/src/fontations/read-fonts/generated/generated_meta.rs

Source
// THIS FILE IS AUTOGENERATED.
// Any changes to this file will be overwritten.
// For more information about how codegen works, see font-codegen/README.md

#[allow(unused_imports)]
use crate::codegen_prelude::*;

impl<'a> MinByteRange<'a> for Meta<'a> {
    fn min_byte_range(&self) -> Range<usize> {
        0..self.data_maps_byte_range().end
    }
    fn min_table_bytes(&self) -> &'a [u8] {
        let range = self.min_byte_range();
        self.data.as_bytes().get(range).unwrap_or_default()
    }
}

impl TopLevelTable for Meta<'_> {
    /// `meta`
    const TAG: Tag = Tag::new(b"meta");
}

impl ReadArgs for Meta<'_> {
    type Args = ();
}

impl<'a> FontRead<'a> for Meta<'a> {
    fn read_with_args(data: FontData<'a>, _: ()) -> Result<Self, ReadError> {
        #[allow(clippy::absurd_extreme_comparisons)]
        if data.len() < Self::MIN_SIZE {
            return Err(ReadError::OutOfBounds);
        }
        Ok(Self { data })
    }
}

/// [`meta`](https://docs.microsoft.com/en-us/typography/opentype/spec/meta)
#[derive(Clone)]
pub struct Meta<'a> {
    data: FontData<'a>,
}

#[allow(clippy::needless_lifetimes)]
impl<'a> Meta<'a> {
    pub const MIN_SIZE: usize =
        (u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN);
    basic_table_impls!(impl_the_methods);

    /// Version number of the metadata table — set to 1.
    pub fn version(&self) -> u32 {
        let range = self.version_byte_range();
        self.data.read_at(range.start).ok().unwrap()
    }

    /// Flags — currently unused; set to 0.
    pub fn flags(&self) -> u32 {
        let range = self.flags_byte_range();
        self.data.read_at(range.start).ok().unwrap()
    }

    /// The number of data maps in the table.
    pub fn data_maps_count(&self) -> u32 {
        let range = self.data_maps_count_byte_range();
        self.data.read_at(range.start).ok().unwrap()
    }

    /// Array of data map records.
    pub fn data_maps(&self) -> &'a [DataMapRecord] {
        let range = self.data_maps_byte_range();
        self.data.read_array(range).ok().unwrap_or_default()
    }

    pub fn version_byte_range(&self) -> Range<usize> {
        let start = 0;
        let end = start + u32::RAW_BYTE_LEN;
        start..end
    }

    pub fn flags_byte_range(&self) -> Range<usize> {
        let start = self.version_byte_range().end;
        let end = start + u32::RAW_BYTE_LEN;
        start..end
    }

    pub fn reserved_byte_range(&self) -> Range<usize> {
        let start = self.flags_byte_range().end;
        let end = start + u32::RAW_BYTE_LEN;
        start..end
    }

    pub fn data_maps_count_byte_range(&self) -> Range<usize> {
        let start = self.reserved_byte_range().end;
        let end = start + u32::RAW_BYTE_LEN;
        start..end
    }

    pub fn data_maps_byte_range(&self) -> Range<usize> {
        let data_maps_count = self.data_maps_count();
        let start = self.data_maps_count_byte_range().end;
        let end = start
            + (transforms::to_usize(data_maps_count)).saturating_mul(DataMapRecord::RAW_BYTE_LEN);
        start..end
    }
}

const _: () = assert!(FontData::default_data_long_enough(Meta::MIN_SIZE));

impl Default for Meta<'_> {
    fn default() -> Self {
        Self {
            data: FontData::default_table_data(),
        }
    }
}

#[cfg(feature = "experimental_traverse")]
impl<'a> SomeTable<'a> for Meta<'a> {
    fn type_name(&self) -> &str {
        "Meta"
    }
    fn get_field(&self, idx: usize) -> Option<Field<'a>> {
        match idx {
            0usize => Some(Field::new("version", self.version())),
            1usize => Some(Field::new("flags", self.flags())),
            2usize => Some(Field::new("data_maps_count", self.data_maps_count())),
            3usize => Some(Field::new(
                "data_maps",
                traversal::FieldType::array_of_records(
                    stringify!(DataMapRecord),
                    self.data_maps(),
                    self.offset_data(),
                ),
            )),
            _ => None,
        }
    }
}

#[cfg(feature = "experimental_traverse")]
#[allow(clippy::needless_lifetimes)]
impl<'a> std::fmt::Debug for Meta<'a> {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        (self as &dyn SomeTable<'a>).fmt(f)
    }
}

