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Pretty-print values in the REPL

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Pretty-print values in the REPL by printing each item in a list or
attrset on a separate line. When possible, single-item lists and
attrsets are printed on one line, as long as they don't contain a nested
list, attrset, or thunk.

Before:
```
{ attrs = { a = { b = { c = { }; }; }; }; list = [ 1 ]; list' = [ 1 2 3 ]; }
```

After:
```
{
  attrs = {
    a = {
      b = {
        c = { };
      };
    };
  };
  list = [ 1 ];
  list' = [
    1
    2
    3
  ];
}
```
This commit is contained in:
Rebecca Turner 2024-02-04 00:40:30 -08:00
parent a31f2cb0cd
commit c0a15fb7d0
No known key found for this signature in database
6 changed files with 195 additions and 23 deletions
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8
tests/unit/libexpr/value/print.cc
View file

@ -756,7 +756,7 @@ TEST_F(ValuePrintingTests, ansiColorsAttrsElided)
vAttrs.mkAttrs(builder.finish());
test(vAttrs,
"{ one = " ANSI_CYAN "1" ANSI_NORMAL "; " ANSI_FAINT "«1 attribute elided»" ANSI_NORMAL "}",
"{ one = " ANSI_CYAN "1" ANSI_NORMAL "; " ANSI_FAINT "«1 attribute elided»" ANSI_NORMAL " }",
PrintOptions {
.ansiColors = true,
.maxAttrs = 1
@ -769,7 +769,7 @@ TEST_F(ValuePrintingTests, ansiColorsAttrsElided)
vAttrs.mkAttrs(builder.finish());
test(vAttrs,
"{ one = " ANSI_CYAN "1" ANSI_NORMAL "; " ANSI_FAINT "«2 attributes elided»" ANSI_NORMAL "}",
"{ one = " ANSI_CYAN "1" ANSI_NORMAL "; " ANSI_FAINT "«2 attributes elided»" ANSI_NORMAL " }",
PrintOptions {
.ansiColors = true,
.maxAttrs = 1
@ -793,7 +793,7 @@ TEST_F(ValuePrintingTests, ansiColorsListElided)
vList.bigList.size = 2;
test(vList,
"[ " ANSI_CYAN "1" ANSI_NORMAL " " ANSI_FAINT "«1 item elided»" ANSI_NORMAL "]",
"[ " ANSI_CYAN "1" ANSI_NORMAL " " ANSI_FAINT "«1 item elided»" ANSI_NORMAL " ]",
PrintOptions {
.ansiColors = true,
.maxListItems = 1
@ -806,7 +806,7 @@ TEST_F(ValuePrintingTests, ansiColorsListElided)
vList.bigList.size = 3;
test(vList,
"[ " ANSI_CYAN "1" ANSI_NORMAL " " ANSI_FAINT "«2 items elided»" ANSI_NORMAL "]",
"[ " ANSI_CYAN "1" ANSI_NORMAL " " ANSI_FAINT "«2 items elided»" ANSI_NORMAL " ]",
PrintOptions {
.ansiColors = true,
.maxListItems = 1