/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<'a> FontRead<'a> for Meta<'a> {
    fn read(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;
        start..start + u32::RAW_BYTE_LEN
    }

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

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

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

    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;
        start..start + (data_maps_count as usize).saturating_mul(DataMapRecord::RAW_BYTE_LEN)
    }
}

#[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,
        }
    }
}

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

Coverage Report

Created: 2026-04-01 07:11