Struct Context 

pub struct Context {
    pub text: String,
    pub base: Pos,
    pub file_name: String,
    pub first_line: usize,
    pub dir: Option<PathBuf>,
    pub next_base: Pos,
    pub target_pragmas: TargetPragmas,
}

What the preprocessor needs to know about the text it is running over.

Fields

text: String

The C source text, which #error and #include <…> read back verbatim.

base: Pos

The global offset of text’s first byte.

file_name: String

What __FILE__ expands to.

first_line: usize

The line text’s own line 1 sits on; see the module docs.

dir: Option<PathBuf>

The directory an #include "…" written in this text looks in first — the directory of the invoking .rs file. None when the compiler will not say where that is.

next_base: Pos

The global offset the first #included file is placed at.

The preprocessor allocates the offsets of the files it opens, because it runs where a SourceMap cannot follow it; see crate::SourceMap::next_base.

target_pragmas: TargetPragmas

The #pragma cinrs target directives scan_target_pragma already read out of text, so that the preprocessor does not report one twice and can tell a header’s from the unit’s own.

Implementations

impl Context

pub fn new(text: impl Into<String>, base: Pos) -> Self

A context for text with nothing known about where it came from.

Trait Implementations

impl Clone for Context

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Context

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.