rust/src/librustc_codegen_llvm/interfaces/consts.rs

// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use super::Backend;
use syntax::symbol::LocalInternedString;

pub trait ConstMethods<'tcx>: Backend<'tcx> {
    // Constant constructors
    fn const_null(&self, t: Self::Type) -> Self::Value;
    fn const_undef(&self, t: Self::Type) -> Self::Value;
    fn const_int(&self, t: Self::Type, i: i64) -> Self::Value;
    fn const_uint(&self, t: Self::Type, i: u64) -> Self::Value;
    fn const_uint_big(&self, t: Self::Type, u: u128) -> Self::Value;
    fn const_bool(&self, val: bool) -> Self::Value;
    fn const_i32(&self, i: i32) -> Self::Value;
    fn const_u32(&self, i: u32) -> Self::Value;
    fn const_u64(&self, i: u64) -> Self::Value;
    fn const_usize(&self, i: u64) -> Self::Value;
    fn const_u8(&self, i: u8) -> Self::Value;
    fn const_cstr(&self, s: LocalInternedString, null_terminated: bool) -> Self::Value;
    fn const_str_slice(&self, s: LocalInternedString) -> Self::Value;
    fn const_fat_ptr(&self, ptr: Self::Value, meta: Self::Value) -> Self::Value;
    fn const_struct(&self, elts: &[Self::Value], packed: bool) -> Self::Value;
    fn const_array(&self, ty: Self::Type, elts: &[Self::Value]) -> Self::Value;
    fn const_vector(&self, elts: &[Self::Value]) -> Self::Value;
    fn const_bytes(&self, bytes: &[u8]) -> Self::Value;

    fn const_get_elt(&self, v: Self::Value, idx: u64) -> Self::Value;
    fn const_get_real(&self, v: Self::Value) -> Option<(f64, bool)>;
    fn const_to_uint(&self, v: Self::Value) -> u64;
    fn const_to_opt_u128(&self, v: Self::Value, sign_ext: bool) -> Option<u128>;

    fn is_const_integral(&self, v: Self::Value) -> bool;
    fn is_const_real(&self, v: Self::Value) -> bool;
}