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Add an interface for initialization of vars without an explicit initializer (#6934)

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When a `var` is not explicitly given an initializer, initialize it in
one of two ways:

* If its type implements the new interface `Core.Default`, call
`Core.Default.Op` to initialize it.
* Otherwise, if its type implements `UnformedInit`, leave it in an
unformed state. For now, this is always an uninitialized state, but that
will change in the future.
* If neither of those apply, the `var` declaration is ill-formed.

This is a step towards implementing leads decision #6739 and proposals
#257 and #5913.

Assisted-by: Gemini 3.1 Pro via Antigravity

---------

Co-authored-by: Geoff Romer <gromer@google.com>
This commit is contained in:
Richard Smith
2026-03-19 23:46:06 +00:00
committed by GitHub
co-authored by Geoff Romer
parent fd2d210c63
commit ce50f181f1
146 changed files with 5226 additions and 3535 deletions
Download Patch File Download Diff File Expand all files Collapse all files
toolchain/check/testdata/interop/cpp/template/argument_count.carbon
Vendored
+81 -3
View File
@@ -122,29 +122,70 @@ var too_many: Cpp.FixedSizePack(Cpp.A, Cpp.A).Inner(Cpp.B, Cpp.B, Cpp.B);
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TwoTypes: type = class_type @TwoTypes [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %TwoTypes [concrete]
// CHECK:STDOUT: %pattern_type.2da: type = pattern_type %TwoTypes [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.679: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TwoTypes) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value %TwoTypes, (%DefaultOrUnformed.impl_witness.679) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %x.patt: %pattern_type = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %x.var_patt: %pattern_type = var_pattern %x.patt [concrete]
// CHECK:STDOUT: %x.patt: %pattern_type.2da = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %x.var_patt: %pattern_type.2da = var_pattern %x.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.var: ref %TwoTypes = var %x.var_patt [concrete]
// CHECK:STDOUT: %x: ref %TwoTypes = ref_binding x, %x.var [concrete = %x.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value constants.%TwoTypes, (constants.%DefaultOrUnformed.impl_witness.679) [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %.loc7_34.1: %DefaultOrUnformed.type = converted constants.%TwoTypes, %DefaultOrUnformed.facet [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %as_type: type = facet_access_type %.loc7_34.1 [concrete = constants.%TwoTypes]
// CHECK:STDOUT: %.loc7_34.2: type = converted %.loc7_34.1, %as_type [concrete = constants.%TwoTypes]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc7_1: ref %TwoTypes = splice_block file.%x.var [concrete = file.%x.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call: init %TwoTypes to %.loc7_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn()
// CHECK:STDOUT: assign file.%x.var, %T.as.DefaultOrUnformed.impl.Op.call
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- pack.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TypePack.49edc4.1: type = class_type @TypePack.1 [concrete]
// CHECK:STDOUT: %pattern_type.9db866.1: type = pattern_type %TypePack.49edc4.1 [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.bca864.1: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TypePack.49edc4.1) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet.95dbcc.1: %DefaultOrUnformed.type = facet_value %TypePack.49edc4.1, (%DefaultOrUnformed.impl_witness.bca864.1) [concrete]
// CHECK:STDOUT: %TypePack.49edc4.2: type = class_type @TypePack.2 [concrete]
// CHECK:STDOUT: %pattern_type.9db866.2: type = pattern_type %TypePack.49edc4.2 [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.bca864.2: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TypePack.49edc4.2) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet.95dbcc.2: %DefaultOrUnformed.type = facet_value %TypePack.49edc4.2, (%DefaultOrUnformed.impl_witness.bca864.2) [concrete]
// CHECK:STDOUT: %TypePack.49edc4.3: type = class_type @TypePack.3 [concrete]
