This test verifies document highlighting for control flow.

-- go.mod --
module mod.com

go 1.18

-- p.go --
package p

-- issue60589.go --
package p

// This test verifies that control flow highlighting correctly
// accounts for multi-name result parameters.
// In golang/go#60589, it did not.

func _() (foo int, bar, baz string) { //@ hiloc(func, "func", text), hiloc(foo, "foo", text), hiloc(fooint, "foo int", text), hiloc(int, "int", text), hiloc(bar, "bar", text), hiloc(beforebaz, " baz", text), hiloc(baz, "baz", text), hiloc(barbazstring, "bar, baz string", text), hiloc(beforestring, re`() string`, text), hiloc(string, "string", text)
	return 0, "1", "2" //@ hiloc(return, `return 0, "1", "2"`, text), hiloc(l0, "0", text), hiloc(l1, `"1"`, text), hiloc(l2, `"2"`, text)
}

// Assertions, expressed here to avoid clutter above.
// Note that when the cursor is over the field type, there is some
// (likely harmless) redundancy.

//@ highlight(func, func, return)
//@ highlight(foo, foo, l0)
//@ highlight(int, fooint, int, l0)
//@ highlight(bar, bar, l1)
//@ highlight(beforebaz)
//@ highlight(baz, baz, l2)
//@ highlight(beforestring, baz, l2)
//@ highlight(string, barbazstring, string, l1, l2)
//@ highlight(l0, foo, l0)
//@ highlight(l1, bar, l1)
//@ highlight(l2, baz, l2)

// Check that duplicate result names do not cause
// inaccurate highlighting.

func _() (x, x int32) { //@ loc(locx1, re`\((x)`), loc(locx2, re`(x) int`), hiloc(x1, re`\((x)`, text), hiloc(x2, re`(x) int`, text), diag(locx1, re"redeclared"), diag(locx2, re"redeclared")
	return 1, 2 //@ hiloc(one, "1", text), hiloc(two, "2", text)
}

//@ highlight(one, one, x1)
//@ highlight(two, two, x2)
//@ highlight(x1, x1, one)
//@ highlight(x2, x2, two)

-- issue65516.go --
package p

// This test checks that gopls doesn't crash while highlighting
// functions with no body (golang/go#65516).

func Foo() (int, string) //@hiloc(noBodyInt, "int", text), hiloc(noBodyFunc, "func", text)
//@highlight(noBodyInt, noBodyInt), highlight(noBodyFunc, noBodyFunc)

-- issue65952.go --
package p

// This test checks  that gopls doesn't crash while highlighting
// return values in functions with no results.

func _() {
	return 0 //@hiloc(ret1, "0", text), diag("0", re"too many return")
	//@highlight(ret1, ret1)
}

func _() () {
	// TODO(golang/go#65966): fix the triplicate diagnostics here.
	return 0 //@hiloc(ret2, "0", text), diag("0", re"too many return"), diag("0", re"too many return"), diag("0", re"too many return")
	//@highlight(ret2, ret2)
}
