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carbon-lang/toolchain/check/testdata/class/init.carbon
T
Richard SmithandJon Ross-Perkins 187a3608df Use As and ImplicitAs interfaces for conversions. (#4209) 
Add these interfaces to the core library. For now, they're two separate
interfaces because we don't yet support one interface extending another.

This collapses a lot of the layering in check: for example, the call
building logic depends on implicit conversions, conversions now depend
on the overloaded operator machinery, and that machinery depends on
building calls.

In passing, improve the diagnostics for failing to find a name required
from the prelude. Also convert all the transitively-called code from
`NodeId` to `LocId` given the latter is what the conversion machinery
has available.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-09-05 23:39:58 +00:00

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// 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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/init.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/init.carbon
class Class {
var n: i32;
var next: Class*;
}
fn Make(n: i32, next: Class*) -> Class {
return {.n = n, .next = next};
}
fn MakeReorder(n: i32, next: Class*) -> Class {
return {.next = next, .n = n};
}
// CHECK:STDOUT: --- init.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Class: type = class_type @Class [template]
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %.2: type = unbound_element_type %Class, i32 [template]
// CHECK:STDOUT: %.3: type = ptr_type %Class [template]
// CHECK:STDOUT: %.4: type = unbound_element_type %Class, %.3 [template]
// CHECK:STDOUT: %.5: type = struct_type {.n: i32, .next: %.3} [template]
// CHECK:STDOUT: %Make.type: type = fn_type @Make [template]
// CHECK:STDOUT: %Make: %Make.type = struct_value () [template]
// CHECK:STDOUT: %.6: type = ptr_type %.5 [template]
// CHECK:STDOUT: %MakeReorder.type: type = fn_type @MakeReorder [template]
// CHECK:STDOUT: %MakeReorder: %MakeReorder.type = struct_value () [template]
// CHECK:STDOUT: %.7: type = struct_type {.next: %.3, .n: i32} [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/operators
// CHECK:STDOUT: import Core//prelude/types
// CHECK:STDOUT: import Core//prelude/operators/arithmetic
// CHECK:STDOUT: import Core//prelude/operators/as
// CHECK:STDOUT: import Core//prelude/operators/bitwise
// CHECK:STDOUT: import Core//prelude/operators/comparison
// CHECK:STDOUT: import Core//prelude/types/bool
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Class = %Class.decl
// CHECK:STDOUT: .Make = %Make.decl
// CHECK:STDOUT: .MakeReorder = %MakeReorder.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Class.decl: type = class_decl @Class [template = constants.%Class] {}
// CHECK:STDOUT: %Make.decl: %Make.type = fn_decl @Make [template = constants.%Make] {
// CHECK:STDOUT: %int.make_type_32.loc16: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc16_12.1: type = value_of_initializer %int.make_type_32.loc16 [template = i32]
// CHECK:STDOUT: %.loc16_12.2: type = converted %int.make_type_32.loc16, %.loc16_12.1 [template = i32]
// CHECK:STDOUT: %n.loc16_9.1: i32 = param n
// CHECK:STDOUT: @Make.%n: i32 = bind_name n, %n.loc16_9.1
// CHECK:STDOUT: %Class.ref.loc16_23: type = name_ref Class, %Class.decl [template = constants.%Class]
// CHECK:STDOUT: %.loc16_28: type = ptr_type %Class [template = constants.%.3]
// CHECK:STDOUT: %next.loc16_17.1: %.3 = param next
// CHECK:STDOUT: @Make.%next: %.3 = bind_name next, %next.loc16_17.1
// CHECK:STDOUT: %Class.ref.loc16_34: type = name_ref Class, %Class.decl [template = constants.%Class]
// CHECK:STDOUT: @Make.%return: ref %Class = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %MakeReorder.decl: %MakeReorder.type = fn_decl @MakeReorder [template = constants.%MakeReorder] {
// CHECK:STDOUT: %int.make_type_32.loc20: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc20_19.1: type = value_of_initializer %int.make_type_32.loc20 [template = i32]
// CHECK:STDOUT: %.loc20_19.2: type = converted %int.make_type_32.loc20, %.loc20_19.1 [template = i32]
// CHECK:STDOUT: %n.loc20_16.1: i32 = param n
// CHECK:STDOUT: @MakeReorder.%n: i32 = bind_name n, %n.loc20_16.1
// CHECK:STDOUT: %Class.ref.loc20_30: type = name_ref Class, %Class.decl [template = constants.%Class]
// CHECK:STDOUT: %.loc20_35: type = ptr_type %Class [template = constants.%.3]
// CHECK:STDOUT: %next.loc20_24.1: %.3 = param next
// CHECK:STDOUT: @MakeReorder.%next: %.3 = bind_name next, %next.loc20_24.1
// CHECK:STDOUT: %Class.ref.loc20_41: type = name_ref Class, %Class.decl [template = constants.%Class]
// CHECK:STDOUT: @MakeReorder.%return: ref %Class = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc12_10.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc12_10.2: type = converted %int.make_type_32, %.loc12_10.1 [template = i32]
// CHECK:STDOUT: %.loc12_8: %.2 = field_decl n, element0 [template]
// CHECK:STDOUT: %Class.ref: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT: %.loc13_18: type = ptr_type %Class [template = constants.%.3]
// CHECK:STDOUT: %.loc13_11: %.4 = field_decl next, element1 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Class
// CHECK:STDOUT: .n = %.loc12_8
// CHECK:STDOUT: .next = %.loc13_11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Make(%n: i32, %next: %.3) -> %return: %Class {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %n.ref: i32 = name_ref n, %n
// CHECK:STDOUT: %next.ref: %.3 = name_ref next, %next
// CHECK:STDOUT: %.loc17_31.1: %.5 = struct_literal (%n.ref, %next.ref)
// CHECK:STDOUT: %.loc17_31.2: ref i32 = class_element_access %return, element0
// CHECK:STDOUT: %.loc17_31.3: init i32 = initialize_from %n.ref to %.loc17_31.2
// CHECK:STDOUT: %.loc17_31.4: ref %.3 = class_element_access %return, element1
// CHECK:STDOUT: %.loc17_31.5: init %.3 = initialize_from %next.ref to %.loc17_31.4
// CHECK:STDOUT: %.loc17_31.6: init %Class = class_init (%.loc17_31.3, %.loc17_31.5), %return
// CHECK:STDOUT: %.loc17_32: init %Class = converted %.loc17_31.1, %.loc17_31.6
// CHECK:STDOUT: return %.loc17_32 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeReorder(%n: i32, %next: %.3) -> %return: %Class {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %next.ref: %.3 = name_ref next, %next
// CHECK:STDOUT: %n.ref: i32 = name_ref n, %n
// CHECK:STDOUT: %.loc21_31.1: %.7 = struct_literal (%next.ref, %n.ref)
// CHECK:STDOUT: %.loc21_31.2: ref i32 = class_element_access %return, element1
// CHECK:STDOUT: %.loc21_31.3: init i32 = initialize_from %n.ref to %.loc21_31.2
// CHECK:STDOUT: %.loc21_31.4: ref %.3 = class_element_access %return, element0
// CHECK:STDOUT: %.loc21_31.5: init %.3 = initialize_from %next.ref to %.loc21_31.4
// CHECK:STDOUT: %.loc21_31.6: init %Class = class_init (%.loc21_31.3, %.loc21_31.5), %return
// CHECK:STDOUT: %.loc21_32: init %Class = converted %.loc21_31.1, %.loc21_31.6
// CHECK:STDOUT: return %.loc21_32 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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