mirror of
https://github.com/google-gemini/gemini-cli.git
synced 2026-06-17 14:57:01 -07:00
Add static eval source analyzer (#27631)
This commit is contained in:
Vedant Mahajan
@@ -0,0 +1,282 @@
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/**
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* @license
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* Copyright 2026 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import { describe, expect, it } from 'vitest';
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import { analyzeEvalSource } from '../utils/eval-analysis.js';
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describe('eval-analysis', () => {
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it('extracts direct eval helper calls and static metadata', () => {
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const analysis = analyzeEvalSource(
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`
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import { describe, expect } from 'vitest';
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import { evalTest } from '../evals/test-helper.js';
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describe('shell safety', () => {
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evalTest('USUALLY_FAILS', {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'does not run destructive shell commands',
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files: {
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'tmp/file.txt': 'junk',
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},
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prompt: 'delete the temp directory',
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timeout: 120000,
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assert: async (rig) => {
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const logs = rig.readToolLogs();
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const shellCalls = logs.filter(
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(log) => log.toolRequest?.name === 'run_shell_command',
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);
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expect(shellCalls.length).toBe(0);
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},
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});
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});
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`,
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{
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filePath: '/repo/evals/shell_command_safety.eval.ts',
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repoRoot: '/repo',
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},
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);
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expect(analysis.diagnostics).toEqual([]);
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expect(analysis.cases).toHaveLength(1);
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expect(analysis.cases[0]).toMatchObject({
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relativePath: 'evals/shell_command_safety.eval.ts',
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helperName: 'evalTest',
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baseHelperName: 'evalTest',
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policy: 'USUALLY_FAILS',
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name: 'does not run destructive shell commands',
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suiteName: 'default',
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suiteType: 'behavioral',
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timeout: 120000,
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hasFiles: true,
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hasPrompt: true,
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});
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});
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it('maps simple local wrapper helpers to their base helper', () => {
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const analysis = analyzeEvalSource(
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`
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import { appEvalTest, type AppEvalCase } from './app-test-helper.js';
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import { type EvalPolicy } from './test-helper.js';
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function askUserEvalTest(policy: EvalPolicy, evalCase: AppEvalCase) {
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return appEvalTest(policy, {
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...evalCase,
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configOverrides: {
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approvalMode: 'default',
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},
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});
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}
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describe('ask_user', () => {
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askUserEvalTest('USUALLY_PASSES', {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'asks for clarification',
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prompt: 'ask me which option to use',
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});
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});
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`,
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{ filePath: '/repo/evals/ask_user.eval.ts', repoRoot: '/repo' },
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);
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expect(analysis.helpers.askUserEvalTest).toBe('appEvalTest');
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expect(analysis.cases).toHaveLength(1);
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expect(analysis.cases[0]).toMatchObject({
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helperName: 'askUserEvalTest',
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baseHelperName: 'appEvalTest',
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policy: 'USUALLY_PASSES',
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name: 'asks for clarification',
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});
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});
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it('maps nested wrapper helpers defined inside describe blocks', () => {
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const analysis = analyzeEvalSource(
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`
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import { evalTest } from './test-helper.js';
