QL: Add fields for signatureExpr

ql/extractor/Cargo.toml

@@ -10,7 +10,7 @@ edition = "2018"
 flate2 = "1.0"
 node-types = { path = "../node-types" }
 tree-sitter = "0.19"
-tree-sitter-ql = { git = "https://github.com/tausbn/tree-sitter-ql.git", rev = "a8e519e676ff6e7aa9c1d0a8a329edefcaac69ae" }
+tree-sitter-ql = { git = "https://github.com/tausbn/tree-sitter-ql.git", rev = "91cdab850c2b6d97d1211da0423adb53c67fef3e" }
 clap = "2.33"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3.3", features = ["env-filter"] }

ql/generator/Cargo.toml

@@ -11,4 +11,4 @@ clap = "2.33"
 node-types = { path = "../node-types" }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3.3", features = ["env-filter"] }
-tree-sitter-ql = { git = "https://github.com/tausbn/tree-sitter-ql.git", rev = "a8e519e676ff6e7aa9c1d0a8a329edefcaac69ae" }
+tree-sitter-ql = { git = "https://github.com/tausbn/tree-sitter-ql.git", rev = "91cdab850c2b6d97d1211da0423adb53c67fef3e" }

ql/ql/src/codeql_ql/ast/internal/TreeSitter.qll

@@ -1320,15 +1320,20 @@ module QL {
     /** Gets the name of the primary QL class for this element. */
     final override string getAPrimaryQlClass() { result = "SignatureExpr" }
 
+    /** Gets the node corresponding to the field `arity`. */
+    final Integer getArity() { ql_signature_expr_arity(this, result) }
+
     /** Gets the node corresponding to the field `name`. */
     final SimpleId getName() { ql_signature_expr_def(this, result) }
 
-    /** Gets the `i`th child of this node. */
-    final AstNode getChild(int i) { ql_signature_expr_child(this, i, result) }
+    /** Gets the node corresponding to the field `qualifier`. */
+    final ModuleExpr getQualifier() { ql_signature_expr_qualifier(this, result) }
 
     /** Gets a field or child node of this node. */
     final override AstNode getAFieldOrChild() {
-      ql_signature_expr_def(this, result) or ql_signature_expr_child(this, _, result)
+      ql_signature_expr_arity(this, result) or
+      ql_signature_expr_def(this, result) or
+      ql_signature_expr_qualifier(this, result)
     }
   }
 

ql/ql/src/ql.dbscheme

@@ -890,13 +890,14 @@ ql_set_literal_def(
   unique int id: @ql_set_literal
 );
 
-@ql_signatureExpr_child_type = @ql_module_expr | @ql_token_integer
+ql_signature_expr_arity(
+  unique int ql_signature_expr: @ql_signature_expr ref,
+  unique int arity: @ql_token_integer ref
+);
 
-#keyset[ql_signature_expr, index]
-ql_signature_expr_child(
-  int ql_signature_expr: @ql_signature_expr ref,
-  int index: int ref,
-  unique int child: @ql_signatureExpr_child_type ref
+ql_signature_expr_qualifier(
+  unique int ql_signature_expr: @ql_signature_expr ref,
+  unique int qualifier: @ql_module_expr ref
 );
 
 ql_signature_expr_def(