12345qiupeng
/
gtsam
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

graceful dynamic cast failures

release/4.3a0
Duy-Nguyen Ta 2017-03-21 02:34:04 -04:00
parent b8d3292da3
commit 869dc811b0
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
wrap/Class.cpp
View File

@ -798,10 +798,13 @@ void Class::pyxDynamicCast(FileWriter& pyxFile, const Class& curLevel,
parentCythonClass = curLevel.parentClass->pxd_class_in_pyx();
pyxFile.oss << "def dynamic_cast_" << me << "_" << parent << "(" << parent
<< " parent):\n";
pyxFile.oss << " return " << me << ".cyCreateFromShared(<" << sharedMe
pyxFile.oss << " try:\n";
pyxFile.oss << " return " << me << ".cyCreateFromShared(<" << sharedMe
<< ">dynamic_pointer_cast[" << pxd_class_in_pyx() << ","
<< parentCythonClass << "](parent." << parentObj
<< "))\n";
pyxFile.oss << " except:\n";
pyxFile.oss << " raise TypeError('dynamic cast failed!')\n";
// Move up higher to one level: Find the parent class with name "parentClass"
auto parent_it = find_if(allClasses.begin(), allClasses.end(),
[&curLevel](const Class& cls) {
@ -850,6 +853,8 @@ void Class::emit_cython_pyx(FileWriter& pyxFile, const std::vector<Class>& allCl
pyxFile.oss << " @staticmethod\n";
pyxFile.oss << " cdef " << pyxClassName() << " cyCreateFromShared(const "
<< shared_pxd_class_in_pyx() << "& other):\n"
<< " if other.get() == NULL:\n"
<< " raise RuntimeError('Cannot create object from a nullptr!')\n"
<< " cdef " << pyxClassName() << " ret = " << pyxClassName() << "(cyCreateFromShared=True)\n"
<< " ret." << shared_pxd_obj_in_pyx() << " = other\n";
pyxInitParentObj(pyxFile, " ret", "other", allClasses);