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Store deprecated status of i/u-suffixed literals.

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Huon Wilson 2015-01-08 20:13:14 +11:00 • committed by Niko Matsakis
parent 2f99a41fe1
commit e95779554e
18 changed files with 112 additions and 79 deletions
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16
src/libsyntax/ast_util.rs
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@ -127,8 +127,10 @@ pub fn is_path(e: P<Expr>) -> bool {
/// We want to avoid "45int" and "-3int" in favor of "45" and "-3"
pub fn int_ty_to_string(t: IntTy, val: Option<i64>) -> String {
let s = match t {
TyIs if val.is_some() => "is",
TyIs => "isize",
TyIs(true) if val.is_some() => "i",
TyIs(true) => "int",
TyIs(false) if val.is_some() => "is",
TyIs(false) => "isize",
TyI8 => "i8",
TyI16 => "i16",
TyI32 => "i32",
@ -148,7 +150,7 @@ pub fn int_ty_max(t: IntTy) -> u64 {
match t {
TyI8 => 0x80u64,
TyI16 => 0x8000u64,
TyIs | TyI32 => 0x80000000u64, // actually ni about TyIs
TyIs(_) | TyI32 => 0x80000000u64, // actually ni about TyIs
TyI64 => 0x8000000000000000u64
}
}
@ -157,8 +159,10 @@ pub fn int_ty_max(t: IntTy) -> u64 {
/// We want to avoid "42uint" in favor of "42u"
pub fn uint_ty_to_string(t: UintTy, val: Option<u64>) -> String {
let s = match t {
TyUs if val.is_some() => "us",
TyUs => "usize",
TyUs(true) if val.is_some() => "u",
TyUs(true) => "uint",
TyUs(false) if val.is_some() => "us",
TyUs(false) => "usize",
TyU8 => "u8",
TyU16 => "u16",
TyU32 => "u32",
@ -175,7 +179,7 @@ pub fn uint_ty_max(t: UintTy) -> u64 {
match t {
TyU8 => 0xffu64,
TyU16 => 0xffffu64,
TyUs | TyU32 => 0xffffffffu64, // actually ni about TyUs
TyUs(_) | TyU32 => 0xffffffffu64, // actually ni about TyUs
TyU64 => 0xffffffffffffffffu64
}
}