Merge "PDL: Make `endianness_declaration` mandatory" am: f3cf5cc1d0 am:... (bad8b184) · Commits · e / os / android_packages_modules_Bluetooth

tools/pdl/src/ast.rs

+10 −5

Original line number	Diff line number	Diff line
		@@ -12,7 +12,7 @@ pub type FileId = usize;
		/// Stores the source file contents for reference.
		pub type SourceDatabase = files::SimpleFiles<String, String>;

		#[derive(Debug, Copy, Clone, Serialize, PartialEq, Eq, PartialOrd, Ord)]
		#[derive(Debug, Default, Copy, Clone, Serialize, PartialEq, Eq, PartialOrd, Ord)]
		pub struct SourceLocation {
		/// Byte offset into the file (counted from zero).
		pub offset: usize,
		@@ -22,7 +22,7 @@ pub struct SourceLocation {
		pub column: usize,
		}

		#[derive(Debug, Clone, Serialize)]
		#[derive(Debug, Default, Clone, PartialEq, Eq, Serialize)]
		pub struct SourceRange {
		pub file: FileId,
		pub start: SourceLocation,
		@@ -36,7 +36,7 @@ pub struct Comment {
		pub text: String,
		}

		#[derive(Debug, Serialize)]
		#[derive(Debug, PartialEq, Eq, Serialize)]
		#[serde(rename_all = "snake_case")]
		pub enum EndiannessValue {
		LittleEndian,
		@@ -164,7 +164,7 @@ pub struct Grammar {
		pub version: String,
		pub file: FileId,
		pub comments: Vec<Comment>,
		pub endianness: Option<Endianness>,
		pub endianness: Endianness,
		pub declarations: Vec<Decl>,
		}

		@@ -227,7 +227,12 @@ impl Grammar {
		Grammar {
		version: "1,0".to_owned(),
		comments: vec![],
		endianness: None,
		// The endianness is mandatory, so this default value will
		// be updated while parsing.
		endianness: Endianness {
		loc: SourceRange::default(),
		value: EndiannessValue::LittleEndian,
		},
		declarations: vec![],
		file,
		}

+19 −4

Original line number	Diff line number	Diff line
		@@ -130,7 +130,7 @@ declaration = _{

		grammar = {
		SOI ~
		endianness_declaration? ~
		endianness_declaration ~
		declaration* ~
		EOI
		}
		@@ -439,9 +439,7 @@ fn parse_grammar(root: Node<'_>, context: &Context) -> Result<ast::Grammar, Stri
		let loc = node.as_loc(context);
		let rule = node.as_rule();
		match rule {
		Rule::endianness_declaration => {
		grammar.endianness = Some(parse_endianness(node, context)?)
		}
		Rule::endianness_declaration => grammar.endianness = parse_endianness(node, context)?,
		Rule::checksum_declaration => {
		let mut children = node.children();
		let id = parse_identifier(&mut children)?;
		@@ -539,3 +537,20 @@ pub fn parse_file(
		})?;
		parse_inline(sources, name, source)
		}

		#[cfg(test)]
		mod test {
		use super::*;

		#[test]
		fn endianness_is_set() {
		// The grammar starts out with a placeholder little-endian
		// value. This tests that we update it while parsing.
		let mut db = ast::SourceDatabase::new();
		let grammar =
		parse_inline(&mut db, String::from("stdin"), String::from(" big_endian_packets "))
		.unwrap();
		assert_eq!(grammar.endianness.value, ast::EndiannessValue::BigEndian);
		assert_ne!(grammar.endianness.loc, ast::SourceRange::default());
		}
		}

+1 −1