mirror of
https://github.com/github/codeql.git
synced 2025-12-16 16:53:25 +01:00
Rust: Reimplement type inference for impl Traits and await expressions
This commit is contained in:
Tom Hvitved
@@ -5,6 +5,7 @@
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private import rust
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private import codeql.rust.elements.internal.generated.ParentChild
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private import codeql.rust.internal.CachedStages
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private import codeql.rust.frameworks.stdlib.Bultins as Builtins
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private newtype TNamespace =
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TTypeNamespace() or
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@@ -178,6 +179,8 @@ abstract class ItemNode extends Locatable {
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or
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// type parameters have access to the associated items of its bounds
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result = this.(TypeParamItemNode).resolveABound().getASuccessorRec(name).(AssocItemNode)
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or
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result = this.(ImplTraitTypeReprItemNode).resolveABound().getASuccessorRec(name).(AssocItemNode)
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}
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/**
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@@ -645,6 +648,28 @@ class ImplItemNode extends ImplOrTraitItemNode instanceof Impl {
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}
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}
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private class ImplTraitTypeReprItemNode extends ItemNode instanceof ImplTraitTypeRepr {
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pragma[nomagic]
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Path getABoundPath() {
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result = super.getTypeBoundList().getABound().getTypeRepr().(PathTypeRepr).getPath()
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}
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pragma[nomagic]
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ItemNode resolveABound() { result = resolvePathFull(this.getABoundPath()) }
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override string getName() { result = "(impl trait)" }
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override Namespace getNamespace() { result.isType() }
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override Visibility getVisibility() { none() }
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override TypeParam getTypeParam(int i) { none() }
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override predicate hasCanonicalPath(Crate c) { none() }
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override string getCanonicalPath(Crate c) { none() }
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}
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private class MacroCallItemNode extends AssocItemNode instanceof MacroCall {
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override string getName() { result = "(macro call)" }
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@@ -1093,14 +1118,21 @@ private predicate crateDefEdge(CrateItemNode c, string name, ItemNode i) {
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not i instanceof Crate
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}
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private class BuiltinSourceFile extends SourceFileItemNode {
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BuiltinSourceFile() { this.getFile().getParentContainer() instanceof Builtins::BuiltinsFolder }
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}
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/**
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* Holds if `file` depends on crate `dep` named `name`.
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*/
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pragma[nomagic]
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private predicate crateDependencyEdge(SourceFileItemNode file, string name, CrateItemNode dep) {
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exists(CrateItemNode c |
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dep = c.(Crate).getDependency(name) and
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file = c.getASourceFile()
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)
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exists(CrateItemNode c | dep = c.(Crate).getDependency(name) | file = c.getASourceFile())
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or
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// Give builtin files, such as `await.rs`, access to `std`
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file instanceof BuiltinSourceFile and
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dep.getName() = name and
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name = "std"
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}
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private predicate useTreeDeclares(UseTree tree, string name) {
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@@ -1461,9 +1493,14 @@ private predicate externCrateEdge(ExternCrateItemNode ec, string name, CrateItem
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* [1]: https://doc.rust-lang.org/core/prelude/index.html
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* [2]: https://doc.rust-lang.org/std/prelude/index.html
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*/
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pragma[nomagic]
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private predicate preludeEdge(SourceFile f, string name, ItemNode i) {
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exists(Crate stdOrCore, ModuleLikeNode mod, ModuleItemNode prelude, ModuleItemNode rust |
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f = any(Crate c0 | stdOrCore = c0.getDependency(_) or stdOrCore = c0).getASourceFile() and
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f = any(Crate c0 | stdOrCore = c0.getDependency(_) or stdOrCore = c0).getASourceFile()
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or
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// Give builtin files, such as `await.rs`, access to the prelude
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f instanceof BuiltinSourceFile
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stdOrCore.getName() = ["std", "core"] and
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mod = stdOrCore.getSourceFile() and
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prelude = mod.getASuccessorRec("prelude") and
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@@ -1473,12 +1510,10 @@ private predicate preludeEdge(SourceFile f, string name, ItemNode i) {
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)
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}
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private import codeql.rust.frameworks.stdlib.Bultins as Builtins
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pragma[nomagic]
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private predicate builtin(string name, ItemNode i) {
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exists(SourceFileItemNode builtins |
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builtins.getFile().getParentContainer() instanceof Builtins::BuiltinsFolder and
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exists(BuiltinSourceFile builtins |
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builtins.getFile().getBaseName() = "types.rs" and
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i = builtins.getASuccessorRec(name)
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)
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}
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@@ -15,14 +15,11 @@ newtype TType =
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TTrait(Trait t) or
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TArrayType() or // todo: add size?
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TRefType() or // todo: add mut?
