From 5716b1c9a72a25110f8a19ec2d72801de5da0f90 Mon Sep 17 00:00:00 2001
From: David Gonzalez Martin <davidgmbb@gmail.com>
Date: Sun, 22 Jun 2025 15:58:31 -0600
Subject: [PATCH] wip

---
 tests/global.bbb |   3 +-
 tests/tests.bbb  | 803 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 805 insertions(+), 1 deletion(-)
 create mode 100644 tests/tests.bbb

diff --git a/tests/global.bbb b/tests/global.bbb
index 1859a25..ddb293e 100644
--- a/tests/global.bbb
+++ b/tests/global.bbb
@@ -1,5 +1,6 @@
 result: s32 = 0;
 
-[export] main = fn [cc(c)] () s32 {
+[export] main = fn [cc(c)] () s32
+{
     return result;
 }
diff --git a/tests/tests.bbb b/tests/tests.bbb
new file mode 100644
index 0000000..e9590f9
--- /dev/null
+++ b/tests/tests.bbb
@@ -0,0 +1,803 @@
+require = fn (ok: u1) void
+{
+    if (!ok)
+    {
+        #trap();
+    }
+}
+
+return_constant = fn () s32 // This is a comment
+// This is a comment
+{ // This is a comment
+    // This is a comment
+    return 0; // This is a comment
+}// This is a comment
+// This is a comment
+
+constant_add = fn () s32
+{
+    return -1 + 1;
+}
+
+constant_and = fn () s32
+{
+    return 1 & 2;
+}
+
+constant_div = fn () s32
+{
+    return 0 / 5;
+}
+
+constant_mul = fn () s32
+{
+    return 1 * 0;
+}
+
+constant_rem = fn () s32
+{
+    return 5 % 5;
+}
+
+constant_or = fn () s32
+{
+    return 0 % 0;
+}
+
+constant_sub = fn () s32
+{
+    return 1 - 1;
+}
+
+constant_xor = fn () s32
+{
+    return 0 ^ 0;
+}
+
+constant_shift_left = fn () s32
+{
+    return 0 << 1;
+}
+
+constant_shift_right = fn () s32
+{
+    return 0 >> 1;
+}
+
+minimal_stack = fn () s32
+{
+    >a: s32 = 0;
+    return a;
+}
+
+minimal_stack_arithmetic0 = fn () s32
+{
+    >a: s32 = 1;
+    return a - 1;
+}
+
+minimal_stack_arithmetic1 = fn () s32
+{
+    >a: s32 = 1;
+    >b = a - 1;
+    return b;
+}
+
+minimal_stack_arithmetic2 = fn () s32
+{
+    >a: s32 = 1;
+    >b = 1 - a;
+    return b;
+}
+
+stack_negation = fn () s32
+{
+    >v: s32 = 0;
+    return -v;
+}
+
+stack_add = fn () s32
+{
+    >a: s32 = -1;
+    >b: s32 = 1;
+    return a + b;
+}
+
+stack_sub = fn () s32
+{
+    >a: s32 = 1;
+    >b: s32 = 1;
+    return a - b;
+}
+
+extend = fn () s32
+{
+    >a: s8 = 0;
+    return #extend(a);
+}
+
+integer_max = fn () s32
+{
+    >a = #integer_max(u64);
+    return #truncate(a + 1);
+}
+
+integer_hex = fn () s32
+{
+    >result: s32 = 0x0;
+    return result;
+}
+
+basic_pointer = fn () s32
+{
+    >a: s32 = 0;
+    >pointer = &a;
+    return pointer.&;
+}
+
+basic_call_foo = fn () s32
+{
+    return 0;
+}
+
+basic_call = fn () s32
+{
+    return basic_call_foo();
+}
+
+basic_branch = fn () s32
+{
+    >result: s32 = 1;
+    if (result != 1)
+    {
+        return 1;
+    }
+    else
+    {
+        return 0;
+    }
+}
+
+basic_array = fn () s32
+{
+    >array: [_]s32 = [3, 2, 1, 0];
+    return array[3];
+}
+
+BasicEnum = enum
+{
+    zero = 0,
+    one = 1,
+    two = 2,
+    three = 3,
+}
+
+basic_enum = fn () s32
+{
+    >a: BasicEnum = .three;
+    >b: BasicEnum = .two;
+    >c: BasicEnum = .one;
+    >a_int: s32 = #extend(#int_from_enum(a));
+    >b_int: s32 = #extend(#int_from_enum(b));
+    >c_int: s32 = #extend(#int_from_enum(c));
+
+    return a_int - (b_int + c_int);
+}
+
+basic_slice_receiver = fn (slice: []u8) void
+{
+    require(slice.length == 3);
+    require(slice[0] == 0);
+    require(slice[1] == 1);
+    require(slice[2] == 2);
+}
+
+basic_slice = fn () void
+{
+    >a: [_]u8 = [0, 1, 2];
+    basic_slice_receiver(a[..]);
+}
+
+basic_string = fn () void