// CHECK:STDOUT: %pattern_type.9db866.3: type = pattern_type %TypePack.49edc4.3 [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.bca864.3: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TypePack.49edc4.3) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet.95dbcc.3: %DefaultOrUnformed.type = facet_value %TypePack.49edc4.3, (%DefaultOrUnformed.impl_witness.bca864.3) [concrete]
// CHECK:STDOUT: %TypePack.49edc4.4: type = class_type @TypePack.4 [concrete]
// CHECK:STDOUT: %pattern_type.9db866.4: type = pattern_type %TypePack.49edc4.4 [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.bca864.4: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TypePack.49edc4.4) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet.95dbcc.4: %DefaultOrUnformed.type = facet_value %TypePack.49edc4.4, (%DefaultOrUnformed.impl_witness.bca864.4) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
@@ -174,3 +215,40 @@ var too_many: Cpp.FixedSizePack(Cpp.A, Cpp.A).Inner(Cpp.B, Cpp.B, Cpp.B);
// CHECK:STDOUT: %a3: ref %TypePack.49edc4.4 = ref_binding a3, %a3.var [concrete = %a3.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %DefaultOrUnformed.facet.loc7: %DefaultOrUnformed.type = facet_value constants.%TypePack.49edc4.1, (constants.%DefaultOrUnformed.impl_witness.bca864.1) [concrete = constants.%DefaultOrUnformed.facet.95dbcc.1]
// CHECK:STDOUT: %.loc7_23.1: %DefaultOrUnformed.type = converted constants.%TypePack.49edc4.1, %DefaultOrUnformed.facet.loc7 [concrete = constants.%DefaultOrUnformed.facet.95dbcc.1]
// CHECK:STDOUT: %as_type.loc7: type = facet_access_type %.loc7_23.1 [concrete = constants.%TypePack.49edc4.1]
// CHECK:STDOUT: %.loc7_23.2: type = converted %.loc7_23.1, %as_type.loc7 [concrete = constants.%TypePack.49edc4.1]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc7_1: ref %TypePack.49edc4.1 = splice_block file.%a0.var [concrete = file.%a0.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call.loc7: init %TypePack.49edc4.1 to %.loc7_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn.1()
// CHECK:STDOUT: assign file.%a0.var, %T.as.DefaultOrUnformed.impl.Op.call.loc7
// CHECK:STDOUT: %DefaultOrUnformed.facet.loc8: %DefaultOrUnformed.type = facet_value constants.%TypePack.49edc4.2, (constants.%DefaultOrUnformed.impl_witness.bca864.2) [concrete = constants.%DefaultOrUnformed.facet.95dbcc.2]
// CHECK:STDOUT: %.loc8_28.1: %DefaultOrUnformed.type = converted constants.%TypePack.49edc4.2, %DefaultOrUnformed.facet.loc8 [concrete = constants.%DefaultOrUnformed.facet.95dbcc.2]
// CHECK:STDOUT: %as_type.loc8: type = facet_access_type %.loc8_28.1 [concrete = constants.%TypePack.49edc4.2]
// CHECK:STDOUT: %.loc8_28.2: type = converted %.loc8_28.1, %as_type.loc8 [concrete = constants.%TypePack.49edc4.2]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc8_1: ref %TypePack.49edc4.2 = splice_block file.%a1.var [concrete = file.%a1.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call.loc8: init %TypePack.49edc4.2 to %.loc8_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn.2()
// CHECK:STDOUT: assign file.%a1.var, %T.as.DefaultOrUnformed.impl.Op.call.loc8
// CHECK:STDOUT: %DefaultOrUnformed.facet.loc9: %DefaultOrUnformed.type = facet_value constants.%TypePack.49edc4.3, (constants.%DefaultOrUnformed.impl_witness.bca864.3) [concrete = constants.%DefaultOrUnformed.facet.95dbcc.3]
// CHECK:STDOUT: %.loc9_35.1: %DefaultOrUnformed.type = converted constants.%TypePack.49edc4.3, %DefaultOrUnformed.facet.loc9 [concrete = constants.%DefaultOrUnformed.facet.95dbcc.3]
// CHECK:STDOUT: %as_type.loc9: type = facet_access_type %.loc9_35.1 [concrete = constants.%TypePack.49edc4.3]
// CHECK:STDOUT: %.loc9_35.2: type = converted %.loc9_35.1, %as_type.loc9 [concrete = constants.%TypePack.49edc4.3]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc9_1: ref %TypePack.49edc4.3 = splice_block file.%a2.var [concrete = file.%a2.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call.loc9: init %TypePack.49edc4.3 to %.loc9_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn.3()
// CHECK:STDOUT: assign file.%a2.var, %T.as.DefaultOrUnformed.impl.Op.call.loc9
