mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:20:11 +01:00
Richard Smith
0354efa1fc
Instead of the `call` instruction having a block with one argument per explicit argument, preceded optionally by `self` and followed optionally by a return slot, change the `call` to store only the *runtime* arguments. Store an index on the runtime parameters to make it easier to determine the correspondence between arguments and parameters in a call. Compile-time parameters, whether implicit or explicit, are no longer included in the call argument list. Instead, they're tracked only in the `specific_id` on the callee. For calls to generic classes and generic interfaces, it no longer makes sense to form a `call` instruction, given that the entirety of the result is determined by the `specific_id`, which is now formed when checking the call. Instead, the `call` instruction now only models function calls, and not calls to other kinds of parameterized entity names, and we create a `class_type` or `interface_type` instead of a `call` instruction to model these kinds of calls. Notionally the model here is that we're following the #3720 approach for calls, but for now we inline the `Call.Op` function when forming SemIR. We now also track the enclosing specific for a generic class or generic interface that appears within an enclosing generic. This is necessary in order for deduction of the inner generic parameters to not get confused by the outer generic parameters being absent. In order to not regress diagnostics, the template argument deduction mechanism has been extended to specify the name of the parameter we're deducing against when possible, and call arity mismatch errors are now diagnosed before performing deduction rather than afterwards.
65 lines
2.8 KiB
Plaintext
65 lines
2.8 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/class/forward_declared.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/class/forward_declared.carbon
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class Class;
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fn F(p: Class*) -> Class* { return p; }
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// CHECK:STDOUT: --- forward_declared.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Class: type = class_type @Class [template]
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// CHECK:STDOUT: %.1: type = ptr_type %Class [template]
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// CHECK:STDOUT: %F.type: type = fn_type @F [template]
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// CHECK:STDOUT: %.2: type = tuple_type () [template]
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// CHECK:STDOUT: %F: %F.type = struct_value () [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: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/operators
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// CHECK:STDOUT: import Core//prelude/types
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// CHECK:STDOUT: import Core//prelude/operators/arithmetic
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// CHECK:STDOUT: import Core//prelude/operators/as
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// CHECK:STDOUT: import Core//prelude/operators/bitwise
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// CHECK:STDOUT: import Core//prelude/operators/comparison
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// CHECK:STDOUT: import Core//prelude/types/bool
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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: .Class = %Class.decl
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// CHECK:STDOUT: .F = %F.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %Class.decl: type = class_decl @Class [template = constants.%Class] {}
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// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {
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// CHECK:STDOUT: %Class.ref.loc13_9: type = name_ref Class, %Class.decl [template = constants.%Class]
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// CHECK:STDOUT: %.loc13_14: type = ptr_type %Class [template = constants.%.1]
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// CHECK:STDOUT: %p.loc13_6.1: %.1 = param p, runtime_param0
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// CHECK:STDOUT: @F.%p: %.1 = bind_name p, %p.loc13_6.1
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// CHECK:STDOUT: %Class.ref.loc13_20: type = name_ref Class, %Class.decl [template = constants.%Class]
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// CHECK:STDOUT: %.loc13_25: type = ptr_type %Class [template = constants.%.1]
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// CHECK:STDOUT: @F.%return: ref %.1 = var <return slot>
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @Class;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F(%p: %.1) -> %.1 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %p.ref: %.1 = name_ref p, %p
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// CHECK:STDOUT: return %p.ref
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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