1/*
2 * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16import type * as ts from 'typescript';
17import * as path from 'node:path';
18import type { TSCCompiledProgram } from './TSCCompiledProgram';
19
20/**
21 * Extracts TSC diagnostics emitted by strict checks.
22 * Function might be time-consuming, as it runs second compilation.
23 * @param sourceFiles AST of the processed files
24 * @param tscDiagnosticsLinter linter initialized with the processed program
25 * @returns problems found by TSC, mapped by `ts.SourceFile.fileName` field
26 */
27export function getTscDiagnostics(
28  tscDiagnosticsLinter: TSCCompiledProgram,
29  sourceFiles: ts.SourceFile[]
30): Map<string, ts.Diagnostic[]> {
31  const strictDiagnostics = new Map<string, ts.Diagnostic[]>();
32  sourceFiles.forEach((file) => {
33    const diagnostics = tscDiagnosticsLinter.getStrictDiagnostics(file.fileName);
34    if (diagnostics.length > 0) {
35      strictDiagnostics.set(path.normalize(file.fileName), diagnostics);
36    }
37  });
38  return strictDiagnostics;
39}
40