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refactor: collapse statements in single assignments

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Problem:

Variables are often assigned multiple places in common patterns.

Solution:

Replace these common patterns with different patterns that reduce the
number of assignments.

Use `MAX` and `MIN`:
```c
if (x < y) {
  x = y;
}

// -->

x = MAX(x, y);
```

```c
if (x > y) {
  x = y;
}

// -->

x = MIN(x, y);
```

Use ternary:
```c
int a;
if (cond) {
  a = b;
} els {
  a = c;
}

// -->

int a = cond ? b : c;

```
This commit is contained in:
Lewis Russell
2024-07-19 11:00:13 +01:00
committed by Lewis Russell
parent 1b5a394ffd
commit d1bd3d643e
36 changed files with 419 additions and 1214 deletions
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21
src/nvim/cmdexpand.c
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@@ -670,10 +670,7 @@ static char *get_next_or_prev_match(int mode, expand_T *xp)
ht -= 2;
}
findex -= ht;
if (findex < 0) {
// few entries left, select the first entry
findex = 0;
}
findex = MAX(findex, 0); // few entries left, select the first entry
}
} else if (mode == WILD_PAGEDOWN) {
if (findex == xp->xp_numfiles - 1) {
@@ -701,18 +698,10 @@ static char *get_next_or_prev_match(int mode, expand_T *xp)
// When wrapping around, return the original string, set findex to -1.
if (findex < 0) {
if (xp->xp_orig == NULL) {
findex = xp->xp_numfiles - 1;
} else {
findex = -1;
}
findex = xp->xp_orig == NULL ? xp->xp_numfiles - 1 : -1;
}
if (findex >= xp->xp_numfiles) {
if (xp->xp_orig == NULL) {
findex = 0;
} else {
findex = -1;
}
findex = xp->xp_orig == NULL ? 0 : -1;
}
if (compl_match_array) {
compl_selected = findex;
@@ -1112,9 +1101,7 @@ int showmatches(expand_T *xp, bool wildmenu)
} else {
j = vim_strsize(SHOW_MATCH(i));
}
if (j > maxlen) {
maxlen = j;
}
maxlen = MAX(maxlen, j);
}
if (xp->xp_context == EXPAND_TAGS_LISTFILES) {