[C++] Object API: document custom string type requirements,

implement better custom string type constructor alternative
for Unpack() and fix bug with vector of custom string types
in Pack().

Squashed commit of the following:

commit e9519c647e
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Tue Mar 5 18:24:49 2019 +0100

    tests: regenerate code, reverts change to CreateVectorOfStrings().

commit 117e3b0679
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Tue Mar 5 18:15:05 2019 +0100

    idl_gen_cpp.cpp: move clang-format on/off outside of declaration, so they are kept properly aligned automatically.

commit 4791923806
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Tue Mar 5 18:11:40 2019 +0100

    idl_gen_cpp.cpp: full clang-format run with provided Google format file, enforce 80 lines width.

commit 2f0402f9ff
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Tue Mar 5 18:09:32 2019 +0100

    CppUsage: address requested changes.
    idl_gen_cpp.cpp: fix formatting, keep CreateVectorOfStrings for normal string cases.

commit 371d4e0b79
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Fri Mar 1 16:35:29 2019 +0100

    Fix compile error with a vector of non-std::strings. CreateVectorOfStrings() expects a vector of std::string types, but that's not always the case.

commit 92b90d7f0f
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Fri Mar 1 16:15:36 2019 +0100

    Document requirement for custom string types to implement empty() and be constructible from std::string.
    Add new option --cpp-str-flex-ctor to construct custom string types not via std::string, but (char * + length).

commit 28cb2e92d5
Author: Luca Longinotti <luca.longinotti@inivation.com>
Date:   Fri Mar 1 14:31:17 2019 +0100

    idl_gen_cpp.cpp: clang-format run, to better separate changes in content from formatting.

Change-Id: I4887ba2f2c632b9e7a8c938659b088cd95690870
This commit is contained in:
Wouter van Oortmerssen
2019-03-11 09:42:02 -07:00
parent 3968d00568
commit eb2a81f73d
5 changed files with 254 additions and 174 deletions

View File

@@ -410,6 +410,7 @@ struct IDLOptions {
bool gen_compare;
std::string cpp_object_api_pointer_type;
std::string cpp_object_api_string_type;
bool cpp_object_api_string_flexible_constructor;
bool gen_nullable;
bool gen_generated;
std::string object_prefix;
@@ -486,6 +487,7 @@ struct IDLOptions {
generate_object_based_api(false),
gen_compare(false),
cpp_object_api_pointer_type("std::unique_ptr"),
cpp_object_api_string_flexible_constructor(false),
gen_nullable(false),
gen_generated(false),
object_suffix("T"),
@@ -627,6 +629,7 @@ class Parser : public ParserState {
known_attributes_["cpp_ptr_type"] = true;
known_attributes_["cpp_ptr_type_get"] = true;
known_attributes_["cpp_str_type"] = true;
known_attributes_["cpp_str_flex_ctor"] = true;
known_attributes_["native_inline"] = true;
known_attributes_["native_custom_alloc"] = true;
known_attributes_["native_type"] = true;