mirror of
https://github.com/Nexoniarz/Finch.git
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1dc976bd8f
- struct with default values; constructors Point(1, 2) / Point(x: 1); field access, auto-deref through pointers - []T arrays with bounds checks, literals, for-each, push/pop/insert/remove/clear/resize/find/contains/join/slice/reverse/sort - str carries its length: .len, s[i], +, comparison, sub/find/split/trim/upper/lower/replace/repeat/bytes, str(x), int(s), float(s) - Memory: values own their memory and are freed at the end of their block; assignment copies, temporaries move; parameters are lent and only copied when the function changes them; defer; new()/free() for manual heap memory - input(), read_file/write_file/file_exists, exit(), fn main([]str args) - Finch modules: import name, module.fn(), module.Struct - C structs from headers (fields, fixed arrays, nested); passed and returned by value with the System V x86-64 ABI; addr(fn) gives C a callback - link "file.c" compiles and links your own C code - -g emits DWARF debug info (gdb/lldb) - Small C runtime (runtime/finch_rt.c) embedded in the compiler, cached in ~/.cache/finch - Tests: 58, all clean under valgrind (MEMCHECK=1 tests/run.sh) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
78 lines
1.5 KiB
Text
78 lines
1.5 KiB
Text
struct Point {
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int x
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int y
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}
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struct Player {
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str name = "nobody"
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Point pos
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[]int scores
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int lives = 3
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}
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fn moved(Point p, int dx) -> Point {
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return Point(x: p.x + dx, y: p.y)
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}
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fn total([]int xs) -> int {
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sum := 0
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for x in xs {
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sum += x
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}
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return sum
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}
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fn addScore(Player p, int s) -> Player {
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p.scores.push(s)
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return p
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}
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fn main() {
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p := Point(1, 2)
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print(p, p.x, p.y)
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q := moved(p, 10)
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print(q)
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pl := Player(name: "Ola")
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print(pl)
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pl.scores.push(10)
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pl.scores.push(20)
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pl.pos.x = 5
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print(pl.name, pl.lives, pl.scores, pl.pos)
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copy := pl
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copy.name = "Tom"
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copy.scores.push(30)
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print(pl.name, pl.scores.len, copy.name, copy.scores.len)
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pl2 := addScore(pl, 99)
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print(pl.scores, pl2.scores)
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nums := [5, 3, 8, 1]
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nums.sort()
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print(nums, total(nums), nums.len)
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print(nums.pop(), nums)
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nums.insert(0, 42)
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nums.remove(1)
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print(nums, nums.contains(8), nums.find(3))
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names := ["b", "a", "c"]
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names.sort()
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print(names, names.join("-"))
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s := "Hello"
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s += ", Finch"
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print(s, s.len, s[0], s.upper(), s.sub(0, 5))
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words := "a,b,,c".split(",")
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print(words, words.len)
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print(" trim ".trim(), "x".repeat(3), "abc".replace("b", "BB"), "hello".contains("ell"))
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print(str(42) + "!", str(3.5), str(true), int("123") + 1, float("2.5") * 2)
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s[0] = 'J'
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print(s)
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for c in "hi" {
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print(c)
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}
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grid := [[1, 2], [3, 4]]
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grid[1].push(5)
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print(grid, grid[1][2])
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}
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