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Rust: Cache inferCertainType #20845

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Merged
hvitved merged 1 commit into from
Nov 18, 2025
Merged

Rust: Cache inferCertainType #20845

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8 changes: 4 additions & 4 deletions rust/ql/lib/codeql/rust/internal/TypeInference.qll
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ private import TypeMention
private import typeinference.FunctionType
private import typeinference.FunctionOverloading as FunctionOverloading
private import typeinference.BlanketImplementation as BlanketImplementation
private import codeql.rust.internal.CachedStages
private import codeql.typeinference.internal.TypeInference
private import codeql.rust.frameworks.stdlib.Stdlib
private import codeql.rust.frameworks.stdlib.Builtins as Builtins
Expand Down Expand Up @@ -437,9 +438,10 @@ module CertainTypeInference {
* Holds if `n` has complete and certain type information and if `n` has the
* resulting type at `path`.
*/
pragma[nomagic]
cached
Type inferCertainType(AstNode n, TypePath path) {
result = inferAnnotatedType(n, path)
result = inferAnnotatedType(n, path) and
Stages::TypeInferenceStage::ref()
or
result = inferCertainCallExprType(n, path)
or
Expand Down Expand Up @@ -3454,8 +3456,6 @@ private Type inferCastExprType(CastExpr ce, TypePath path) {

cached
private module Cached {
private import codeql.rust.internal.CachedStages

/** Holds if `receiver` is the receiver of a method call with an implicit dereference. */
cached
predicate receiverHasImplicitDeref(AstNode receiver) {
Expand Down