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TImplTraitType(int bounds) {
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bounds = any(ImplTraitTypeRepr impl).getTypeBoundList().getNumberOfBounds()
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} or
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TImplTraitType(ImplTraitTypeRepr impl) or
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TTypeParamTypeParameter(TypeParam t) or
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TAssociatedTypeTypeParameter(TypeAlias t) { any(TraitItemNode trait).getAnAssocItem() = t } or
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TRefTypeParameter() or
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TSelfTypeParameter(Trait t) or
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TImplTraitTypeParameter(ImplTraitType t, int i) { i in [0 .. t.getNumberOfBounds() - 1] }
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TSelfTypeParameter(Trait t)
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/**
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* A type without type arguments.
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@@ -184,30 +181,50 @@ class RefType extends Type, TRefType {
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}
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/**
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* An [`impl Trait`][1] type.
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* An [impl Trait][1] type.
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*
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* We represent `impl Trait` types as generic types with as many type parameters
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* as there are bounds.
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* Each syntactic `impl Trait` type gives rise to its own type, even if
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* two `impl Trait` types have the same bounds.
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*
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* [1] https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
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* [1]: https://doc.rust-lang.org/reference/types/impl-trait.html
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*/
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class ImplTraitType extends Type, TImplTraitType {
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private int bounds;
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ImplTraitTypeRepr impl;
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ImplTraitType() { this = TImplTraitType(bounds) }
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ImplTraitType() { this = TImplTraitType(impl) }
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/** Gets the number of bounds of this `impl Trait` type. */
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int getNumberOfBounds() { result = bounds }
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/** Gets the underlying AST node. */
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ImplTraitTypeRepr getImplTraitTypeRepr() { result = impl }
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/** Gets the function that this `impl Trait` belongs to. */
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abstract Function getFunction();
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override StructField getStructField(string name) { none() }
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override TupleField getTupleField(int i) { none() }
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override TypeParameter getTypeParameter(int i) { result = TImplTraitTypeParameter(this, i) }
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override TypeParameter getTypeParameter(int i) { none() }
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override string toString() { result = "impl Trait ..." }
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override string toString() { result = impl.toString() }
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override Location getLocation() { result instanceof EmptyLocation }
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override Location getLocation() { result = impl.getLocation() }
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}
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/**
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* An [impl Trait in return position][1] type, for example:
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*
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* ```rust
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* fn foo() -> impl Trait
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* ```
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*
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* [1]: https://doc.rust-lang.org/reference/types/impl-trait.html#r-type.impl-trait.return
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*/
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class ImplTraitReturnType extends ImplTraitType {
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private Function function;
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ImplTraitReturnType() { impl = function.getRetType().getTypeRepr() }
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override Function getFunction() { result = function }
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}
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/** A type parameter. */
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@@ -219,7 +236,7 @@ abstract class TypeParameter extends Type {
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override TypeParameter getTypeParameter(int i) { none() }
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}
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private class RawTypeParameter = @type_param or @trait or @type_alias;
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private class RawTypeParameter = @type_param or @trait or @type_alias or @impl_trait_type_repr;
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private predicate id(RawTypeParameter x, RawTypeParameter y) { x = y }
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@@ -316,23 +333,34 @@ class SelfTypeParameter extends TypeParameter, TSelfTypeParameter {
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}
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/**
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* An `impl Trait` type parameter.
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* An [impl Trait in argument position][1] type, for example:
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*
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* ```rust
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* fn foo(arg: impl Trait)
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* ```
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*
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* Such types are syntactic sugar for type parameters, that is
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*
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* ```rust
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* fn foo<T: Trait>(arg: T)
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* ```
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*
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* so we model them as type parameters.
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*
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* [1]: https://doc.rust-lang.org/reference/types/impl-trait.html#r-type.impl-trait.param
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*/
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class ImplTraitTypeParameter extends TypeParameter, TImplTraitTypeParameter {
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private ImplTraitType implTraitType;
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private int i;
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class ImplTraitTypeTypeParameter extends ImplTraitType, TypeParameter {
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private Function function;
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ImplTraitTypeParameter() { this = TImplTraitTypeParameter(implTraitType, i) }
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ImplTraitTypeTypeParameter() { impl = function.getParamList().getAParam().getTypeRepr() }
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/** Gets the `impl Trait` type that this parameter belongs to. */
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ImplTraitType getImplTraitType() { result = implTraitType }
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override Function getFunction() { result = function }
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/** Gets the index of this type parameter. */
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int getIndex() { result = i }
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override StructField getStructField(string name) { none() }
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override string toString() { result = "impl Trait<" + i.toString() + ">" }
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override TupleField getTupleField(int i) { none() }
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override Location getLocation() { result instanceof EmptyLocation }
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override TypeParameter getTypeParameter(int i) { none() }
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}
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/**
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@@ -370,3 +398,7 @@ final class SelfTypeBoundTypeAbstraction extends TypeAbstraction, Name {
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override TypeParamTypeParameter getATypeParameter() { none() }
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}
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final class ImplTraitTypeReprAbstraction extends TypeAbstraction, ImplTraitTypeRepr {
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override TypeParamTypeParameter getATypeParameter() { none() }
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}
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@@ -77,16 +77,6 @@ private module Input1 implements InputSig1<Location> {
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apos.asMethodTypeArgumentPosition() = ppos.asTypeParam().getPosition()
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}
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private int getImplTraitTypeParameterId(ImplTraitTypeParameter tp) {
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tp =
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rank[result](ImplTraitTypeParameter tp0, int bounds, int i |