// CHECK:STDOUT: %DefaultOrUnformed.facet.loc10: %DefaultOrUnformed.type = facet_value constants.%TypePack.49edc4.4, (constants.%DefaultOrUnformed.impl_witness.bca864.4) [concrete = constants.%DefaultOrUnformed.facet.95dbcc.4]
// CHECK:STDOUT: %.loc10_42.1: %DefaultOrUnformed.type = converted constants.%TypePack.49edc4.4, %DefaultOrUnformed.facet.loc10 [concrete = constants.%DefaultOrUnformed.facet.95dbcc.4]
// CHECK:STDOUT: %as_type.loc10: type = facet_access_type %.loc10_42.1 [concrete = constants.%TypePack.49edc4.4]
// CHECK:STDOUT: %.loc10_42.2: type = converted %.loc10_42.1, %as_type.loc10 [concrete = constants.%TypePack.49edc4.4]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc10_1: ref %TypePack.49edc4.4 = splice_block file.%a3.var [concrete = file.%a3.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call.loc10: init %TypePack.49edc4.4 to %.loc10_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn.4()
// CHECK:STDOUT: assign file.%a3.var, %T.as.DefaultOrUnformed.impl.Op.call.loc10
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
toolchain/check/testdata/interop/cpp/template/non_type_param.carbon
Vendored
+27 -8
View File
@@ -118,7 +118,7 @@ library "[[@TEST_NAME]]";
import Cpp library "templates.h";
//@dump-sem-ir-begin
var x: Cpp.TwoNonType(1, 2);
var x: Cpp.TwoNonType(1, 2) = {};
//@dump-sem-ir-end
// --- dependent.carbon
@@ -129,7 +129,7 @@ import Cpp library "templates.h";
//@dump-sem-ir-begin
var x: Cpp.DependentNonType(i32, 123) = Cpp.MakeDependentNonType123();
var y: Cpp.DependentNonType(i32*, &Cpp.StaticInt);
var y: Cpp.DependentNonType(i32*, &Cpp.StaticInt) = {};
//@dump-sem-ir-end
// --- fail_type_argument.carbon
@@ -139,13 +139,13 @@ library "[[@TEST_NAME]]";
import Cpp library "templates.h";
// CHECK:STDERR: fail_type_argument.carbon:[[@LINE+7]]:26: error: cannot implicitly convert expression of type `type` to `i32` [ConversionFailure]
// CHECK:STDERR: var x: Cpp.TwoNonType(1, Cpp.A);
// CHECK:STDERR: var x: Cpp.TwoNonType(1, Cpp.A) = {};
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_type_argument.carbon:[[@LINE+4]]:26: note: type `type` does not implement interface `Core.ImplicitAs(i32)` [MissingImplInMemberAccessInContext]
// CHECK:STDERR: var x: Cpp.TwoNonType(1, Cpp.A);
// CHECK:STDERR: var x: Cpp.TwoNonType(1, Cpp.A) = {};
// CHECK:STDERR: ^~~~~
// CHECK:STDERR:
var x: Cpp.TwoNonType(1, Cpp.A);
var x: Cpp.TwoNonType(1, Cpp.A) = {};
// --- fail_no_conversion.carbon
@@ -156,13 +156,13 @@ import Cpp library "templates.h";
var n: i32;
// CHECK:STDERR: fail_no_conversion.carbon:[[@LINE+7]]:26: error: cannot implicitly convert expression of type `i32*` to `i32` [ConversionFailure]
// CHECK:STDERR: var x: Cpp.TwoNonType(1, &n);
// CHECK:STDERR: var x: Cpp.TwoNonType(1, &n) = {};
// CHECK:STDERR: ^~
// CHECK:STDERR: fail_no_conversion.carbon:[[@LINE+4]]:26: note: type `i32*` does not implement interface `Core.ImplicitAs(i32)` [MissingImplInMemberAccessInContext]
// CHECK:STDERR: var x: Cpp.TwoNonType(1, &n);
// CHECK:STDERR: var x: Cpp.TwoNonType(1, &n) = {};
// CHECK:STDERR: ^~
// CHECK:STDERR:
var x: Cpp.TwoNonType(1, &n);
var x: Cpp.TwoNonType(1, &n) = {};
// --- dependent_parameter_pack.carbon
@@ -182,7 +182,10 @@ fn G() -> i32 {
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TwoNonType: type = class_type @TwoNonType [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %pattern_type.8a6: type = pattern_type %TwoNonType [concrete]
// CHECK:STDOUT: %empty_struct: %empty_struct_type = struct_value () [concrete]
// CHECK:STDOUT: %TwoNonType.val: %TwoNonType = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
@@ -194,6 +197,15 @@ fn G() -> i32 {
// CHECK:STDOUT: %x: ref %TwoNonType = ref_binding x, %x.var [concrete = %x.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc7_32.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
// CHECK:STDOUT: %.loc7_32.2: init %TwoNonType to file.%x.var = class_init () [concrete = constants.%TwoNonType.val]
// CHECK:STDOUT: %.loc7_1: init %TwoNonType = converted %.loc7_32.1, %.loc7_32.2 [concrete = constants.%TwoNonType.val]
// CHECK:STDOUT: assign file.%x.var, %.loc7_1
