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carbon-lang/toolchain/check/testdata/class/method.carbon
T
Jon Ross-Perkins 91f0c23124 Provide diagnostic locations for imported namespaces. (#3640)
Building on #3636 which handles the general import case, add special
casing for namespaces. Namespaces can be combined cross-IR, so it's a
little more complex.

The implementation adds import_id to the Namespace instruction as a
reference to find the original using the normal structure. This is
achieved by moving the name_id to NameScope to free up space.

---

I considered a few alternatives...

I considered adding import_id to NameScope, but:

1. It's more consistent with things such as Function or Class that
provide name_id on the info object rather than the instruction.
2. I thought it more likely that there would be more NameScope cases
that might want a name_id rather than the import_id, since ImportRef
will typically be used.

I considered putting the import source (cross-ref IR id + inst id) on
the NameScope versus a separate ImportRef, which seems like the
strongest argument towards the NameScope approach because it removes an
instruction. That just felt inconsistent though, and the overhead of
instruction-per-imported-namespace should be low (theoretically few
namespaces should be used). Plus I feel a bit odd adding two
generally-unused ids to NameScope.

A specialized Namespace structure could also have been created to store
the import_id, but that would add an indirection to the NameScope.
2024-01-24 18:00:32 +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
class Class {
fn F[self: Class]() -> i32;
fn G[addr self: Class*]() -> i32;
var k: i32;
}
fn Class.F[self: Class]() -> i32 {
return self.k;
}
fn Call(c: Class) -> i32 {
// TODO: The sem-ir for this call doesn't distinguish the `self` argument from
// the explicit arguments.
return c.F();
}
fn CallOnConstBoundMethod() -> i32 {
return ({.k = 1} as Class).F();
}
fn CallWithAddr() -> i32 {
var c: Class;
return c.G();
}
fn CallFThroughPointer(p: Class*) -> i32 {
return (*p).F();
}
fn CallGThroughPointer(p: Class*) -> i32 {
return (*p).G();
}
fn Make() -> Class;
fn CallFOnInitializingExpr() -> i32 {
return Make().F();
}
fn CallGOnInitializingExpr() -> i32 {
return Make().G();
}
// CHECK:STDOUT: --- method.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Class: type = class_type @Class [template]
// CHECK:STDOUT: %.1: type = ptr_type Class [template]
// CHECK:STDOUT: %.2: type = unbound_element_type Class, i32 [template]
// CHECK:STDOUT: %.3: type = struct_type {.k: i32} [template]
// CHECK:STDOUT: %.4: type = ptr_type {.k: i32} [template]
// CHECK:STDOUT: %.5: i32 = int_literal 1 [template]
// CHECK:STDOUT: %.6: Class = struct_value (%.5) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace {.Class = %Class.decl, .Call = %Call, .CallOnConstBoundMethod = %CallOnConstBoundMethod, .CallWithAddr = %CallWithAddr, .CallFThroughPointer = %CallFThroughPointer, .CallGThroughPointer = %CallGThroughPointer, .Make = %Make, .CallFOnInitializingExpr = %CallFOnInitializingExpr, .CallGOnInitializingExpr = %CallGOnInitializingExpr} [template]
// CHECK:STDOUT: %Class.decl = class_decl @Class, ()
// CHECK:STDOUT: %F: <function> = fn_decl @F [template]
// CHECK:STDOUT: %Call: <function> = fn_decl @Call [template]
// CHECK:STDOUT: %CallOnConstBoundMethod: <function> = fn_decl @CallOnConstBoundMethod [template]
