mirror of
https://github.com/nim-lang/Nim.git
synced 2026-08-04 22:48:38 +00:00
d77f5bcd0f
fixes #25803 This pull request introduces a new approach for generating C++ constructor expressions in the Nim compiler's C++ backend, ensuring that type-prefixed construction is used when needed (such as in assignments), rather than just braced initializer lists. It also adds a new test case (with corresponding C++ header) to verify correct behavior when assigning to types with overloaded assignment operators and constructors. **C++ code generation improvements:** * Added `genCppConstructorExpr` in `ccgtypes.nim`, which generates a full type-prefixed constructor expression (e.g., `Foo(a, b)`) for C++ code generation, as opposed to just a braced initializer list. This is important for contexts like assignments where the type must be explicit. * Updated `resetLoc` in `cgen.nim` to use `genCppConstructorExpr` instead of `genCppInitializer` when initializing imported C++ types, ensuring correct code generation for assignments. **Testing:** * Added a new C++ header file, `tcpp_default_ctor_assignment.h`, defining a struct `AmbiguousAssign` with overloaded assignment operators and constructors to test ambiguous assignment scenarios. * Added a corresponding Nim test, `tcpp_default_ctor_assignment.nim`, which exercises construction and assignment for the imported C++ type, ensuring the new code generation logic works as intended.
This directory contains the test cases.
Each test must have a filename of the form: t*.nim
Note: Testament is only aware of tests under a directory (eg tests/foo/) and will ignore
top-level tests like tests/tbar.nim.
Specs
Each test can contain a spec in a discard """ ... """ block.
Check out the parseSpec procedure in the specs module for a full and reliable reference
action
Specifies what action this test should take.
Default: run
Options:
compile- compiles the module and fails the test if compilations fails.run- compiles and runs the module, fails the test if compilation or execution of test code fails.reject- compiles the module and fails the test if compilation succeeds.
There are certain spec keys that imply run, including output and
outputsub.
Categories
Each folder under this directory represents a test category, which can be
tested by running koch tests pcat <category> (or cat to avoid parallel
testing, which is slower).
The folder dll contains simple DLL tests.
The folder realtimeGC contains a test for validating that the realtime GC
can run properly without linking against the nimrtl.dll/so.