Files
carbon-lang/toolchain/check/testdata/interop/cpp/function/function.carbon
T
Jon Ross-Perkins 47081be67a Reduce test sensitivity to small import loc changes (#6145)
Locations are similarly fragile, because adding a comment changes them.
This has made me pause when making prelude changes in #6144, so dropping
them for those cases.

Instruction ids aren't actually that interesting outside debugging, and
can be churny when doing other structural changes. I've seen this in
particular when doing singleton changes, which bump every instruction
id.

Note there are still other ways fragility from locations can crop up.
This shouldn't be considered a complete fix, but hopefully a small
improvement.
2025-09-30 17:20:14 +00:00

406 lines
18 KiB
Plaintext

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/primitives.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/function/function.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/function/function.carbon
// ============================================================================
// Global
// ============================================================================
// --- global.h
auto foo() -> void;
// --- import_global.carbon
library "[[@TEST_NAME]]";
import Cpp library "global.h";
fn MyF() {
//@dump-sem-ir-begin
Cpp.foo();
//@dump-sem-ir-end
}
// --- fail_import_global_use_different_name.carbon
library "[[@TEST_NAME]]";
import Cpp library "global.h";
fn MyF() {
// CHECK:STDERR: fail_import_global_use_different_name.carbon:[[@LINE+4]]:3: error: member name `bar` not found in `Cpp` [MemberNameNotFoundInInstScope]
// CHECK:STDERR: Cpp.bar();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
Cpp.bar();
}
// ============================================================================
// Carbon keyword name
// ============================================================================
// --- special_name.h
auto base() -> void;
// --- fail_import_special_name_call_unescaped.carbon
library "[[@TEST_NAME]]";
import Cpp library "special_name.h";
fn MyF() {
// CHECK:STDERR: fail_import_special_name_call_unescaped.carbon:[[@LINE+4]]:3: error: member name `base` not found in `Cpp` [MemberNameNotFoundInInstScope]
// CHECK:STDERR: Cpp.base();
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR:
Cpp.base();
}
// --- import_special_name_call_escaped.carbon
library "[[@TEST_NAME]]";
import Cpp library "special_name.h";
fn MyF() {
//@dump-sem-ir-begin
Cpp.r#base();
//@dump-sem-ir-end
}
// ============================================================================
// Overloaded
// ============================================================================
// --- overloaded.h
auto foo() -> void;
auto foo(int value) -> void;
// --- import_overloaded.carbon
library "[[@TEST_NAME]]";
import Cpp library "overloaded.h";
fn F() {
//@dump-sem-ir-begin
Cpp.foo();
//@dump-sem-ir-end
}
// ============================================================================
// Variadic arguments
// ============================================================================
// --- variadic.h
auto foo(int x, ...) -> void;
// --- fail_todo_import_variadic.carbon
library "[[@TEST_NAME]]";
import Cpp library "variadic.h";
fn F() {
//@dump-sem-ir-begin
// CHECK:STDERR: fail_todo_import_variadic.carbon:[[@LINE+4]]:3: error: semantics TODO: `Unsupported: Variadic function` [SemanticsTodo]
// CHECK:STDERR: Cpp.foo(8);
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
Cpp.foo(8);
//@dump-sem-ir-end
}
// ============================================================================
// Static
// ============================================================================
// --- static.h
static auto foo() -> void;
// --- todo_fail_import_static.carbon
library "[[@TEST_NAME]]";
// TODO: Promote this warning to an error by default.
// CHECK:STDERR: todo_fail_import_static.carbon:[[@LINE+4]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./static.h:2:13: warning: function 'foo' has internal linkage but is not defined [CppInteropParseWarning]
// CHECK:STDERR: 2 | static auto foo() -> void;
// CHECK:STDERR: | ^
import Cpp library "static.h";
fn F() {
//@dump-sem-ir-begin
// CHECK:STDERR: todo_fail_import_static.carbon:[[@LINE+4]]:11: note: used here [CppInteropParseNote]
// CHECK:STDERR: 17 | Cpp.foo();
// CHECK:STDERR: | ^
// CHECK:STDERR:
Cpp.foo();
//@dump-sem-ir-end
}
// --- template_function.h
template<typename T>
auto foo(T a) -> void;
template<typename T>
auto bar(T a) -> T;
// --- import_template_function.carbon
library "[[@TEST_NAME]]";
import Cpp library "template_function.h";
fn F() {
//@dump-sem-ir-begin
Cpp.foo(1 as i32);
//@dump-sem-ir-end
}
fn G() -> i32 {
//@dump-sem-ir-begin
return Cpp.bar(1 as i32);
//@dump-sem-ir-end
}
// TODO: Add a test per unsupported param type. See https://github.com/carbon-language/carbon-lang/pull/5477/files/4321e21ed27d987fd71be182d292973fd9849df8#r2094655176
// TODO: Add a test per unsupported return type. See https://github.com/carbon-language/carbon-lang/pull/5477/files/4321e21ed27d987fd71be182d292973fd9849df8#r2094655176
// CHECK:STDOUT: --- import_global.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @foo [concrete]
// CHECK:STDOUT: %empty_struct: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %foo.type: type = fn_type @foo [concrete]
// CHECK:STDOUT: %foo: %foo.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @foo [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.call: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_special_name_call_escaped.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.f7d: type = cpp_overload_set_type @base [concrete]
// CHECK:STDOUT: %empty_struct: %.f7d = struct_value () [concrete]
// CHECK:STDOUT: %base.type: type = fn_type @base [concrete]
// CHECK:STDOUT: %base: %base.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .r#base = %.6f0
