mirror of https://github.com/rust-lang/rust
115 lines
5.9 KiB
Rust
115 lines
5.9 KiB
Rust
//@ run-pass
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// Now that there are several variations on the code generated in
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// `codegen_get_discr`, let's make sure the various cases yield the correct
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// result.
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// To get the discriminant of an E<X1> value, there are no shortcuts - we must
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// do the full algorithm.
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#[repr(u8)]
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pub enum X1 {
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_1 = 1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16,
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_17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32,
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_33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48,
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_49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64,
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_65, _66, _67, _68, _69, _70, _71, _72, _73, _74, _75, _76, _77, _78, _79, _80,
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_81, _82, _83, _84, _85, _86, _87, _88, _89, _90, _91, _92, _93, _94, _95, _96,
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_97, _98, _99, _100, _101, _102, _103, _104, _105, _106, _107, _108, _109, _110, _111, _112,
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_113, _114, _115, _116, _117, _118, _119, _120, _121, _122, _123, _124, _125, _126, _127, _128,
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_129, _130, _131, _132, _133, _134, _135, _136, _137, _138, _139, _140, _141, _142, _143, _144,
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_145, _146, _147, _148, _149, _150, _151, _152, _153, _154, _155, _156, _157, _158, _159, _160,
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_161, _162, _163, _164, _165, _166, _167, _168, _169, _170, _171, _172, _173, _174, _175, _176,
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_177, _178, _179, _180, _181, _182, _183, _184, _185, _186, _187, _188, _189, _190, _191, _192,
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_193, _194, _195, _196, _197, _198, _199, _200, _201, _202, _203, _204, _205, _206, _207, _208,
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_209, _210, _211, _212, _213, _214, _215, _216, _217, _218, _219, _220, _221, _222, _223, _224,
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_225, _226, _227, _228, _229, _230, _231, _232, _233, _234, _235, _236, _237, _238, _239, _240,
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_241, _242, _243, _244, _245, _246, _247, _248, _249, _250, _251, _252, _253, _254,
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}
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#[repr(i8)]
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pub enum X2 {
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_1 = -1, _2 = 0, _3 = 1,
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}
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#[repr(i8)]
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pub enum X3 {
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_1 = -128, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16,
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_17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32,
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_33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48,
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_49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64,
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_65, _66, _67, _68, _69, _70, _71, _72, _73, _74, _75, _76, _77, _78, _79, _80,
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_81, _82, _83, _84, _85, _86, _87, _88, _89, _90, _91, _92, _93, _94, _95, _96,
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_97, _98, _99, _100, _101, _102, _103, _104, _105, _106, _107, _108, _109, _110, _111, _112,
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_113, _114, _115, _116, _117, _118, _119, _120, _121, _122, _123, _124, _125, _126, _127, _128,
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_129, _130, _131, _132, _133, _134, _135, _136, _137, _138, _139, _140, _141, _142, _143, _144,
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_145, _146, _147, _148, _149, _150, _151, _152, _153, _154, _155, _156, _157, _158, _159, _160,
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_161, _162, _163, _164, _165, _166, _167, _168, _169, _170, _171, _172, _173, _174, _175, _176,
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_177, _178, _179, _180, _181, _182, _183, _184, _185, _186, _187, _188, _189, _190, _191, _192,
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_193, _194, _195, _196, _197, _198, _199, _200, _201, _202, _203, _204, _205, _206, _207, _208,
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_209, _210, _211, _212, _213, _214, _215, _216, _217, _218, _219, _220, _221, _222, _223, _224,
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_225, _226, _227, _228, _229, _230, _231, _232, _233, _234, _235, _236, _237, _238, _239, _240,
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_241, _242, _243, _244, _245, _246, _247, _248, _249, _250, _251, _252, _253, _254,
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}
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#[repr(i8)]
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pub enum X4 {
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_1 = -126, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16,
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_17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32,
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_33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48,
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_49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64,
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_65, _66, _67, _68, _69, _70, _71, _72, _73, _74, _75, _76, _77, _78, _79, _80,
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_81, _82, _83, _84, _85, _86, _87, _88, _89, _90, _91, _92, _93, _94, _95, _96,
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_97, _98, _99, _100, _101, _102, _103, _104, _105, _106, _107, _108, _109, _110, _111, _112,
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_113, _114, _115, _116, _117, _118, _119, _120, _121, _122, _123, _124, _125, _126, _127, _128,
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_129, _130, _131, _132, _133, _134, _135, _136, _137, _138, _139, _140, _141, _142, _143, _144,
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_145, _146, _147, _148, _149, _150, _151, _152, _153, _154, _155, _156, _157, _158, _159, _160,
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_161, _162, _163, _164, _165, _166, _167, _168, _169, _170, _171, _172, _173, _174, _175, _176,
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_177, _178, _179, _180, _181, _182, _183, _184, _185, _186, _187, _188, _189, _190, _191, _192,
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_193, _194, _195, _196, _197, _198, _199, _200, _201, _202, _203, _204, _205, _206, _207, _208,
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_209, _210, _211, _212, _213, _214, _215, _216, _217, _218, _219, _220, _221, _222, _223, _224,
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_225, _226, _227, _228, _229, _230, _231, _232, _233, _234, _235, _236, _237, _238, _239, _240,
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_241, _242, _243, _244, _245, _246, _247, _248, _249, _250, _251, _252, _253, _254,
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}
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pub enum E<X> {
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A(X),
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B,
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C,
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}
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pub fn match_e<X>(e: E<X>) -> u8 {
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use E::*;
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match e {
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A(_) => 0,
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B => 1,
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C => 2,
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}
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}
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fn main() {
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assert_eq!(match_e(E::A(X1::_1)), 0);
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assert_eq!(match_e(E::A(X1::_2)), 0);
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assert_eq!(match_e(E::A(X1::_254)), 0);
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assert_eq!(match_e(E::<X1>::B), 1);
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assert_eq!(match_e(E::<X1>::C), 2);
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assert_eq!(match_e(E::A(X2::_1)), 0);
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assert_eq!(match_e(E::A(X2::_2)), 0);
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assert_eq!(match_e(E::A(X2::_3)), 0);
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assert_eq!(match_e(E::<X2>::B), 1);
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assert_eq!(match_e(E::<X2>::C), 2);
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assert_eq!(match_e(E::A(X3::_1)), 0);
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assert_eq!(match_e(E::A(X3::_2)), 0);
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assert_eq!(match_e(E::A(X3::_254)), 0);
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assert_eq!(match_e(E::<X3>::B), 1);
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assert_eq!(match_e(E::<X3>::C), 2);
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assert_eq!(match_e(E::A(X4::_1)), 0);
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assert_eq!(match_e(E::A(X4::_2)), 0);
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assert_eq!(match_e(E::A(X4::_254)), 0);
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assert_eq!(match_e(E::<X4>::B), 1);
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assert_eq!(match_e(E::<X4>::C), 2);
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assert_eq!(match_e(E::A(false)), 0);
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assert_eq!(match_e(E::A(true)), 0);
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assert_eq!(match_e(E::<bool>::B), 1);
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assert_eq!(match_e(E::<bool>::C), 2);
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}
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