Merge pull request #10076 from erik-krogh/ql-for-ql-fixes

various QL-for-QL fixes

Author: erik-krogh

cpp/ql/lib/experimental/semmle/code/cpp/semantic/SemanticExprSpecific.qll

@@ -292,22 +292,20 @@ module SemanticExprConfig {
 
   class Guard = IRGuards::IRGuardCondition;
 
-  predicate guard(Guard guard, BasicBlock block) {
-    block = guard.(IRGuards::IRGuardCondition).getBlock()
-  }
+  predicate guard(Guard guard, BasicBlock block) { block = guard.getBlock() }
 
   Expr getGuardAsExpr(Guard guard) { result = guard }
 
   predicate equalityGuard(Guard guard, Expr e1, Expr e2, boolean polarity) {
-    guard.(IRGuards::IRGuardCondition).comparesEq(e1.getAUse(), e2.getAUse(), 0, true, polarity)
+    guard.comparesEq(e1.getAUse(), e2.getAUse(), 0, true, polarity)
   }
 
   predicate guardDirectlyControlsBlock(Guard guard, BasicBlock controlled, boolean branch) {
-    guard.(IRGuards::IRGuardCondition).controls(controlled, branch)
+    guard.controls(controlled, branch)
   }
 
   predicate guardHasBranchEdge(Guard guard, BasicBlock bb1, BasicBlock bb2, boolean branch) {
-    guard.(IRGuards::IRGuardCondition).controlsEdge(bb1, bb2, branch)
+    guard.controlsEdge(bb1, bb2, branch)
   }
 
   Guard comparisonGuard(Expr e) { result = e }

cpp/ql/src/Likely Bugs/Memory Management/UsingExpiredStackAddress.ql

@@ -268,7 +268,11 @@ class PathElement extends TPathElement {
   predicate isSink(IRBlock block) { exists(this.asSink(block)) }
 
   string toString() {
-    result = [asStore().toString(), asCall(_).toString(), asMid().toString(), asSink(_).toString()]
+    result =
+      [
+        this.asStore().toString(), this.asCall(_).toString(), this.asMid().toString(),
+        this.asSink(_).toString()
+      ]
   }
 
   predicate hasLocationInfo(

cpp/ql/src/experimental/Security/CWE/CWE-125/DangerousWorksWithMultibyteOrWideCharacters.ql

@@ -67,7 +67,7 @@ predicate findUseCharacterConversion(Expr exp, string msg) {
   exists(FunctionCall fc |
     fc = exp and
     (
-      exists(Loop lptmp | lptmp = fc.getEnclosingStmt().getParentStmt*()) and
+      fc.getEnclosingStmt().getParentStmt*() instanceof Loop and
       fc.getTarget().hasName(["mbtowc", "mbrtowc", "_mbtowc_l"]) and
       not fc.getArgument(0).isConstant() and
       not fc.getArgument(1).isConstant() and

cpp/ql/src/experimental/Security/CWE/CWE-190/DangerousUseOfTransformationAfterOperation.ql

@@ -44,11 +44,8 @@ predicate conversionDoneLate(MulExpr mexp) {
       mexp.getEnclosingElement().(ComparisonOperation).hasOperands(mexp, e0) and
       e0.getType().getSize() = mexp.getConversion().getConversion().getType().getSize()
       or
-      e0.(FunctionCall)
-          .getTarget()
-          .getParameter(argumentPosition(e0.(FunctionCall), mexp, _))
-          .getType()
-          .getSize() = mexp.getConversion().getConversion().getType().getSize()
+      e0.(FunctionCall).getTarget().getParameter(argumentPosition(e0, mexp, _)).getType().getSize() =
+        mexp.getConversion().getConversion().getType().getSize()
     )
   )
 }
@@ -75,7 +72,7 @@ predicate signSmallerWithEqualSizes(MulExpr mexp) {
       ae.getRValue().getUnderlyingType().(IntegralType).isUnsigned() and
       ae.getLValue().getUnderlyingType().(IntegralType).isSigned() and
       (
-        not exists(DivExpr de | mexp.getParent*() = de)
+        not mexp.getParent*() instanceof DivExpr
         or
         exists(DivExpr de, Expr ec |
           e2.isConstant() and

go/ql/lib/semmle/go/AST.qll

@@ -28,12 +28,12 @@ class AstNode extends @node, Locatable {
   /**
    * Gets a child node of this node.
    */
-  AstNode getAChild() { result = getChild(_) }
+  AstNode getAChild() { result = this.getChild(_) }
 
   /**
    * Gets the number of child nodes of this node.
    */
-  int getNumChild() { result = count(getAChild()) }
+  int getNumChild() { result = count(this.getAChild()) }
 
   /**
    * Gets a child with the given index and of the given kind, if one exists.
@@ -63,7 +63,7 @@ class AstNode extends @node, Locatable {
   AstNode getUniquelyNumberedChild(int index) {
     result =
       rank[index + 1](AstNode child, string kind, int i |
-        child = getChildOfKind(kind, i)
+        child = this.getChildOfKind(kind, i)
       |
         child order by kind, i
       )
@@ -74,17 +74,17 @@ class AstNode extends @node, Locatable {
 
   /** Gets the parent node of this AST node, but without crossing function boundaries. */
   private AstNode parentInSameFunction() {
-    result = getParent() and
+    result = this.getParent() and
     not this instanceof FuncDef
   }
 