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.6f0: %.f7d = cpp_overload_set_value @base [concrete = constants.%empty_struct]
// CHECK:STDOUT: %base.decl: %base.type = fn_decl @base [concrete = constants.%base] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %base.ref: %.f7d = name_ref r#base, imports.%.6f0 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %base.call: init %empty_tuple.type = call imports.%base.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_overloaded.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @foo [concrete]
// CHECK:STDOUT: %empty_struct: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %foo.type: type = fn_type @foo [concrete]
// CHECK:STDOUT: %foo: %foo.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @foo [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.call: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_import_variadic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @<null name> [concrete]
// CHECK:STDOUT: %empty_struct: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %int_8: Core.IntLiteral = int_value 8 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @<null name> [concrete = constants.%empty_struct]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %int_8: Core.IntLiteral = int_value 8 [concrete = constants.%int_8]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- todo_fail_import_static.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @foo [concrete]
// CHECK:STDOUT: %empty_struct: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %foo.type: type = fn_type @foo [concrete]
// CHECK:STDOUT: %foo: %foo.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @foo [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.call: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_template_function.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @Core.IntLiteral.as.As.impl.Convert [concrete]
// CHECK:STDOUT: %empty_struct.109: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %As.type.dbd: type = facet_type <@As, @As(%i32)> [concrete]
// CHECK:STDOUT: %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
// CHECK:STDOUT: %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.type.565: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.d2c: %Core.IntLiteral.as.As.impl.Convert.type.565 = struct_value () [symbolic]
// CHECK:STDOUT: %As.impl_witness.080: <witness> = impl_witness imports.%As.impl_witness_table.5ad, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.type.aaf: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.414: %Core.IntLiteral.as.As.impl.Convert.type.aaf = struct_value () [concrete]
// CHECK:STDOUT: %As.facet: %As.type.dbd = facet_value Core.IntLiteral, (%As.impl_witness.080) [concrete]
// CHECK:STDOUT: %.351: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.414 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.414, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT: %int_1.5d2: %i32 = int_value 1 [concrete]
// CHECK:STDOUT: %foo.type: type = fn_type @foo [concrete]
// CHECK:STDOUT: %foo: %foo.type = struct_value () [concrete]
// CHECK:STDOUT: %.414: type = cpp_overload_set_type @Int.as.As.impl.Convert [concrete]
// CHECK:STDOUT: %empty_struct.540: %.414 = struct_value () [concrete]
// CHECK:STDOUT: %bar.type: type = fn_type @bar [concrete]
// CHECK:STDOUT: %bar: %bar.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: .bar = %.146
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @Core.IntLiteral.as.As.impl.Convert [concrete = constants.%empty_struct.109]
// CHECK:STDOUT: %Core.import_ref.99c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.565) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.d2c)]
// CHECK:STDOUT: %As.impl_witness_table.5ad = impl_witness_table (%Core.import_ref.99c), @Core.IntLiteral.as.As.impl [concrete]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: %.146: %.414 = cpp_overload_set_value @Int.as.As.impl.Convert [concrete = constants.%empty_struct.540]
// CHECK:STDOUT: %bar.decl: %bar.type = fn_decl @bar [concrete = constants.%bar] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct.109]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: %impl.elem0: %.351 = impl_witness_access constants.%As.impl_witness.080, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.414]
// CHECK:STDOUT: %bound_method.loc8_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.call: init %i32 = call %bound_method.loc8_13.2(%int_1) [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc8_13.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc8_13.2: %i32 = converted %int_1, %.loc8_13.1 [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %foo.call: init %empty_tuple.type = call imports.%foo.decl(%.loc8_13.2)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %bar.ref: %.414 = name_ref bar, imports.%.146 [concrete = constants.%empty_struct.540]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %int_32.loc14: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc14: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: %impl.elem0: %.351 = impl_witness_access constants.%As.impl_witness.080, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.414]
// CHECK:STDOUT: %bound_method.loc14_20.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc14_20.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
// CHECK:STDOUT: %Core.IntLiteral.as.As.impl.Convert.call: init %i32 = call %bound_method.loc14_20.2(%int_1) [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc14_20.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc14_20.2: %i32 = converted %int_1, %.loc14_20.1 [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %bar.call: init %i32 = call imports.%bar.decl(%.loc14_20.2)
// CHECK:STDOUT: return %bar.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT: