mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-29 17:15:08 +01:00
Geoff RomerandRichard Smith
e023f75254
The bulk of this change is changing most pattern insts to be `Always` rather than `AlwaysUnique` constants, so that they can be wrapped in `SpecificConstant`s to perform substitution. That then lets thunking rely much more on `SpecificConstant` wrappers instead of deep-copying the inst tree with modified types. This approach to thunking should scale better, particularly as things like form generics make function signatures more complex, because we can leverage the existing support for constant evaluation and substitution. Unfortunately, applying this approach to binding patterns will require more work; see the TODO near the top of `thunk.cpp` for details. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
148 lines
6.0 KiB
Plaintext
148 lines
6.0 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/primitives.carbon
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// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
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// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/if_expr/fail_not_in_function.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/if_expr/fail_not_in_function.carbon
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// --- fail_basic.carbon
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library "[[@TEST_NAME]]";
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// CHECK:STDERR: fail_basic.carbon:[[@LINE+12]]:14: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: let x: i32 = if true then 1 else 0;
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_basic.carbon:[[@LINE+8]]:22: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: let x: i32 = if true then 1 else 0;
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_basic.carbon:[[@LINE+4]]:14: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: let x: i32 = if true then 1 else 0;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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let x: i32 = if true then 1 else 0;
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// --- fail_types.carbon
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library "[[@TEST_NAME]]";
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// CHECK:STDERR: fail_types.carbon:[[@LINE+4]]:8: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: var y: if true then i32 else f64;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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var y: if true then i32 else f64;
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// --- fail_in_param.carbon
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library "[[@TEST_NAME]]";
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// CHECK:STDERR: fail_in_param.carbon:[[@LINE+4]]:9: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: fn F(a: if true then i32 else f64);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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fn F(a: if true then i32 else f64);
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// --- fail_class.carbon
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library "[[@TEST_NAME]]";
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class C {
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// CHECK:STDERR: fail_class.carbon:[[@LINE+4]]:10: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: var n: if true then i32 else f64;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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var n: if true then i32 else f64;
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}
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// --- fail_nested_class.carbon
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library "[[@TEST_NAME]]";
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base class C(T:! type) {}
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fn F() {
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class B {
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// CHECK:STDERR: fail_nested_class.carbon:[[@LINE+4]]:20: error: semantics TODO: `Control flow expressions are currently only supported inside functions.` [SemanticsTodo]
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// CHECK:STDERR: extend base: C(if true then i32 else i32);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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extend base: C(if true then i32 else i32);
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}
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}
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// CHECK:STDOUT: --- fail_basic.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_types.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_in_param.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_class.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %C: type = class_type @C [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @C {
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// CHECK:STDOUT: complete_type_witness = invalid
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%C
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_nested_class.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
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// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic]
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// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
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// CHECK:STDOUT: %C.type: type = generic_class_type @C [concrete]
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// CHECK:STDOUT: %C.generic: %C.type = struct_value () [concrete]
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// CHECK:STDOUT: %C: type = class_type @C, @C(%T) [symbolic]
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// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
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// CHECK:STDOUT: %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
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// CHECK:STDOUT: %B: type = class_type @B [concrete]
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// CHECK:STDOUT: %true: bool = bool_literal true [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: generic class @C(<unexpected>.inst{{[0-9A-F]+}}.loc4_15: type) {
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// CHECK:STDOUT: %T.patt.loc4_15.2: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_15.2 (constants.%T.patt)]
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// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic = %T (constants.%T)]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !definition:
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// CHECK:STDOUT:
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// CHECK:STDOUT: class {
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// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
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// CHECK:STDOUT: complete_type_witness = %complete_type
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%C
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @B {
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// CHECK:STDOUT: %C.ref: %C.type = name_ref C, <unexpected>.inst{{[0-9A-F]+}}.loc4_24 [concrete = constants.%C.generic]
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// CHECK:STDOUT: %true: bool = bool_literal true [concrete = constants.%true]
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// CHECK:STDOUT: if %true br !if.expr.then else br !if.expr.else
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// CHECK:STDOUT: complete_type_witness = invalid
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%B
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// CHECK:STDOUT: .C = <poisoned>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F();
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @C(constants.%T) {
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// CHECK:STDOUT: %T.patt.loc4_15.2 => constants.%T.patt
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// CHECK:STDOUT: %T => constants.%T
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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