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Fixed declaration emit issue related to a qualifier being reused cross-file #58810

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merged 3 commits into from
Jun 14, 2024
Merged

Fixed declaration emit issue related to a qualifier being reused cross-file #58810

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c51749a
Fixed declaration emit issue related to a qualifier being reused cros…
Andarist Jun 9, 2024
68a0fcf
clone more nodes
Andarist Jun 12, 2024
2a217f0
try with `cloneNode`
Andarist Jun 12, 2024
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16 changes: 8 additions & 8 deletions src/compiler/checker.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -8726,7 +8726,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
}
if (isJSDocTypeLiteral(node)) {
return factory.createTypeLiteralNode(map(node.jsDocPropertyTags, t => {
const name = isIdentifier(t.name) ? t.name : t.name.right;
const name = visitNode(isIdentifier(t.name) ? t.name : t.name.right, visitExistingNodeTreeSymbols, isIdentifier)!;
const typeViaParent = getTypeOfPropertyOfType(getTypeFromTypeNode(context, node), name.escapedText);
const overrideTypeNode = typeViaParent && t.typeExpression && getTypeFromTypeNode(context, t.typeExpression.type) !== typeViaParent ? typeToTypeNodeHelper(typeViaParent, context) : undefined;

Expand Down Expand Up @@ -8765,7 +8765,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
/*modifiers*/ undefined,
getEffectiveDotDotDotForParameter(p),
setTextRange(context, factory.createIdentifier(getNameForJSDocFunctionParameter(p, i)), p),
p.questionToken,
factory.cloneNode(p.questionToken),
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Some other code paths in this function do a similar "cloning" of the .questionToken so I assume that it's the right thing to do here and in other places that I touched

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Those 2 call sites related to .questionToken are also related to JSDoc. I wonder if this cloning even matters in this context.

visitNode(p.type, visitExistingNodeTreeSymbols, isTypeNode),
/*initializer*/ undefined,
)),
Expand All @@ -8780,7 +8780,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
/*modifiers*/ undefined,
getEffectiveDotDotDotForParameter(p),
setTextRange(context, factory.createIdentifier(getNameForJSDocFunctionParameter(p, i)), p),
p.questionToken,
factory.cloneNode(p.questionToken),
visitNode(p.type, visitExistingNodeTreeSymbols, isTypeNode),
/*initializer*/ undefined,
)),
Expand All @@ -8798,7 +8798,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
if (isTypeParameterDeclaration(node)) {
return factory.updateTypeParameterDeclaration(
node,
node.modifiers,
visitNodes(node.modifiers, visitExistingNodeTreeSymbols, isModifier),
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those modifiers are just tokens so i guess i could just map over them and clone them?

setTextRange(context, typeParameterToName(getDeclaredTypeOfSymbol(getSymbolOfDeclaration(node)), context), node),
visitNode(node.constraint, visitExistingNodeTreeSymbols, isTypeNode),
visitNode(node.default, visitExistingNodeTreeSymbols, isTypeNode),
Expand Down Expand Up @@ -8839,8 +8839,8 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
return factory.updateImportTypeNode(
node,
factory.updateLiteralTypeNode(node.argument, rewriteModuleSpecifier(node, node.argument.literal)),
node.attributes,
node.qualifier,
visitNode(node.attributes, visitExistingNodeTreeSymbols, isImportAttributes),
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those are not jus flat tokens so I wasn't quite sure what to do about those, it seemed like maybe i should deep clone them?

visitNode(node.qualifier, visitExistingNodeTreeSymbols, isEntityName),
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@MichaelMitchell-at MichaelMitchell-at Jun 10, 2024 •
edited
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I definitely don't have enough context on the workings of the checker to give any informed feedback, but I can at least ask at a high level do we have some confidence whether anything more could be done to the structure of the code to avoid this general class of problem?

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Tbh, I don't know this part of TS too well either so we need to wait for @weswigham or @dragomirtitian to give some feedback on this. I'd expect that other things in this function (like node.attributes here) should be wrapped like this too (if only this is the right fix).

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I would definitely suspect a lot of this needs this same fix.

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100% - any child node we copy should have its' children visited - any missing visitor calls on manually remapped nodes are an oversight, presumably.

visitNodes(node.typeArguments, visitExistingNodeTreeSymbols, isTypeNode),
node.isTypeOf,
);
Expand Down Expand Up @@ -8904,9 +8904,9 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
parameterName = result;
}
else {
parameterName = node.parameterName;
parameterName = factory.cloneNode(node.parameterName);
}
return factory.updateTypePredicateNode(node, node.assertsModifier, parameterName, visitNode(node.type, visitExistingNodeTreeSymbols, isTypeNode));
return factory.updateTypePredicateNode(node, factory.cloneNode(node.assertsModifier), parameterName, visitNode(node.type, visitExistingNodeTreeSymbols, isTypeNode));
}

if (isTupleTypeNode(node) || isTypeLiteralNode(node) || isMappedTypeNode(node)) {
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there are also places in this function that do smth like:

if (visited === node) {
  visited = factory.cloneNode(node)
}

this pattern is not applied consistently across the whole function, should it be? 🤔

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I suspect yes.... Sure seems like though that we should make some sort of wrapper for the visitor func that would check that. Though I feel like I've seen that exact code in some visitor transformer code already (maybe we're not going through that)

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I think this might be a bigger change so I'd leave it out of this PR. I just want to flag this as a potential problem.

