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C++: Support C++20 range-based for initializers

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This commit is contained in:
Jeroen Ketema
2024-02-16 15:03:52 +01:00
parent da3ff4813f
commit dd39fa0bde
31 changed files with 9498 additions and 195 deletions
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31
cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedStmt.qll
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@@ -960,25 +960,38 @@ class TranslatedRangeBasedForStmt extends TranslatedStmt, ConditionContext {
override RangeBasedForStmt stmt;
override TranslatedElement getChild(int id) {
id = 0 and result = this.getRangeVariableDeclStmt()
id = 0 and result = this.getInitialization()
or
id = 1 and result = this.getRangeVariableDeclStmt()
or
// Note: `__begin` and `__end` are declared by the same `DeclStmt`
id = 1 and result = this.getBeginEndVariableDeclStmt()
id = 2 and result = this.getBeginEndVariableDeclStmt()
or
id = 2 and result = this.getCondition()
id = 3 and result = this.getCondition()
or
id = 3 and result = this.getUpdate()
id = 4 and result = this.getUpdate()
or
id = 4 and result = this.getVariableDeclStmt()
id = 5 and result = this.getVariableDeclStmt()
or
id = 5 and result = this.getBody()
id = 6 and result = this.getBody()
}
private predicate hasInitialization() { exists(stmt.getInitialization()) }
private TranslatedStmt getInitialization() {
result = getTranslatedStmt(stmt.getInitialization())
}
override Instruction getFirstInstruction(EdgeKind kind) {
result = this.getRangeVariableDeclStmt().getFirstInstruction(kind)
if this.hasInitialization()
then result = this.getInitialization().getFirstInstruction(kind)
else result = this.getFirstRangeVariableDeclStmtInstruction(kind)
}
override Instruction getChildSuccessor(TranslatedElement child, EdgeKind kind) {
child = this.getInitialization() and
result = this.getFirstRangeVariableDeclStmtInstruction(kind)
or
child = this.getRangeVariableDeclStmt() and
result = this.getBeginEndVariableDeclStmt().getFirstInstruction(kind)
or
@@ -1018,6 +1031,10 @@ class TranslatedRangeBasedForStmt extends TranslatedStmt, ConditionContext {
)
}
private Instruction getFirstRangeVariableDeclStmtInstruction(EdgeKind kind) {
result = this.getRangeVariableDeclStmt().getFirstInstruction(kind)
}
private TranslatedDeclStmt getBeginEndVariableDeclStmt() {
exists(IRVariableDeclarationEntry entry |
entry.getStmt() = stmt.getBeginEndDeclaration() and