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proc_macro: Improve Debug representations #49748

Merged
merged 2 commits into from
Apr 7, 2018
Merged

proc_macro: Improve Debug representations #49748

merged 2 commits into from
Apr 7, 2018

Commits on Apr 6, 2018

  1. proc_macro: Improve Debug representations 

    This commit improves the `fmt::Debug` output of `proc_macro` data structures by
primarily focusing on the representation exposed by `proc_macro` rather than the
compiler's own internal representation. This cuts down quite a bit on assorted
wrapper types and ensure a relatively clean output.

Closes rust-lang#49720
    @alexcrichton
    alexcrichton committed Apr 6, 2018
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Commits on Apr 7, 2018

  1. Print proc_macro spans as a half-open range 

    A span covering a single byte, such as for an operator `+` token, should
print as e.g. `80..81` rather than `80...81`. The lo end of the range is
inclusive and the hi end is exclusive.
    @dtolnay
    dtolnay committed Apr 7, 2018
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