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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
a10c79569e
Instead of treating `Core.Int` as the toolchain's builtin `IntType`, model it as a class that adapts the builtin type. This aligns us better with the intended language model, gives an associated library for `impl`s involving `Core.Int` to live within, and opens the door adding member functions to `Core.Int` if we decide that is desirable. Remarkably it also seems to make the formatted SemIR a little smaller, because a call to a generic class generates less IR than a call to a function.
64 lines
2.6 KiB
Plaintext
64 lines
2.6 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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// 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/impl/empty.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/impl/empty.carbon
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interface Empty {
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}
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impl i32 as Empty {
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}
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// CHECK:STDOUT: --- empty.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Empty.type: type = facet_type <@Empty> [template]
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// CHECK:STDOUT: %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [template]
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// CHECK:STDOUT: %interface: <witness> = interface_witness () [template]
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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: %Core: <namespace> = namespace file.%Core.import, [template] {
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// CHECK:STDOUT: .Int = %import_ref.1
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// CHECK:STDOUT: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [template] {
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// CHECK:STDOUT: .Core = imports.%Core
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// CHECK:STDOUT: .Empty = %Empty.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %Empty.decl: type = interface_decl @Empty [template = constants.%Empty.type] {} {}
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// CHECK:STDOUT: impl_decl @impl [template] {} {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
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// CHECK:STDOUT: %Empty.ref: type = name_ref Empty, file.%Empty.decl [template = constants.%Empty.type]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @Empty {
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// CHECK:STDOUT: %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: witness = ()
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: %i32 as %Empty.ref {
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// CHECK:STDOUT: %interface: <witness> = interface_witness () [template = constants.%interface]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: witness = %interface
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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