JS: Emit variable bindings for 'this' expressions

Author: Launch Ppt Format

javascript/extractor/src/com/semmle/js/extractor/ASTExtractor.java

@@ -1896,6 +1896,15 @@ public Label visit(JSXThisExpr nd, Context c) {
  return visit((ThisExpression) nd, c);
  }
 
+ @Override
+ public Label visit(ThisExpression nd, Context c) {
+ Label key = super.visit(nd, c);
+ if (c.idcontext == IdContext.VAR_BIND || c.idcontext == IdContext.VAR_IN_TYPE_BIND) {
+ addVariableBinding("bind", key, "this");
+ }
+ return key;
+ }
+
  @Override
  public Label visit(JSXMemberExpression nd, Context c) {
  Label key = super.visit(nd, c);

javascript/ql/lib/semmlecode.javascript.dbscheme

@@ -453,7 +453,7 @@ is_arguments_object (int id: @variable ref);
 
 @lexical_name = @variable | @local_type_name | @local_namespace_name;
 
-@bind_id = @varaccess | @local_var_type_access;
+@bind_id = @varaccess | @local_var_type_access | @this_expr;
 bind (unique int id: @bind_id ref,
  int decl: @variable ref);