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bounds = tp0.getImplTraitType().getNumberOfBounds() and
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i = tp0.getIndex()
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|
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tp0 order by bounds, i
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)
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}
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int getTypeParameterId(TypeParameter tp) {
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tp =
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rank[result](TypeParameter tp0, int kind, int id |
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@@ -98,11 +88,9 @@ private module Input1 implements InputSig1<Location> {
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exists(AstNode node | id = idOfTypeParameterAstNode(node) |
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node = tp0.(TypeParamTypeParameter).getTypeParam() or
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node = tp0.(AssociatedTypeTypeParameter).getTypeAlias() or
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node = tp0.(SelfTypeParameter).getTrait()
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node = tp0.(SelfTypeParameter).getTrait() or
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node = tp0.(ImplTraitTypeTypeParameter).getImplTraitTypeRepr()
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)
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or
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kind = 2 and
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id = getImplTraitTypeParameterId(tp0)
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|
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tp0 order by kind, id
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)
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@@ -124,12 +112,22 @@ private module Input2 implements InputSig2 {
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class TypeMention = TM::TypeMention;
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TypeMention getABaseTypeMention(Type t) { none() }
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TypeMention getABaseTypeMention(Type t) {
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result =
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t.(ImplTraitReturnType).getImplTraitTypeRepr().getTypeBoundList().getABound().getTypeRepr()
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}
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TypeMention getATypeParameterConstraint(TypeParameter tp) {
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result = tp.(TypeParamTypeParameter).getTypeParam().getTypeBoundList().getABound().getTypeRepr()
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or
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result = tp.(SelfTypeParameter).getTrait()
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or
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result =
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tp.(ImplTraitTypeTypeParameter)
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.getImplTraitTypeRepr()
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.getTypeBoundList()
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.getABound()
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.getTypeRepr()
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}
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/**
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@@ -169,6 +167,12 @@ private module Input2 implements InputSig2 {
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condition = self and
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constraint = self.getTrait()
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)
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or
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exists(ImplTraitTypeRepr impl |
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abs = impl and
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condition = impl and
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constraint = impl.getTypeBoundList().getABound().getTypeRepr()
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)
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}
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}
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@@ -241,12 +245,6 @@ private predicate typeEquality(AstNode n1, TypePath prefix1, AstNode n2, TypePat
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or
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n1 = n2.(ParenExpr).getExpr()
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or
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n2 =
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any(BlockExpr be |
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not be.isAsync() and
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n1 = be.getStmtList().getTailExpr()
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)
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or
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n1 = n2.(IfExpr).getABranch()
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or
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n1 = n2.(MatchExpr).getAnArm().getExpr()
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@@ -265,6 +263,19 @@ private predicate typeEquality(AstNode n1, TypePath prefix1, AstNode n2, TypePat
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n1 = n2.(DerefExpr).getExpr() and
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prefix1 = TypePath::singleton(TRefTypeParameter()) and
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prefix2.isEmpty()
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or
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exists(BlockExpr be |
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n1 = be and
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n2 = be.getStmtList().getTailExpr() and
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if be.isAsync()
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then
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prefix1 = TypePath::singleton(getFutureOutputTypeParameter()) and
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prefix2.isEmpty()
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else (
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prefix1.isEmpty() and
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prefix2.isEmpty()
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)
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)
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}
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pragma[nomagic]
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@@ -580,6 +591,9 @@ private module CallExprBaseMatchingInput implements MatchingInputSig {
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ppos.isImplicit() and
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result.(AssociatedTypeTypeParameter).getTrait() = trait
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)
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or
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ppos.isImplicit() and
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this = result.(ImplTraitTypeTypeParameter).getFunction()
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}
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override Type getParameterType(DeclarationPosition dpos, TypePath path) {
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@@ -599,9 +613,22 @@ private module CallExprBaseMatchingInput implements MatchingInputSig {
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)
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}
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override Type getReturnType(TypePath path) {
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private Type resolveRetType(TypePath path) {
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result = this.getRetType().getTypeRepr().(TypeMention).resolveTypeAt(path)
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}
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override Type getReturnType(TypePath path) {
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if this.isAsync()
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then
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path.isEmpty() and
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result = getFutureTraitType()
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or
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exists(TypePath suffix |
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result = this.resolveRetType(suffix) and
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path = TypePath::cons(getFutureOutputTypeParameter(), suffix)
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)
|
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else result = this.resolveRetType(path)
|
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}
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}
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private predicate argPos(CallExprBase call, Expr e, int pos, boolean isMethodCall) {
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@@ -1027,26 +1054,110 @@ private StructType inferLiteralType(LiteralExpr le) {
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)
|
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}
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pragma[nomagic]
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private TraitType getFutureTraitType() { result.getTrait() instanceof FutureTrait }
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pragma[nomagic]
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private AssociatedTypeTypeParameter getFutureOutputTypeParameter() {
|
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result.getTypeAlias() = any(FutureTrait ft).getOutputType()
|
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}
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||||
|
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pragma[nomagic]
|
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private Type inferAwaitExprType(AwaitExpr ae, TypePath path) {
|
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exists(TypePath exprPath | result = inferType(ae.getExpr(), exprPath) |
|
||||
exprPath
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.isCons(TImplTraitTypeParameter(_, _),
|
||||
any(TypePath path0 | path0.isCons(getFutureOutputTypeParameter(), path)))
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/**
|
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* A matching configuration for resolving types of `.await` expressions.
