Struct Source 

pub struct Source {
    pub map: SourceMap,
    pub root: FileId,
    pub mode: InputMode,
    /* private fields */
}

The captured macro input: a SourceMap plus the id of the root file.

Fields

map: SourceMap

All source files seen so far.

root: FileId

The file holding the macro’s own C text.

mode: InputMode

How the root file was captured.

Implementations

impl Source

pub fn unit_id(&self) -> u64

A number that identifies this macro invocation.

Two c99! blocks in one Rust module generate items into the same namespace, so every synthetic name — the module holding the extern block, the mangling of a function-local static, the name given to an anonymous struct — has to carry something that tells the two apart. This is that something: a hash of where the invocation is (its file, line and column) together with its text, which makes it deterministic across compilations of the same code, unique between invocations, and stable enough for a snapshot test to record.

impl Source

pub fn text(&self) -> &str

The root file’s C text.

pub fn base(&self) -> Pos

The global offset of the root file’s first byte.

pub fn root_range(&self) -> SourceRange

The range covering the whole root file.