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cmd/compile: record original and absolute file names for line directives

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Also, with this change, error locations don't print absolute positions
in [] brackets following positions relative to line directives. To get
the absolute positions as well, specify the -L flag.

Fixes #22660.

Change-Id: I9ecfa254f053defba9c802222874155fa12fee2c
Reviewed-on: https://go-review.googlesource.com/77090
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
griesemer 2017-11-10 11:38:51 -08:00 • committed by Robert Griesemer
parent 2c00dea18b
commit ca2a886cba
12 changed files with 83 additions and 27 deletions
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3
src/cmd/asm/internal/lex/input.go
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@ -13,6 +13,7 @@ import (
"text/scanner"
"cmd/asm/internal/flags"
"cmd/internal/objabi"
"cmd/internal/src"
)
@ -454,7 +455,7 @@ func (in *Input) line() {
in.Error("unexpected token at end of #line: ", tok)
}
pos := src.MakePos(in.Base(), uint(in.Line()), uint(in.Col()))
in.Stack.SetBase(src.NewLinePragmaBase(pos, file, uint(line)))
in.Stack.SetBase(src.NewLinePragmaBase(pos, file, objabi.AbsFile(objabi.WorkingDir(), file, *flags.TrimPath), uint(line)))
}
// #undef processing