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- dependent.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
@@ -204,6 +216,7 @@ fn G() -> i32 {
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %DependentNonType.794fcf.1: type = class_type @DependentNonType.1 [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %pattern_type.b95a71.1: type = pattern_type %DependentNonType.794fcf.1 [concrete]
// CHECK:STDOUT: %MakeDependentNonType123.cpp_overload_set.type: type = cpp_overload_set_type @MakeDependentNonType123.cpp_overload_set [concrete]
// CHECK:STDOUT: %MakeDependentNonType123.cpp_overload_set.value: %MakeDependentNonType123.cpp_overload_set.type = cpp_overload_set_value @MakeDependentNonType123.cpp_overload_set [concrete]
@@ -212,6 +225,8 @@ fn G() -> i32 {
// CHECK:STDOUT: %MakeDependentNonType123__carbon_thunk: %MakeDependentNonType123__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %DependentNonType.794fcf.2: type = class_type @DependentNonType.2 [concrete]
// CHECK:STDOUT: %pattern_type.b95a71.2: type = pattern_type %DependentNonType.794fcf.2 [concrete]
// CHECK:STDOUT: %empty_struct: %empty_struct_type = struct_value () [concrete]
// CHECK:STDOUT: %DependentNonType.val: %DependentNonType.794fcf.2 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
@@ -257,6 +272,10 @@ fn G() -> i32 {
// CHECK:STDOUT: %MakeDependentNonType123__carbon_thunk.call: init %empty_tuple.type = call imports.%MakeDependentNonType123__carbon_thunk.decl(%addr)
// CHECK:STDOUT: %.loc7_69: init %DependentNonType.794fcf.1 to %.loc7_1 = mark_in_place_init %MakeDependentNonType123__carbon_thunk.call
// CHECK:STDOUT: assign file.%x.var, %.loc7_69
// CHECK:STDOUT: %.loc8_54.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
// CHECK:STDOUT: %.loc8_54.2: init %DependentNonType.794fcf.2 to file.%y.var = class_init () [concrete = constants.%DependentNonType.val]
// CHECK:STDOUT: %.loc8_1: init %DependentNonType.794fcf.2 = converted %.loc8_54.1, %.loc8_54.2 [concrete = constants.%DependentNonType.val]
// CHECK:STDOUT: assign file.%y.var, %.loc8_1
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
toolchain/check/testdata/interop/cpp/template/template_template_param.carbon
Vendored
+33 -3
View File
@@ -84,18 +84,42 @@ var x: Cpp.TwoTemplates(Cpp.A, true);
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TwoTemplates: type = class_type @TwoTemplates [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %TwoTemplates [concrete]
// CHECK:STDOUT: %pattern_type.2b7: type = pattern_type %TwoTemplates [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.cea: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TwoTemplates) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value %TwoTemplates, (%DefaultOrUnformed.impl_witness.cea) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %x.patt: %pattern_type = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %x.var_patt: %pattern_type = var_pattern %x.patt [concrete]
// CHECK:STDOUT: %x.patt: %pattern_type.2b7 = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %x.var_patt: %pattern_type.2b7 = var_pattern %x.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.var: ref %TwoTemplates = var %x.var_patt [concrete]
// CHECK:STDOUT: %x: ref %TwoTemplates = ref_binding x, %x.var [concrete = %x.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value constants.%TwoTemplates, (constants.%DefaultOrUnformed.impl_witness.cea) [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %.loc7_38.1: %DefaultOrUnformed.type = converted constants.%TwoTemplates, %DefaultOrUnformed.facet [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %as_type: type = facet_access_type %.loc7_38.1 [concrete = constants.%TwoTemplates]
// CHECK:STDOUT: %.loc7_38.2: type = converted %.loc7_38.1, %as_type [concrete = constants.%TwoTemplates]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc7_1: ref %TwoTemplates = splice_block file.%x.var [concrete = file.%x.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call: init %TwoTemplates to %.loc7_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn()
// CHECK:STDOUT: assign file.%x.var, %T.as.DefaultOrUnformed.impl.Op.call
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_template_mismatch.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: file {
