PS: Add an example with a missing toString.

Author: MathiasVP

powershell/ql/test/library-tests/ast/Expressions/MemberExpression.ps1

@@ -0,0 +1,2 @@
+param($x)
+[DateTime]::$x

powershell/ql/test/library-tests/ast/Expressions/expressions.expected

@@ -5,6 +5,7 @@ cmdExpr
 | BinaryExpression.ps1:4:1:4:7 | [Stmt] result | BinaryExpression.ps1:4:1:4:7 | result |
 | ExpandableString.ps1:1:1:1:39 | [Stmt] Date: $([DateTime]::Now)\nName: $name | ExpandableString.ps1:1:1:1:39 | Date: $([DateTime]::Now)\nName: $name |
 | ExpandableString.ps1:1:23:1:37 | [Stmt] Now | ExpandableString.ps1:1:23:1:37 | Now |
+| MemberExpression.ps1:2:1:2:14 | (no string representation) | MemberExpression.ps1:2:1:2:14 | (no string representation) |
 | SubExpression.ps1:1:1:1:23 | [Stmt] Call to AddDays | SubExpression.ps1:1:1:1:23 | Call to AddDays |
 | SubExpression.ps1:1:3:1:10 | [Stmt] Call to Get-Date | SubExpression.ps1:1:3:1:10 | Call to Get-Date |
 | SubExpression.ps1:2:1:2:21 | [Stmt] Call to AddDays | SubExpression.ps1:2:1:2:21 | Call to AddDays |
@@ -13,3 +14,6 @@ invokeMemoryExpression
 | SubExpression.ps1:1:1:1:23 | Call to AddDays | SubExpression.ps1:1:1:1:11 | $(...) | 0 | SubExpression.ps1:1:21:1:22 | 10 |
 expandableString
 | ExpandableString.ps1:1:1:1:39 | Date: $([DateTime]::Now)\nName: $name | 1 | ExpandableString.ps1:1:21:1:38 | $(...) |
+memberExpr
+| ExpandableString.ps1:1:23:1:37 | Now | ExpandableString.ps1:1:23:1:32 | DateTime |
+| MemberExpression.ps1:2:1:2:14 | (no string representation) | MemberExpression.ps1:2:1:2:10 | DateTime |

powershell/ql/test/library-tests/ast/Expressions/expressions.ql

@@ -1,19 +1,19 @@
 import powershell
 
 query predicate binaryExpr(BinaryExpr e, Expr e1, Expr e2) {
-    e1 = e.getLeft() and
-    e2 = e.getRight()
+  e1 = e.getLeft() and
+  e2 = e.getRight()
 }
 
-query predicate cmdExpr(ExprStmt exprStmt, Expr e) {
-    e = exprStmt.getExpr()
-}
+query predicate cmdExpr(ExprStmt exprStmt, Expr e) { e = exprStmt.getExpr() }
 
 query predicate invokeMemoryExpression(InvokeMemberExpr invoke, Expr e, int i, Expr arg) {
-    e = invoke.getQualifier() and
-    arg = invoke.getArgument(i)
+  e = invoke.getQualifier() and
+  arg = invoke.getArgument(i)
 }
 
 query predicate expandableString(ExpandableStringExpr expandable, int i, Expr e) {
-    e = expandable.getExpr(i)
+  e = expandable.getExpr(i)
 }
+
+query predicate memberExpr(MemberExpr expr, Expr e) { e = expr.getQualifier() }