mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 19:40:10 +01:00
Richard SmithandChandler Carruth
c588eadb57
Fix a bunch of cases where we use the same external name to mean multiple different things in the same test. We've historically gotten away with this, but under `--share-cpp-ast`, it becomes an error, at least if the entity is either defined in, or used from, C++ code. Assisted-by: Gemini via Antigravity (original change) and Claude Code (suggested edits in review) --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
275 lines
16 KiB
Plaintext
275 lines
16 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/full.carbon
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// EXTRA-ARGS: --clang-arg=--std=c++20
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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/interop/cpp/function/import/constexpr.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/interop/cpp/function/import/constexpr.carbon
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// --- basic.carbon
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library "[[@TEST_NAME]]";
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import Cpp inline '''
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constexpr int add(int a, int b) { return a + b; }
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''';
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let a: array(i32, Cpp.add(1, 2)) = (1, 2, 3);
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// --- bool_param.carbon
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library "[[@TEST_NAME]]";
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import Cpp inline '''
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constexpr int bool_fn(bool b) {
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return b ? 3 : 0;
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}
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''';
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let a: array(i32, Cpp.bool_fn(true)) = (1, 2, 3);
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// --- float_param.carbon
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library "[[@TEST_NAME]]";
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import Cpp inline '''
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constexpr int float_fn(float b) {
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return static_cast<int>(b);
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}
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''';
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let a: array(i32, Cpp.float_fn(3.0)) = (1, 2, 3);
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// --- return_bool.carbon
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library "[[@TEST_NAME]]";
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import Cpp inline '''
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constexpr bool return_bool_fn() {
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return true;
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}
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''';
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musteval fn F(b: bool) -> i32 {
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return if b then 3 else 0;
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}
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let a: array(i32, F(Cpp.return_bool_fn())) = (1, 2, 3);
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// --- fail_invalid_constant_eval.carbon
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library "[[@TEST_NAME]]";
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import Cpp inline '''
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constexpr int arr[1] = {0};
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constexpr int invalid_const_fn(int a) {
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return arr[a];
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}
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''';
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// CHECK:STDERR: fail_invalid_constant_eval.carbon:[[@LINE+4]]:19: error: array bound is not a constant [InvalidArrayExpr]
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// CHECK:STDERR: let a: array(i32, Cpp.invalid_const_fn(5)) = (1, 2, 3);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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let a: array(i32, Cpp.invalid_const_fn(5)) = (1, 2, 3);
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// --- nonconstant_constexpr_call.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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var a: i32 = 0;
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inline Cpp '''
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constexpr int nonconst_constexpr_fn(const int &r) { return r; }
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''';
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// OK, runtime call.
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var b: i32 = Cpp.nonconst_constexpr_fn(a);
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// --- fail_nonconstant_consteval_call.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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var a: i32 = 0;
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// TODO: This is failing when building the thunk, not when calling it.
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inline Cpp '''
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// CHECK:STDERR: fail_nonconstant_consteval_call.carbon:[[@LINE+9]]:15: error: call to consteval function 'nonconst_consteval_fn' is not a constant expression [CppInteropParseError]
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// CHECK:STDERR: 19 | consteval int nonconst_consteval_fn(const int &r) { return r; }
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// CHECK:STDERR: | ^
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// CHECK:STDERR: fail_nonconstant_consteval_call.carbon:[[@LINE+6]]:15: note: function parameter 'r' with unknown value cannot be used in a constant expression [CppInteropParseNote]
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// CHECK:STDERR: 19 | consteval int nonconst_consteval_fn(const int &r) { return r; }
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// CHECK:STDERR: | ^
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// CHECK:STDERR: fail_nonconstant_consteval_call.carbon:[[@LINE+3]]:15: note: declared here [CppInteropParseNote]
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// CHECK:STDERR: 19 | consteval int nonconst_consteval_fn(const int &r) { return r; }
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// CHECK:STDERR: | ^
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consteval int nonconst_consteval_fn(const int &r) { return r; }
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''';
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// CHECK:STDERR: fail_nonconstant_consteval_call.carbon:[[@LINE+11]]:14: note: in thunk for C++ function used here [InCppThunk]
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// CHECK:STDERR: var b: i32 = Cpp.nonconst_consteval_fn(a);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_nonconstant_consteval_call.carbon:[[@LINE+7]]:14: error: non-constant call to compile-time-only function [NonConstantCallToCompTimeOnlyFunction]
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// CHECK:STDERR: var b: i32 = Cpp.nonconst_consteval_fn(a);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_nonconstant_consteval_call.carbon:[[@LINE-10]]:15: note: compile-time-only function declared here [CompTimeOnlyFunctionHere]
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// CHECK:STDERR: consteval int nonconst_consteval_fn(const int &r) { return r; }
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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var b: i32 = Cpp.nonconst_consteval_fn(a);
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// --- fail_todo_constructor.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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inline Cpp '''
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struct ConstexprC {
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constexpr ConstexprC(int a) : a(a) {}
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int a;
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};
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''';
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// TODO: This should probably be allowed.
