issues_test.go

Documentation: cmd/compile/internal/syntax

     1  // Copyright 2024 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // This file holds test cases for individual issues
     6  // for which there is (currently) no better location.
     7  
     8  package syntax
     9  
    10  import (
    11  	"strings"
    12  	"testing"
    13  )
    14  
    15  func TestIssue67866(t *testing.T) {
    16  	var tests = []string{
    17  		"package p; var _ = T{@0: 0}",
    18  		"package p; var _ = T{@1 + 2: 0}",
    19  		"package p; var _ = T{@x[i]: 0}",
    20  		"package p; var _ = T{@f(1, 2, 3): 0}",
    21  		"package p; var _ = T{@a + f(b) + <-ch: 0}",
    22  	}
    23  
    24  	for _, src := range tests {
    25  		// identify column position of @ and remove it from src
    26  		i := strings.Index(src, "@")
    27  		if i < 0 {
    28  			t.Errorf("%s: invalid test case (missing @)", src)
    29  			continue
    30  		}
    31  		src = src[:i] + src[i+1:]
    32  		want := colbase + uint(i)
    33  
    34  		f, err := Parse(nil, strings.NewReader(src), nil, nil, 0)
    35  		if err != nil {
    36  			t.Errorf("%s: %v", src, err)
    37  			continue
    38  		}
    39  
    40  		// locate KeyValueExpr
    41  		Inspect(f, func(n Node) bool {
    42  			_, ok := n.(*KeyValueExpr)
    43  			if ok {
    44  				if got := StartPos(n).Col(); got != want {
    45  					t.Errorf("%s: got col = %d, want %d", src, got, want)
    46  				}
    47  			}
    48  			return !ok
    49  		})
    50  	}
    51  }
    52
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