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const assert = @import("std").debug.assert;
fn compileTimeRecursion() {
@setFnTest(this);
assert(some_data.len == 21);
}
var some_data: [usize(fibbonaci(7))]u8 = undefined;
fn fibbonaci(x: i32) -> i32 {
if (x <= 1) return 1;
return fibbonaci(x - 1) + fibbonaci(x - 2);
}
fn unwrapAndAddOne(blah: ?i32) -> i32 {
return ??blah + 1;
}
const should_be_1235 = unwrapAndAddOne(1234);
fn testStaticAddOne() {
@setFnTest(this);
assert(should_be_1235 == 1235);
}
fn inlinedLoop() {
@setFnTest(this);
inline var i = 0;
inline var sum = 0;
inline while (i <= 5; i += 1)
sum += i;
assert(sum == 15);
}
fn gimme1or2(inline a: bool) -> i32 {
const x: i32 = 1;
const y: i32 = 2;
inline var z: i32 = if (a) x else y;
return z;
}
fn inlineVariableGetsResultOfConstIf() {
@setFnTest(this);
assert(gimme1or2(true) == 1);
assert(gimme1or2(false) == 2);
}
fn staticFunctionEvaluation() {
@setFnTest(this);
assert(statically_added_number == 3);
}
const statically_added_number = staticAdd(1, 2);
fn staticAdd(a: i32, b: i32) -> i32 { a + b }
fn constExprEvalOnSingleExprBlocks() {
@setFnTest(this);
assert(constExprEvalOnSingleExprBlocksFn(1, true) == 3);
}
fn constExprEvalOnSingleExprBlocksFn(x: i32, b: bool) -> i32 {
const literal = 3;
const result = if (b) {
literal
} else {
x
};
return result;
}
fn staticallyInitalizedList() {
@setFnTest(this);
assert(static_point_list[0].x == 1);
assert(static_point_list[0].y == 2);
assert(static_point_list[1].x == 3);
assert(static_point_list[1].y == 4);
}
const Point = struct {
x: i32,
y: i32,
};
const static_point_list = []Point { makePoint(1, 2), makePoint(3, 4) };
fn makePoint(x: i32, y: i32) -> Point {
return Point {
.x = x,
.y = y,
};
}
fn staticEvalListInit() {
@setFnTest(this);
assert(static_vec3.data[2] == 1.0);
assert(vec3(0.0, 0.0, 3.0).data[2] == 3.0);
}
const static_vec3 = vec3(0.0, 0.0, 1.0);
pub const Vec3 = struct {
data: [3]f32,
};
pub fn vec3(x: f32, y: f32, z: f32) -> Vec3 {
Vec3 {
.data = []f32 { x, y, z, },
}
}
fn constantExpressions() {
@setFnTest(this);
var array : [array_size]u8 = undefined;
assert(@sizeOf(@typeOf(array)) == 20);
}
const array_size : u8 = 20;
fn constantStructWithNegation() {
@setFnTest(this);
assert(vertices[0].x == -0.6);
}
const Vertex = struct {
x: f32,
y: f32,
r: f32,
g: f32,
b: f32,
};
const vertices = []Vertex {
Vertex { .x = -0.6, .y = -0.4, .r = 1.0, .g = 0.0, .b = 0.0 },
Vertex { .x = 0.6, .y = -0.4, .r = 0.0, .g = 1.0, .b = 0.0 },
Vertex { .x = 0.0, .y = 0.6, .r = 0.0, .g = 0.0, .b = 1.0 },
};
fn staticallyInitalizedStruct() {
@setFnTest(this);
st_init_str_foo.x += 1;
assert(st_init_str_foo.x == 14);
}
const StInitStrFoo = struct {
x: i32,
y: bool,
};
var st_init_str_foo = StInitStrFoo { .x = 13, .y = true, };
fn staticallyInitializedArrayLiteral() {
@setFnTest(this);
const y : [4]u8 = st_init_arr_lit_x;
assert(y[3] == 4);
}
const st_init_arr_lit_x = []u8{1,2,3,4};
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