|
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*/
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private module AwaitExprMatchingInput implements MatchingInputSig {
|
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private newtype TDeclarationPosition =
|
||||
TSelfDeclarationPosition() or
|
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TOutputPos()
|
||||
|
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class DeclarationPosition extends TDeclarationPosition {
|
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predicate isSelf() { this = TSelfDeclarationPosition() }
|
||||
|
||||
predicate isOutput() { this = TOutputPos() }
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||||
|
||||
string toString() {
|
||||
this.isSelf() and
|
||||
result = "self"
|
||||
or
|
||||
path = exprPath and
|
||||
not (
|
||||
exprPath = TypePath::singleton(TImplTraitTypeParameter(_, _)) and
|
||||
result.(TraitType).getTrait() instanceof FutureTrait
|
||||
) and
|
||||
not exprPath
|
||||
.isCons(TImplTraitTypeParameter(_, _),
|
||||
any(TypePath path0 | path0.isCons(getFutureOutputTypeParameter(), _)))
|
||||
this.isOutput() and
|
||||
result = "(output)"
|
||||
}
|
||||
}
|
||||
|
||||
private class BuiltinsAwaitFile extends File {
|
||||
BuiltinsAwaitFile() {
|
||||
this.getBaseName() = "await.rs" and
|
||||
this.getParentContainer() instanceof Builtins::BuiltinsFolder
|
||||
}
|
||||
}
|
||||
|
||||
class Declaration extends Function {
|
||||
Declaration() {
|
||||
this.getFile() instanceof BuiltinsAwaitFile and
|
||||
this.getName().getText() = "await_type_matching"
|
||||
}
|
||||
|
||||
TypeParameter getTypeParameter(TypeParameterPosition ppos) {
|
||||
typeParamMatchPosition(this.getGenericParamList().getATypeParam(), result, ppos)
|
||||
}
|
||||
|
||||
Type getDeclaredType(DeclarationPosition dpos, TypePath path) {
|
||||
dpos.isSelf() and
|
||||
result = this.getParamList().getParam(0).getTypeRepr().(TypeMention).resolveTypeAt(path)
|
||||
or
|
||||
dpos.isOutput() and
|
||||
result = this.getRetType().getTypeRepr().(TypeMention).resolveTypeAt(path)
|
||||
}
|
||||
}
|
||||
|
||||
class AccessPosition = DeclarationPosition;
|
||||
|
||||
class Access extends AwaitExpr {
|
||||
Type getTypeArgument(TypeArgumentPosition apos, TypePath path) { none() }
|
||||
|
||||
AstNode getNodeAt(AccessPosition apos) {
|
||||
result = this.getExpr() and
|
||||
apos.isSelf()
|
||||
or
|
||||
result = this and
|
||||
apos.isOutput()
|
||||
}
|
||||
|
||||
Type getInferredType(AccessPosition apos, TypePath path) {
|
||||
result = inferType(this.getNodeAt(apos), path)
|
||||
}
|
||||
|
||||
Declaration getTarget() { exists(this) and exists(result) }
|
||||
}
|
||||
|
||||
predicate accessDeclarationPositionMatch(AccessPosition apos, DeclarationPosition dpos) {
|
||||
apos = dpos
|
||||
}
|
||||
}
|
||||
|
||||
pragma[nomagic]
|
||||
private TraitType inferAsyncBlockExprRootType(AsyncBlockExpr abe) {
|
||||
// `typeEquality` handles the non-root case
|
||||
exists(abe) and
|
||||
result = getFutureTraitType()
|
||||
}
|
||||
|
||||
private module AwaitExprMatching = Matching<AwaitExprMatchingInput>;
|
||||
|
||||
pragma[nomagic]
|
||||
private Type inferAwaitExprType(AstNode n, TypePath path) {
|
||||
exists(AwaitExprMatchingInput::Access a, AwaitExprMatchingInput::AccessPosition apos |
|
||||
n = a.getNodeAt(apos) and
|
||||
result = AwaitExprMatching::inferAccessType(a, apos, path)
|
||||
)
|
||||
or
|
||||
// This case is needed for `async` functions and blocks, where we assign
|
||||
// the type `Future<Output = T>` directly instead of `impl Future<Output = T>`
|
||||
//
|
||||
// TODO: It would be better if we could handle this in the shared library
|
||||
exists(TypePath exprPath |
|
||||
result = inferType(n.(AwaitExpr).getExpr(), exprPath) and
|
||||
exprPath.isCons(getFutureOutputTypeParameter(), path)
|
||||
)
|
||||
}
|
||||
|
||||
@@ -1196,6 +1307,8 @@ private Function getTypeParameterMethod(TypeParameter tp, string name) {
|
||||
result = getMethodSuccessor(tp.(TypeParamTypeParameter).getTypeParam(), name)
|
||||
or
|
||||
result = getMethodSuccessor(tp.(SelfTypeParameter).getTrait(), name)
|
||||
or
|
||||
result = getMethodSuccessor(tp.(ImplTraitTypeTypeParameter).getImplTraitTypeRepr(), name)
|
||||
}
|
||||
|
||||
/** Gets a method from an `impl` block that matches the method call `mc`. */
|
||||
@@ -1208,8 +1321,8 @@ private Function getMethodFromImpl(MethodCall mc) {
|
||||
|
||||
bindingset[trait, name]
|
||||
pragma[inline_late]
|
||||
private Function getTraitMethod(TraitType trait, string name) {
|
||||
result = getMethodSuccessor(trait.getTrait(), name)
|
||||
private Function getTraitMethod(ImplTraitReturnType trait, string name) {
|
||||
result = getMethodSuccessor(trait.getImplTraitTypeRepr(), name)
|
||||
}
|
||||
|
||||
/**
|
||||
@@ -1225,9 +1338,7 @@ private Function inferMethodCallTarget(MethodCall mc) {
|
||||
result = getTypeParameterMethod(mc.getTypeAt(TypePath::nil()), mc.getMethodName())
|
||||
or
|
||||
// The type of the receiver is an `impl Trait` type.
|
||||
result =
|
||||
getTraitMethod(mc.getTypeAt(TypePath::singleton(TImplTraitTypeParameter(_, _))),
|
||||
mc.getMethodName())
|
||||
result = getTraitMethod(mc.getTypeAt(TypePath::nil()), mc.getMethodName())
|
||||
}
|
||||
|
||||
cached
|
||||
@@ -1404,6 +1515,9 @@ private module Cached {
|
||||
result = inferLiteralType(n) and
|
||||
path.isEmpty()
|
||||
or
|
||||
result = inferAsyncBlockExprRootType(n) and
|
||||
path.isEmpty()
|
||||
or
|
||||
result = inferAwaitExprType(n, path)
|
||||
}
|
||||
}
|
||||
@@ -1421,7 +1535,7 @@ private module Debug {
|
||||
exists(string filepath, int startline, int startcolumn, int endline, int endcolumn |
|
||||
result.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn) and
|
||||
filepath.matches("%/main.rs") and
|
||||
startline = 1334
|
||||
startline = 1718
|
||||
)
|
||||
}
|
||||
|
||||
|
||||
@@ -191,13 +191,9 @@ class PathTypeReprMention extends TypeMention instanceof PathTypeRepr {
|
||||
}
|
||||
|
||||
class ImplTraitTypeReprMention extends TypeMention instanceof ImplTraitTypeRepr {
|
||||
override TypeMention getTypeArgument(int i) {
|
||||
result = super.getTypeBoundList().getBound(i).getTypeRepr()
|
||||
}
|
||||
override TypeMention getTypeArgument(int i) { none() }
|
||||
|
||||
override ImplTraitType resolveType() {
|
||||
result.getNumberOfBounds() = super.getTypeBoundList().getNumberOfBounds()
|
||||
}
|
||||
override ImplTraitType resolveType() { result.getImplTraitTypeRepr() = this }
|
||||
}
|
||||
|
||||
private TypeParameter pathGetTypeParameter(TypeAlias alias, int i) {
|
||||
|
||||
@@ -1667,11 +1667,11 @@ mod async_ {
|
||||
f1().await.f(); // $ method=S1f
|
||||
f2().await.f(); // $ method=S1f
|
||||
f3().await.f(); // $ method=S1f
|
||||
S2.await.f(); // $ MISSING: method=S1f
|
||||
S2.await.f(); // $ method=S1f
|
||||
let b = async {
|
||||
S1
|
||||
};
|
||||
b.await.f(); // $ MISSING: method=S1f
|
||||
b.await.f(); // $ method=S1f
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1727,10 +1727,10 @@ mod impl_trait {
|
||||
x.f1(); // $ method=Trait1f1
|
||||
x.f2(); // $ method=Trait2f2
|
||||
let a = get_a_my_trait();
|
||||
let b = uses_my_trait1(a); // $ MISSING: type=b:S2
|
||||
let b = uses_my_trait1(a); // $ type=b:S2
|
||||
let a = get_a_my_trait();
|
||||
let c = uses_my_trait2(a); // $ type=c:S2
|
||||
let d = uses_my_trait2(S1); // $ MISSING: type=d:S2
|
||||
let d = uses_my_trait2(S1); // $ type=d:S2
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -2377,12 +2377,12 @@ inferType
|
||||
| main.rs:1639:18:1639:21 | SelfParam | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1642:25:1644:5 | { ... } | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1643:9:1643:10 | S1 | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1646:41:1650:5 | { ... } | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1646:41:1650:5 | { ... } | impl Trait<0> | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1646:41:1650:5 | { ... } | impl Trait<0>.Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1647:9:1649:9 | { ... } | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1647:9:1649:9 | { ... } | impl Trait<0> | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1647:9:1649:9 | { ... } | impl Trait<0>.Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1646:41:1650:5 | { ... } | | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1646:41:1650:5 | { ... } | | main.rs:1646:16:1646:39 | ImplTraitTypeRepr |
|
||||
| main.rs:1646:41:1650:5 | { ... } | Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1647:9:1649:9 | { ... } | | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1647:9:1649:9 | { ... } | | main.rs:1646:16:1646:39 | ImplTraitTypeRepr |
|
||||
| main.rs:1647:9:1649:9 | { ... } | Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1648:13:1648:14 | S1 | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1657:17:1657:46 | SelfParam | | {EXTERNAL LOCATION} | Pin |
|
||||
| main.rs:1657:17:1657:46 | SelfParam | Ptr | file://:0:0:0:0 | & |
|
||||
@@ -2394,29 +2394,27 @@ inferType
|
||||
| main.rs:1658:13:1658:38 | ...::Ready(...) | | {EXTERNAL LOCATION} | Poll |
|
||||
| main.rs:1658:13:1658:38 | ...::Ready(...) | T | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1658:36:1658:37 | S1 | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1662:41:1664:5 | { ... } | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1662:41:1664:5 | { ... } | | main.rs:1652:5:1652:14 | S2 |
|
||||
| main.rs:1662:41:1664:5 | { ... } | impl Trait<0> | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1662:41:1664:5 | { ... } | impl Trait<0>.Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1663:9:1663:10 | S2 | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1662:41:1664:5 | { ... } | | main.rs:1662:16:1662:39 | ImplTraitTypeRepr |
|
||||
| main.rs:1663:9:1663:10 | S2 | | main.rs:1652:5:1652:14 | S2 |
|
||||
| main.rs:1663:9:1663:10 | S2 | impl Trait<0> | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1663:9:1663:10 | S2 | impl Trait<0>.Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1667:9:1667:12 | f1(...) | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1663:9:1663:10 | S2 | | main.rs:1662:16:1662:39 | ImplTraitTypeRepr |
|
||||
| main.rs:1667:9:1667:12 | f1(...) | | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1667:9:1667:12 | f1(...) | Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1667:9:1667:18 | await ... | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1668:9:1668:12 | f2(...) | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1668:9:1668:12 | f2(...) | impl Trait<0> | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1668:9:1668:12 | f2(...) | impl Trait<0>.Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1668:9:1668:18 | await ... | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1668:9:1668:12 | f2(...) | | main.rs:1646:16:1646:39 | ImplTraitTypeRepr |
|
||||
| main.rs:1668:9:1668:18 | await ... | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1669:9:1669:12 | f3(...) | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1669:9:1669:12 | f3(...) | impl Trait<0> | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1669:9:1669:12 | f3(...) | impl Trait<0>.Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1669:9:1669:18 | await ... | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1669:9:1669:12 | f3(...) | | main.rs:1662:16:1662:39 | ImplTraitTypeRepr |
|
||||
| main.rs:1669:9:1669:18 | await ... | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1670:9:1670:10 | S2 | | main.rs:1652:5:1652:14 | S2 |
|
||||
| main.rs:1670:9:1670:16 | await S2 | | main.rs:1652:5:1652:14 | S2 |
|
||||
| main.rs:1670:9:1670:16 | await S2 | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1671:13:1671:13 | b | | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1671:13:1671:13 | b | Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1671:17:1673:9 | { ... } | | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1671:17:1673:9 | { ... } | Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1672:13:1672:14 | S1 | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1674:9:1674:9 | b | | {EXTERNAL LOCATION} | trait Future |
|
||||
| main.rs:1674:9:1674:9 | b | Output | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1674:9:1674:15 | await b | | main.rs:1636:5:1636:14 | S1 |
|
||||
| main.rs:1684:15:1684:19 | SelfParam | | file://:0:0:0:0 | & |
|
||||
| main.rs:1684:15:1684:19 | SelfParam | &T | main.rs:1683:5:1685:5 | Self [trait Trait1] |
|
||||
| main.rs:1688:15:1688:19 | SelfParam | | file://:0:0:0:0 | & |
|
||||
@@ -2425,77 +2423,48 @@ inferType
|
||||
| main.rs:1692:15:1692:19 | SelfParam | &T | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1696:15:1696:19 | SelfParam | | file://:0:0:0:0 | & |
|
||||
| main.rs:1696:15:1696:19 | SelfParam | &T | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1699:37:1701:5 | { ... } | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1699:37:1701:5 | { ... } | | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1699:37:1701:5 | { ... } | impl Trait<0> | main.rs:1683:5:1685:5 | trait Trait1 |
|
||||
| main.rs:1699:37:1701:5 | { ... } | impl Trait<1> | main.rs:1687:5:1689:5 | trait Trait2 |
|
||||
| main.rs:1700:9:1700:10 | S1 | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1699:37:1701:5 | { ... } | | main.rs:1699:16:1699:35 | ImplTraitTypeRepr |
|
||||
| main.rs:1700:9:1700:10 | S1 | | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1700:9:1700:10 | S1 | impl Trait<0> | main.rs:1683:5:1685:5 | trait Trait1 |
|
||||
| main.rs:1700:9:1700:10 | S1 | impl Trait<1> | main.rs:1687:5:1689:5 | trait Trait2 |
|
||||
| main.rs:1700:9:1700:10 | S1 | | main.rs:1699:16:1699:35 | ImplTraitTypeRepr |
|
||||
| main.rs:1704:18:1704:22 | SelfParam | | file://:0:0:0:0 | & |
|
||||
| main.rs:1704:18:1704:22 | SelfParam | &T | main.rs:1703:5:1705:5 | Self [trait MyTrait] |
|
||||
| main.rs:1708:18:1708:22 | SelfParam | | file://:0:0:0:0 | & |
|
||||
