54 lines
1.9 KiB
TypeScript
54 lines
1.9 KiB
TypeScript
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import { expect, it } from "vitest";
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import * as t from "@babel/types";
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import { createSemanticModuleInterop } from "./javascriptModuleInterop.js";
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import { parseJavaScriptSource } from "./javascriptSourceParser.js";
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import { indexJavaScriptBindingsSteps } from "./javascriptSemanticAnalysis.js";
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import {
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completeSemanticSteps,
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traverseJavaScriptAst,
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} from "./javascriptSemanticTraversal.js";
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const invocationKinds = (source: string) => {
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const parsed = parseJavaScriptSource(source);
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if (parsed === null) throw new Error("invocation fixture did not parse");
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const state = completeSemanticSteps(
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indexJavaScriptBindingsSteps(parsed.program),
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);
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const interop = createSemanticModuleInterop(state);
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const invocations: (ReturnType<typeof interop.intrinsicInvocation> | null)[] =
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[];
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traverseJavaScriptAst(parsed.program, {
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enter: (node) => {
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if (t.isCallExpression(node) || t.isOptionalCallExpression(node))
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invocations.push(interop.intrinsicInvocation(node) ?? null);
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},
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});
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return invocations;
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};
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it.each([
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'const change = Object.defineProperty.call; change(null,Object,"create",{value:customCreate});',
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'const {apply:change} = Object.defineProperty; change(null,[Object,"create",{value:customCreate}]);',
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'const change = Reflect.apply.call; change(null,Object.defineProperty,null,[Object,"create",{value:customCreate}]);',
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])(
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"keeps a bare invocation member alias unknown, not effect-free: %s",
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(source) => {
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expect(invocationKinds(source)).toEqual([
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expect.objectContaining({ kind: "opaque" }),
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]);
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},
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);
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it("keeps a comma-expression intrinsic call unknown when its receiver is erased", () => {
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expect(
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invocationKinds(
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'(0, Object.defineProperty.call)(null, Object, "create", {value: customCreate});',
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),
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).toEqual([
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expect.objectContaining({
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kind: "opaque",
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path: ["intrinsic", "Object", "defineProperty", "call"],
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}),
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]);
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});
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