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Tracking issue for MCP 1017: Wasm proc macro support #160389

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Tracking issue for MCP 1017: Wasm proc macro support#160389
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Mark-Simulacrum
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B-MCP-approvedBlocker: Approved by an accepted MCP but not yet fully implemented.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCS-tracking-unimplementedStatus: The feature has not been implemented.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

Description

@rustbot
rustbot
opened on Aug 2, 2026

This is a tracking issue for MCP "Wasm proc macro support" (rust-lang/compiler-team#1017).

Note

Tracking issues are used to record the overall progress of implementation.
They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions.

A tracking issue is however not meant for large scale discussion, questions, or bug reports.
Instead, open a dedicated issue for the specific matter, link to this tracking issue and ping the MCP author.
Alternatively, post in the Zulip stream linked from the MCP.

Discussion comments will get marked as off-topic or deleted.
Repeated discussions on the tracking issue may lead to the tracking issue getting locked.

Steps

  • Implement the MCP
  • Adjust the documentation

Unresolved questions

None so far.

Implementation history

@Mark-Simulacrum, consider @rustbot claim'ing the work.

Activity

  1. rustbot
    added
    T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
    C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFC
    S-tracking-unimplementedStatus: The feature has not been implemented.
    B-MCP-approvedBlocker: Approved by an accepted MCP but not yet fully implemented.
    on Aug 2, 2026
  2. Mark-Simulacrum
    self-assigned this
    on Aug 2, 2026
  3. JonathanBrouwer
    added 3 commits that reference this issue on Aug 11, 2026

    Rollup merge of rust-lang#160854 - Mark-Simulacrum:wasm-macro-partial…

    6aa656f

    Rollup merge of rust-lang#160854 - Mark-Simulacrum:wasm-macro-partial…

    7f3952a

    Rollup merge of rust-lang#160854 - Mark-Simulacrum:wasm-macro-partial…

    08ccbd4
  4. jhpratt
    added a commit that references this issue on Aug 12, 2026

    Rollup merge of rust-lang#160854 - Mark-Simulacrum:wasm-macro-partial…

    8486ea5
  5. rust-timer
    added a commit that references this issue on Aug 12, 2026

    Unrolled build for #160854

    743c378
  6. JonathanBrouwer
    added a commit that references this issue on Aug 12, 2026

    Rollup merge of rust-lang#160975 - bjorn3:proc_macro_refactors6, r=Ma…

    2cdff07
  7. rust-bors
    added a commit that references this issue on Aug 12, 2026

    Auto merge of #160975 - bjorn3:proc_macro_refactors6, r=Mark-Simulacrum

    8dbecb9
  8. JonathanBrouwer
    added a commit that references this issue on Aug 12, 2026

    Rollup merge of rust-lang#160975 - bjorn3:proc_macro_refactors6, r=Ma…

    b42e08e
  9. rust-bors
    added a commit that references this issue on Aug 12, 2026

    Auto merge of #160975 - bjorn3:proc_macro_refactors6, r=Mark-Simulacrum

    eda08b5
  10. jhpratt
    added a commit that references this issue on Aug 13, 2026

    Rollup merge of rust-lang#160975 - bjorn3:proc_macro_refactors6, r=Ma…

    08d99b8
  11. rust-timer
    added a commit that references this issue on Aug 13, 2026

    Unrolled build for #160975

    75757ea
  12. lnicola
    added a commit that references this issue on Aug 17, 2026

    Rollup merge of #160975 - bjorn3:proc_macro_refactors6, r=Mark-Simula…

    2991b6e
  13. jhpratt
    added a commit that references this issue on Aug 21, 2026

    Rollup merge of rust-lang#160981 - bjorn3:proc_macro_refactors7, r=Ma…

    d6998e2
  14. rust-bors
    added a commit that references this issue on Aug 21, 2026

    Unrolled build for #160981 in rollup 161434

    0d5e904
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B-MCP-approvedBlocker: Approved by an accepted MCP but not yet fully implemented.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCS-tracking-unimplementedStatus: The feature has not been implemented.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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