Python: CG trace: Autogenerate BytecodeExpr.qll

Some code I had lying around, just hadn't comitted.

Not that useful since most of these have been disabled in 55404ae98 for now.

python/tools/recorded-call-graph-metrics/ql/BytecodeExpr.qll

@@ -2,6 +2,12 @@ import python
 
 abstract class XMLBytecodeExpr extends XMLElement { }
 
+class XMLBytecodeConst extends XMLBytecodeExpr {
+  XMLBytecodeConst() { this.hasName("BytecodeConst") }
+
+  string get_value_data_raw() { result = this.getAChild("value").getTextValue() }
+}
+
 class XMLBytecodeVariableName extends XMLBytecodeExpr {
   XMLBytecodeVariableName() { this.hasName("BytecodeVariableName") }
 
@@ -16,6 +22,30 @@ class XMLBytecodeAttribute extends XMLBytecodeExpr {
   XMLBytecodeExpr get_object_data() { result.getParent() = this.getAChild("object") }
 }
 
+class XMLBytecodeSubscript extends XMLBytecodeExpr {
+  XMLBytecodeSubscript() { this.hasName("BytecodeSubscript") }
+
+  XMLBytecodeExpr get_key_data() { result.getParent() = this.getAChild("key") }
+
+  XMLBytecodeExpr get_object_data() { result.getParent() = this.getAChild("object") }
+}
+
+class XMLBytecodeTuple extends XMLBytecodeExpr {
+  XMLBytecodeTuple() { this.hasName("BytecodeTuple") }
+
+  XMLBytecodeExpr get_elements_data(int index) {
+    result = this.getAChild("elements").getChild(index)
+  }
+}
+
+class XMLBytecodeList extends XMLBytecodeExpr {
+  XMLBytecodeList() { this.hasName("BytecodeList") }
+
+  XMLBytecodeExpr get_elements_data(int index) {
+    result = this.getAChild("elements").getChild(index)
+  }
+}
+
 class XMLBytecodeCall extends XMLBytecodeExpr {
   XMLBytecodeCall() { this.hasName("BytecodeCall") }
 
@@ -24,4 +54,20 @@ class XMLBytecodeCall extends XMLBytecodeExpr {
 
 class XMLBytecodeUnknown extends XMLBytecodeExpr {
   XMLBytecodeUnknown() { this.hasName("BytecodeUnknown") }
+
+  string get_opname_data() { result = this.getAChild("opname").getTextValue() }
+}
+
+class XMLBytecodeMakeFunction extends XMLBytecodeExpr {
+  XMLBytecodeMakeFunction() { this.hasName("BytecodeMakeFunction") }
+
+  XMLBytecodeExpr get_qualified_name_data() {
+    result.getParent() = this.getAChild("qualified_name")
+  }
+}
+
+class XMLSomethingInvolvingScaryBytecodeJump extends XMLBytecodeExpr {
+  XMLSomethingInvolvingScaryBytecodeJump() { this.hasName("SomethingInvolvingScaryBytecodeJump") }
+
+  string get_opname_data() { result = this.getAChild("opname").getTextValue() }
 }

python/tools/recorded-call-graph-metrics/src/cg_trace/generate_bytecode_expr_qll.py

@@ -0,0 +1,46 @@
+import dataclasses
+from typing import Any, List
+
+from cg_trace.bytecode_reconstructor import BytecodeExpr
+
+PREAMBLE = """\
+import python
+
+abstract class XMLBytecodeExpr extends XMLElement { }
+"""
+
+CLASS_PREAMBLE = """\
+class XML{class_name} extends XMLBytecodeExpr {{
+  XML{class_name}() {{ this.hasName("{class_name}") }}
+"""
+
+CLASS_AFTER = """\
+}
+"""
+
+ATTR_TEMPLATES = {
+    str: 'string get_{name}_data() {{ result = this.getAChild("{name}").getTextValue() }}',
+    int: 'int get_{name}_data() {{ result = this.getAChild("{name}").getTextValue().toInt() }}',
+    BytecodeExpr: 'XMLBytecodeExpr get_{name}_data() {{ result.getParent() = this.getAChild("{name}") }}',
+    List[
+        BytecodeExpr
+    ]: 'XMLBytecodeExpr get_{name}_data(int index) {{ result = this.getAChild("{name}").getChild(index) }}',
+    Any: 'string get_{name}_data_raw() {{ result = this.getAChild("{name}").getTextValue() }}',
+}
+
+if __name__ == "__main__":
+
+    print(PREAMBLE)
+
+    for sc in BytecodeExpr.__subclasses__():
+        print(CLASS_PREAMBLE.format(class_name=sc.__name__))
+
+        for f in dataclasses.fields(sc):
+            field_template = ATTR_TEMPLATES.get(f.type)
+            if field_template:
+                generated = field_template.format(name=f.name)
+                print(f"  {generated}")
+            else:
+                raise Exception("no template for", f.type)
+
+        print(CLASS_AFTER)