Function parse_test

cranelift/reader/src/parser.rs:125–174

Parse the entire `text` as a test case file. The returned `TestFile` contains direct references to substrings of `text`.

(text: &'a str, options: ParseOptions<'a>)

///
/// The returned `TestFile` contains direct references to substrings of `text`.
pub fn parse_test<'a>(text: &'a str, options: ParseOptions<'a>) -> ParseResult<TestFile<'a>> {
    let _tt = timing::parse_text();
    let mut parser = Parser::new(text);

    // Gather the preamble comments.
    parser.start_gathering_comments();

    let isa_spec: isaspec::IsaSpec;
    let commands: Vec<TestCommand<'a>>;

    // Check for specified passes and target, if present throw out test commands/targets specified
    // in file.
    match options.passes {
        Some(pass_vec) => {
            parser.parse_test_commands();
            commands = parser.parse_cmdline_passes(pass_vec);
            parser.parse_target_specs(&options)?;
            isa_spec = parser.parse_cmdline_target(options.target)?;
        }
        None => {
            commands = parser.parse_test_commands();
            isa_spec = parser.parse_target_specs(&options)?;
        }
    };
    let features = parser.parse_cranelift_features()?;

    // Decide between using the calling convention passed in the options or using the
    // host's calling convention--if any tests are to be run on the host we should default to the
    // host's calling convention.
    parser = if commands.iter().any(|tc| tc.command == "run") {
        let host_default_calling_convention = CallConv::triple_default(&Triple::host());
        parser.with_default_calling_convention(host_default_calling_convention)
    } else {
        parser.with_default_calling_convention(options.default_calling_convention)
    };

    parser.token();
    parser.claim_gathered_comments(AnyEntity::Function);

    let preamble_comments = parser.take_comments();
    let functions = parser.parse_function_list()?;

    Ok(TestFile {
        commands,
        isa_spec,
        features,
        preamble_comments,
        functions,
    })
}

/// Parse a CLIF comment `text` as a run command.
///