Merge pull request #17688 from github/tausbn/python-3.13-default-type-parser-support

Python: Add support for type parameter defaults

python/ql/lib/change-notes/2024-10-09-type-parameter-defaults.md

@@ -0,0 +1,5 @@
+---
+category: minorAnalysis
+---
+
+- Added support for type parameter defaults, as specified in [PEP-696](https://peps.python.org/pep-0696/).

python/ql/lib/semmle/python/AstGenerated.qll

@@ -1126,6 +1126,9 @@ class ParamSpec_ extends @py_ParamSpec, TypeParameter {
   /** Gets the name of this parameter spec. */
   Expr getName() { py_exprs(result, _, this, 1) }
 
+  /** Gets the default of this parameter spec. */
+  Expr getDefault() { py_exprs(result, _, this, 2) }
+
   override string toString() { result = "ParamSpec" }
 }
 
@@ -1466,6 +1469,9 @@ class TypeVar_ extends @py_TypeVar, TypeParameter {
   /** Gets the bound of this type variable. */
   Expr getBound() { py_exprs(result, _, this, 2) }
 
+  /** Gets the default of this type variable. */
+  Expr getDefault() { py_exprs(result, _, this, 3) }
+
   override string toString() { result = "TypeVar" }
 }
 
@@ -1474,6 +1480,9 @@ class TypeVarTuple_ extends @py_TypeVarTuple, TypeParameter {
   /** Gets the name of this type variable tuple. */
   Expr getName() { py_exprs(result, _, this, 1) }
 
+  /** Gets the default of this type variable tuple. */
+  Expr getDefault() { py_exprs(result, _, this, 2) }
+
   override string toString() { result = "TypeVarTuple" }
 }
 

python/ql/lib/semmlecode.python.dbscheme

@@ -617,6 +617,7 @@ py_extracted_version(int module : @py_Module ref,
 
 /* <Field> ParamSpec.location = 0, location */
 /* <Field> ParamSpec.name = 1, expr */
+/* <Field> ParamSpec.default = 2, expr */
 
 /* <Field> Pass.location = 0, location */
 
@@ -715,9 +716,11 @@ py_extracted_version(int module : @py_Module ref,
 /* <Field> TypeVar.location = 0, location */
 /* <Field> TypeVar.name = 1, expr */
 /* <Field> TypeVar.bound = 2, expr */
+/* <Field> TypeVar.default = 3, expr */
 
 /* <Field> TypeVarTuple.location = 0, location */
 /* <Field> TypeVarTuple.name = 1, expr */
+/* <Field> TypeVarTuple.default = 2, expr */
 
 /* <Field> UnaryExpr.location = 0, location */
 /* <Field> UnaryExpr.parenthesised = 1, bool */

python/ql/lib/upgrades/728c6d65e61d808ae276013ebc15abc3a97aaef1/upgrade.properties

@@ -0,0 +1,2 @@
+description: Add support for type parameter defaults.
+compatibility: backwards