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C++: Fix C++20 concept related class extensions #20026

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Merged
merged 1 commit into from
Jul 13, 2025
+5 −6
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C++: Fix C++20 concept related class extensions #20026

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11 changes: 5 additions & 6 deletions cpp/ql/lib/semmle/code/cpp/Concept.qll
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,9 @@ class RequiresExpr extends Expr, @requires_expr {
/**
* A C++ requirement in a requires expression.
*/
class RequirementExpr extends Expr { }
class RequirementExpr extends Expr {
RequirementExpr() { this.getParent() instanceof RequiresExpr }
}

/**
* A C++ simple requirement in a requires expression.
Expand All @@ -70,7 +72,6 @@ class RequirementExpr extends Expr { }
*/
class SimpleRequirementExpr extends RequirementExpr {
SimpleRequirementExpr() {
this.getParent() instanceof RequiresExpr and
not this instanceof TypeRequirementExpr and
not this instanceof CompoundRequirementExpr and
not this instanceof NestedRequirementExpr
Expand All @@ -89,8 +90,6 @@ class SimpleRequirementExpr extends RequirementExpr {
* with `T` a template parameter, then `typename T::a_field;` is a type requirement.
*/
class TypeRequirementExpr extends RequirementExpr, TypeName {
TypeRequirementExpr() { this.getParent() instanceof RequiresExpr }

override string getAPrimaryQlClass() { result = "TypeRequirementExpr" }
}

Expand Down Expand Up @@ -140,7 +139,7 @@ class CompoundRequirementExpr extends RequirementExpr, @compound_requirement {
* with `T` a template parameter, then `requires std::is_same<T, int>::value;` is
* a nested requirement.
*/
class NestedRequirementExpr extends Expr, @nested_requirement {
class NestedRequirementExpr extends RequirementExpr, @nested_requirement {
override string toString() { result = "requires ..." }

override string getAPrimaryQlClass() { result = "NestedRequirementExpr" }
Expand All @@ -163,7 +162,7 @@ class NestedRequirementExpr extends Expr, @nested_requirement {
* then `C<int, 1>` is a concept id expression that refers to
* the concept `C`.
*/
class ConceptIdExpr extends RequirementExpr, @concept_id {
class ConceptIdExpr extends Expr, @concept_id {
override string toString() {
result = this.getConcept().getName() + "<...>"
or
Expand Down
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