+{
+    >string = "abc";
+    require(string[0] == 'a');
+    require(string[1] == 'b');
+    require(string[2] == 'c');
+}
+
+basic_varargs_function = fn [cc(c)] (first_arg: u32, ...) void
+{
+    require(first_arg == 123456789);
+
+    >va = #va_start();
+
+    >a = #va_arg(&va, u32);
+
+    require(a == 987654321);
+
+    >first_arg_b = #va_arg(&va, u32);
+    require(first_arg == first_arg_b);
+}
+
+basic_varargs = fn () void
+{
+    >first_arg: u32 = 123456789;
+    >a: u32 = 987654321;
+    basic_varargs_function(first_arg, a, first_arg);
+}
+
+c_string_length = fn (c_string: &u8) u64
+{
+    >it = c_string;
+
+    while (it.&)
+    {
+        it = it + 1;
+    }
+
+    return #int_from_pointer(it) - #int_from_pointer(c_string);
+}
+
+basic_while = fn (argc: s32, argv: &&u8) void
+{
+    require(argc != 0);
+
+    >first_arg = argv[0];
+    require(first_arg != zero);
+
+    >arg_length = c_string_length(first_arg);
+    require(arg_length != 0);
+
+    require(first_arg[arg_length] == 0);
+}
+
+pointer_function = fn (v: &s32) void
+{
+    v.& = 1;
+}
+
+pointer = fn () s32
+{
+    >value: s32 = 0;
+    pointer_function(&value);
+    return #extend(value == 0);
+}
+
+pointer_cast = fn () s32
+{
+    >result: u32 = 0;
+    >p = &result;
+    >signed_pointer: &s32 = #pointer_cast(p);
+    return signed_pointer.&;
+}
+
+u1_return_foo = fn () u1
+{
+    >result: u1 = 0;
+    return result;
+}
+
+u1_return = fn () s32
+{
+    >result = u1_return_foo();
+    return #extend(result);
+}
+
+local_type_inference_foo = fn () s32
+{
+    return 0;
+}
+
+local_type_inference = fn () s32
+{
+    >a: s32 = 0;
+    >result = local_type_inference_foo() + a;
+    return result;
+}
+
+basic_global_foo: s32 = 0;
+
+basic_global = fn () s32
+{
+    return basic_global_foo;
+}
+
+basic_function_pointer_callback = fn () s32
+{
+    return 123;
+}
+
+basic_function_pointer = fn () s32
+{
+    >function_pointer = &basic_function_pointer_callback;
+    return function_pointer() - 123;
+}
+
+[extern] strlen = fn [cc(c)] (string: &u8) s64;
+
+basic_extern = fn () void
+{
+    >length = strlen("abc");
+    require(length == 3);
+}
+
+basic_byte_size = fn () void
+{
+    >sizeofu8: u8 = #byte_size(u8);
+    require(sizeofu8 == 1);
+    >sizeofu16: u8 = #byte_size(u16);
+    require(sizeofu16 == 2);
+    >sizeofs32: s32 = #byte_size(s32);
+    require(sizeofs32 == 4);
+    >sizeofs64: s32 = #byte_size(s64);
+    require(sizeofs64 == 8);
+}
+
+unsigned_assignment_operators = fn(n: s32) s32
+{
+    >result: u32 = #extend(n);
+    result >>= 1;
+    result <<= 1;
+    result ^= 1;
+    result |= 1;
+    result &= 1;
+    result += 1;
+    result -= 1;
+    result /= 1;
+    result %= 1;
+    result *= 0;
+
+    return #extend(result);
+}
+
+assignment_operators = fn () s32
+{
+    >result: s32 = 0;
+    >pointer = &result;
+    pointer -= 1;
+    pointer += 1;
+    result >>= 1;
+    result <<= 1;
+    result ^= 1;
+    result |= 1;
+    result &= 1;
+    result += 1;
+    result -= 1;
+    result /= 1;
+    result %= 1;
+    result *= 0;
+    return unsigned_assignment_operators(result);
+}
+
+not_pointer = fn () s32
+{
+    >a: s32 = 0;
+    >ptr = &a;
+    >b = !ptr;
+    return #extend(b);
+}
+
+BasicBitField = bits u8
+{
+    a: u2,
+    b: u2,
+    c: u2,
+    d: u2,
+}
+
+basic_bits = fn () void
+{
+    >bf: BasicBitField = {
+        .a = 3,
+        .b = 2,
+        .c = 2,
+        .d = 3,
+    };
+
+    require(bf.a == 3);
+    require(bf.b == 2);
+    require(bf.c == 2);
+    require(bf.d == 3);
