Replace ::std with std

cyyever · cyyever · commit d52456911e14 · 2025-07-22T23:38:55.000+08:00
Signed-off-by: cyy &lt;cyyever@outlook.com&gt;
diff --git a/tools/autograd/load_derivatives.py b/tools/autograd/load_derivatives.py
@@ -969,7 +969,7 @@ def repl(m: re.Match[str]) -> str:
         if nctype.type == OptionalCType(BaseCType(stringT)):
             formula = re.sub(
                 rf"\b{name}\b",
-                f"{name}.has_value() ? std::optional<::std::string_view>({name}.value()) : std::nullopt",
+                f"{name}.has_value() ? std::optional<std::string_view>({name}.value()) : std::nullopt",
                 formula,
             )
 
diff --git a/torchgen/api/cpp.py b/torchgen/api/cpp.py
@@ -9,6 +9,7 @@
     ArrayCType,
     ArrayRefCType,
     BaseCType,
+    BaseCppType,
     BaseTypeToCppMapping,
     Binding,
     boolT,
@@ -110,7 +111,10 @@ def valuetype_type(
             else:
                 return NamedCType(binds, BaseCType(longT))
         # All other BaseType currently map directly to BaseCppTypes.
-        return NamedCType(binds, BaseCType(BaseTypeToCppMapping[t.name]))
+        cpp_type = BaseTypeToCppMapping[t.name]
+        if str(cpp_type) == "std::string_view":
+            cpp_type = BaseCppType(ns="::std", name=cpp_type.name)
+        return NamedCType(binds, BaseCType(cpp_type))
     elif isinstance(t, OptionalType):
         elem = valuetype_type(t.elem, binds=binds, mutable=mutable, symint=symint)
         if elem is None:
diff --git a/torchgen/api/types/types.py b/torchgen/api/types/types.py
@@ -52,7 +52,7 @@
 float8_e4m3fnT = BaseCppType("at", "Float8_e4m3fn")
 float8_e4m3fnuzT = BaseCppType("at", "Float8_e4m3fnuz")
 float8_e8m0fnuT = BaseCppType("at", "Float8_e8m0fnu")
-stringT = BaseCppType("::std", "string_view")
+stringT = BaseCppType("std", "string_view")
 generatorT = BaseCppType("at", "Generator")
 scalarTypeT = BaseCppType("at", "ScalarType")
 tensorT = BaseCppType("at", "Tensor")

Original file line number	Diff line number	Diff line change
`@@ -969,7 +969,7 @@ def repl(m: re.Match[str]) -> str:`
`969`	`969`	`if nctype.type == OptionalCType(BaseCType(stringT)):`
`970`	`970`	`formula = re.sub(`
`971`	`971`	`rf"\b{name}\b",`
`972`		`- f"{name}.has_value() ? std::optional<::std::string_view>({name}.value()) : std::nullopt",`
	`972`	`+ f"{name}.has_value() ? std::optional<std::string_view>({name}.value()) : std::nullopt",`
`973`	`973`	`formula,`
`974`	`974`	`)`
`975`	`975`