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https://github.com/golang/go
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515fa58ac9
Extend cmd/internal/src.PosBase to track column information, and adjust the meaning of the PosBase position to mean the position at which the PosBase's relative (line, col) position starts (rather than indicating the position of the //line directive). Because this semantic change is made in the compiler's noder, it doesn't affect the logic of src.PosBase, only its test setup (where PosBases are constructed with corrected incomming positions). In short, src.PosBase now matches syntax.PosBase with respect to the semantics of src.PosBase.pos. For #22662. Change-Id: I5b1451cb88fff3f149920c2eec08b6167955ce27 Reviewed-on: https://go-review.googlesource.com/96535 Reviewed-by: Matthew Dempsky <mdempsky@google.com>
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// run
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Verify effect of various line directives.
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// TODO: check columns
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package main
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import (
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"fmt"
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"runtime"
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)
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func check(file string, line int) {
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_, f, l, ok := runtime.Caller(1)
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if !ok {
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panic("runtime.Caller(1) failed")
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}
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if f != file || l != line {
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panic(fmt.Sprintf("got %s:%d; want %s:%d", f, l, file, line))
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}
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}
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func main() {
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//-style line directives
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//line :1
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check("??", 1) // no file specified
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//line foo.go:1
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check("foo.go", 1)
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//line bar.go:10:20
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check("bar.go", 10)
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//line :11:22
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check("bar.go", 11) // no file, but column specified => keep old filename
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/*-style line directives */
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/*line :1*/ check("??", 1) // no file specified
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/*line foo.go:1*/ check("foo.go", 1)
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/*line bar.go:10:20*/ check("bar.go", 10)
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/*line :11:22*/ check("bar.go", 11) // no file, but column specified => keep old filename
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/*line :10*/ check("??", 10); /*line foo.go:20*/ check("foo.go", 20); /*line :30:1*/ check("foo.go", 30)
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check("foo.go", 31)
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}
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