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eval fn F() -> i32 {
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//@dump-sem-ir-begin
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// CHECK:STDERR: fail_todo_constructor.carbon:[[@LINE+3]]:27: error: expression is runtime; expected constant [EvalRequiresConstantValue]
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// CHECK:STDERR: let c: Cpp.ConstexprC = 3;
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// CHECK:STDERR: ^
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let c: Cpp.ConstexprC = 3;
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return c.a;
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//@dump-sem-ir-end
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}
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// CHECK:STDERR: fail_todo_constructor.carbon:[[@LINE+4]]:19: note: in call to F here [InCallToEvalFn]
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// CHECK:STDERR: let a: array(i32, F()) = (1, 2, 3);
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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let a: array(i32, F()) = (1, 2, 3);
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// CHECK:STDOUT: --- fail_todo_constructor.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
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// CHECK:STDOUT: %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %ConstexprC: type = class_type @ConstexprC [concrete]
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// CHECK:STDOUT: %ConstexprC.elem: type = unbound_element_type %ConstexprC, %i32 [concrete]
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// CHECK:STDOUT: %pattern_type.3cc: type = pattern_type %ConstexprC [concrete]
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// CHECK:STDOUT: %c.patt: %pattern_type.3cc = value_binding_pattern c [concrete]
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// CHECK:STDOUT: %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
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// CHECK:STDOUT: %ptr.0b8: type = ptr_type %ConstexprC [concrete]
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// CHECK:STDOUT: %ConstexprC__carbon_thunk.type: type = fn_type @ConstexprC__carbon_thunk [concrete]
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// CHECK:STDOUT: %ConstexprC__carbon_thunk: %ConstexprC__carbon_thunk.type = struct_value () [concrete]
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// CHECK:STDOUT: %ImplicitAs.type.914: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
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// CHECK:STDOUT: %To: Core.IntLiteral = symbolic_binding To, 0 [symbolic]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e74: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl.0e9(%To) [symbolic]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.845: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e74 = struct_value () [symbolic]
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// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
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// CHECK:STDOUT: %ImplicitAs.impl_witness.a2a: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1aa, @Core.IntLiteral.as.ImplicitAs.impl.0e9(%int_32) [concrete]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.2ba: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl.0e9(%int_32) [concrete]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.e39: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.2ba = struct_value () [concrete]
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// CHECK:STDOUT: %ImplicitAs.facet.48f: %ImplicitAs.type.914 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.a2a) [concrete]
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// CHECK:STDOUT: %ImplicitAs.WithSelf.Convert.type.8eb: type = fn_type @ImplicitAs.WithSelf.Convert, @ImplicitAs.WithSelf(%i32, %ImplicitAs.facet.48f) [concrete]
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// CHECK:STDOUT: %.b7a: type = fn_type_with_self_type %ImplicitAs.WithSelf.Convert.type.8eb, %ImplicitAs.facet.48f [concrete]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.e39 [concrete]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.e39, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
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// CHECK:STDOUT: %bound_method: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
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// CHECK:STDOUT: %int_3.410: %i32 = int_value 3 [concrete]
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// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.ac8: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
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// CHECK:STDOUT: %Int.as.Copy.impl.Op.5e0: %Int.as.Copy.impl.Op.type.ac8 = struct_value () [symbolic]
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// CHECK:STDOUT: %Copy.impl_witness.b51: <witness> = impl_witness imports.%Copy.impl_witness_table.8d2, @Int.as.Copy.impl(%int_32) [concrete]
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// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.3f6: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
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// CHECK:STDOUT: %Int.as.Copy.impl.Op.4f6: %Int.as.Copy.impl.Op.type.3f6 = struct_value () [concrete]
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// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.b51) [concrete]
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// CHECK:STDOUT: %Copy.WithSelf.Op.type.381: type = fn_type @Copy.WithSelf.Op, @Copy.WithSelf(%Copy.facet) [concrete]
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// CHECK:STDOUT: %.737: type = fn_type_with_self_type %Copy.WithSelf.Op.type.381, %Copy.facet [concrete]
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// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.4f6, @Int.as.Copy.impl.Op(%int_32) [concrete]
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// CHECK:STDOUT: %ConstexprC.cpp_destructor.type: type = fn_type @ConstexprC.cpp_destructor [concrete]
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// CHECK:STDOUT: %ConstexprC.cpp_destructor: %ConstexprC.cpp_destructor.type = struct_value () [concrete]
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// CHECK:STDOUT: %ConstexprC.Op.type: type = fn_type @ConstexprC.Op [concrete]
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// CHECK:STDOUT: %ConstexprC.Op: %ConstexprC.Op.type = struct_value () [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
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// CHECK:STDOUT: .ConstexprC = %ConstexprC.decl
