contents_length));
@ -643,7 +643,7 @@ static void test24(char const* infile,
qpdf_oh_release(qpdf, page1);
contents = qpdf_oh_get_key(qpdf, page1, "/Contents");
assert(qpdf_oh_is_null(qpdf, contents));
assert(qpdf_oh_get_type_code(qpdf, contents) == qpdf_ot_null);
assert(qpdf_oh_get_type_code(qpdf, contents) == ot_null);
assert(strcmp(qpdf_oh_get_type_name(qpdf, contents), "null") == 0);
assert(qpdf_oh_is_array(qpdf, mediabox));
qpdf_oh_release_all(qpdf);
@ -682,18 +682,18 @@ static void test25(char const* infile,
qpdf_oh p_bool = qpdf_oh_get_array_item(qpdf, parsed, 5);
assert(qpdf_oh_is_integer(qpdf, p_int) &&
qpdf_oh_get_int_value_as_int(qpdf, p_int) == 1);
assert(qpdf_oh_get_type_code(qpdf, p_int) == qpdf_ot_integer);
assert(qpdf_oh_get_type_code(qpdf, p_int) == ot_integer);
assert(strcmp(qpdf_oh_get_type_name(qpdf, p_int), "integer") == 0);
assert(qpdf_oh_is_real(qpdf, p_real) &&
(strcmp(qpdf_oh_get_real_value(qpdf, p_real), "2.0") == 0) &&
qpdf_oh_get_numeric_value(qpdf, p_real) == 2.0);
assert(qpdf_oh_get_type_code(qpdf, p_real) == qpdf_ot_real);
assert(qpdf_oh_get_type_code(qpdf, p_real) == ot_real);
assert(strcmp(qpdf_oh_get_type_name(qpdf, p_real), "real") == 0);
assert(qpdf_oh_is_string(qpdf, p_string) &&
(strcmp(qpdf_oh_get_string_value(qpdf, p_string), "3\xf7") == 0) &&
(strcmp(qpdf_oh_get_utf8_value(qpdf, p_string), "3\xc3\xb7") == 0) &&
(strcmp(qpdf_oh_unparse_binary(qpdf, p_string), "<33f7>") == 0));
assert(qpdf_oh_get_type_code(qpdf, p_string) == qpdf_ot_string);
assert(qpdf_oh_get_type_code(qpdf, p_string) == ot_string);
assert(strcmp(qpdf_oh_get_type_name(qpdf, p_string), "string") == 0);
assert(qpdf_oh_is_dictionary(qpdf, p_dict));
qpdf_oh p_five = qpdf_oh_get_key(qpdf, p_dict, "/Four");
@ -701,11 +701,11 @@ static void test25(char const* infile,
assert(qpdf_oh_is_or_has_name(
qpdf, qpdf_oh_get_array_item(qpdf, p_five, 0), "/Five"));
assert(qpdf_oh_is_null(qpdf, p_null));
assert(qpdf_oh_get_type_code(qpdf, p_null) == qpdf_ot_null);
assert(qpdf_oh_get_type_code(qpdf, p_null) == ot_null);
assert(strcmp(qpdf_oh_get_type_name(qpdf, p_null), "null") == 0);
assert(qpdf_oh_is_bool(qpdf, p_bool) &&
(qpdf_oh_get_bool_value(qpdf, p_bool) == QPDF_TRUE));
assert(qpdf_oh_get_type_code(qpdf, p_bool) == qpdf_ot_boolean);
assert(qpdf_oh_get_type_code(qpdf, p_bool) == ot_boolean);
assert(strcmp(qpdf_oh_get_type_name(qpdf, p_bool), "boolean") == 0);
qpdf_oh_erase_item(qpdf, parsed, 4);
qpdf_oh_insert_item(
@ -763,7 +763,7 @@ static void test26(char const* infile,
qpdf_data qpdf2 = qpdf_init();
qpdf_oh trailer = qpdf_get_trailer(qpdf2);
assert(! qpdf_oh_is_initialized(qpdf2, trailer));
assert(qpdf_oh_get_type_code(qpdf, trailer) == qpdf_ot_uninitialized);
assert(qpdf_oh_get_type_code(qpdf, trailer) == ot_uninitialized);
qpdf_cleanup(&qpdf2);
}