@@ -107,3 +131,9 @@ var x: Cpp.TwoTemplates(Cpp.A, true);
// CHECK:STDOUT: %x: ref <error> = ref_binding x, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: assign file.%x.var, <error>
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
toolchain/check/testdata/interop/cpp/template/type_param.carbon
Vendored
+64 -16
View File
@@ -68,23 +68,18 @@ var x: Cpp.TwoTypes(Cpp.A, {});
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TwoTypes: type = class_type @TwoTypes [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %TwoTypes [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %x.patt: %pattern_type = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %x.var_patt: %pattern_type = var_pattern %x.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.var: ref %TwoTypes = var %x.var_patt [concrete]
// CHECK:STDOUT: %x: ref %TwoTypes = ref_binding x, %x.var [concrete = %x.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- char.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TwoTypes: type = class_type @TwoTypes [concrete]
// CHECK:STDOUT: %pattern_type.2da: type = pattern_type %TwoTypes [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.679: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TwoTypes) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value %TwoTypes, (%DefaultOrUnformed.impl_witness.679) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
@@ -96,3 +91,56 @@ var x: Cpp.TwoTypes(Cpp.A, {});
// CHECK:STDOUT: %x: ref %TwoTypes = ref_binding x, %x.var [concrete = %x.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value constants.%TwoTypes, (constants.%DefaultOrUnformed.impl_witness.679) [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %.loc7_34.1: %DefaultOrUnformed.type = converted constants.%TwoTypes, %DefaultOrUnformed.facet [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %as_type: type = facet_access_type %.loc7_34.1 [concrete = constants.%TwoTypes]
// CHECK:STDOUT: %.loc7_34.2: type = converted %.loc7_34.1, %as_type [concrete = constants.%TwoTypes]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc7_1: ref %TwoTypes = splice_block file.%x.var [concrete = file.%x.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call: init %TwoTypes to %.loc7_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn()
// CHECK:STDOUT: assign file.%x.var, %T.as.DefaultOrUnformed.impl.Op.call
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- char.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TwoTypes: type = class_type @TwoTypes [concrete]
// CHECK:STDOUT: %pattern_type.2da: type = pattern_type %TwoTypes [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.679: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%TwoTypes) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value %TwoTypes, (%DefaultOrUnformed.impl_witness.679) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %x.patt: %pattern_type.2da = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %x.var_patt: %pattern_type.2da = var_pattern %x.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.var: ref %TwoTypes = var %x.var_patt [concrete]
// CHECK:STDOUT: %x: ref %TwoTypes = ref_binding x, %x.var [concrete = %x.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value constants.%TwoTypes, (constants.%DefaultOrUnformed.impl_witness.679) [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %.loc7_32.1: %DefaultOrUnformed.type = converted constants.%TwoTypes, %DefaultOrUnformed.facet [concrete = constants.%DefaultOrUnformed.facet]
// CHECK:STDOUT: %as_type: type = facet_access_type %.loc7_32.1 [concrete = constants.%TwoTypes]
// CHECK:STDOUT: %.loc7_32.2: type = converted %.loc7_32.1, %as_type [concrete = constants.%TwoTypes]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %.loc7_1: ref %TwoTypes = splice_block file.%x.var [concrete = file.%x.var] {}
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.call: init %TwoTypes to %.loc7_1 = call %T.as.DefaultOrUnformed.impl.Op.specific_fn()
// CHECK:STDOUT: assign file.%x.var, %T.as.DefaultOrUnformed.impl.Op.call
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: