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Add explicit testing for use of non-constant template arguments. (#7735)

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Also move another template test into the template/ subdirectory.
This commit is contained in:
Richard Smith
2026-09-08 23:36:36 +00:00
committed by GitHub
parent c6d8d29172
commit d92a981083
2 changed files with 79 additions and 2 deletions
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toolchain/check/testdata/generic/template/argument.carbon
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+77
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@@ -0,0 +1,77 @@
// 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/destroy.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/generic/template/argument.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/generic/template/argument.carbon
// --- constant_type_argument.carbon
library "[[@TEST_NAME]]";
fn F(template T: type, unused x: T) {}
class X {}
fn G(x: X) {
F((), ());
F({}, {});
F(X, {});
F(type, X);
F(X, x);
}
// --- constant_nontype_argument.carbon
library "[[@TEST_NAME]]";
fn F(template T: type, unused template X: T) {}
class X {}
fn G() {
F((), ());
F({}, {});
F(X, {});
F(type, X);
}
// --- fail_non_constant_type_argument.carbon
library "[[@TEST_NAME]]";
class Y {}
let T: type = Y;
fn F(template T: type, unused y: T) {}
fn H(y: Y) {
// CHECK:STDERR: fail_non_constant_type_argument.carbon:[[@LINE+7]]:3: error: argument for generic parameter is not a compile-time constant [CompTimeArgumentNotConstant]
// CHECK:STDERR: F(T, y);
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_non_constant_type_argument.carbon:[[@LINE-6]]:6: note: initializing generic parameter `T` declared here [InitializingGenericParam]
// CHECK:STDERR: fn F(template T: type, unused y: T) {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~
// CHECK:STDERR:
F(T, y);
}
// --- fail_non_constant_nontype_argument.carbon
library "[[@TEST_NAME]]";
class Y {}
fn F(unused template X: Y) {}
fn H(y: Y) {
// CHECK:STDERR: fail_non_constant_nontype_argument.carbon:[[@LINE+7]]:3: error: argument for generic parameter is not a compile-time constant [CompTimeArgumentNotConstant]
// CHECK:STDERR: F(y);
// CHECK:STDERR: ^~~~
// CHECK:STDERR: fail_non_constant_nontype_argument.carbon:[[@LINE-6]]:13: note: initializing generic parameter `X` declared here [InitializingGenericParam]
// CHECK:STDERR: fn F(unused template X: Y) {}
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
F(y);
}
toolchain/check/testdata/generic/template_dependence.carbon → toolchain/check/testdata/generic/template/dependence.carbon
Vendored
+2 -2
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@@ -6,9 +6,9 @@
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/generic/template_dependence.carbon
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/generic/template/dependence.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/generic/template_dependence.carbon
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/generic/template/dependence.carbon
// --- type.carbon