b3a47d9b6b
This commit desugars the drop and replace deriving from an assignment at MIR build, avoiding the construction of the DropAndReplace terminator (which will be removed in a followign PR) In order to retain the same error messages for replaces a new DesugaringKind::Replace variant is introduced.
86 lines
4.7 KiB
Diff
86 lines
4.7 KiB
Diff
- // MIR for `main` before ElaborateDrops
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+ // MIR for `main` after ElaborateDrops
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fn main() -> () {
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let mut _0: (); // return place in scope 0 at $DIR/basic_assignment.rs:+0:11: +0:11
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let _1: bool; // in scope 0 at $DIR/basic_assignment.rs:+1:9: +1:17
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let mut _3: bool; // in scope 0 at $DIR/basic_assignment.rs:+6:16: +6:24
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let mut _6: std::option::Option<std::boxed::Box<u32>>; // in scope 0 at $DIR/basic_assignment.rs:+13:14: +13:20
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scope 1 {
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debug nodrop_x => _1; // in scope 1 at $DIR/basic_assignment.rs:+1:9: +1:17
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let _2: bool; // in scope 1 at $DIR/basic_assignment.rs:+2:9: +2:17
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scope 2 {
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debug nodrop_y => _2; // in scope 2 at $DIR/basic_assignment.rs:+2:9: +2:17
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let _4: std::option::Option<std::boxed::Box<u32>>; // in scope 2 at $DIR/basic_assignment.rs:+8:9: +8:15
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scope 3 {
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debug drop_x => _4; // in scope 3 at $DIR/basic_assignment.rs:+8:9: +8:15
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let _5: std::option::Option<std::boxed::Box<u32>>; // in scope 3 at $DIR/basic_assignment.rs:+9:9: +9:15
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scope 4 {
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debug drop_y => _5; // in scope 4 at $DIR/basic_assignment.rs:+9:9: +9:15
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}
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}
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}
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}
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bb0: {
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StorageLive(_1); // scope 0 at $DIR/basic_assignment.rs:+1:9: +1:17
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_1 = const false; // scope 0 at $DIR/basic_assignment.rs:+1:20: +1:25
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StorageLive(_2); // scope 1 at $DIR/basic_assignment.rs:+2:9: +2:17
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StorageLive(_3); // scope 2 at $DIR/basic_assignment.rs:+6:16: +6:24
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_3 = _1; // scope 2 at $DIR/basic_assignment.rs:+6:16: +6:24
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_2 = move _3; // scope 2 at $DIR/basic_assignment.rs:+6:5: +6:24
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StorageDead(_3); // scope 2 at $DIR/basic_assignment.rs:+6:23: +6:24
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StorageLive(_4); // scope 2 at $DIR/basic_assignment.rs:+8:9: +8:15
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_4 = Option::<Box<u32>>::None; // scope 2 at $DIR/basic_assignment.rs:+8:36: +8:40
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StorageLive(_5); // scope 3 at $DIR/basic_assignment.rs:+9:9: +9:15
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StorageLive(_6); // scope 4 at $DIR/basic_assignment.rs:+13:14: +13:20
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_6 = move _4; // scope 4 at $DIR/basic_assignment.rs:+13:14: +13:20
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- drop(_5) -> [return: bb1, unwind: bb2]; // scope 4 at $DIR/basic_assignment.rs:+13:5: +13:11
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+ goto -> bb1; // scope 4 at $DIR/basic_assignment.rs:+13:5: +13:11
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}
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bb1: {
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_5 = move _6; // scope 4 at $DIR/basic_assignment.rs:+13:5: +13:11
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- drop(_6) -> [return: bb3, unwind: bb6]; // scope 4 at $DIR/basic_assignment.rs:+13:19: +13:20
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+ goto -> bb3; // scope 4 at $DIR/basic_assignment.rs:+13:19: +13:20
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}
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bb2 (cleanup): {
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_5 = move _6; // scope 4 at $DIR/basic_assignment.rs:+13:5: +13:11
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drop(_6) -> bb6; // scope 4 at $DIR/basic_assignment.rs:+13:19: +13:20
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}
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bb3: {
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StorageDead(_6); // scope 4 at $DIR/basic_assignment.rs:+13:19: +13:20
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_0 = const (); // scope 0 at $DIR/basic_assignment.rs:+0:11: +14:2
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drop(_5) -> [return: bb4, unwind: bb7]; // scope 3 at $DIR/basic_assignment.rs:+14:1: +14:2
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}
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bb4: {
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StorageDead(_5); // scope 3 at $DIR/basic_assignment.rs:+14:1: +14:2
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- drop(_4) -> bb5; // scope 2 at $DIR/basic_assignment.rs:+14:1: +14:2
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+ goto -> bb5; // scope 2 at $DIR/basic_assignment.rs:+14:1: +14:2
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}
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bb5: {
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StorageDead(_4); // scope 2 at $DIR/basic_assignment.rs:+14:1: +14:2
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StorageDead(_2); // scope 1 at $DIR/basic_assignment.rs:+14:1: +14:2
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StorageDead(_1); // scope 0 at $DIR/basic_assignment.rs:+14:1: +14:2
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return; // scope 0 at $DIR/basic_assignment.rs:+14:2: +14:2
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}
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bb6 (cleanup): {
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drop(_5) -> bb7; // scope 3 at $DIR/basic_assignment.rs:+14:1: +14:2
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}
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bb7 (cleanup): {
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- drop(_4) -> bb8; // scope 2 at $DIR/basic_assignment.rs:+14:1: +14:2
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+ goto -> bb8; // scope 2 at $DIR/basic_assignment.rs:+14:1: +14:2
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}
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bb8 (cleanup): {
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resume; // scope 0 at $DIR/basic_assignment.rs:+0:1: +14:2
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}
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}
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