Compilers Good First Issues

compilers

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Open

Allow tuple labels passed to `satisfies` to participate in type inference

Experience EnhancementHelp WantedSuggestion

Microsoft/TypeScript #61,415 opened Mar 13, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments4 reactions0 assignees

Open

cmd/compile: parameters spilled onto stack do not have populated location field in DWARF

BugReportDebuggingNeedsInvestigationcompiler/runtimehelp wanted

golang/go #72,833 opened Mar 13, 2025 · Go · 133,883 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

'in' does not remove undefined from indexed value (with noUncheckedIndexedAccess)

Domain: check: Control FlowHelp WantedPossible Improvement

Microsoft/TypeScript #61,389 opened Mar 10, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

Nullable check ignores NotNullIfNotNullAttribute when the argument is method group

Area-CompilersBugFeature - Nullable Reference Typeshelp wanted

dotnet/roslyn #77,475 opened Mar 9, 2025 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

Intersection for same key read-only property maybe wrong

BugDomain: IntersectionHelp Wanted

Microsoft/TypeScript #61,344 opened Mar 4, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Support `proposal-json-parse-with-source` (`JSON.rawJSON()`, `JSON.isRawJSON()`, `context` parameter of `reviver` function, etc...)

BugDomain: lib.d.tsHelp Wanted

Microsoft/TypeScript #61,330 opened Mar 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments12 reactions0 assignees

Open

Suggestion: Support readonly interfaces in `getSuggestedLibFor...`

Domain: Error MessagesHelp WantedPossible Improvement

Microsoft/TypeScript #61,323 opened Mar 1, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

JSDoc `@` in the code block is broken

Domain: JSDocHelp WantedPossible Improvement

Microsoft/TypeScript #61,640 opened Feb 24, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

The is operator in the jitted code does not work for structref instance.

bug - miscompilegood first issue

numba/numba #9,936 opened Feb 24, 2025 · Python · 9,177 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

8 comments0 reactions0 assignees

Open

Exhaustive switch case with returns can mark a finally block as unreachable

BugDomain: check: Control FlowHelp Wanted

Microsoft/TypeScript #61,259 opened Feb 24, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments1 reaction0 assignees

Open

Mixins created from `obj.constructor` cannot have members

Domain: classesHelp WantedPossible Improvement

Microsoft/TypeScript #61,255 opened Feb 23, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments1 reaction0 assignees

Open

AMDGPU is missing simplify demanded bits optimizations of readfirstlane and similar operations

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #128,390 opened Feb 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

17 comments0 reactions3 assignees

Open

Conditional type flow types missing in the template in mapped types with as clause

Domain: Mapped TypesHelp WantedPossible Improvement

Microsoft/TypeScript #61,246 opened Feb 22, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Runtime crash on erlang when constructing bit arrays

discussionhelp wanted

gleam-lang/gleam #4,271 opened Feb 20, 2025 · Rust · 21,417 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

perf: add noexcept attribute to all scarlet functions that do not throw exceptions

enhancementgood first issue

Sh0g0-1758/scarlet #54 opened Feb 16, 2025 · C · 23 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

Narrow object property indexed by bracket notation when the key is a known literal type, regardless of where the key comes from

Domain: check: Control FlowHelp WantedPossible Improvement

Microsoft/TypeScript #61,176 opened Feb 14, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment11 reactions0 assignees

Open

Object.defineProperty(variable) does not error in `.js` files if `variable` does not exist

BugDomain: JavaScriptHelp Wanted

Microsoft/TypeScript #61,165 opened Feb 12, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

9 comments2 reactions0 assignees

Open

AMDGPU: can optimize away v_readfirstlane_b32 on implicit_def input

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #125,950 opened Feb 5, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

Index type distributes over intersections too eagerly

Domain: Indexed Access TypesHelp WantedPossible Improvement

Microsoft/TypeScript #61,101 opened Feb 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Add more context to unique symbols that appear in type errors

