53c416396f
Strangely enough, the existing implementation used adjusted (by line directives) source positions to determine layout and thus required position corrections when printing a line directive. Instead, just use the unadjusted, absolute source positions and then printing a line directive doesn't require any adjustments, only some care to make sure it remains in column 1 as before. The new code doesn't need to parse line directives anymore and simply ensures that comments with the //line prefix and starting in column 1 remain in that position. That is a slight change from the old behavior (which ignored incorrect line directives, e.g. because they had an invalid line number) but unlikely to show up in real code. This is prep work for handling of line directives that also specify columns (which now won't require much special handling anymore). For #24143. Change-Id: I07eb2e1b35b37337e632e3dbf5b70c783c615f8a Reviewed-on: https://go-review.googlesource.com/99621 Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
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The Go Programming Language
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