///  <https://learn.microsoft.com/en-us/typography/opentype/spec/meta#table-formats>
#[derive(Clone, Debug, Copy, bytemuck :: AnyBitPattern)]
#[repr(C)]
#[repr(packed)]
pub struct DataMapRecord {
    /// A tag indicating the type of metadata.
    pub tag: BigEndian<Tag>,
    /// Offset in bytes from the beginning of the metadata table to the data for this tag.
    pub data_offset: BigEndian<Offset32>,
    /// Length of the data, in bytes. The data is not required to be padded to any byte boundary.
    pub data_length: BigEndian<u32>,
}

impl DataMapRecord {
    /// A tag indicating the type of metadata.
    pub fn tag(&self) -> Tag {
        self.tag.get()
    }

    /// Offset in bytes from the beginning of the metadata table to the data for this tag.
    pub fn data_offset(&self) -> Offset32 {
        self.data_offset.get()
    }

    /// Offset in bytes from the beginning of the metadata table to the data for this tag.
    ///
    /// The `data` argument should be retrieved from the parent table
    /// By calling its `offset_data` method.
    pub fn data<'a>(&self, data: FontData<'a>) -> Result<Metadata<'a>, ReadError> {
        let args = (self.tag(), self.data_length());
        self.data_offset().resolve_with_args(data, args)
    }

    /// Length of the data, in bytes. The data is not required to be padded to any byte boundary.
    pub fn data_length(&self) -> u32 {
        self.data_length.get()
    }
}

impl FixedSize for DataMapRecord {
    const RAW_BYTE_LEN: usize = Tag::RAW_BYTE_LEN + Offset32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN;
}

#[cfg(feature = "experimental_traverse")]
impl<'a> SomeRecord<'a> for DataMapRecord {
    fn traverse(self, data: FontData<'a>) -> RecordResolver<'a> {
        RecordResolver {
            name: "DataMapRecord",
            get_field: Box::new(move |idx, _data| match idx {
                0usize => Some(Field::new("tag", self.tag())),
                1usize => Some(Field::new("data_offset", traversal::FieldType::Unknown)),
                2usize => Some(Field::new("data_length", self.data_length())),
                _ => None,
            }),
            data,
        }
    }
}

