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Auto merge of #116619 - nnethercote:rustc_driver_impl, r=compiler-errors

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Streamline `rustc_driver_impl` pretty-printing.

This PR simplifies a lot of unnecessary structure in
`rustc_driver_impl/src/pretty.rs`. It removes some traits and functions,
simplifies some structs, renames some things for increased consistency, and
eliminates some boilerplate code. Overall it cuts more than 150 lines of code.

r? `@compiler-errors`
This commit is contained in:
bors 2023-10-13 05:35:29 +00:00
commit 2763ca50da
3 changed files with 154 additions and 309 deletions
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25
compiler/rustc_session/src/config.rs
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@ -2925,8 +2925,8 @@ fn parse_pretty(handler: &EarlyErrorHandler, unstable_opts: &UnstableOptions) ->
"expanded" => Source(PpSourceMode::Expanded),
"expanded,identified" => Source(PpSourceMode::ExpandedIdentified),
"expanded,hygiene" => Source(PpSourceMode::ExpandedHygiene),
"ast-tree" => AstTree(PpAstTreeMode::Normal),
"ast-tree,expanded" => AstTree(PpAstTreeMode::Expanded),
"ast-tree" => AstTree,
"ast-tree,expanded" => AstTreeExpanded,
"hir" => Hir(PpHirMode::Normal),
"hir,identified" => Hir(PpHirMode::Identified),
"hir,typed" => Hir(PpHirMode::Typed),
@ -3083,14 +3083,6 @@ pub enum PpSourceMode {
ExpandedHygiene,
}
#[derive(Copy, Clone, PartialEq, Debug)]
pub enum PpAstTreeMode {
/// `-Zunpretty=ast`
Normal,
/// `-Zunpretty=ast,expanded`
Expanded,
}
#[derive(Copy, Clone, PartialEq, Debug)]
pub enum PpHirMode {
/// `-Zunpretty=hir`
@ -3106,7 +3098,10 @@ pub enum PpMode {
/// Options that print the source code, i.e.
/// `-Zunpretty=normal` and `-Zunpretty=expanded`
Source(PpSourceMode),
AstTree(PpAstTreeMode),
/// `-Zunpretty=ast-tree`
AstTree,
/// `-Zunpretty=ast-tree,expanded`
AstTreeExpanded,
/// Options that print the HIR, i.e. `-Zunpretty=hir`
Hir(PpHirMode),
/// `-Zunpretty=hir-tree`
@ -3126,10 +3121,10 @@ impl PpMode {
use PpMode::*;
use PpSourceMode::*;
match *self {
Source(Normal | Identified) | AstTree(PpAstTreeMode::Normal) => false,
Source(Normal | Identified) | AstTree => false,
Source(Expanded | ExpandedIdentified | ExpandedHygiene)
| AstTree(PpAstTreeMode::Expanded)
| AstTreeExpanded
| Hir(_)
| HirTree
| ThirTree
@ -3141,7 +3136,7 @@ impl PpMode {
pub fn needs_hir(&self) -> bool {
use PpMode::*;
match *self {
Source(_) | AstTree(_) => false,
Source(_) | AstTree | AstTreeExpanded => false,
Hir(_) | HirTree | ThirTree | ThirFlat | Mir | MirCFG => true,
}
@ -3149,7 +3144,7 @@ impl PpMode {
pub fn needs_analysis(&self) -> bool {
use PpMode::*;
matches!(*self, Mir | MirCFG | ThirTree | ThirFlat)
matches!(*self, Hir(PpHirMode::Typed) | Mir | MirCFG | ThirTree | ThirFlat)
}
}