   /** Gets the innermost function definition to which this AST node belongs, if any. */
-  FuncDef getEnclosingFunction() { result = getParent().parentInSameFunction*() }
+  FuncDef getEnclosingFunction() { result = this.getParent().parentInSameFunction*() }
 
   /**
    * Gets a comma-separated list of the names of the primary CodeQL classes to which this element belongs.
    */
-  final string getPrimaryQlClasses() { result = concat(getAPrimaryQlClass(), ",") }
+  final string getPrimaryQlClasses() { result = concat(this.getAPrimaryQlClass(), ",") }
 
   /**
    * Gets the name of a primary CodeQL class to which this node belongs.
@@ -116,12 +116,12 @@ class ExprParent extends @exprparent, AstNode {
   /**
    * Gets an expression that is a child node of this node in the AST.
    */
-  Expr getAChildExpr() { result = getChildExpr(_) }
+  Expr getAChildExpr() { result = this.getChildExpr(_) }
 
   /**
    * Gets the number of child expressions of this node.
    */
-  int getNumChildExpr() { result = count(getAChildExpr()) }
+  int getNumChildExpr() { result = count(this.getAChildExpr()) }
 }
 
 /**
@@ -139,12 +139,12 @@ class GoModExprParent extends @modexprparent, AstNode {
   /**
    * Gets an expression that is a child node of this node in the AST.
    */
-  GoModExpr getAChildGoModExpr() { result = getChildGoModExpr(_) }
+  GoModExpr getAChildGoModExpr() { result = this.getChildGoModExpr(_) }
 
   /**
    * Gets the number of child expressions of this node.
    */
-  int getNumChildGoModExpr() { result = count(getAChildGoModExpr()) }
+  int getNumChildGoModExpr() { result = count(this.getAChildGoModExpr()) }
 }
 
 /**
@@ -162,12 +162,12 @@ class StmtParent extends @stmtparent, AstNode {
   /**
    * Gets a statement that is a child node of this node in the AST.
    */
-  Stmt getAChildStmt() { result = getChildStmt(_) }
+  Stmt getAChildStmt() { result = this.getChildStmt(_) }
 
   /**
    * Gets the number of child statements of this node.
    */
-  int getNumChildStmt() { result = count(getAChildStmt()) }
+  int getNumChildStmt() { result = count(this.getAChildStmt()) }
 }
 
 /**
@@ -185,12 +185,12 @@ class DeclParent extends @declparent, AstNode {
   /**
    * Gets a child declaration of this node in the AST.
    */
-  Decl getADecl() { result = getDecl(_) }
+  Decl getADecl() { result = this.getDecl(_) }
 
   /**
    * Gets the number of child declarations of this node.
    */
-  int getNumDecl() { result = count(getADecl()) }
+  int getNumDecl() { result = count(this.getADecl()) }
 }
 
 /**
@@ -208,12 +208,12 @@ class FieldParent extends @fieldparent, AstNode {
   /**
    * Gets a child field of this node in the AST.
    */
-  FieldBase getAField() { result = getField(_) }
+  FieldBase getAField() { result = this.getField(_) }
 
   /**
    * Gets the number of child fields of this node.
    */
-  int getNumFields() { result = count(getAField()) }
+  int getNumFields() { result = count(this.getAField()) }
 }
 
 /**

go/ql/lib/semmle/go/Types.qll

@@ -787,7 +787,7 @@ class InterfaceType extends @interfacetype, CompositeType {
    * Note that the indexes are not contiguous.
    */
   TypeSetLiteralType getDirectlyEmbeddedTypeSetLiteral(int index) {
-    hasDirectlyEmbeddedType(index, result)
+    this.hasDirectlyEmbeddedType(index, result)
   }
 
   /**
@@ -798,7 +798,7 @@ class InterfaceType extends @interfacetype, CompositeType {
   TypeSetLiteralType getAnEmbeddedTypeSetLiteral() {
     result = this.getDirectlyEmbeddedTypeSetLiteral(_) or
     result =
-      getADirectlyEmbeddedInterface()
+      this.getADirectlyEmbeddedInterface()
           .getUnderlyingType()
           .(InterfaceType)
           .getAnEmbeddedTypeSetLiteral()

go/ql/lib/semmle/go/frameworks/ElazarlGoproxy.qll

@@ -3,7 +3,6 @@
  */
 
 import go
-private import semmle.go.StringOps
 
 /**
  * Provides classes for working with concepts relating to the [github.com/elazarl/goproxy](https://pkg.go.dev/github.com/elazarl/goproxy) package.

go/ql/lib/semmle/go/frameworks/Glog.qll

@@ -4,7 +4,6 @@
  */
 
 import go
-private import semmle.go.StringOps
 
 /**
  * Provides models of commonly used functions in the `github.com/golang/glog` packages and its

go/ql/lib/semmle/go/frameworks/Logrus.qll

@@ -1,7 +1,6 @@
 /** Provides models of commonly used functions in the `github.com/sirupsen/logrus` package. */
 
 import go
-private import semmle.go.StringOps
 
 /** Provides models of commonly used functions in the `github.com/sirupsen/logrus` package. */
 module Logrus {

go/ql/lib/semmle/go/frameworks/Spew.qll

@@ -3,7 +3,6 @@
  */
 
 import go
-private import semmle.go.StringOps
 
 /**
  * Provides models of commonly used functions in the `github.com/davecgh/go-spew/spew` package.