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Merge pull request #4864 from roc-lang/str-concat-non-unique-first-argument

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str concat non unique first argument
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Ayaz 2023-01-08 19:38:34 -06:00 • committed by GitHub
commit b1431ebea2
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1 changed files with 14 additions and 6 deletions
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20
crates/compiler/builtins/bitcode/src/str.zig
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@ -90,13 +90,13 @@ pub const RocStr = extern struct {
}
pub fn deinit(self: RocStr) void {
if (!self.isSmallStr()) {
utils.decref(self.str_bytes, self.str_len, RocStr.alignment);
}
self.decref();
}
fn decref(self: RocStr) void {
self.deinit();
if (!self.isSmallStr()) {
utils.decref(self.str_bytes, self.str_capacity, RocStr.alignment);
}
}
pub fn eq(self: RocStr, other: RocStr) bool {
@ -204,7 +204,7 @@ pub const RocStr = extern struct {
@memcpy(dest_ptr, source_ptr, old_length);
@memset(dest_ptr + old_length, 0, delta_length);
self.deinit();
self.decref();
return result;
}
@ -320,8 +320,16 @@ pub const RocStr = extern struct {
}
fn isRefcountOne(self: RocStr) bool {
return self.refcountMachine() == utils.REFCOUNT_ONE;
}
fn refcountMachine(self: RocStr) usize {
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.str_bytes));
return (ptr - 1)[0] == utils.REFCOUNT_ONE;
return (ptr - 1)[0];
}
fn refcountHuman(self: RocStr) usize {
return self.refcountMachine() - utils.REFCOUNT_ONE + 1;
}
pub fn asSlice(self: *const RocStr) []const u8 {