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test(javascript): consolidate source analysis and export regressions

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morluto
2026-10-08 03:57:54 +08:00
parent c93422a898
commit f517a5a1d7
18 changed files with 354 additions and 853 deletions
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src/domain/javascript/javascriptSemanticAnalysis.member_depth.test.ts
+23 -47
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@@ -1,67 +1,43 @@
import * as t from "@babel/types";
import { expect, it } from "vitest";
import { analyzeJavaScriptSemantics } from "./javascriptSemanticAnalysis.js";
import {
analyzeJavaScriptSemantics,
analyzeParsedJavaScriptSemantics,
} from "./javascriptSemanticAnalysis.js";
import { onlyBinding, origin } from "./javascriptSemanticAnalysis.fixture.js";
import { parseJavaScriptSource } from "./javascriptSourceParser.js";
import { calleeName } from "./javascriptStaticAnalysisHelpers.js";
import { analyzeJavaScriptStaticSource } from "./javascriptStaticAnalysis.js";
import { analyzeParsedJavaScriptStaticSource } from "./javascriptStaticAnalysis.js";
const memberChain = ".next".repeat(12_000);
const ordinaryMemberChain = ".next".repeat(64);
it("retains native addon observations through a deep member initializer", () => {
const analysis = analyzeJavaScriptStaticSource(
`const value = require("./addon.node")${memberChain}.last[""];`,
it("preserves a 12,000-member native import through both analyzers", () => {
const parsed = parseJavaScriptSource(
`const value = require("./addon.node")${memberChain}.last; const ordinary = root.next.last;`,
);
expect(analysis.electron.native_addon_bindings).toEqual([
if (parsed === null) throw new Error("Expected valid JavaScript");
const staticAnalysis = analyzeParsedJavaScriptStaticSource("", parsed);
const ir = analyzeParsedJavaScriptSemantics(parsed);
expect(staticAnalysis.parse_status).toBe("complete");
expect(staticAnalysis.electron.native_addon_bindings).toEqual([
expect.objectContaining({ specifier: "./addon.node", members: ["last"] }),
]);
expect(analysis.parse_error_count).toBe(0);
});
it("keeps a deep non-native initializer outside native addon observations", () => {
const analysis = analyzeJavaScriptStaticSource(
`const value = root${memberChain}.last;`,
);
expect(analysis.electron.native_addon_bindings).toEqual([]);
expect(analysis.parse_status).toBe("complete");
});
it("retains unknown value diagnostics and references after a deep member initializer", () => {
const ir = analyzeJavaScriptSemantics(
`const value = root${memberChain}.last;`,
);
expect(ir.coverage).toEqual({ status: "complete", omittedCount: 0 });
expect(onlyBinding(ir, "value")).toMatchObject({
value: { status: "unknown", reason: "Cannot project last from unknown." },
provenance: { status: "unknown", reason: "Unbound identifier root." },
});
expect(ir.references.map(({ name, role }) => ({ name, role }))).toEqual([
{ name: "root", role: "read" },
]);
});
it.each([
`const value = require("./dependency.js")${memberChain}[""].last;`,
`const dependency = require("./dependency.js"); const value = dependency${memberChain}[""].last;`,
`const value = require("./dependency.js")?.next${memberChain}[""].last;`,
])("preserves the full literal module path (case %#)", (source) => {
const ir = analyzeJavaScriptSemantics(source);
const path = origin(onlyBinding(ir, "value"));
expect(path.specifier).toBe("./dependency.js");
expect(path.specifier).toBe("./addon.node");
expect(path.importedPath).toEqual([
...(source.includes("?.next") ? ["next"] : []),
...Array.from({ length: 12_000 }, () => "next"),
"",
"last",
]);
expect(ir.coverage.status).toBe("complete");
});
it("retains a deep CommonJS re-export path without inventing dynamic module links", () => {
const ir = analyzeJavaScriptSemantics(`
module.exports.result = require("./dependency.js")${memberChain}.last;
const dynamic = require("./other.js")${memberChain}[key].last;
module.exports.result = require("./dependency.js")${ordinaryMemberChain}.last;
const dynamic = require("./other.js")${ordinaryMemberChain}[key].last;
`);
expect(ir.moduleLinks).toEqual([
expect.objectContaining({
@@ -80,7 +56,7 @@ it("retains a deep CommonJS re-export path without inventing dynamic module link
it("invalidates a deep mutation while retaining unrelated literal properties", () => {
const ir = analyzeJavaScriptSemantics(`
const root = { untouched: "retained" };
root${memberChain}.last = 1;
root${ordinaryMemberChain}.last = 1;
const value = root.untouched;
`);
expect(onlyBinding(ir, "root").value).toEqual({
@@ -98,7 +74,7 @@ it("invalidates a deep mutation while retaining unrelated literal properties", (
});
it("retains the complete location and unresolved target of a deep call", () => {
const callee = `root${memberChain}.last`;
const callee = `root${ordinaryMemberChain}.last`;
const ir = analyzeJavaScriptSemantics(`${callee}();`);
expect(ir.callSites).toEqual([
expect.objectContaining({
@@ -115,7 +91,7 @@ it("retains the complete location and unresolved target of a deep call", () => {
it("retains deep default values without confusing their reads with parameter bindings", () => {
const ir = analyzeJavaScriptSemantics(
`export function inspect(value = root${memberChain}.last) { return value; }`,
`export function inspect(value = root${ordinaryMemberChain}.last) { return value; }`,
);
expect(ir.references.map(({ name, role }) => ({ name, role }))).toEqual([
{ name: "root", role: "read" },
@@ -126,7 +102,7 @@ it("retains deep default values without confusing their reads with parameter bin
it("keeps a shadowed require local through a deep member initializer", () => {
const ir = analyzeJavaScriptSemantics(
`function inspect(require) { const value = require("./dependency.js")${memberChain}.last; return value; }`,
`function inspect(require) { const value = require("./dependency.js")${ordinaryMemberChain}.last; return value; }`,
);
expect(ir.moduleLinks).toEqual([]);
expect(onlyBinding(ir, "value").provenance.origins).toEqual([]);
@@ -140,7 +116,7 @@ it.each([
["root[0].last()", "root.0.last"],
["root[key].last()", "root.[computed@5].last"],
["root?.first.last()", "root.first.last"],
[`root${memberChain}.last()`, `root${memberChain}.last`],
[`root${ordinaryMemberChain}.last()`, `root${ordinaryMemberChain}.last`],
])("preserves exact callee syntax (case %#)", (source, expected) => {
const file = parseJavaScriptSource(source);
const statement = file?.program.body[0];