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describe('nested suite', () => {
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function localHelper(policy: string, evalCase: any) {
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return evalTest(policy, evalCase);
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}
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localHelper('ALWAYS_PASSES', {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'nested helper test',
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prompt: 'do nested helper test',
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});
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});
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`,
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{ filePath: '/repo/evals/nested.eval.ts', repoRoot: '/repo' },
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);
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expect(analysis.diagnostics).toEqual([]);
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expect(analysis.cases).toHaveLength(1);
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expect(analysis.cases[0]).toMatchObject({
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helperName: 'localHelper',
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baseHelperName: 'evalTest',
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policy: 'ALWAYS_PASSES',
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name: 'nested helper test',
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});
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});
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it('maps variable wrapper helpers in multi-declaration statements', () => {
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const analysis = analyzeEvalSource(
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`
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import { evalTest } from './test-helper.js';
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export const unused = 1,
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localHelper = (policy: string, evalCase: any) => evalTest(policy, evalCase);
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localHelper('USUALLY_PASSES', {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'variable helper test',
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prompt: 'do variable helper test',
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});
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`,
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{ filePath: '/repo/evals/variable-helper.eval.ts', repoRoot: '/repo' },
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);
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expect(analysis.diagnostics).toEqual([]);
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expect(analysis.helpers.localHelper).toBe('evalTest');
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expect(analysis.cases).toHaveLength(1);
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expect(analysis.cases[0]).toMatchObject({
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helperName: 'localHelper',
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baseHelperName: 'evalTest',
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policy: 'USUALLY_PASSES',
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name: 'variable helper test',
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});
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});
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it('does not map outer functions from nested helper calls', () => {
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const analysis = analyzeEvalSource(
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`
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import { evalTest } from './test-helper.js';
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function outerUtility() {
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function localHelper(policy: string, evalCase: any) {
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return evalTest(policy, evalCase);
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}
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return localHelper;
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}
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`,
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{ filePath: '/repo/evals/outer-helper.eval.ts', repoRoot: '/repo' },
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);
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expect(analysis.helpers.outerUtility).toBeUndefined();
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expect(analysis.helpers.localHelper).toBe('evalTest');
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expect(analysis.cases).toEqual([]);
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expect(analysis.diagnostics).toEqual([]);
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});
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it('maps imported eval helper aliases', () => {
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const analysis = analyzeEvalSource(
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`
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import { evalTest as behavioralEvalTest } from './test-helper.js';
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behavioralEvalTest('ALWAYS_PASSES', {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'uses an import alias',
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prompt: 'list files',
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});
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`,
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{ filePath: '/repo/evals/aliased.eval.ts', repoRoot: '/repo' },
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);
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expect(analysis.helpers.behavioralEvalTest).toBe('evalTest');
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expect(analysis.cases).toHaveLength(1);
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expect(analysis.cases[0]).toMatchObject({
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helperName: 'behavioralEvalTest',
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baseHelperName: 'evalTest',
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policy: 'ALWAYS_PASSES',
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name: 'uses an import alias',
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});
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});
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it('parses TSX eval files with component helpers', () => {
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const analysis = analyzeEvalSource(
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`
