The following is wasteful of vertical space:
```
_ =
let
longIdentifierForShortValue = 1
in
longIdentifierForShortValue + longIdentifierForShortValue
```
We should format it on two lines if possible.
```
_ =
let longIdentifierForShortValue = 1
in longIdentifierForShortValue + longIdentifierForShortValue
```
This commit also allows for a mix of variations:
```
_ =
let
longIdentifierForShortValue = 1
in longIdentifierForShortValue + longIdentifierForShortValue
_ =
let longIdentifierForShortValue = 1
in
longIdentifierForShortValue + longIdentifierForShortValue
```
Constrained forall formats aligned the `.` to the left. Constrained
formats aligned the `.` to the right. This change adds consistency
between both formats.
Let expressions with multiple bindings automattically indent and pull
left
```
let
a = b
c = d
in foo bar baz
```
```
let
a = b
c = d
in
foo bar baz
```
```
let
a = b
c = d
in foo
bar
baz
```
```
let
a = b
c = d
in
foo
bar
baz
```
This fix does not work on ghc-8.0, because I do not understand
the 8.0 API in this instance. Could be resolved by looking
at annotations, but that really should not be necessary.
- switch to XDG path should be backwards-compatible:
- new config will be written to XDG path
- but existing config in ~/.brittany will be respected
- looks for "brittany.yaml" not only in cwd, but in parents too.
uses the first file found.
fixes#45, fixes#55
Split up annotations by top-level elements in one
go, instead of doing the filtering per top-level
element (which necessarily makes things quadratic,
or rather O(n*m) with n top-level elements and m
size of annotation map). The fixed version should
be O(log n * m), and log n is negligible.
Previously, if the input did not end with a newline
character and config had 'ppconf_hackAroundIncludes = True'
then due to using unlines/lines the output contained an
additional newline.
- one-line externals are not detected as multiline in backend
- layouting of EAsPat (when TypeApplications is disabled)
- layouting of HsTyLit (TypeApplications with literals)
for the compilation of that module, GHC max residency
was an astounding 600MB for Config/Types.hs;
for Config/Types/Instances.hs it now "only" is 480MB.
(numbers according to "+RTS -s", the real usage
accoding to `time` is about 20% higher even.)