Specify type inference for constructor calls - #10312
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Align constructor inference with shared type groups, generalized target-aware inference, and a combined overload candidate set across type arities. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
This was referenced Aug 17, 2026
Point to the independent generalized-inference and type-group proposals, streamline the combined candidate-set rationale, and align standard links with alpha-v12. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Compress the proposal around its literal syntax delta, constructor candidate construction, combined overload set, and owned compatibility questions. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Compress the proposal around constructor-specific syntax, candidate construction, combined overload resolution, compatibility, and unresolved extensions. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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Summary
Champion issue: #9627
Specification
The authoritative draft is MadsTorgersen/csharpstandard#3. It updates
standard/expressions.md, primarily §12.6.3 type inference and §12.8.17.2 object creation expressions.Compatibility and open design
Same-name types can add candidates or introduce lookup and overload-resolution ambiguities. Target-derived bounds can alter inference, and dynamic construction still requires a singleton bound type group. The proposal retains phased fallback as the principal alternative and leaves dynamic inference and initializer-derived bounds open.