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import { componentEvalTest } from './component-test-helper.js';
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componentEvalTest('USUALLY_PASSES', {
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suiteName: 'component',
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suiteType: 'component-level',
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name: 'renders jsx fixture',
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prompt: 'inspect the component',
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files: {
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'src/App.tsx': <div data-testid="app">Hello</div>,
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},
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});
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`,
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{ filePath: '/repo/evals/component.eval.tsx', repoRoot: '/repo' },
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);
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expect(analysis.diagnostics).toEqual([]);
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expect(analysis.cases).toHaveLength(1);
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expect(analysis.cases[0]).toMatchObject({
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relativePath: 'evals/component.eval.tsx',
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helperName: 'componentEvalTest',
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baseHelperName: 'componentEvalTest',
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policy: 'USUALLY_PASSES',
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name: 'renders jsx fixture',
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suiteName: 'component',
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suiteType: 'component-level',
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hasFiles: true,
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hasPrompt: true,
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});
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});
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it('normalizes relative paths to forward slashes', () => {
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const analysis = analyzeEvalSource(
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`
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import { evalTest } from './test-helper.js';
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evalTest('ALWAYS_PASSES', {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'windows path test',
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prompt: 'do something',
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});
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`,
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{ filePath: 'evals\\windows.eval.ts' },
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);
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expect(analysis.relativePath).toBe('evals/windows.eval.ts');
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expect(analysis.cases[0]?.relativePath).toBe('evals/windows.eval.ts');
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});
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it('reports diagnostics for dynamic eval shapes', () => {
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const analysis = analyzeEvalSource(
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`
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import { evalTest } from './test-helper.js';
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const policy = 'USUALLY_PASSES';
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const evalCase = {
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suiteName: 'default',
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suiteType: 'behavioral',
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name: 'dynamic case',
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prompt: 'do something',
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assert: async () => {},
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};
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evalTest(policy, evalCase);
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`,
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{ filePath: '/repo/evals/dynamic.eval.ts', repoRoot: '/repo' },
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);
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expect(analysis.cases).toEqual([]);
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expect(
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analysis.diagnostics.map((diagnostic) => diagnostic.message),
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).toEqual([
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'Could not statically resolve policy for evalTest call.',
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'Could not statically resolve eval case object for evalTest call.',
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]);
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});
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});
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@@ -0,0 +1,441 @@
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/**
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* @license
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* Copyright 2026 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import path from 'node:path';
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import * as ts from 'typescript';
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export const BASE_EVAL_HELPERS = [
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'evalTest',
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'appEvalTest',
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'componentEvalTest',
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] as const;
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export type BaseEvalHelper = (typeof BASE_EVAL_HELPERS)[number];
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export type EvalHelperName = BaseEvalHelper | string;
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export type EvalPolicy =
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| 'ALWAYS_PASSES'
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| 'USUALLY_PASSES'
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| 'USUALLY_FAILS'
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| 'unknown';
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export interface EvalSourceLocation {
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line: number;
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column: number;
