mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 22:02:55 +01:00
Geoff Romer
8945305dfc
In some cases the pattern block can depend on the initializer, so it must be sequenced after it. See #7469 for a more detailed explanation of why this is necessary.
80 lines
4.0 KiB
Plaintext
80 lines
4.0 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/builtins/int/convert_float_checked.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/builtins/int/convert_float_checked.carbon
|
|
|
|
// --- int_to_float_checked.carbon
|
|
library "[[@TEST_NAME]]";
|
|
|
|
fn ConvertIntLiteralToFloatLiteral(a: Core.IntLiteral) -> Core.FloatLiteral = "int.convert_float_checked";
|
|
fn ConvertIntLiteralToF32(a: Core.IntLiteral) -> f32 = "int.convert_float_checked";
|
|
|
|
class Expect[T:! type](N:! T) {}
|
|
fn Test[T:! type](N:! T) -> Expect(N) { return {}; }
|
|
|
|
// --- identity.carbon
|
|
library "[[@TEST_NAME]]";
|
|
import library "int_to_float_checked";
|
|
|
|
fn F() {
|
|
// Exact unsized float literal checked conversion.
|
|
Test(ConvertIntLiteralToFloatLiteral(42) as f64) as Expect(42.0 as f64);
|
|
|
|
// Direct exact sized float conversions.
|
|
Test(ConvertIntLiteralToF32(12345)) as Expect(12345.0 as f32);
|
|
}
|
|
|
|
// --- fail_lossy.carbon
|
|
library "[[@TEST_NAME]]";
|
|
import library "int_to_float_checked";
|
|
|
|
//@dump-sem-ir-begin
|
|
// CHECK:STDERR: fail_lossy.carbon:[[@LINE+4]]:18: error: integer value 123456789 cannot be represented exactly in floating-point type `f32` [IntLossyConversionToFloat]
|
|
// CHECK:STDERR: let lossy: f32 = ConvertIntLiteralToF32(123456789);
|
|
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// CHECK:STDERR:
|
|
let lossy: f32 = ConvertIntLiteralToF32(123456789);
|
|
//@dump-sem-ir-end
|
|
|
|
// CHECK:STDOUT: --- fail_lossy.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
|
|
// CHECK:STDOUT: %f32.c73: type = class_type @Float, @Float(%int_32) [concrete]
|
|
// CHECK:STDOUT: %pattern_type.240: type = pattern_type %f32.c73 [concrete]
|
|
// CHECK:STDOUT: %lossy.patt: %pattern_type.240 = value_binding_pattern lossy [concrete]
|
|
// CHECK:STDOUT: %ConvertIntLiteralToF32.type: type = fn_type @ConvertIntLiteralToF32 [concrete]
|
|
// CHECK:STDOUT: %ConvertIntLiteralToF32: %ConvertIntLiteralToF32.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %int_123456789: Core.IntLiteral = int_value 123456789 [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: imports {
|
|
// CHECK:STDOUT: %Main.ConvertIntLiteralToF32: %ConvertIntLiteralToF32.type = import_ref Main//int_to_float_checked, ConvertIntLiteralToF32, loaded [concrete = constants.%ConvertIntLiteralToF32]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: file {
|
|
// CHECK:STDOUT: %.loc9_50.1: %f32.c73 = value_of_initializer @__global_init.%ConvertIntLiteralToF32.call [concrete = <error>]
|
|
// CHECK:STDOUT: %.loc9_50.2: %f32.c73 = converted @__global_init.%ConvertIntLiteralToF32.call, %.loc9_50.1 [concrete = <error>]
|
|
// CHECK:STDOUT: %f32: type = type_literal constants.%f32.c73 [concrete = constants.%f32.c73]
|
|
// CHECK:STDOUT: %lossy: %f32.c73 = wrapper_binding lossy, %.loc9_50.2 [concrete = <error>]
|
|
// CHECK:STDOUT: name_binding_decl {
|
|
// CHECK:STDOUT: %lossy.patt: %pattern_type.240 = value_binding_pattern lossy [concrete = constants.%lossy.patt]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @__global_init() {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: %ConvertIntLiteralToF32.ref: %ConvertIntLiteralToF32.type = name_ref ConvertIntLiteralToF32, imports.%Main.ConvertIntLiteralToF32 [concrete = constants.%ConvertIntLiteralToF32]
|
|
// CHECK:STDOUT: %int_123456789: Core.IntLiteral = int_value 123456789 [concrete = constants.%int_123456789]
|
|
// CHECK:STDOUT: %ConvertIntLiteralToF32.call: init %f32.c73 = call %ConvertIntLiteralToF32.ref(%int_123456789) [concrete = <error>]
|
|
// CHECK:STDOUT: <elided>
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|