fix(javascript): preserve builtin identity and share alias traversal

Track module writes and escapes at their owner, preserve capture and reassignment ordering, and share CommonJS/default namespace identity without erasing parent-slot changes. Carry write sites into ambient alias resolution and use parsed write targets across consumers. Deduplicate returned-reference work with cycle context; retain unchanged temporal selection identity so provenance memoization stays effective.

Reviewed fixes include #2041, #2465, #2830, #2881, and #2948. Remove superseded mutation representations and the ineffective per-markValue dedup layer.

Validation: 380 focused JavaScript tests passed under a 384 MiB heap cap, including the previously aborting 30-level/128-call alias regression. Six public CLI/MCP builtin tests passed. Exact pdf.js completed-workflow performance remains unmeasured.
This commit is contained in:
morluto
2026-10-14 08:44:52 +08:00
parent 0f4c484be5
commit 04672f2b91
34 changed files with 3778 additions and 321 deletions
@@ -0,0 +1,54 @@
import { expect, it } from "vitest";
import * as t from "@babel/types";
import { createSemanticModuleInterop } from "./javascriptModuleInterop.js";
import { parseJavaScriptSource } from "./javascriptSourceParser.js";
import { indexJavaScriptBindingsSteps } from "./javascriptSemanticAnalysis.js";
import {
completeSemanticSteps,
traverseJavaScriptAst,
} from "./javascriptSemanticTraversal.js";
const invocationKinds = (source: string) => {
const parsed = parseJavaScriptSource(source);
if (parsed === null) throw new Error("invocation fixture did not parse");
const state = completeSemanticSteps(
indexJavaScriptBindingsSteps(parsed.program),
);
const interop = createSemanticModuleInterop(state);
const invocations: (ReturnType<typeof interop.intrinsicInvocation> | null)[] =
[];
traverseJavaScriptAst(parsed.program, {
enter: (node) => {
if (t.isCallExpression(node) || t.isOptionalCallExpression(node))
invocations.push(interop.intrinsicInvocation(node) ?? null);
},
});
return invocations;
};
it.each([
'const change = Object.defineProperty.call; change(null,Object,"create",{value:customCreate});',
'const {apply:change} = Object.defineProperty; change(null,[Object,"create",{value:customCreate}]);',
'const change = Reflect.apply.call; change(null,Object.defineProperty,null,[Object,"create",{value:customCreate}]);',
])(
"keeps a bare invocation member alias unknown, not effect-free: %s",
(source) => {
expect(invocationKinds(source)).toEqual([
expect.objectContaining({ kind: "opaque" }),
]);
},
);
it("keeps a comma-expression intrinsic call unknown when its receiver is erased", () => {
expect(
invocationKinds(
'(0, Object.defineProperty.call)(null, Object, "create", {value: customCreate});',
),
).toEqual([
expect.objectContaining({
kind: "opaque",
path: ["intrinsic", "Object", "defineProperty", "call"],
}),
]);
});