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Nim/tests
ringabout e9a0c9634e fixes #25784; Object default field initialized with an object constructor (#25785)
fixes #25784

This pull request addresses the handling of forward object types during
type determination in the Nim compiler and adds new test cases to ensure
correct default value initialization for objects with forward
references. The main focus is to allow forward object types to remain
unresolved during the initial type analysis, deferring their resolution
to a later compilation phase. This helps support object constructors
with default values involving forward types.

**Compiler improvements:**

* Updated `semObjConstr` in `compiler/semobjconstr.nim` to allow forward
object types (`tyForward`) to remain unresolved during determine-type
analysis. This avoids premature errors and ensures that such types are
resolved later, supporting delayed field-default resolution.

**Testing enhancements:**

* Added new test cases in `tests/objects/mobject_default_value.nim` to
verify that objects with default fields referencing forward types are
correctly initialized, and that their default values are properly set.

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Co-authored-by: Copilot <copilot@github.com>
2026-05-05 21:05:17 +02:00
..
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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.