pd-vm 0.22.6

RustScript bytecode compiler and VM
Documentation 
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#[cfg(feature = "cranelift-jit")]
use cranelift_codegen::ir::{AbiParam, Block, BlockArg, InstBuilder, Signature, types};
#[cfg(feature = "cranelift-jit")]
use cranelift_frontend::FunctionBuilder;

#[cfg(feature = "cranelift-jit")]
pub(crate) fn jump_with_status(
    b: &mut FunctionBuilder,
    block: Block,
    status: cranelift_codegen::ir::Value,
) {
    b.ins().jump(block, &[BlockArg::Value(status)]);
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn helper_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(types::I64));
    sig.params.push(AbiParam::new(types::I64));
    sig.params.push(AbiParam::new(types::I64));
    sig.params.push(AbiParam::new(types::I64));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn alloc_buffer_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(pointer_type));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn free_buffer_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn pack_shared_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(pointer_type));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn copy_bytes_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn clone_value_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn collection_predicate_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn collection_get_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn value_slot_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn value_eq_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn box_heap_value_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(types::I64));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn restore_exit_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}

#[cfg(feature = "cranelift-jit")]
pub(crate) fn entry_signature(
    pointer_type: cranelift_codegen::ir::Type,
    call_conv: cranelift_codegen::isa::CallConv,
) -> Signature {
    let mut sig = Signature::new(call_conv);
    sig.params.push(AbiParam::new(pointer_type));
    sig.returns.push(AbiParam::new(types::I32));
    sig
}