Coverage Report

Created: 2026-08-11 07:19

Line	Count	Source
1		// THIS FILE IS AUTOGENERATED.
2		// Any changes to this file will be overwritten.
3		// For more information about how codegen works, see font-codegen/README.md
4
5		#[allow(unused_imports)]
6		use crate::codegen_prelude::*;
7
8		impl<'a> MinByteRange<'a> for Meta<'a> {
9	0	fn min_byte_range(&self) -> Range<usize> {
10	0	0..self.data_maps_byte_range().end
11	0	}
12	0	fn min_table_bytes(&self) -> &'a [u8] {
13	0	let range = self.min_byte_range();
14	0	self.data.as_bytes().get(range).unwrap_or_default()
15	0	}
16		}
17
18		impl TopLevelTable for Meta<'_> {
19		/// `meta`
20		const TAG: Tag = Tag::new(b"meta");
21		}
22
23		impl ReadArgs for Meta<'_> {
24		type Args = ();
25		}
26
27		impl<'a> FontRead<'a> for Meta<'a> {
28	0	fn read_with_args(data: FontData<'a>, _: ()) -> Result<Self, ReadError> {
29		#[allow(clippy::absurd_extreme_comparisons)]
30	0	if data.len() < Self::MIN_SIZE {
31	0	return Err(ReadError::OutOfBounds);
32	0	}
33	0	Ok(Self { data })
34	0	}
35		}
36
37		/// [`meta`](https://docs.microsoft.com/en-us/typography/opentype/spec/meta)
38		#[derive(Clone)]
39		pub struct Meta<'a> {
40		data: FontData<'a>,
41		}
42
43		#[allow(clippy::needless_lifetimes)]
44		impl<'a> Meta<'a> {
45		pub const MIN_SIZE: usize =
46		(u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN);
47		basic_table_impls!(impl_the_methods);
48
49		/// Version number of the metadata table — set to 1.
50	0	pub fn version(&self) -> u32 {
51	0	let range = self.version_byte_range();
52	0	self.data.read_at(range.start).ok().unwrap()
53	0	}
54
55		/// Flags — currently unused; set to 0.
56	0	pub fn flags(&self) -> u32 {
57	0	let range = self.flags_byte_range();
58	0	self.data.read_at(range.start).ok().unwrap()
59	0	}
60
61		/// The number of data maps in the table.
62	0	pub fn data_maps_count(&self) -> u32 {
63	0	let range = self.data_maps_count_byte_range();
64	0	self.data.read_at(range.start).ok().unwrap()
65	0	}
66
67		/// Array of data map records.
68	0	pub fn data_maps(&self) -> &'a [DataMapRecord] {
69	0	let range = self.data_maps_byte_range();
70	0	self.data.read_array(range).ok().unwrap_or_default()
71	0	}
72
73	0	pub fn version_byte_range(&self) -> Range<usize> {
74	0	let start = 0;
75	0	let end = start + u32::RAW_BYTE_LEN;
76	0	start..end
77	0	}
78
79	0	pub fn flags_byte_range(&self) -> Range<usize> {
80	0	let start = self.version_byte_range().end;
81	0	let end = start + u32::RAW_BYTE_LEN;
82	0	start..end
83	0	}
84
85	0	pub fn reserved_byte_range(&self) -> Range<usize> {
86	0	let start = self.flags_byte_range().end;
87	0	let end = start + u32::RAW_BYTE_LEN;
88	0	start..end
89	0	}
90
91	0	pub fn data_maps_count_byte_range(&self) -> Range<usize> {
92	0	let start = self.reserved_byte_range().end;
93	0	let end = start + u32::RAW_BYTE_LEN;
94	0	start..end
95	0	}
96
97	0	pub fn data_maps_byte_range(&self) -> Range<usize> {
98	0	let data_maps_count = self.data_maps_count();
99	0	let start = self.data_maps_count_byte_range().end;
100	0	let end = start
101	0	+ (transforms::to_usize(data_maps_count)).saturating_mul(DataMapRecord::RAW_BYTE_LEN);
102	0	start..end
103	0	}
104		}
105
106		const _: () = assert!(FontData::default_data_long_enough(Meta::MIN_SIZE));
107
108		impl Default for Meta<'_> {
109	0	fn default() -> Self {
110	0	Self {
111	0	data: FontData::default_table_data(),
112	0	}
113	0	}
114		}
115
116		#[cfg(feature = "experimental_traverse")]
117		impl<'a> SomeTable<'a> for Meta<'a> {
118		fn type_name(&self) -> &str {
119		"Meta"
120		}
121		fn get_field(&self, idx: usize) -> Option<Field<'a>> {
122		match idx {
123		0usize => Some(Field::new("version", self.version())),
124		1usize => Some(Field::new("flags", self.flags())),
125		2usize => Some(Field::new("data_maps_count", self.data_maps_count())),
126		3usize => Some(Field::new(
127		"data_maps",
128		traversal::FieldType::array_of_records(
129		stringify!(DataMapRecord),
130		self.data_maps(),
131		self.offset_data(),
132		),
133		)),
134		_ => None,
135		}
136		}
137		}
138
139		#[cfg(feature = "experimental_traverse")]
140		#[allow(clippy::needless_lifetimes)]
141		impl<'a> std::fmt::Debug for Meta<'a> {
142		fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
143		(self as &dyn SomeTable<'a>).fmt(f)
144		}
145		}
146
147		/// <https://learn.microsoft.com/en-us/typography/opentype/spec/meta#table-formats>
148		#[derive(Clone, Debug, Copy, bytemuck :: AnyBitPattern)]
149		#[repr(C)]
150		#[repr(packed)]
151		pub struct DataMapRecord {
152		/// A tag indicating the type of metadata.
153		pub tag: BigEndian<Tag>,
154		/// Offset in bytes from the beginning of the metadata table to the data for this tag.
155		pub data_offset: BigEndian<Offset32>,
156		/// Length of the data, in bytes. The data is not required to be padded to any byte boundary.
157		pub data_length: BigEndian<u32>,
158		}
159
160		impl DataMapRecord {
161		/// A tag indicating the type of metadata.
162	0	pub fn tag(&self) -> Tag {
163	0	self.tag.get()
164	0	}
165
166		/// Offset in bytes from the beginning of the metadata table to the data for this tag.
167	0	pub fn data_offset(&self) -> Offset32 {
168	0	self.data_offset.get()
169	0	}
170
171		/// Offset in bytes from the beginning of the metadata table to the data for this tag.
172		///
173		/// The `data` argument should be retrieved from the parent table
174		/// By calling its `offset_data` method.
175	0	pub fn data<'a>(&self, data: FontData<'a>) -> Result<Metadata<'a>, ReadError> {
176	0	let args = (self.tag(), self.data_length());
177	0	self.data_offset().resolve_with_args(data, args)
178	0	}
179
180		/// Length of the data, in bytes. The data is not required to be padded to any byte boundary.
181	0	pub fn data_length(&self) -> u32 {
182	0	self.data_length.get()
183	0	}
184		}
185
186		impl FixedSize for DataMapRecord {
187		const RAW_BYTE_LEN: usize = Tag::RAW_BYTE_LEN + Offset32::RAW_BYTE_LEN + u32::RAW_BYTE_LEN;
188		}
189
190		#[cfg(feature = "experimental_traverse")]
191		impl<'a> SomeRecord<'a> for DataMapRecord {
192		fn traverse(self, data: FontData<'a>) -> RecordResolver<'a> {
193		RecordResolver {
194		name: "DataMapRecord",
195		get_field: Box::new(move \|idx, _data\| match idx {
196		0usize => Some(Field::new("tag", self.tag())),
197		1usize => Some(Field::new("data_offset", traversal::FieldType::Unknown)),
198		2usize => Some(Field::new("data_length", self.data_length())),
199		_ => None,
200		}),
201		data,
202		}
203		}
204		}