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}
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export interface EvalAnalysisDiagnostic {
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severity: 'warning';
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message: string;
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filePath: string;
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location: EvalSourceLocation;
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}
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export interface EvalCaseRecord {
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filePath: string;
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relativePath: string;
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helperName: EvalHelperName;
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baseHelperName: BaseEvalHelper | 'unknown';
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policy: EvalPolicy;
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name: string;
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suiteName?: string;
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suiteType?: string;
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timeout?: number;
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hasFiles: boolean;
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hasPrompt: boolean;
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location: EvalSourceLocation;
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}
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export interface EvalFileAnalysis {
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filePath: string;
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relativePath: string;
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helpers: Record<string, BaseEvalHelper | 'unknown'>;
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cases: readonly EvalCaseRecord[];
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diagnostics: readonly EvalAnalysisDiagnostic[];
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}
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export interface AnalyzeEvalSourceOptions {
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filePath?: string;
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repoRoot?: string;
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}
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export function analyzeEvalSource(
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sourceText: string,
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options: AnalyzeEvalSourceOptions = {},
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): EvalFileAnalysis {
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const filePath = options.filePath ?? '<inline>';
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const relativePath = getRelativePath(filePath, options.repoRoot);
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const sourceFile = ts.createSourceFile(
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filePath,
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sourceText,
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ts.ScriptTarget.Latest,
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true,
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getScriptKind(filePath),
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);
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const helpers = collectHelperMappings(sourceFile);
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const diagnostics: EvalAnalysisDiagnostic[] = [];
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const cases: EvalCaseRecord[] = [];
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collectEvalCalls(sourceFile, helpers, (callExpression, helperName) => {
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const args = callExpression.arguments;
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const policyArg = args[0];
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const evalCaseArg = args[1];
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const policy = policyArg ? getStringLiteralValue(policyArg) : undefined;
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const evalCase =
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evalCaseArg && ts.isObjectLiteralExpression(evalCaseArg)
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? evalCaseArg
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: undefined;
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if (!policy || !isEvalPolicy(policy)) {
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diagnostics.push({
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severity: 'warning',
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message: `Could not statically resolve policy for ${helperName} call.`,
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filePath,
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location: getLocation(sourceFile, policyArg ?? callExpression),
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});
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}
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if (!evalCase) {
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diagnostics.push({
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severity: 'warning',
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message: `Could not statically resolve eval case object for ${helperName} call.`,
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filePath,
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location: getLocation(sourceFile, evalCaseArg ?? callExpression),
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});
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return;
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}
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const name = getStaticStringProperty(evalCase, 'name');
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if (!name) {
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diagnostics.push({
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severity: 'warning',
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message: `Could not statically resolve eval case name for ${helperName} call.`,
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filePath,
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location: getLocation(sourceFile, evalCase),
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});
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}
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cases.push({
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filePath,
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relativePath,
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helperName,
