Finch/tests/run/structs_arrays_strings.fch
Nexoniarz f897fb3140 Rename the Finch file extension from .fn to .fch
.fn is already used by other tools (e.g. Fennel). Modules are now looked up as name.fch;
a leftover name.fn gets a clear message telling you to rename it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 19:27:42 +02:00

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struct Point {
int x
int y
}
struct Player {
str name = "nobody"
Point pos
[]int scores
int lives = 3
}
fn moved(Point p, int dx) -> Point {
return Point(x: p.x + dx, y: p.y)
}
fn total([]int xs) -> int {
sum := 0
for x in xs {
sum += x
}
return sum
}
fn addScore(Player p, int s) -> Player {
p.scores.push(s)
return p
}
fn main() {
p := Point(1, 2)
print(p, p.x, p.y)
q := moved(p, 10)
print(q)
pl := Player(name: "Ola")
print(pl)
pl.scores.push(10)
pl.scores.push(20)
pl.pos.x = 5
print(pl.name, pl.lives, pl.scores, pl.pos)
copy := pl
copy.name = "Tom"
copy.scores.push(30)
print(pl.name, pl.scores.len, copy.name, copy.scores.len)
pl2 := addScore(pl, 99)
print(pl.scores, pl2.scores)
nums := [5, 3, 8, 1]
nums.sort()
print(nums, total(nums), nums.len)
print(nums.pop(), nums)
nums.insert(0, 42)
nums.remove(1)
print(nums, nums.contains(8), nums.find(3))
names := ["b", "a", "c"]
names.sort()
print(names, names.join("-"))
s := "Hello"
s += ", Finch"
print(s, s.len, s[0], s.upper(), s.sub(0, 5))
words := "a,b,,c".split(",")
print(words, words.len)
print(" trim ".trim(), "x".repeat(3), "abc".replace("b", "BB"), "hello".contains("ell"))
print(str(42) + "!", str(3.5), str(true), int("123") + 1, float("2.5") * 2)
s[0] = 'J'
print(s)
for c in "hi" {
print(c)
}
grid := [[1, 2], [3, 4]]
grid[1].push(5)
print(grid, grid[1][2])
}