Trait Run 

pub trait Run {
    // Required methods
    fn dry_run(
        &self,
        context: &LightContext<'_>,
        source_file: &Path,
    ) -> Result<()>;
    fn instrument_source_file(
        &self,
        context: &LightContext<'_>,
        rewriter: &mut Rewriter<'_>,
        source_file: &SourceFile,
        n_instrumentable_statements: usize,
    ) -> Result<()>;
    fn statement_prefix_and_suffix(
        &self,
        span: &Span,
    ) -> Result<(String, String)>;
    fn build_source_file(
        &self,
        context: &LightContext<'_>,
        source_file: &Path,
    ) -> Result<()>;
    fn exec(
        &self,
        context: &LightContext<'_>,
        test_name: &str,
        span: &Span,
    ) -> Result<Result<(Exec, Option<Box<Postprocess>>)>>;
}

Required Methods

fn dry_run(&self, context: &LightContext<'_>, source_file: &Path) -> Result<()>

fn instrument_source_file( &self, context: &LightContext<'_>, rewriter: &mut Rewriter<'_>, source_file: &SourceFile, n_instrumentable_statements: usize, ) -> Result<()>

fn statement_prefix_and_suffix(&self, span: &Span) -> Result<(String, String)>

fn build_source_file( &self, context: &LightContext<'_>, source_file: &Path, ) -> Result<()>

fn exec( &self, context: &LightContext<'_>, test_name: &str, span: &Span, ) -> Result<Result<(Exec, Option<Box<Postprocess>>)>>

Execute test test_name with span removed. Returns Ok(None) if the test could not be built.

In most cases, just span.source_file is used. But in the implementation of RunLow::exec, span is used for error reporting.

Result<Result<..>> is a questionable return type. The inner Result represents the result of trying to build the project under test. Having it is useful for when the “Instrumentation failed to build after it was verified to” assertion fails.

Implementors

impl<T: AsRun> Run for T