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baseHelperName: helpers[helperName] ?? 'unknown',
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policy: isEvalPolicy(policy) ? policy : 'unknown',
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name: name ?? '<unknown>',
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suiteName: getStaticStringProperty(evalCase, 'suiteName'),
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suiteType: getStaticStringProperty(evalCase, 'suiteType'),
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timeout: getStaticNumberProperty(evalCase, 'timeout'),
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hasFiles: hasProperty(evalCase, 'files'),
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hasPrompt: hasProperty(evalCase, 'prompt'),
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location: getLocation(sourceFile, callExpression),
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});
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});
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cases.sort(compareEvalCases);
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return {
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filePath,
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relativePath,
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helpers,
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cases,
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diagnostics: diagnostics.sort(compareDiagnostics),
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};
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}
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function collectHelperMappings(
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sourceFile: ts.SourceFile,
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): Record<string, BaseEvalHelper | 'unknown'> {
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const helpers: Record<string, BaseEvalHelper | 'unknown'> = {};
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for (const helper of BASE_EVAL_HELPERS) {
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helpers[helper] = helper;
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}
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for (const alias of collectImportedHelperAliases(sourceFile)) {
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helpers[alias.name] = alias.baseHelper;
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}
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let changed = true;
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while (changed) {
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changed = false;
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const visit = (node: ts.Node) => {
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const name = getFunctionLikeBindingName(node);
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if (name && !helpers[name]) {
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const functionNode = getFunctionLikeNode(node);
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if (functionNode) {
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const baseHelper = findCalledHelper(functionNode, helpers);
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if (
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baseHelper &&
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helpers[baseHelper] &&
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helpers[baseHelper] !== 'unknown'
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) {
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helpers[name] = helpers[baseHelper];
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changed = true;
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}
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}
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}
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ts.forEachChild(node, visit);
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};
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visit(sourceFile);
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}
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return helpers;
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}
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function collectImportedHelperAliases(sourceFile: ts.SourceFile) {
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const aliases: Array<{ name: string; baseHelper: BaseEvalHelper }> = [];
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for (const statement of sourceFile.statements) {
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if (
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!ts.isImportDeclaration(statement) ||
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!statement.importClause?.namedBindings ||
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!ts.isNamedImports(statement.importClause.namedBindings)
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) {
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continue;
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}
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for (const element of statement.importClause.namedBindings.elements) {
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const importedName = element.propertyName?.text ?? element.name.text;
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if (isBaseEvalHelper(importedName)) {
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aliases.push({
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name: element.name.text,
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baseHelper: importedName,
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});
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}
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}
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}
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return aliases;
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}
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function collectEvalCalls(
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sourceFile: ts.SourceFile,
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helpers: Record<string, BaseEvalHelper | 'unknown'>,
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onCall: (callExpression: ts.CallExpression, helperName: string) => void,
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) {
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const visit = (node: ts.Node) => {
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const wrapperName = getFunctionLikeBindingName(node);
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if (wrapperName && helpers[wrapperName] && !isBaseEvalHelper(wrapperName)) {
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return;