Domain: Error MessagesHelp WantedPossible Improvement

Microsoft/TypeScript #61,099 opened Feb 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

compilers

Open

Allow tuple labels passed to `satisfies` to participate in type inference

Experience EnhancementHelp WantedSuggestion

Microsoft/TypeScript #61,415 opened Mar 13, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments4 reactions0 assignees

Open

cmd/compile: parameters spilled onto stack do not have populated location field in DWARF

BugReportDebuggingNeedsInvestigationcompiler/runtimehelp wanted

golang/go #72,833 opened Mar 13, 2025 · Go · 133,883 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

'in' does not remove undefined from indexed value (with noUncheckedIndexedAccess)

Domain: check: Control FlowHelp WantedPossible Improvement

Microsoft/TypeScript #61,389 opened Mar 10, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

Nullable check ignores NotNullIfNotNullAttribute when the argument is method group

Area-CompilersBugFeature - Nullable Reference Typeshelp wanted

dotnet/roslyn #77,475 opened Mar 9, 2025 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

Intersection for same key read-only property maybe wrong

BugDomain: IntersectionHelp Wanted

Microsoft/TypeScript #61,344 opened Mar 4, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Support `proposal-json-parse-with-source` (`JSON.rawJSON()`, `JSON.isRawJSON()`, `context` parameter of `reviver` function, etc...)

BugDomain: lib.d.tsHelp Wanted

Microsoft/TypeScript #61,330 opened Mar 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments12 reactions0 assignees

Open

Suggestion: Support readonly interfaces in `getSuggestedLibFor...`

Domain: Error MessagesHelp WantedPossible Improvement

Microsoft/TypeScript #61,323 opened Mar 1, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

JSDoc `@` in the code block is broken

Domain: JSDocHelp WantedPossible Improvement

Microsoft/TypeScript #61,640 opened Feb 24, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

The is operator in the jitted code does not work for structref instance.

bug - miscompilegood first issue

numba/numba #9,936 opened Feb 24, 2025 · Python · 9,177 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

8 comments0 reactions0 assignees

Open

Exhaustive switch case with returns can mark a finally block as unreachable

BugDomain: check: Control FlowHelp Wanted

Microsoft/TypeScript #61,259 opened Feb 24, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments1 reaction0 assignees

Open

Mixins created from `obj.constructor` cannot have members

Domain: classesHelp WantedPossible Improvement

Microsoft/TypeScript #61,255 opened Feb 23, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments1 reaction0 assignees

Open

AMDGPU is missing simplify demanded bits optimizations of readfirstlane and similar operations

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #128,390 opened Feb 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

17 comments0 reactions3 assignees

Open

Conditional type flow types missing in the template in mapped types with as clause

Domain: Mapped TypesHelp WantedPossible Improvement

Microsoft/TypeScript #61,246 opened Feb 22, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Runtime crash on erlang when constructing bit arrays

discussionhelp wanted

gleam-lang/gleam #4,271 opened Feb 20, 2025 · Rust · 21,417 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

perf: add noexcept attribute to all scarlet functions that do not throw exceptions

enhancementgood first issue

Sh0g0-1758/scarlet #54 opened Feb 16, 2025 · C · 23 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

Narrow object property indexed by bracket notation when the key is a known literal type, regardless of where the key comes from

Domain: check: Control FlowHelp WantedPossible Improvement

Microsoft/TypeScript #61,176 opened Feb 14, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment11 reactions0 assignees

Open

Object.defineProperty(variable) does not error in `.js` files if `variable` does not exist

BugDomain: JavaScriptHelp Wanted

Microsoft/TypeScript #61,165 opened Feb 12, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

9 comments2 reactions0 assignees

Open

AMDGPU: can optimize away v_readfirstlane_b32 on implicit_def input

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #125,950 opened Feb 5, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

Index type distributes over intersections too eagerly

Domain: Indexed Access TypesHelp WantedPossible Improvement

Microsoft/TypeScript #61,101 opened Feb 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Add more context to unique symbols that appear in type errors

Domain: Error MessagesHelp WantedPossible Improvement

Microsoft/TypeScript #61,099 opened Feb 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

compilers

Loading results...

