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tsgo loses all type narrowing in a switch (typeof x) when any clause is case ""

Status: Open.

#3909 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo incorrectly renames arguments destructuring property when targeting ES2015

Status: Open.

#3908 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo declaration emit drops readonly from method shorthands and outer properties in as const object literal

Status: Open.

#3907 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo emits incorrect string value when encountering a backslash before a non-special character

Status: Open.

#3906 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo panics when a type-only export is the body of an if statement

Crash

Status: Open.

#3904 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo panics for rest properties in catch binding when targeting ES2017

Crash

Status: Open.

#3903 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo panics for a contextually typed function with optional and rest params

Crash

Status: Open.

#3902 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo source-map emit panics for an unclosed block

Crash

Status: Open.

#3900 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo breaks type soundness for lone-surrogate string literals

Status: Open.

#3899 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo creates a distinct enum literal type for each NaN-valued enum member

Status: Open.

#3898 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo emits -NaN for enum members with NaN value in declaration output

Status: Open.

#3896 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026

tsgo's Uppercase/Lowercase intrinsic types don't apply Unicode special case mappings

Status: Open.

#3895 In microsoft/typescript-go;

· mariusschulz opened on May 16, 2026