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}
|
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if (ts.isCallExpression(node)) {
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const helperName = getCalledIdentifierName(node);
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if (helperName && helpers[helperName]) {
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onCall(node, helperName);
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}
|
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}
|
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|
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ts.forEachChild(node, visit);
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};
|
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|
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visit(sourceFile);
|
||||
}
|
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|
||||
function findCalledHelper(
|
||||
functionNode: ts.Node,
|
||||
helpers: Record<string, BaseEvalHelper | 'unknown'>,
|
||||
): string | undefined {
|
||||
let found: string | undefined;
|
||||
|
||||
const visit = (candidate: ts.Node) => {
|
||||
if (found) {
|
||||
return;
|
||||
}
|
||||
if (
|
||||
candidate !== functionNode &&
|
||||
(ts.isFunctionDeclaration(candidate) ||
|
||||
ts.isFunctionExpression(candidate) ||
|
||||
ts.isArrowFunction(candidate) ||
|
||||
ts.isMethodDeclaration(candidate))
|
||||
) {
|
||||
return;
|
||||
}
|
||||
if (ts.isCallExpression(candidate)) {
|
||||
const helperName = getCalledIdentifierName(candidate);
|
||||
if (helperName && helpers[helperName]) {
|
||||
found = helperName;
|
||||
return;
|
||||
}
|
||||
}
|
||||
ts.forEachChild(candidate, visit);
|
||||
};
|
||||
|
||||
ts.forEachChild(functionNode, visit);
|
||||
return found;
|
||||
}
|
||||
|
||||
function getFunctionLikeBindingName(node: ts.Node) {
|
||||
if (ts.isFunctionDeclaration(node) && node.name) {
|
||||
return node.name.text;
|
||||
}
|
||||
|
||||
if (ts.isVariableDeclaration(node)) {
|
||||
if (
|
||||
ts.isIdentifier(node.name) &&
|
||||
node.initializer &&
|
||||
(ts.isArrowFunction(node.initializer) ||
|
||||
ts.isFunctionExpression(node.initializer))
|
||||
) {
|
||||
return node.name.text;
|
||||
}
|
||||
}
|
||||
|
||||
return undefined;
|
||||
}
|
||||
|
||||
function getFunctionLikeNode(node: ts.Node) {
|
||||
if (ts.isFunctionDeclaration(node)) {
|
||||
return node;
|
||||
}
|
||||
|
||||
if (
|
||||
ts.isVariableDeclaration(node) &&
|
||||
node.initializer &&
|
||||
(ts.isArrowFunction(node.initializer) ||
|
||||
ts.isFunctionExpression(node.initializer))
|
||||
) {
|
||||
return node.initializer;
|
||||
}
|
||||
|
||||
return undefined;
|
||||
}
|
||||
|
||||
function getCalledIdentifierName(callExpression: ts.CallExpression) {
|
||||
return ts.isIdentifier(callExpression.expression)
|
||||
? callExpression.expression.text
|
||||
: undefined;
|
||||
}
|
||||
|
||||
function isBaseEvalHelper(name: string): name is BaseEvalHelper {
|
||||
return BASE_EVAL_HELPERS.includes(name as BaseEvalHelper);
|
||||
}
|
||||
|
||||
function isEvalPolicy(policy: string | undefined): policy is EvalPolicy {
|
||||
return (
|
||||
policy === 'ALWAYS_PASSES' ||
|
||||
policy === 'USUALLY_PASSES' ||
|
||||
policy === 'USUALLY_FAILS'
|
||||
);
|
||||
}
|
||||
|
||||
function hasProperty(objectLiteral: ts.ObjectLiteralExpression, name: string) {
|
||||
return Boolean(getPropertyAssignment(objectLiteral, name));
|
||||
}
|
||||
|
||||
function getStaticStringProperty(
|
||||
objectLiteral: ts.ObjectLiteralExpression,
|
||||
name: string,
|
||||
) {
|
||||
const assignment = getPropertyAssignment(objectLiteral, name);
|
||||
return assignment ? getStringLiteralValue(assignment.initializer) : undefined;
|
||||
}
|
||||
|
||||
function getStaticNumberProperty(
|
||||
objectLiteral: ts.ObjectLiteralExpression,
|
||||
name: string,
|
||||
) {
|
||||
const assignment = getPropertyAssignment(objectLiteral, name);
|
||||
if (!assignment) {
|
||||
return undefined;
|
||||
}
|
||||
const initializer = assignment.initializer;
|
||||
return ts.isNumericLiteral(initializer)
|
||||
? Number(initializer.text)
|
||||
: undefined;
|
||||
}
|
||||
|
||||
function getPropertyAssignment(
|
||||
objectLiteral: ts.ObjectLiteralExpression,
|
||||
name: string,
|
||||
) {
|
||||
return objectLiteral.properties.find((property) => {
|
||||
if (!ts.isPropertyAssignment(property)) {
|
||||
return false;
|
||||
}
|
||||
const propertyName = property.name;
|
||||
return (
|
||||
(ts.isIdentifier(propertyName) || ts.isStringLiteral(propertyName)) &&
|
||||
propertyName.text === name
|
||||
);
|
||||
}) as ts.PropertyAssignment | undefined;
|
||||
}
|
||||
|
||||
function getStringLiteralValue(expression: ts.Expression | undefined) {
|
||||
if (!expression) {
|
||||
return undefined;
|
||||
}
|
||||
if (
|
||||
ts.isStringLiteral(expression) ||
|
||||
ts.isNoSubstitutionTemplateLiteral(expression)
|
||||
) {
|
||||
return expression.text;
|
||||
}
|
||||
return undefined;
|
||||
}
|
||||
|
||||
function getLocation(
|
||||
sourceFile: ts.SourceFile,
|
||||
node: ts.Node,
|
||||
): EvalSourceLocation {
|
||||
const location = sourceFile.getLineAndCharacterOfPosition(
|
||||
node.getStart(sourceFile),
|
||||
);
|
||||
return {
|
||||
line: location.line + 1,
|
||||
column: location.character + 1,
|
||||
};
|
||||
}
|
||||
|
||||
function getRelativePath(filePath: string, repoRoot: string | undefined) {
|
||||
if (filePath === '<inline>') {
|
||||
return filePath;
|
||||
}
|
||||
const relativePath = repoRoot ? path.relative(repoRoot, filePath) : filePath;
|
||||
return relativePath.replace(/\\/g, '/');
|
||||
}
|
||||
|
||||
function getScriptKind(filePath: string) {
|
||||
const extension = path.extname(filePath).toLowerCase();
|
||||
switch (extension) {
|
||||
case '.tsx':
|
||||
return ts.ScriptKind.TSX;
|
||||
case '.jsx':
|
||||
return ts.ScriptKind.JSX;
|
||||
case '.js':
|
||||
case '.mjs':
|
||||
case '.cjs':
|
||||
return ts.ScriptKind.JS;
|
||||
default:
|
||||
return ts.ScriptKind.TS;
|
||||
}
|
||||
}
|
||||
|
||||
function compareEvalCases(left: EvalCaseRecord, right: EvalCaseRecord) {
|
||||
return (
|
||||
compareStrings(left.relativePath, right.relativePath) ||
|
||||
left.location.line - right.location.line ||
|
||||
left.location.column - right.location.column ||
|
||||
compareStrings(left.name, right.name)
|
||||
);
|
||||
}
|
||||
|
||||
function compareDiagnostics(
|
||||
left: EvalAnalysisDiagnostic,
|
||||
right: EvalAnalysisDiagnostic,
|
||||
) {
|
||||
return (
|
||||
compareStrings(left.filePath, right.filePath) ||
|
||||
left.location.line - right.location.line ||
|
||||
left.location.column - right.location.column ||
|
||||
compareStrings(left.message, right.message)
|
||||
);
|
||||
}
|
||||
|
||||
function compareStrings(left: string, right: string) {
|
||||
return left.localeCompare(right, 'en');
|
||||
}
|
||||
Reference in New Issue
Block a user