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// CHECK:STDOUT: import Cpp//...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %ConstexprC.decl: type = class_decl @ConstexprC [concrete = constants.%ConstexprC] {} {}
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// CHECK:STDOUT: %ConstexprC__carbon_thunk.decl: %ConstexprC__carbon_thunk.type = fn_decl @ConstexprC__carbon_thunk [concrete = constants.%ConstexprC__carbon_thunk] {
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import_ref.edf: @Core.IntLiteral.as.ImplicitAs.impl.0e9.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e74) = import_ref Core//prelude/types/int, loc{{\d+_\d+}}, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.0e9.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.845)]
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// CHECK:STDOUT: %ImplicitAs.impl_witness_table.1aa = impl_witness_table (%Core.import_ref.edf), @Core.IntLiteral.as.ImplicitAs.impl.0e9 [concrete]
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// CHECK:STDOUT: %Core.import_ref.cd6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.ac8) = import_ref Core//prelude/types/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.5e0)]
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// CHECK:STDOUT: %Copy.impl_witness_table.8d2 = impl_witness_table (%Core.import_ref.cd6), @Int.as.Copy.impl [concrete]
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// CHECK:STDOUT: %ConstexprC.cpp_destructor.decl: %ConstexprC.cpp_destructor.type = fn_decl @ConstexprC.cpp_destructor [concrete = constants.%ConstexprC.cpp_destructor] {
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F() -> out %return.param: %i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
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// CHECK:STDOUT: %.loc19_27.1: ref %ConstexprC = temporary_storage
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// CHECK:STDOUT: %impl.elem0.loc19: %.b7a = impl_witness_access constants.%ImplicitAs.impl_witness.a2a, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.e39]
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// CHECK:STDOUT: %bound_method.loc19_27.1: <bound method> = bound_method %int_3, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
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// CHECK:STDOUT: %specific_fn.loc19: <specific function> = specific_function %impl.elem0.loc19, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
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// CHECK:STDOUT: %bound_method.loc19_27.2: <bound method> = bound_method %int_3, %specific_fn.loc19 [concrete = constants.%bound_method]
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// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc19_27.2(%int_3) [concrete = constants.%int_3.410]
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// CHECK:STDOUT: %.loc19_27.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_3.410]
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// CHECK:STDOUT: %.loc19_27.3: %i32 = converted %int_3, %.loc19_27.2 [concrete = constants.%int_3.410]
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// CHECK:STDOUT: %addr: %ptr.0b8 = addr_of %.loc19_27.1
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// CHECK:STDOUT: %ConstexprC__carbon_thunk.call: init %empty_tuple.type = call imports.%ConstexprC__carbon_thunk.decl(%.loc19_27.3, %addr)
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// CHECK:STDOUT: %.loc19_27.4: init %ConstexprC to %.loc19_27.1 = mark_in_place_init %ConstexprC__carbon_thunk.call
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// CHECK:STDOUT: %.loc19_27.5: init %ConstexprC = converted %int_3, %.loc19_27.4
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// CHECK:STDOUT: %.loc19_27.6: ref %ConstexprC = temporary %.loc19_27.1, %.loc19_27.5
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// CHECK:STDOUT: %.loc19_27.7: %ConstexprC = acquire_value %.loc19_27.6
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// CHECK:STDOUT: %.loc19_13: type = splice_block %ConstexprC.ref [concrete = constants.%ConstexprC] {
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// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %ConstexprC.ref: type = name_ref ConstexprC, imports.%ConstexprC.decl [concrete = constants.%ConstexprC]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %c: %ConstexprC = wrapper_binding c, %.loc19_27.7
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %c.patt: %pattern_type.3cc = value_binding_pattern c [concrete = constants.%c.patt]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %c.ref: %ConstexprC = name_ref c, %c
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// CHECK:STDOUT: %a.ref: %ConstexprC.elem = name_ref a, @ConstexprC.%.1 [concrete = @ConstexprC.%.1]
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// CHECK:STDOUT: %.loc20_11.1: ref %i32 = class_element_access %c.ref, element0
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// CHECK:STDOUT: %.loc20_11.2: %i32 = acquire_value %.loc20_11.1
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// CHECK:STDOUT: %impl.elem0.loc20: %.737 = impl_witness_access constants.%Copy.impl_witness.b51, element0 [concrete = constants.%Int.as.Copy.impl.Op.4f6]
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// CHECK:STDOUT: %bound_method.loc20_11.1: <bound method> = bound_method %.loc20_11.2, %impl.elem0.loc20
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// CHECK:STDOUT: %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
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// CHECK:STDOUT: %bound_method.loc20_11.2: <bound method> = bound_method %.loc20_11.2, %specific_fn.loc20
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// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc20_11.2(%.loc20_11.2)
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: %ConstexprC.Op.bound: <bound method> = bound_method %.loc19_27.6, constants.%ConstexprC.Op
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// CHECK:STDOUT: %Op.ref: %ConstexprC.cpp_destructor.type = name_ref Op, imports.%ConstexprC.cpp_destructor.decl [concrete = constants.%ConstexprC.cpp_destructor]
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// CHECK:STDOUT: %ConstexprC.cpp_destructor.bound: <bound method> = bound_method %.loc19_27.6, %Op.ref
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// CHECK:STDOUT: %ConstexprC.cpp_destructor.call: init %empty_tuple.type = call %ConstexprC.cpp_destructor.bound(%.loc19_27.6)
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// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @__global_init() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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