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fix: resolve the problem named "Sequence contains no elements" #65

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Merged
unrenormalizable merged 1 commit into from
Jun 10, 2025
Merged

fix: resolve the problem named "Sequence contains no elements" #65

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15 changes: 15 additions & 0 deletions src/RustAnalyzer.TestAdapter/Cargo/ToolChainServiceExtensions.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,21 @@ public static async Task<Toolchain[]> GetInstalledToolchainsAsync(PathEx working
if (activeRaw != null)
{
var i = Array.FindIndex(tcs, tc => tc.Name == activeRaw);

// 1.Background: There are cases where projects are pinned to specific Rust versions, and it's also possible that users have installed multiple Rust versions.

// 2.Result: This leads to matching failures during exact name matching.

// Example(e.g.):
// Actual Name: `1.85.1 - x86_64 - pc - windows - msvc(active)`
// activeRaw: `1.85.1 - x86_64 - pc - windows - msvc`

// This results in the error: "Sequence contains no elements"
if (i == -1)
{
i = Array.FindIndex(tcs, t => t.Name.StartsWith(activeRaw));
}

if (i != -1)
{
tcs[i].IsDefault = true;
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