carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-10-05 22:02:55 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity

If a name is not found in a class, perform lookup into base classes. (#3502)

Browse Source 
This builds out a little infrastructure for one name scope to `extend`
another. We'll need more refinement here to cover other cases, but this
should provide some foundation for that future work.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
This commit is contained in:
Richard Smith
2023-12-14 19:51:55 +00:00
committed by GitHub
co-authored by Jon Ross-Perkins
parent 23c7d7dd99
commit de0c02ddae
28 changed files with 892 additions and 132 deletions
Download Patch File Download Diff File Expand all files Collapse all files
toolchain/check/testdata/class/fail_base_method_define.carbon
Vendored
+87
View File
@@ -0,0 +1,87 @@
// 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
base class B {
fn F();
class C {
fn F();
}
}
class D {
extend base: B;
}
// TODO: This should be rejected.
fn D.F() {}
// CHECK:STDERR: fail_base_method_define.carbon:[[@LINE+3]]:6: ERROR: Name `C` not found.
// CHECK:STDERR: fn D.C.F() {}
// CHECK:STDERR: ^
fn D.C.F() {}
// CHECK:STDOUT: --- fail_base_method_define.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.loc12_3.1: type = struct_type {}
// CHECK:STDOUT: %.loc12_3.2: type = tuple_type ()
// CHECK:STDOUT: %.loc7: type = ptr_type {}
// CHECK:STDOUT: %.loc17: type = struct_type {.base: B}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace {.B = %B.decl, .D = %D.decl}
// CHECK:STDOUT: %B.decl = class_decl @B, ()
// CHECK:STDOUT: %B: type = class_type @B
// CHECK:STDOUT: %D.decl = class_decl @D, ()
// CHECK:STDOUT: %D: type = class_type @D
// CHECK:STDOUT: %F: <function> = fn_decl @F.3
// CHECK:STDOUT: %.loc25: <function> = fn_decl @.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @B {
// CHECK:STDOUT: %F: <function> = fn_decl @F.1
// CHECK:STDOUT: %C.decl = class_decl @C, ()
// CHECK:STDOUT: %C: type = class_type @C
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %F: <function> = fn_decl @F.2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @D {
// CHECK:STDOUT: %B.ref: type = name_ref B, file.%B
// CHECK:STDOUT: %.loc16_17.1: type = unbound_element_type D, B
// CHECK:STDOUT: %.loc16_17.2: <unbound element of class D> = base_decl B, element0
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .base = %.loc16_17.2
// CHECK:STDOUT: .F = file.%F
// CHECK:STDOUT: extend name_scope1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.1();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.3() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @.1() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: