toml/ser/document/
array.rs

1use core::fmt::Write as _;
2
3use toml_writer::TomlWrite as _;
4
5use super::style::Style;
6use super::value::ValueSerializer;
7use super::Buffer;
8use super::Error;
9use super::Table;
10
11#[doc(hidden)]
12pub struct SerializeDocumentTupleVariant<'d> {
13    buf: &'d mut Buffer,
14    table: Table,
15    seen_value: bool,
16    style: Style,
17}
18
19impl<'d> SerializeDocumentTupleVariant<'d> {
20    pub(crate) fn tuple(
21        buf: &'d mut Buffer,
22        mut table: Table,
23        variant: &'static str,
24        _len: usize,
25        style: Style,
26    ) -> Result<Self, Error> {
27        let dst = table.body_mut();
28        dst.key(variant)?;
29        dst.space()?;
30        dst.keyval_sep()?;
31        dst.space()?;
32        dst.open_array()?;
33        Ok(Self {
34            buf,
35            table,
36            seen_value: false,
37            style,
38        })
39    }
40}
41
42impl<'d> serde::ser::SerializeTupleVariant for SerializeDocumentTupleVariant<'d> {
43    type Ok = &'d mut Buffer;
44    type Error = Error;
45
46    fn serialize_field<T>(&mut self, value: &T) -> Result<(), Error>
47    where
48        T: serde::ser::Serialize + ?Sized,
49    {
50        let dst = self.table.body_mut();
51
52        if self.style.multiline_array {
53            dst.newline()?;
54            write!(dst, "    ")?;
55        } else {
56            if self.seen_value {
57                dst.val_sep()?;
58                dst.space()?;
59            }
60        }
61        self.seen_value = true;
62        value.serialize(ValueSerializer::with_style(dst, self.style))?;
63        if self.style.multiline_array {
64            dst.val_sep()?;
65        }
66        Ok(())
67    }
68
69    fn end(mut self) -> Result<Self::Ok, Self::Error> {
70        let dst = self.table.body_mut();
71        if self.style.multiline_array && self.seen_value {
72            dst.newline()?;
73        }
74        dst.close_array()?;
75        dst.newline()?;
76        self.buf.push(self.table);
77        Ok(self.buf)
78    }
79}
toml/ser/document/array.rs

toml/ser/document/
array.rs