Expand Down
43 changes: 43 additions & 0 deletions tests/baselines/reference/declarationEmitTopLevelNodeFromCrossFile2.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
//// [tests/cases/compiler/declarationEmitTopLevelNodeFromCrossFile2.ts] ////

//// [a.ts]
import { boxedBox } from "./boxedBox";

export const _ = boxedBox;

// At index 83
/**
* wat
*/

//// [boxedBox.d.ts]
export declare const boxedBox: import("./box").Box<{
boxed: import("./box").Box<number>;
}>; // ^This is index 83 in this file

//// [box.d.ts]
export declare class Box<T> {
value: T;
constructor(value: T);
}
export declare function box<T>(value: T): Box<T>;

//// [a.js]
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports._ = void 0;
var boxedBox_1 = require("./boxedBox");
exports._ = boxedBox_1.boxedBox;
// At index 83
/**
* wat
*/


//// [a.d.ts]
export declare const _: import("./box").Box<{
boxed: import("./box").Box<number>;
}>;
/**
* wat
*/
47 changes: 47 additions & 0 deletions tests/baselines/reference/declarationEmitTopLevelNodeFromCrossFile2.symbols
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@@ -0,0 +1,47 @@
//// [tests/cases/compiler/declarationEmitTopLevelNodeFromCrossFile2.ts] ////

=== a.ts ===
import { boxedBox } from "./boxedBox";
>boxedBox : Symbol(boxedBox, Decl(a.ts, 0, 8))

export const _ = boxedBox;
>_ : Symbol(_, Decl(a.ts, 2, 12))
>boxedBox : Symbol(boxedBox, Decl(a.ts, 0, 8))

// At index 83
/**
* wat
*/

=== boxedBox.d.ts ===
export declare const boxedBox: import("./box").Box<{
>boxedBox : Symbol(boxedBox, Decl(boxedBox.d.ts, 0, 20))
>Box : Symbol(Box, Decl(box.d.ts, 0, 0))

boxed: import("./box").Box<number>;
>boxed : Symbol(boxed, Decl(boxedBox.d.ts, 0, 52))
>Box : Symbol(Box, Decl(box.d.ts, 0, 0))

}>; // ^This is index 83 in this file

=== box.d.ts ===
export declare class Box<T> {
>Box : Symbol(Box, Decl(box.d.ts, 0, 0))
>T : Symbol(T, Decl(box.d.ts, 0, 25))

value: T;
>value : Symbol(Box.value, Decl(box.d.ts, 0, 29))
>T : Symbol(T, Decl(box.d.ts, 0, 25))

constructor(value: T);
>value : Symbol(value, Decl(box.d.ts, 2, 16))
>T : Symbol(T, Decl(box.d.ts, 0, 25))
}
export declare function box<T>(value: T): Box<T>;
>box : Symbol(box, Decl(box.d.ts, 3, 1))
>T : Symbol(T, Decl(box.d.ts, 4, 28))
>value : Symbol(value, Decl(box.d.ts, 4, 31))
>T : Symbol(T, Decl(box.d.ts, 4, 28))
>Box : Symbol(Box, Decl(box.d.ts, 0, 0))
>T : Symbol(T, Decl(box.d.ts, 4, 28))

48 changes: 48 additions & 0 deletions tests/baselines/reference/declarationEmitTopLevelNodeFromCrossFile2.types
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Original file line number Diff line number Diff line change
@@ -0,0 +1,48 @@
//// [tests/cases/compiler/declarationEmitTopLevelNodeFromCrossFile2.ts] ////

=== a.ts ===
import { boxedBox } from "./boxedBox";
>boxedBox : import("box").Box<{ boxed: import("box").Box<number>; }>
> : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^

export const _ = boxedBox;
>_ : import("box").Box<{ boxed: import("box").Box<number>; }>
> : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^
>boxedBox : import("box").Box<{ boxed: import("box").Box<number>; }>
> : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^

// At index 83
/**
* wat
*/

=== boxedBox.d.ts ===
export declare const boxedBox: import("./box").Box<{
>boxedBox : import("box").Box<{ boxed: import("./box").Box<number>; }>
> : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^

boxed: import("./box").Box<number>;
>boxed : import("box").Box<number>
> : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

}>; // ^This is index 83 in this file

=== box.d.ts ===
export declare class Box<T> {
>Box : Box<T>
> : ^^^^^^

value: T;
>value : T
> : ^

constructor(value: T);
>value : T
> : ^
}
export declare function box<T>(value: T): Box<T>;
>box : <T>(value: T) => Box<T>
> : ^ ^^ ^^ ^^^^^
>value : T
> : ^

24 changes: 24 additions & 0 deletions tests/cases/compiler/declarationEmitTopLevelNodeFromCrossFile2.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
// @strict: true
// @declaration: true

// @filename: a.ts
import { boxedBox } from "./boxedBox";

export const _ = boxedBox;

// At index 83
/**
* wat
*/

// @filename: boxedBox.d.ts
export declare const boxedBox: import("./box").Box<{
boxed: import("./box").Box<number>;
}>; // ^This is index 83 in this file

// @filename: box.d.ts
export declare class Box<T> {
value: T;
constructor(value: T);
}
export declare function box<T>(value: T): Box<T>;