// CHECK:STDOUT: %CallWithAddr: <function> = fn_decl @CallWithAddr [template]
// CHECK:STDOUT: %CallFThroughPointer: <function> = fn_decl @CallFThroughPointer [template]
// CHECK:STDOUT: %CallGThroughPointer: <function> = fn_decl @CallGThroughPointer [template]
// CHECK:STDOUT: %Make: <function> = fn_decl @Make [template]
// CHECK:STDOUT: %CallFOnInitializingExpr: <function> = fn_decl @CallFOnInitializingExpr [template]
// CHECK:STDOUT: %CallGOnInitializingExpr: <function> = fn_decl @CallGOnInitializingExpr [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class {
// CHECK:STDOUT: %F: <function> = fn_decl @F [template]
// CHECK:STDOUT: %G: <function> = fn_decl @G [template]
// CHECK:STDOUT: %.loc11: <unbound element of class Class> = field_decl k, element0 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F
// CHECK:STDOUT: .G = %G
// CHECK:STDOUT: .k = %.loc11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F[%self: Class]() -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %self.ref: Class = name_ref self, %self
// CHECK:STDOUT: %.loc15_14.1: ref i32 = class_element_access %self.ref, element0
// CHECK:STDOUT: %.loc15_14.2: i32 = bind_value %.loc15_14.1
// CHECK:STDOUT: return %.loc15_14.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G[addr %self: Class*]() -> i32;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Call(%c: Class) -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %c.ref: Class = name_ref c, %c
// CHECK:STDOUT: %.loc21_11: <bound method> = bound_method %c.ref, @Class.%F
// CHECK:STDOUT: %.loc21_13.1: init i32 = call %.loc21_11(%c.ref)
// CHECK:STDOUT: %.loc21_15: i32 = value_of_initializer %.loc21_13.1
// CHECK:STDOUT: %.loc21_13.2: i32 = converted %.loc21_13.1, %.loc21_15
// CHECK:STDOUT: return %.loc21_13.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallOnConstBoundMethod() -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc25_17: i32 = int_literal 1 [template = constants.%.5]
// CHECK:STDOUT: %.loc25_18.1: {.k: i32} = struct_literal (%.loc25_17)
// CHECK:STDOUT: %Class.ref: type = name_ref Class, constants.%Class [template = constants.%Class]
// CHECK:STDOUT: %.loc25_18.2: ref Class = temporary_storage
// CHECK:STDOUT: %.loc25_18.3: ref i32 = class_element_access %.loc25_18.2, element0
// CHECK:STDOUT: %.loc25_18.4: init i32 = initialize_from %.loc25_17 to %.loc25_18.3 [template = constants.%.5]
// CHECK:STDOUT: %.loc25_18.5: init Class = class_init (%.loc25_18.4), %.loc25_18.2 [template = constants.%.6]
// CHECK:STDOUT: %.loc25_18.6: ref Class = temporary %.loc25_18.2, %.loc25_18.5
// CHECK:STDOUT: %.loc25_18.7: ref Class = converted %.loc25_18.1, %.loc25_18.6
// CHECK:STDOUT: %.loc25_29: <bound method> = bound_method %.loc25_18.7, @Class.%F
// CHECK:STDOUT: %.loc25_18.8: Class = bind_value %.loc25_18.7
// CHECK:STDOUT: %.loc25_31.1: init i32 = call %.loc25_29(%.loc25_18.8)
// CHECK:STDOUT: %.loc25_33: i32 = value_of_initializer %.loc25_31.1
// CHECK:STDOUT: %.loc25_31.2: i32 = converted %.loc25_31.1, %.loc25_33
// CHECK:STDOUT: return %.loc25_31.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallWithAddr() -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Class.ref: type = name_ref Class, constants.%Class [template = constants.%Class]
// CHECK:STDOUT: %c.var: ref Class = var c
// CHECK:STDOUT: %c: ref Class = bind_name c, %c.var