Open

Allow tuple labels passed to `satisfies` to participate in type inference

Experience EnhancementHelp WantedSuggestion

Microsoft/TypeScript #61,415 opened Mar 13, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments4 reactions0 assignees

Open

cmd/compile: parameters spilled onto stack do not have populated location field in DWARF

BugReportDebuggingNeedsInvestigationcompiler/runtimehelp wanted

golang/go #72,833 opened Mar 13, 2025 · Go · 133,883 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

'in' does not remove undefined from indexed value (with noUncheckedIndexedAccess)

Domain: check: Control FlowHelp WantedPossible Improvement

Microsoft/TypeScript #61,389 opened Mar 10, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

Nullable check ignores NotNullIfNotNullAttribute when the argument is method group

Area-CompilersBugFeature - Nullable Reference Typeshelp wanted

dotnet/roslyn #77,475 opened Mar 9, 2025 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

Intersection for same key read-only property maybe wrong

BugDomain: IntersectionHelp Wanted

Microsoft/TypeScript #61,344 opened Mar 4, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Support `proposal-json-parse-with-source` (`JSON.rawJSON()`, `JSON.isRawJSON()`, `context` parameter of `reviver` function, etc...)

BugDomain: lib.d.tsHelp Wanted

Microsoft/TypeScript #61,330 opened Mar 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments12 reactions0 assignees

Open

Suggestion: Support readonly interfaces in `getSuggestedLibFor...`

Domain: Error MessagesHelp WantedPossible Improvement

Microsoft/TypeScript #61,323 opened Mar 1, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

JSDoc `@` in the code block is broken

Domain: JSDocHelp WantedPossible Improvement

Microsoft/TypeScript #61,640 opened Feb 24, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

The is operator in the jitted code does not work for structref instance.

bug - miscompilegood first issue

numba/numba #9,936 opened Feb 24, 2025 · Python · 9,177 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

8 comments0 reactions0 assignees

Open

Exhaustive switch case with returns can mark a finally block as unreachable

BugDomain: check: Control FlowHelp Wanted

Microsoft/TypeScript #61,259 opened Feb 24, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments1 reaction0 assignees

Open

Mixins created from `obj.constructor` cannot have members

Domain: classesHelp WantedPossible Improvement

Microsoft/TypeScript #61,255 opened Feb 23, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments1 reaction0 assignees

Open

AMDGPU is missing simplify demanded bits optimizations of readfirstlane and similar operations

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #128,390 opened Feb 23, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

17 comments0 reactions3 assignees

Open

Conditional type flow types missing in the template in mapped types with as clause

Domain: Mapped TypesHelp WantedPossible Improvement

Microsoft/TypeScript #61,246 opened Feb 22, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Runtime crash on erlang when constructing bit arrays

discussionhelp wanted

gleam-lang/gleam #4,271 opened Feb 20, 2025 · Rust · 21,417 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

perf: add noexcept attribute to all scarlet functions that do not throw exceptions

enhancementgood first issue

Sh0g0-1758/scarlet #54 opened Feb 16, 2025 · C · 23 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

Narrow object property indexed by bracket notation when the key is a known literal type, regardless of where the key comes from

Domain: check: Control FlowHelp WantedPossible Improvement

Microsoft/TypeScript #61,176 opened Feb 14, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment11 reactions0 assignees

Open

Object.defineProperty(variable) does not error in `.js` files if `variable` does not exist

BugDomain: JavaScriptHelp Wanted

Microsoft/TypeScript #61,165 opened Feb 12, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

9 comments2 reactions0 assignees

Open

AMDGPU: can optimize away v_readfirstlane_b32 on implicit_def input

backend:AMDGPUgood first issuemissed-optimization

llvm/llvm-project #125,950 opened Feb 5, 2025 · C++ · 26,378 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

Index type distributes over intersections too eagerly

Domain: Indexed Access TypesHelp WantedPossible Improvement

Microsoft/TypeScript #61,101 opened Feb 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

Add more context to unique symbols that appear in type errors

Domain: Error MessagesHelp WantedPossible Improvement

Microsoft/TypeScript #61,099 opened Feb 2, 2025 · TypeScript · 48,455 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

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Compilers Good First Issues