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go/parser: fails when a valid function declaration follows an broken one #29145

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stamblerre opened this issue Dec 7, 2018 · 1 comment

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commented Dec 7, 2018

Repro case:

package main

type e struct {
	error
}

func (*e) random() {}

func main() {
	var diags []error
	for _, err := range diags {
		handled := handle(err)
                handled.
	}
}

func handle(err error) *e {
	return &e{err}
}

The selector with no "Sel" field breaks parsing in the main function, causing the code below it to fail parsing. The handle function never gets registered as a function declaration. Moving the handle function above the main function causes this code to type-check as expected. This poses a problem for editor-integrated tools that need to work on broken code.

@stamblerre stamblerre self-assigned this Dec 7, 2018

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commented Dec 7, 2018

@ALTree ALTree added this to the Unplanned milestone Dec 13, 2018

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