// CHECK:STDOUT: %c.ref: ref Class = name_ref c, %c
// CHECK:STDOUT: %.loc30_11: <bound method> = bound_method %c.ref, @Class.%G
// CHECK:STDOUT: %.loc30_10: Class* = addr_of %c.ref
// CHECK:STDOUT: %.loc30_13.1: init i32 = call %.loc30_11(%.loc30_10)
// CHECK:STDOUT: %.loc30_15: i32 = value_of_initializer %.loc30_13.1
// CHECK:STDOUT: %.loc30_13.2: i32 = converted %.loc30_13.1, %.loc30_15
// CHECK:STDOUT: return %.loc30_13.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallFThroughPointer(%p: Class*) -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %p.ref: Class* = name_ref p, %p
// CHECK:STDOUT: %.loc34_11.1: ref Class = deref %p.ref
// CHECK:STDOUT: %.loc34_14: <bound method> = bound_method %.loc34_11.1, @Class.%F
// CHECK:STDOUT: %.loc34_11.2: Class = bind_value %.loc34_11.1
// CHECK:STDOUT: %.loc34_16.1: init i32 = call %.loc34_14(%.loc34_11.2)
// CHECK:STDOUT: %.loc34_18: i32 = value_of_initializer %.loc34_16.1
// CHECK:STDOUT: %.loc34_16.2: i32 = converted %.loc34_16.1, %.loc34_18
// CHECK:STDOUT: return %.loc34_16.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallGThroughPointer(%p: Class*) -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %p.ref: Class* = name_ref p, %p
// CHECK:STDOUT: %.loc38_11.1: ref Class = deref %p.ref
// CHECK:STDOUT: %.loc38_14: <bound method> = bound_method %.loc38_11.1, @Class.%G
// CHECK:STDOUT: %.loc38_11.2: Class* = addr_of %.loc38_11.1
// CHECK:STDOUT: %.loc38_16.1: init i32 = call %.loc38_14(%.loc38_11.2)
// CHECK:STDOUT: %.loc38_18: i32 = value_of_initializer %.loc38_16.1
// CHECK:STDOUT: %.loc38_16.2: i32 = converted %.loc38_16.1, %.loc38_18
// CHECK:STDOUT: return %.loc38_16.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Make() -> %return: Class;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallFOnInitializingExpr() -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Make.ref: <function> = name_ref Make, file.%Make [template = file.%Make]
// CHECK:STDOUT: %.loc44_14.1: ref Class = temporary_storage
// CHECK:STDOUT: %.loc44_14.2: init Class = call %Make.ref() to %.loc44_14.1
// CHECK:STDOUT: %.loc44_14.3: ref Class = temporary %.loc44_14.1, %.loc44_14.2
// CHECK:STDOUT: %.loc44_16: <bound method> = bound_method %.loc44_14.3, @Class.%F
// CHECK:STDOUT: %.loc44_14.4: Class = bind_value %.loc44_14.3
// CHECK:STDOUT: %.loc44_18.1: init i32 = call %.loc44_16(%.loc44_14.4)
// CHECK:STDOUT: %.loc44_20: i32 = value_of_initializer %.loc44_18.1
// CHECK:STDOUT: %.loc44_18.2: i32 = converted %.loc44_18.1, %.loc44_20
// CHECK:STDOUT: return %.loc44_18.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallGOnInitializingExpr() -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Make.ref: <function> = name_ref Make, file.%Make [template = file.%Make]
// CHECK:STDOUT: %.loc48_14.1: ref Class = temporary_storage
// CHECK:STDOUT: %.loc48_14.2: init Class = call %Make.ref() to %.loc48_14.1
// CHECK:STDOUT: %.loc48_14.3: ref Class = temporary %.loc48_14.1, %.loc48_14.2
// CHECK:STDOUT: %.loc48_16: <bound method> = bound_method %.loc48_14.3, @Class.%G
// CHECK:STDOUT: %.loc48_14.4: Class* = addr_of %.loc48_14.3
// CHECK:STDOUT: %.loc48_18.1: init i32 = call %.loc48_16(%.loc48_14.4)
// CHECK:STDOUT: %.loc48_20: i32 = value_of_initializer %.loc48_18.1
// CHECK:STDOUT: %.loc48_18.2: i32 = converted %.loc48_18.1, %.loc48_20
// CHECK:STDOUT: return %.loc48_18.2
// CHECK:STDOUT: }
// CHECK:STDOUT: