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fix: circular assignment at structure instance elaborator #6105

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merged 1 commit into from
Nov 17, 2024

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This PR fixes a stack overflow caused by a cyclic assignment in the metavariable context. The cycle is unintentionally introduced by the structure instance elaborator.

closes #3150

This PR fixes a stack overflow caused by a cyclic assignment in the
metavariable context. The cycle is unintentionally introduced by the
structure instance elaborator.

closes #3150
@leodemoura leodemoura added the changelog-language Language features, tactics, and metaprograms label Nov 16, 2024
@github-actions github-actions bot temporarily deployed to lean-lang.org/lean4/doc November 17, 2024 00:18 Inactive
@github-actions github-actions bot added the toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN label Nov 17, 2024
leanprover-community-mathlib4-bot added a commit to leanprover-community/batteries that referenced this pull request Nov 17, 2024
leanprover-community-mathlib4-bot added a commit to leanprover-community/mathlib4 that referenced this pull request Nov 17, 2024
@leodemoura leodemoura added this pull request to the merge queue Nov 17, 2024
@leanprover-community-bot leanprover-community-bot added the builds-mathlib CI has verified that Mathlib builds against this PR label Nov 17, 2024
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Mathlib CI status (docs):

Merged via the queue into master with commit 5d553d6 Nov 17, 2024
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Bug leading to stack overflow
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