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Fix and clean up zig small str init

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This commit is contained in:
Chad Stearns 2020-11-15 19:24:13 -05:00
parent 4ac5d5ffd5
commit 8b0957a424
1 changed files with 12 additions and 8 deletions
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20
compiler/builtins/bitcode/src/str.zig
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@ -25,30 +25,34 @@ const RocStr = struct {
const rocStrSize = @sizeOf(RocStr);
if (len < rocStrSize) {
var empty_roc_str = RocStr.empty();
var ret_small_str = RocStr.empty();
const target_ptr = @ptrToInt(empty_roc_str.get_small_str_ptr());
const target_ptr = @ptrToInt(ret_small_str.get_small_str_ptr());
var index : u8 = 0;
// Zero out the data, just to be safe
while (index < rocStrSize) {
var offset_ptr = @intToPtr(*usize, target_ptr + index);
offset_ptr.* = 0;
index += 1;
}
index = 0;
while (index < len) {
var offset_ptr = @intToPtr(*usize, target_ptr + index);
offset_ptr.* = bytes[index];
index += 1;
}
const final_byte_ptr = @intToPtr(*usize, target_ptr + index);
final_byte_ptr.* = rocStrSize ^ 0b10000000;
empty_roc_str.str_len = target_ptr;
const final_byte_ptr = @intToPtr(*usize, target_ptr + rocStrSize - 1);
final_byte_ptr.* = len ^ 0b10000000;
return empty_roc_str;
return ret_small_str;
} else {
return RocStr {
.str_bytes_ptrs = bytes,
.str_len = len
};
}
}
pub fn eq(self: *RocStr, other: RocStr) bool {