| main.rs:1708:18:1708:22 | SelfParam | &T | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1708:31:1710:9 | { ... } | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1709:13:1709:14 | S2 | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1713:45:1715:5 | { ... } | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1713:45:1715:5 | { ... } | | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1713:45:1715:5 | { ... } | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1713:45:1715:5 | { ... } | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1714:9:1714:10 | S1 | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1713:45:1715:5 | { ... } | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1714:9:1714:10 | S1 | | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1714:9:1714:10 | S1 | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1714:9:1714:10 | S1 | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1714:9:1714:10 | S1 | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1717:41:1717:41 | t | | main.rs:1717:26:1717:38 | B |
|
||||
| main.rs:1717:52:1719:5 | { ... } | | main.rs:1717:23:1717:23 | A |
|
||||
| main.rs:1718:9:1718:9 | t | | main.rs:1717:26:1717:38 | B |
|
||||
| main.rs:1718:9:1718:17 | t.get_a() | | main.rs:1717:23:1717:23 | A |
|
||||
| main.rs:1721:26:1721:26 | t | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1721:26:1721:26 | t | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1721:26:1721:26 | t | impl Trait<0>.A | main.rs:1721:23:1721:23 | A |
|
||||
| main.rs:1721:26:1721:26 | t | | main.rs:1721:29:1721:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1721:51:1723:5 | { ... } | | main.rs:1721:23:1721:23 | A |
|
||||
| main.rs:1722:9:1722:9 | t | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1722:9:1722:9 | t | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1722:9:1722:9 | t | impl Trait<0>.A | main.rs:1721:23:1721:23 | A |
|
||||
| main.rs:1722:9:1722:9 | t | | main.rs:1721:29:1721:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1722:9:1722:17 | t.get_a() | | main.rs:1721:23:1721:23 | A |
|
||||
| main.rs:1726:13:1726:13 | x | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1726:13:1726:13 | x | impl Trait<0> | main.rs:1683:5:1685:5 | trait Trait1 |
|
||||
| main.rs:1726:13:1726:13 | x | impl Trait<1> | main.rs:1687:5:1689:5 | trait Trait2 |
|
||||
| main.rs:1726:17:1726:20 | f1(...) | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1726:17:1726:20 | f1(...) | impl Trait<0> | main.rs:1683:5:1685:5 | trait Trait1 |
|
||||
| main.rs:1726:17:1726:20 | f1(...) | impl Trait<1> | main.rs:1687:5:1689:5 | trait Trait2 |
|
||||
| main.rs:1727:9:1727:9 | x | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1727:9:1727:9 | x | impl Trait<0> | main.rs:1683:5:1685:5 | trait Trait1 |
|
||||
| main.rs:1727:9:1727:9 | x | impl Trait<1> | main.rs:1687:5:1689:5 | trait Trait2 |
|
||||
| main.rs:1728:9:1728:9 | x | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1728:9:1728:9 | x | impl Trait<0> | main.rs:1683:5:1685:5 | trait Trait1 |
|
||||
| main.rs:1728:9:1728:9 | x | impl Trait<1> | main.rs:1687:5:1689:5 | trait Trait2 |
|
||||
| main.rs:1729:13:1729:13 | a | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1729:13:1729:13 | a | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1729:13:1729:13 | a | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1729:17:1729:32 | get_a_my_trait(...) | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1729:17:1729:32 | get_a_my_trait(...) | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1729:17:1729:32 | get_a_my_trait(...) | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1730:32:1730:32 | a | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1730:32:1730:32 | a | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1730:32:1730:32 | a | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1731:13:1731:13 | a | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1731:13:1731:13 | a | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1731:13:1731:13 | a | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1731:17:1731:32 | get_a_my_trait(...) | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1731:17:1731:32 | get_a_my_trait(...) | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1731:17:1731:32 | get_a_my_trait(...) | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1726:13:1726:13 | x | | main.rs:1699:16:1699:35 | ImplTraitTypeRepr |
|
||||
| main.rs:1726:17:1726:20 | f1(...) | | main.rs:1699:16:1699:35 | ImplTraitTypeRepr |
|
||||
| main.rs:1727:9:1727:9 | x | | main.rs:1699:16:1699:35 | ImplTraitTypeRepr |
|
||||
| main.rs:1728:9:1728:9 | x | | main.rs:1699:16:1699:35 | ImplTraitTypeRepr |
|
||||
| main.rs:1729:13:1729:13 | a | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1729:17:1729:32 | get_a_my_trait(...) | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1730:13:1730:13 | b | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1730:17:1730:33 | uses_my_trait1(...) | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1730:32:1730:32 | a | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1731:13:1731:13 | a | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1731:17:1731:32 | get_a_my_trait(...) | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1732:13:1732:13 | c | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1732:17:1732:33 | uses_my_trait2(...) | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1732:32:1732:32 | a | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1732:32:1732:32 | a | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1732:32:1732:32 | a | impl Trait<0>.A | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1733:32:1733:33 | S1 | | file://:0:0:0:0 | impl Trait ... |
