image_info.rs - mozsearch

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#[repr(C)]

#[doc(hidden)]

#[derive(Debug, Clone, Copy)]

pub struct ImageInfo {

    // These are not actually `unsigned int`, even though the docs say so

    /// The version of the image info struct.

    version: u32,

    flags: u32,

#[allow(unused)]

impl ImageInfo {

    /// Unused

    const FIX_AND_CONTINUE: u32 = 1 << 0;

    const SUPPORTS_GARBAGE_COLLECTED: u32 = 1 << 1;

    const REQUIRES_GARBAGE_COLLECTION: u32 = 1 << 2;

    const OPTIMIZED_BY_DYLD: u32 = 1 << 3; // TODO

    /// Unused

    const CORRECTED_SYNTHESIZE: u32 = 1 << 4;

    /// Whether we're compiling this to run on a simulator.

    const IMAGE_IS_SIMULATED: u32 = 1 << 5;

    /// Whether we are generating class properties.

    const CLASS_PROPERTIES: u32 = 1 << 6;

    const DYLD_PREOPTIMIZED: u32 = 1 << 7;

    const SWIFT_ABI_VERSION_SHIFT: u32 = 8;

    const SWIFT_ABI_VERSION_MASK: u32 = 0xff << Self::SWIFT_ABI_VERSION_SHIFT;

    const SWIFT_MINOR_VERSION_SHIFT: u32 = 16;

    const SWIFT_MINOR_VERSION_MASK: u32 = 0xff << Self::SWIFT_MINOR_VERSION_SHIFT;

    const SWIFT_MAJOR_VERSION_SHIFT: u32 = 24;

    const SWIFT_MAJOR_VERSION_MASK: u32 = 0xff << Self::SWIFT_MAJOR_VERSION_SHIFT;

    /// Fetches the image info for the current runtime + target combination

    #[inline]

    pub const fn system() -> Self {

        // We don't currently do anything relating to class properties, but

        // let's mimic what Clang does!

        let mut flags = Self::CLASS_PROPERTIES;

        if cfg!(target_simulator) {

            flags |= Self::IMAGE_IS_SIMULATED;

        Self { version: 0, flags }