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109e39c75c2a96083f5045d654f8750dce516c3f
carbon-lang/toolchain/check
T
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Ivana Ivanovska 109e39c75c Add support for nullptr literals in macros (#6426) 
Adding support for macros that evaluate to nullptr literal.

Demo:

```c++
// macros.h
void foo(int a[2]);
#define MyNullPtr nullptr
```
```c++
// macros.cpp
void foo(int a[2]) {
  if (!a) {
    printf("array a is nullptr\n");
    return;
  }
  printf("a[0] = %d \n", a[0]);
}
```

```c++
// main.carbon

library "Main";

import Cpp library "macros.h";

fn Run() -> i32 {
  Cpp.foo(Cpp.MyNullPtr);
  return 0;
}
```

```
$ clang -c macros.cpp;
$ bazel-bin/toolchain/carbon compile main.carbon
$ bazel-bin/toolchain/carbon link macros.o main.o \--output=demo_carbon
$ ./demo_carbon
array a is nullptr
```

Part of #6303
2025-11-24 21:03:35 +00:00
..
cpp
Add support for nullptr literals in macros (#6426)
2025-11-24 21:03:35 +00:00
fuzzer_corpus
Change array syntax from [T; N] to array(T, N) (#4981)
2025-02-20 22:42:47 +00:00
testdata
Add support for nullptr literals in macros (#6426)
2025-11-24 21:03:35 +00:00
action.cpp
Clean up singleton TypeId use (#6300)
2025-10-30 22:50:59 +00:00
action.h
Even more usage of TypeInstId (#5296)
2025-04-11 21:47:43 +00:00
BUILD
Add support for more complex object-like macros (#6338)
2025-11-12 17:06:39 +00:00
call.cpp
Support ref tags on arguments to ref params (#6312)
2025-11-11 20:30:19 +00:00
call.h
Add PerformCallToCppFunction() which calls simplified version of PerformCppOverloadResolution() before calling PerformCallToFunction() (#6122)
2025-09-29 14:26:23 +00:00
check_fuzzer.cpp
Switch Driver back to parameters for construction (#4849)
2025-01-27 23:48:44 +00:00
check_unit.cpp
Avoid crashing when an impl decl has a missing definition (#6349)
2025-11-13 17:54:49 +00:00
check_unit.h
Switch class to use a blanket impl for Destroy (#6125)
2025-09-29 16:05:06 +00:00
check.cpp
Support import Cpp; to import Cpp namespace for using C++ builtins (#6320)
2025-11-06 08:45:28 +00:00
check.h
Switch class to use a blanket impl for Destroy (#6125)
2025-09-29 16:05:06 +00:00
class.cpp
Mark Check::Context::insts() as const and use it in more use cases (#6093)
2025-09-18 13:04:18 +00:00
class.h
Vtable support for generics (#5793)
2025-07-11 22:29:10 +00:00
context.cpp
Support ref tags on arguments to ref params (#6312)
2025-11-11 20:30:19 +00:00
context.h
Support ref tags on arguments to ref params (#6312)
2025-11-11 20:30:19 +00:00
control_flow.cpp
Tag destruction as desugaring (#5790)
2025-07-10 21:21:19 +00:00
control_flow.h
Handle destruction for return statements (#5785)
2025-07-10 16:32:39 +00:00
convert.cpp
Switch GetExprCategory to be table-driven. (#6371)
2025-11-20 00:09:10 +00:00
convert.h
Use inline constexpr where appropriate. (#6374)
2025-11-14 13:50:56 +00:00
decl_introducer_state.h
Allow extend final impl as for impl declarations (#5345)
2025-04-23 15:20:18 +00:00
decl_name_stack.cpp
Defer building thunks until the end of the enclosing definition. (#5403)
2025-05-07 22:20:39 +00:00
decl_name_stack.h
Defer building thunks until the end of the enclosing definition. (#5403)
2025-05-07 22:20:39 +00:00
deduce.cpp
Finish renaming BindName and related insts. (#6281)
2025-10-28 17:17:38 +00:00
deduce.h
Fearlessly hold references into ValueStore again (#5589)
2025-06-03 18:07:23 +00:00
deferred_definition_worklist.cpp
Track pending thunks on the deferred definition worklist. (#5609)
2025-06-10 22:09:31 +00:00
deferred_definition_worklist.h
Track pending thunks on the deferred definition worklist. (#5609)
2025-06-10 22:09:31 +00:00
diagnostic_emitter.cpp
Switch to representing FloatLiteralType as a RealId. (#5944)
2025-08-12 22:08:07 +00:00
diagnostic_emitter.h
Expand use of CheckIRId stores (#5820)