+}
+
+BitsNoBackingType = bits
+{
+    a: u1,
+    b: u1,
+}
+
+bits_no_backing_type = fn () void
+{
+    >bf: BitsNoBackingType = {
+        .a = 1,
+        .b = 1,
+    };
+
+    require(bf.a == 1);
+    require(bf.b == 1);
+}
+
+BitsU1 = bits u32
+{
+    a: u1,
+    b: u1,
+    c: u1,
+}
+
+bits_return_u1_function = fn () u1
+{
+    >b1: BitsU1 = {
+        .a = 1,
+        .b = 1,
+        .c = 0,
+    };
+
+    return b1.c;
+}
+
+bits_return_u1 = fn () void
+{
+    >b1 = bits_return_u1_function();
+    require(b1 == 0);
+}
+
+BitsZero = bits
+{
+    a: u1,
+    b: u1,
+    c: u1,
+}
+
+bits_zero = fn () void
+{
+    >a_bz: BitsZero = zero;
+
+    require(a_bz.a == 0);
+    require(a_bz.b == 0);
+    require(a_bz.c == 0);
+
+    >b_bz: BitsZero = {
+        .a = 1,
+        .b = 1,
+        zero,
+    };
+
+    require(b_bz.a == 1);
+    require(b_bz.b == 1);
+    require(b_bz.c == 0);
+}
+
+basic_comparison_trivial = fn (a: s32, b: s32) u1
+{
+    return a + 1 == b + 1;
+}
+
+basic_comparison = fn (argument_count: s32) void
+{
+    require(basic_comparison_trivial(argument_count, argument_count));
+}
+
+BasicGlobalStruct = struct
+{
+    a: u32,
+    b: u32,
+    c: u32,
+}
+
+basic_global_struct_variable: BasicGlobalStruct = {
+    .a = 1,
+    .b = 2,
+    .c = 3,
+};
+
+basic_global_struct = fn () void
+{
+    require(basic_global_struct_variable.a == 1);
+    require(basic_global_struct_variable.b == 2);
+    require(basic_global_struct_variable.c == 3);
+}
+
+if_no_else = fn () s32
+{
+    >a: s32 = 5;
+    if (a == 2)
+    {
+        return 1;
+    }
+
+    return 0;
+}
+
+if_no_else_void = fn () void
+{
+    >result: s32 = 0;
+    if (result != 0)
+    {
+        #trap();
+    }
+}
+
+Indirect = struct
+{
+    a: u32,
+    b: u32,
+    c: u32,
+    d: u32,
+    e: u32,
+    f: u32,
+}
+
+indirect_ret = fn [cc(c)] () Indirect
+{
+    return { .a = 56, .b = 57, .c = 58, .d = 59, .e = 60, .f = 61 };
+}
+
+indirect_arg = fn [cc(c)] (s: Indirect) void
+{
+    require(s.a == 56);
+    require(s.b == 57);
+    require(s.c == 58);
+    require(s.d == 59);
+    require(s.e == 60);
+    require(s.f == 61);
+}
+
+basic_indirect = fn () void
+{
+    >s = indirect_ret();
+    require(s.a == 56);
+    require(s.b == 57);
+    require(s.c == 58);
+    require(s.d == 59);
+    require(s.e == 60);
+    require(s.f == 61);
+    indirect_arg(s);
+}
+
+IndirectVarArgs = struct
+{
+    a: u64,
+    b: u64,
+    c: u64,
+    d: u64,
+    e: u64
+    f: u64,
+    g: u64,
+    h: u64,
+    i: u64,
+    j: u64
+}
+
+indirect_varargs_function = fn [cc(c)] (first_arg: u32, ...) void
+{
+    if (first_arg != 123456789)
+    {
+        #trap();
+    }
+
+    >va = #va_start();
+
+    >s = #va_arg(&va, IndirectVarArgs);
+    require(s.a == 9);
+    require(s.b == 8);
+    require(s.c == 7);
+    require(s.d == 6);
+    require(s.e == 5);
+    require(s.f == 4);
+    require(s.g == 3);
+    require(s.h == 2);
+    require(s.i == 1);
+    require(s.j == 0);
+}
+
+indirect_varargs = fn () void
+{
+    >first_arg: u32 = 123456789;
+    >s: IndirectVarArgs = {
+        .a = 9,
+        .b = 8,
+        .c = 7,
+        .d = 6,
+        .e = 5,
+        .f = 4,
+        .g = 3,
+        .h = 2,
+        .i = 1,
+        .j = 0,
+    };
+    indirect_varargs_function(first_arg, s);
+}
+
+return_type_builtin = fn () s32
+{
+    >result: #ReturnType = 0;
+    return result;
+}
+
+Struct_u64_u64 = struct
+{
+    a: u64,
+    b: u64,
+}
+
+return_struct_u64_u64_function = fn [cc(c)] () Struct_u64_u64
+{
