Avoid double implicit type conversion on deferred built-in arguments. #998
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Because certain built-in function may not be translated into callable expressions, GopherJS wraps them into a proxy lambda function when necessary. Prior to this change it was incorrectly inferring argument types for this proxy function, which led to a possible double implicit type conversion and a runtime error in the generated code. With this change, the types are assigned in accordance with what the deferred function expects, and therefore no double conversion will happen. This change allows TesSliceNoCycle in `encoding/json` to pass under Go 1.16.
flimzy
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This was referenced Nov 21, 2021
nevkontakte
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Built-ins and `js.Object` methods are represented by JS expressions that may not be straightforward function calls, or reference functions defined in the prelude. In such cases, the callable expression must be wrapped in a lambda. gopherjs#998 has fixed a similar issue for the `defer` keyword, and this change generalizes the same fix for the `go` keyword. Fixes gopherjs#547.
nevkontakte
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Built-ins and `js.Object` methods are represented by JS expressions that may not be straightforward function calls, or reference functions defined in the prelude. In such cases, the callable expression must be wrapped in a lambda. gopherjs#998 has fixed a similar issue for the `defer` keyword, and this change generalizes the same fix for the `go` keyword. Fixes gopherjs#547.
nevkontakte
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Nov 21, 2021
Built-ins and `js.Object` methods are represented by JS expressions that may not be straightforward function calls, or reference functions defined in the prelude. In such cases, the callable expression must be wrapped in a lambda. gopherjs#998 has fixed a similar issue for the `defer` keyword, and this change generalizes the same fix for the `go` keyword. Fixes gopherjs#547.
nevkontakte
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Dec 19, 2021
Built-ins and `js.Object` methods are represented by JS expressions that may not be straightforward function calls, or reference functions defined in the prelude. In such cases, the callable expression must be wrapped in a lambda. gopherjs#998 has fixed a similar issue for the `defer` keyword, and this change generalizes the same fix for the `go` keyword. Fixes gopherjs#547.
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Because certain built-in function may not be translated into callable
expressions, GopherJS wraps them into a proxy lambda function when
necessary. Prior to this change it was incorrectly inferring argument
types for this proxy function, which led to a possible double implicit
type conversion and a runtime error in the generated code.
With this change, the types are assigned in accordance with what the
deferred function expects, and therefore no double conversion will
happen.
This change allows TesSliceNoCycle in
encoding/jsonto pass underGo 1.16.
Updates #989.