2025-07-21 20:02:27 +00:00
diagnostic_helpers.h
Use explicit(false) for implicit construction (#6039)
2025-09-10 13:47:59 +00:00
dump.cpp
Add dumping for NamedConstraintId and shorten untagged id printing (#6319)
2025-11-05 21:36:42 +00:00
eval_inst.cpp
Allow deduction of tuple and struct literals as symbolic generic facet types (#6365)
2025-11-13 20:17:44 +00:00
eval_inst.h
Use inline constexpr where appropriate. (#6374)
2025-11-14 13:50:56 +00:00
eval.cpp
Type completion of facet types is separate from Identifying (#6385)
2025-11-21 22:28:08 +00:00
eval.h
Remove the SemIRLoc typedef (#5299)
2025-04-14 14:28:15 +00:00
facet_type.cpp
Type completion of facet types is separate from Identifying (#6385)
2025-11-21 22:28:08 +00:00
facet_type.h
Finish renaming BindName and related insts. (#6281)
2025-10-28 17:17:38 +00:00
full_pattern_stack.h
Clean up handling of Call params (#5061)
2025-03-04 21:01:59 +00:00
function.cpp
Make use of new ArrayRef::consume_* functions. (#5975)
2025-08-21 21:41:53 +00:00
function.h
Track pending thunks on the deferred definition worklist. (#5609)
2025-06-10 22:09:31 +00:00
generic_region_stack.cpp
Build generic eval blocks incrementally (#5313)
2025-05-01 20:24:15 +00:00
generic_region_stack.h
Build generic eval blocks incrementally (#5313)
2025-05-01 20:24:15 +00:00
generic.cpp
Finish renaming BindName and related insts. (#6281)
2025-10-28 17:17:38 +00:00
generic.h
Initial support for empty named constraints (#6245)
2025-10-22 18:26:32 +00:00
global_init.cpp
[Refactor] Move call_params_id from EntityBase to FunctionFields. (#5146)
2025-03-18 23:49:24 +00:00
global_init.h
Split global init out from InstBlockStack. (#4101)
2024-07-03 17:49:47 +00:00
handle_alias.cpp
Finish renaming BindName and related insts. (#6281)
2025-10-28 17:17:38 +00:00
handle_array.cpp
Construct LocId from InstId directly (explicitly) instead of doing lookups when possible (#5355)
2025-04-28 19:06:24 +00:00
handle_binding_pattern.cpp
Remove support for addr (#6375)
2025-11-18 19:48:58 +00:00
handle_call_expr.cpp
Support ref tags on arguments to ref params (#6312)
2025-11-11 20:30:19 +00:00
handle_choice.cpp
Use the value representation of T as that of MaybeUnformed(T) where possible (#6334)
2025-11-07 16:25:27 +00:00
handle_class.cpp
Switch class to use a blanket impl for Destroy (#6125)
2025-09-29 16:05:06 +00:00
handle_codeblock.cpp
Detect control flow in entities nested inside functions (#5336)
2025-04-23 19:03:53 +00:00
handle_export.cpp
Construct LocId from InstId directly (explicitly) instead of doing lookups when possible (#5355)
2025-04-28 19:06:24 +00:00
handle_expr_statement.cpp
Convert discarded calls in thunks. (#5452)
2025-05-09 16:35:28 +00:00
handle_file.cpp
Rename check handlers to HandleParseNode overloads. (#4121)
2024-07-12 22:38:06 +00:00
handle_function.cpp
Switch the prelude to use ref instead of addr (#6359)
2025-11-14 00:40:26 +00:00
handle_if_expr.cpp
Detect control flow in entities nested inside functions (#5336)
2025-04-23 19:03:53 +00:00
handle_if_statement.cpp
Refactor AddInst-family functions to their own file (#4941)
2025-02-14 19:44:36 +00:00
handle_impl.cpp
Generate a RequireDecl instruction for require declarations (#6318)
2025-11-11 14:16:09 +00:00
handle_import_and_package.cpp
Formalize Cpp as a PackageNameId (#6306)
2025-11-05 17:21:41 +00:00
handle_index.cpp
Change IndexWith to use a standard binary operator setup (#6127)
2025-09-29 18:17:48 +00:00
handle_interface.cpp
Add require decls to Interface and NamedConstraint (#6321)
2025-11-11 16:36:15 +00:00
handle_let_and_var.cpp
Support ref tags on arguments to ref params (#6312)
2025-11-11 20:30:19 +00:00
handle_literal.cpp
Add support for char keyword per #5903. (#6078)
2025-09-16 20:45:01 +00:00
handle_loop_statement.cpp
Check and lowering support for for loops. (#5698)
