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fix(javascript): preserve uncertainty after references escape to calls (#1292)

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* fix(javascript): preserve uncertainty after references escape to calls

* fix(javascript): track iterator root escapes and preserve static captures

* fix(javascript): scope comparison unknowns to their evidence

* fix(javascript): track parameter origins at function body entry

---------

Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>
This commit is contained in:
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2026-10-09 18:53:42 -04:00
committed by GitHub
parent d0e606930a
commit 355a292198
17 changed files with 2574 additions and 220 deletions
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src/domain/javascript/javascriptSemanticState.ts
+19 -1
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@@ -1,5 +1,7 @@
import * as t from "@babel/types";
import type { JavaScriptSemanticPropertyPath } from "./javascriptSemanticPropertyPaths.js";
import type {
JavaScriptModuleOrigin,
JavaScriptSemanticDefinition,
@@ -15,6 +17,16 @@ interface JavaScriptSemanticInitializer {
readonly entryBody?: t.BlockStatement;
}
/** Additional references from destructuring copies and possible defaults. */
interface JavaScriptSemanticReferenceInitializer extends JavaScriptSemanticInitializer {
readonly copyKind?: "object-rest" | "array-rest";
readonly copyProjectionOffset?: number;
readonly copyExcludedKeys?: readonly string[];
readonly copyStartIndex?: number;
readonly fallbackSources?: readonly JavaScriptSemanticInitializer[];
readonly requiredSources?: readonly JavaScriptSemanticInitializer[];
}
/** Mutable binding state used only while constructing the immutable IR. */
export interface JavaScriptSemanticBindingState {
readonly bindingId: string;
@@ -22,9 +34,14 @@ export interface JavaScriptSemanticBindingState {
readonly name: string;
kind: JavaScriptSemanticDefinition["kind"];
mutable: boolean;
readonly mutatedPaths: (readonly (string | number | null)[])[];
readonly mutatedPaths: JavaScriptSemanticPropertyPath[];
readonly escapedPaths: {
readonly path: JavaScriptSemanticPropertyPath;
readonly node: t.Node | undefined;
}[];
readonly definitions: JavaScriptSemanticDefinition[];
readonly initializers: JavaScriptSemanticInitializer[];
readonly referenceInitializers: JavaScriptSemanticReferenceInitializer[];
readonly directOrigins: JavaScriptModuleOrigin[];
}
@@ -40,6 +57,7 @@ export interface JavaScriptSemanticScopeState {
/** Shared state for semantic collection and evaluation. */
export interface JavaScriptSemanticAnalysisState {
readonly parentsByNode: WeakMap<t.Node, t.Node>;
readonly scopes: JavaScriptSemanticScopeState[];
readonly scopesById: Map<string, JavaScriptSemanticScopeState>;
readonly scopeByNode: WeakMap<t.Node, JavaScriptSemanticScopeState>;