|
||||
| main.rs:1732:32:1732:32 | a | | main.rs:1713:28:1713:43 | ImplTraitTypeRepr |
|
||||
| main.rs:1733:13:1733:13 | d | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1733:17:1733:34 | uses_my_trait2(...) | | main.rs:1681:5:1681:14 | S2 |
|
||||
| main.rs:1733:32:1733:33 | S1 | | main.rs:1680:5:1680:14 | S1 |
|
||||
| main.rs:1733:32:1733:33 | S1 | impl Trait<0> | main.rs:1703:5:1705:5 | trait MyTrait |
|
||||
| main.rs:1739:5:1739:20 | ...::f(...) | | main.rs:67:5:67:21 | Foo |
|
||||
| main.rs:1740:5:1740:60 | ...::g(...) | | main.rs:67:5:67:21 | Foo |
|
||||
| main.rs:1740:20:1740:38 | ...::Foo {...} | | main.rs:67:5:67:21 | Foo |
|
||||
| main.rs:1740:41:1740:59 | ...::Foo {...} | | main.rs:67:5:67:21 | Foo |
|
||||
| main.rs:1756:5:1756:15 | ...::f(...) | | {EXTERNAL LOCATION} | trait Future |
|
||||
testFailures
|
||||
|
||||
@@ -4,6 +4,8 @@ multiplePathResolutions
|
||||
| src/main.rs:8:21:8:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:8:21:8:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:8:21:8:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:8:21:8:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:19:21:19:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:19:21:19:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:19:21:19:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:19:21:19:33 | ...::from | file://:0:0:0:0 | fn from |
|
||||
@@ -14,6 +16,8 @@ multiplePathResolutions
|
||||
| src/main.rs:25:23:25:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:25:23:25:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:25:23:25:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:25:23:25:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:26:38:26:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:26:38:26:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:26:38:26:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:26:38:26:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
@@ -24,6 +28,8 @@ multiplePathResolutions
|
||||
| src/main.rs:39:23:39:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:39:23:39:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:39:23:39:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:39:23:39:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:40:38:40:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:40:38:40:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:40:38:40:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:40:38:40:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
@@ -34,6 +40,8 @@ multiplePathResolutions
|
||||
| src/main.rs:52:23:52:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:52:23:52:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:52:23:52:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:52:23:52:35 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:53:38:53:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:53:38:53:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:53:38:53:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
| src/main.rs:53:38:53:50 | ...::from | file://:0:0:0:0 | fn from |
|
||||
|
||||
7
rust/tools/builtins/await.rs
Normal file
7
rust/tools/builtins/await.rs
Normal file
@@ -0,0 +1,7 @@
|
||||
use std::future::Future;
|
||||
|
||||
fn await_type_matching<T1, T2: Future<Output = T1>>(x: T2) -> T1 {
|
||||
panic!(
|
||||
"This function exists only in order to implement type inference for `.await` expressions."
|
||||
);
|
||||
}
|
||||
@@ -220,6 +220,10 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
|
||||
predicate isCons(TypeParameter tp, TypePath suffix) {
|
||||
suffix = this.stripPrefix(TypePath::singleton(tp))
|
||||
}
|
||||
|
||||
/** Gets the head of this path, if any. */
|
||||
bindingset[this]
|
||||
TypeParameter getHead() { result = this.getTypeParameter(0) }
|
||||
}
|
||||
|
||||
/** Provides predicates for constructing `TypePath`s. */
|
||||
@@ -1110,7 +1114,7 @@ module Make1<LocationSig Location, InputSig1<Location> Input1> {
|
||||
Declaration decl, DeclarationPosition dpos, Type base, TypePath path, TypeParameter tp
|
||||
) {
|
||||
tp = decl.getDeclaredType(dpos, path) and
|
||||
path.isCons(base.getATypeParameter(), _)
|
||||
base.getATypeParameter() = path.getHead()
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
Reference in New Issue
Block a user