2025-06-25 23:45:14 +00:00
handle_match.cpp
Rename check handlers to HandleParseNode overloads. (#4121)
2024-07-12 22:38:06 +00:00
handle_modifier.cpp
Allow extend final impl as for impl declarations (#5345)
2025-04-23 15:20:18 +00:00
handle_name.cpp
Formalize Cpp as a PackageNameId (#6306)
2025-11-05 17:21:41 +00:00
handle_named_constraint.cpp
Add require decls to Interface and NamedConstraint (#6321)
2025-11-11 16:36:15 +00:00
handle_namespace.cpp
Construct LocId from InstId directly (explicitly) instead of doing lookups when possible (#5355)
2025-04-28 19:06:24 +00:00
handle_noop.cpp
Abort checking when encountering an invalid parse node (#4700)
2024-12-18 00:19:12 +00:00
handle_operator.cpp
Always form a ConstType instruction for const. (#6341)
2025-11-09 18:17:09 +00:00
handle_paren_expr.cpp
Rename check handlers to HandleParseNode overloads. (#4121)
2024-07-12 22:38:06 +00:00
handle_pattern_list.cpp
Decouple associated constants from let (#5973)
2025-09-02 23:15:26 +00:00
handle_require.cpp
Type completion of facet types is separate from Identifying (#6385)
2025-11-21 22:28:08 +00:00
handle_return_statement.cpp
Rename check handlers to HandleParseNode overloads. (#4121)
2024-07-12 22:38:06 +00:00
handle_struct.cpp
Switch zip to zip_equal where possible (#6389)
2025-11-18 00:28:06 +00:00
handle_tuple_literal.cpp
Remove all remaining uses of TypeIds as instruction operands. (#5280)
2025-04-10 20:53:42 +00:00
handle_where.cpp
Add the .Self name for the type expression of a compile time binding (#5937)
2025-08-12 16:27:07 +00:00
handle.h
Track pending thunks on the deferred definition worklist. (#5609)
2025-06-10 22:09:31 +00:00
impl_lookup.cpp
Switch zip to zip_equal where possible (#6389)
2025-11-18 00:28:06 +00:00
impl_lookup.h
Switch EvalLookupSingleImplWitness from "concrete" to "final" terminology (#6246)
2025-10-20 17:25:26 +00:00
impl_validation.cpp
Avoid mismatched InterfaceId comparison between two files (#6241)
2025-10-20 18:44:05 +00:00
impl_validation.h
Add diagnostics for invalid impl declarations (#5420)
2025-05-22 18:58:47 +00:00
impl.cpp
Switch zip to zip_equal where possible (#6389)
2025-11-18 00:28:06 +00:00
impl.h
Factor out an impl declaration helper function (#5851)
2025-07-25 18:34:07 +00:00
import_ref.cpp
Proposing helpers to reduce some facet type boilerplate (#6412)
2025-11-20 23:07:04 +00:00
import_ref.h
When performing an impl lookup, only import impls for related interfaces. (#6040)
2025-09-10 21:40:27 +00:00
import.cpp
Refactor addition of imported locations and placeholders (#6354)
2025-11-13 18:34:13 +00:00
import.h
Refactor addition of imported locations and placeholders (#6354)
2025-11-13 18:34:13 +00:00
inst_block_stack.cpp
Refactor InstBlockStore's API, AddDefaultValue -> AddPlaceholder (#5166)
2025-03-21 23:09:37 +00:00
inst_block_stack.h
Add require decls to Interface and NamedConstraint (#6321)
2025-11-11 16:36:15 +00:00
inst.cpp
Refactor addition of imported locations and placeholders (#6354)
2025-11-13 18:34:13 +00:00
inst.h
Refactor addition of imported locations and placeholders (#6354)
2025-11-13 18:34:13 +00:00
interface.cpp
Type completion of facet types is separate from Identifying (#6385)
2025-11-21 22:28:08 +00:00
interface.h
Don't elide Self when dumping the interface/constraint (#6297)
2025-10-30 20:47:16 +00:00
keyword_modifier_set.cpp
Some more edits to EnumBase and EnumMaskBase (#6054)
2025-09-12 22:59:37 +00:00
keyword_modifier_set.h
Use inline constexpr where appropriate. (#6374)
2025-11-14 13:50:56 +00:00
lexical_lookup.h
Set an explicit size for lexical lookup's vector (#5786)
2025-07-09 22:42:27 +00:00
literal.cpp
C++ Interop: Add support for char (#5988)
2025-08-29 01:11:24 +00:00
literal.h
C++ Interop: Add support for char (#5988)
2025-08-29 01:11:24 +00:00
member_access.cpp
Clean up singleton TypeId use (#6300)
