feat(ast): Add ident support

Author: GeekMasher

ql/lib/codeql/bicep/ast/Idents.qll

@@ -0,0 +1,19 @@
+private import AstNodes
+private import Expr
+private import internal.Idents
+private import internal.Identifier
+private import internal.Parameter
+
+/**
+ *  A Idents AST node.
+ */
+abstract class Idents extends Expr instanceof IdentsImpl {
+    abstract string getName();
+}
+
+/**
+ *  A Identifier unknown AST node.
+ */
+class Identifier extends Idents instanceof IdentifierImpl {
+    override string getName() { result = IdentifierImpl.super.getName() }
+}

ql/lib/codeql/bicep/ast/internal/AstNodes.qll

@@ -77,6 +77,11 @@ newtype TAstNode =
 class TLiterals =
   TInterpolation or TNull or TNullableReturnType or TNullableType or TString or TStringContent;
 
+/**
+ *  A identifier in a SQL program
+ */
+class TIdents = TIdentifier;
+
 /**
  * A statement in a Bicep program
  */
@@ -88,10 +93,10 @@ class TStmts =
  * A expersion value in a Bicep program
  */
 class TExpr =
-  TLiterals or TConditionalExpr or TAssignmentExpression or TBinaryExpression or TCallExpression or
-      TExpression or TLambdaExpression or TMemberExpression or TParenthesizedExpression or
-      TPrimaryExpression or TResourceExpression or TSubscriptExpression or TTernaryExpression or
-      TUnaryExpression;
+  TLiterals or TConditionalExpr or TStmts or TIdents or TAssignmentExpression or
+      TBinaryExpression or TCallExpression or TExpression or TLambdaExpression or
+      TMemberExpression or TParenthesizedExpression or TPrimaryExpression or TResourceExpression or
+      TSubscriptExpression or TTernaryExpression or TUnaryExpression;
 
 /**
  * A expersion value in a Bicep program

ql/lib/codeql/bicep/ast/internal/Identifier.qll

@@ -6,11 +6,12 @@
 private import AstNodes
 private import TreeSitter
 private import codeql.bicep.ast.AstNodes
+private import Idents
 
 /**
  *  A Identifier AST Node.
  */
-class IdentifierImpl extends TIdentifier, AstNode {
+class IdentifierImpl extends TIdentifier, IdentsImpl {
   private BICEP::Identifier ast;
 
   override string getAPrimaryQlClass() { result = "Identifier" }
@@ -19,6 +20,5 @@ class IdentifierImpl extends TIdentifier, AstNode {
 
   override string toString() { result = ast.toString() }
 
-
-
+  override string getName() { result = ast.getValue() }
 }

ql/lib/codeql/bicep/ast/internal/Idents.qll

@@ -0,0 +1,16 @@
+private import AstNodes
+private import TreeSitter
+private import codeql.bicep.ast.AstNodes
+
+
+/**
+ * Literal statements.
+ */
+class IdentsImpl extends AstNode, TIdents {
+  override string getAPrimaryQlClass() { result = "Idents" }
+
+  /** 
+   * Get the value of the literal 
+   */
+  abstract string getName();
+}