+    return { .a = 1, .b = 2 };
+}
+
+return_struct_u64_u64 = fn [cc(c)] () s32
+{
+    >r = return_struct_u64_u64_function();
+    return #truncate(r.a + r.b - 3);
+}
+
+select = fn () s32
+{
+    >boolean: u1 = 1;
+    >left: s32 = 0;
+    >right: s32 = 1;
+    return #select(boolean, left, right);
+}
+
+slice2 = fn (argc: s32, argv: &&u8) void
+{
+    require(argc != 0);
+    >arg_ptr = argv[0];
+    >a1 = arg_ptr[0..c_string_length(arg_ptr)];
+    >a2 = a1[1..];
+
+    require(a1.pointer == a2.pointer - 1);
+    require(a1.length == a2.length + 1);
+}
+
+[export] main = fn [cc(c)] (argc: s32, argv: &&u8, envp: &&u8) s32
+{
+    >rc = return_constant();
+    require(rc == 0);
+
+    >const_add = constant_add();
+    require(const_add == 0);
+
+    >const_and = constant_and();
+    require(const_and == 0);
+
+    >const_div = constant_div();
+    require(const_div == 0);
+
+    >const_mul = constant_mul();
+    require(const_mul == 0);
+
+    >const_rem = constant_rem();
+    require(const_rem == 0);
+
+    >const_or = constant_or();
+    require(const_or == 0);
+
+    >const_sub = constant_sub();
+    require(const_sub == 0);
+
+    >const_xor = constant_xor();
+    require(const_xor == 0);
+
+    >const_shift_left = constant_shift_left();
+    require(const_shift_left == 0);
+
+    >const_shift_right = constant_shift_right();
+    require(const_shift_right == 0);
+
+    >min_stack = minimal_stack();
+    require(min_stack == 0);
+
+    >min_stack_arithmetic0 = minimal_stack_arithmetic0(); 
+    require(min_stack_arithmetic0 == 0);
+
+    >min_stack_arithmetic1 = minimal_stack_arithmetic1(); 
+    require(min_stack_arithmetic1 == 0);
+
+    >min_stack_arithmetic2 = minimal_stack_arithmetic2(); 
+    require(min_stack_arithmetic2 == 0);
+
+    >st_neg = stack_negation();
+    require(st_neg == 0);
+
+    >st_add = stack_add();
+    require(st_add == 0);
+
+    >st_sub = stack_sub();
+    require(st_sub == 0);
+
+    >ext = extend();
+    require(ext == 0);
+
+    >int_max = integer_max();
+    require(int_max == 0);
+
+    >int_hex = integer_hex();
+    require(int_hex == 0);
+
+    >b_pointer = basic_pointer();
+    require(b_pointer == 0);
+
+    >b_call = basic_call();
+    require(b_call == 0);
+
+    >b_branch = basic_branch();
+    require(b_branch == 0);
+
+    >b_array = basic_array();
+    require(b_array == 0);
+
+    >b_enum = basic_enum();
+    require(b_enum == 0);
+
+    basic_slice();
+
+    basic_string();
+
+    basic_varargs();
+
+    basic_while(argc, argv);
+
+    >p = pointer();
+    require(p == 0);
+
+    >pc = pointer_cast();
+    require(pc == 0);
+
+    >u1_ret = u1_return();
+    require(u1_ret == 0);
+
+    >lti = local_type_inference();
+    require(lti == 0);
+
+    >bg = basic_global();
+    require(bg == 0);
+
+    >bfp = basic_function_pointer();
+    require(bfp == 0);
+
+    basic_extern();
+
+    basic_byte_size();
+
+    >assignment_ops = assignment_operators();
+    require(assignment_ops == 0);
+
+    >np = not_pointer();
+    require(np == 0);
+
+    basic_bits();
+
+    bits_no_backing_type();
+
+    bits_return_u1();
+
+    bits_zero();
+
+    basic_comparison(argc);
+
+    basic_global_struct();
+
+    >if_ne = if_no_else();
+    require(if_ne == 0);
+
+    if_no_else_void();
+
+    basic_indirect();
+
+    indirect_varargs();
+
+    >rtb = return_type_builtin();
+    require(rtb == 0);
+
+    >rs6464 = return_struct_u64_u64();
+    require(rs6464 == 0);
+
+    >sel = select();
+    require(sel == 0);
+
+    slice2(argc, argv);
+
+    return 0;
+}