2025-10-30 22:50:59 +00:00
member_access.h
Implement support for mixed-access overload sets. (#6137)
2025-09-26 23:18:16 +00:00
merge.cpp
Remove support for addr (#6375)
2025-11-18 19:48:58 +00:00
merge.h
Initial support for empty named constraints (#6245)
2025-10-22 18:26:32 +00:00
modifiers.cpp
Construct LocId from InstId directly (explicitly) instead of doing lookups when possible (#5355)
2025-04-28 19:06:24 +00:00
modifiers.h
Refactor modifier formatting to remove string passing. (#4418)
2024-10-17 22:47:40 +00:00
name_component.cpp
Fix parse support for 'fn F[];' (#5135)
2025-03-18 00:31:17 +00:00
name_component.h
Id::Invalid -> Id::None (#4834)
2025-01-22 23:15:00 +00:00
name_lookup.cpp
Interop support for nullptr and nullptr_t. (#6353)
2025-11-12 23:23:48 +00:00
name_lookup.h
Interop support for nullptr and nullptr_t. (#6353)
2025-11-12 23:23:48 +00:00
name_ref.cpp
Fix lowering of thunks in generic impls (#5631)
2025-06-10 20:54:58 +00:00
name_ref.h
Fix lowering of thunks in generic impls (#5631)
2025-06-10 20:54:58 +00:00
node_id_traversal.cpp
Track pending thunks on the deferred definition worklist. (#5609)
2025-06-10 22:09:31 +00:00
node_id_traversal.h
Track pending thunks on the deferred definition worklist. (#5609)
2025-06-10 22:09:31 +00:00
node_stack.cpp
Avoid redundantly specifying Id::Kind. (#4911)
2025-02-07 22:35:18 +00:00
node_stack.h
Use inline constexpr where appropriate. (#6374)
2025-11-14 13:50:56 +00:00
operator.cpp
Support ref tags on arguments to ref params (#6312)
2025-11-11 20:30:19 +00:00
operator.h
Move diagnostic usings off Context (#5007)
2025-02-26 18:44:36 +00:00
param_and_arg_refs_stack.h
Consolidate post-check logic (#5003)
2025-02-25 02:07:43 +00:00
pattern_match.cpp
Remove support for addr (#6375)
2025-11-18 19:48:58 +00:00
pattern_match.h
Invalid comment cleanup (#4836)
2025-01-23 02:21:48 +00:00
pattern.cpp
Import C++ ref parameters as ref parameters (#6360)
2025-11-13 17:04:58 +00:00
pattern.h
Import C++ ref parameters as ref parameters (#6360)
2025-11-13 17:04:58 +00:00
pending_block.h
Don't treat dependent types as having a copy value representation. (#6055)
2025-09-15 23:59:00 +00:00
pointer_dereference.cpp
Generate thunks for functions in impls (#5390)
2025-05-01 22:17:55 +00:00
pointer_dereference.h
Generate thunks for functions in impls (#5390)
2025-05-01 22:17:55 +00:00
region_stack.h
Remove the SemIRLoc typedef (#5299)
2025-04-14 14:28:15 +00:00
return.cpp
Remove special case for returning value expressions by copy (#6052)
2025-09-12 00:13:33 +00:00
return.h
Generate thunks for functions in impls (#5390)
2025-05-01 22:17:55 +00:00
scope_index.h
Use inline constexpr where appropriate. (#6374)
2025-11-14 13:50:56 +00:00
scope_stack.cpp
Defer building thunks until the end of the enclosing definition. (#5403)
2025-05-07 22:20:39 +00:00
scope_stack.h
Drop fn destroy support (#6136)
2025-09-25 21:56:48 +00:00
subst.cpp
Switch zip to zip_equal where possible (#6389)
2025-11-18 00:28:06 +00:00
subst.h
Finish renaming BindName and related insts. (#6281)
2025-10-28 17:17:38 +00:00
thunk.cpp
Remove support for addr (#6375)
2025-11-18 19:48:58 +00:00
thunk.h
When making a direct call to a thunk, inline the call in SemIR. (#5642)
2025-06-11 21:34:01 +00:00
type_completion.cpp
Type completion of facet types is separate from Identifying (#6385)
2025-11-21 22:28:08 +00:00
type_completion.h
Make named constraint eval to a FacetType with itself in it (#6308)
2025-10-31 22:10:35 +00:00
type_structure.cpp
Return SymbolicBindingType separately in TypeIterator (#6193)
2025-10-10 12:37:37 +00:00
type_structure.h
Update Documentation to use new expression terminology (#5890)
2025-09-30 20:15:55 +00:00
type.cpp
Complete all pointer types. (#6340)
2025-11-08 00:45:12 +00:00
type.h
Complete all pointer types. (#6340)
2025-11-08 00:45:12 +00:00