Inconsistent error messages caused by different tsconfig.json

[Roise-yue]

🔎 Search Terms

"inconsistent error massage", "tsconfig"

🕗 Version & Regression Information

• This is the behavior in every version I tried (from v5.4 to v5.7)

⏯ Playground Link

No response

💻 Code

import generate from "@babel/generator" ; 
import * as t from "@babel/types" ; 
import * as t from "@babel/types" ; 
const code = "class Example {}" ; 
declare const ast : t . Node ; 
ast . type ; 
null const output = generate ( ast , { } , code ) ; 
const result = generate ( ast , { retainLines : false , compact : "auto" , concise : false , jsescOption : { quotes : "double" , } , jsonCompatibleStrings : true , } , code , ) ; 
result . code ; 
result . map ; 

🙁 Actual behavior

The TS code above should have two kinds of syntax errors :

Duplicate identifier 't'.(line 2-3)
';' expected.(line 7)

I compiled this code separately using version 5.7 of tsc(The same applies to other versions as well) and found that when I used the "tsc file. ts" command, the first error was not reported. At this point, I used tsc -- showConfig and found that the default configuration file was being used, with the following configuration:

{
    "compilerOptions": {
        "target": "esnext",
        "module": "esnext",
        "moduleResolution": "classic",
        "forceConsistentCasingInFileNames": true,
        "lib": [
            "es2023",
            "dom"
        ],
        "noEmitOnError": true,
        "strict": true,
        "jsx": "react",
        "declaration": true,
        "esModuleInterop": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "strictBindCallApply": true,
        "strictPropertyInitialization": true,
        "noImplicitThis": true,
        "alwaysStrict": true,
        "noImplicitReturns": true,
        "isolatedModules": true,
        "allowSyntheticDefaultImports": true,
        "preserveConstEnums": true,
        "useDefineForClassFields": true,
        "strictBuiltinIteratorReturn": true,
        "useUnknownInCatchVariables": true
    },
    "files": [
        "./1.ts"
    ],
    "include": [
        "1.ts"
    ],
    "exclude": [
        "node_modules"
    ]
}

However, in fact, the tsconfig.json I configured in the root directory is as follows:

{
  "compilerOptions": {
    "target": "ESNext",
    "module": "esnext",
    "moduleResolution": "node",
    "forceConsistentCasingInFileNames": true,
    "lib": ["es2023","dom"],
    "noEmitOnError":true,
    "strict":true,
    "jsx": "react",
    "declaration": true,
    "esModuleInterop": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "noImplicitReturns": true,
    "isolatedModules": true
  },
  "include": [
    "1.ts"
  ],
  "exclude": [
    "node_modules"
  ]
}

When I add "include:" file. ts "to tsconfig. json and use the tsc -- project tsconfig. json command to execute file. ts, TSC can report all syntax errors completely.
I have tried to modify the compilation options in the configuration file (for example, strict, moduleresolution), but I found that no matter how you modify the compilation options, the results are the same: use playground and TSC -- project tsconfig JSON can get complete error information by executing the code in these two ways, while the command using tsc+filename will not report the syntax error of "duplicate identifier".

I wonder if this inconsistency is due to the way I execute the program. However, I personally believe that the report of syntax errors should not be related to this.

🙂 Expected behavior

The error message of TSC should be consistent using different execution methods.

Additional information about the issue

No response

[MartinJohns]

when I used the "tsc file. ts" command, the first error was not reported. At this point, I used tsc -- showConfig and found that the default configuration file was being used, with the following configuration:

This is working as intended and documented. When you provide a list of filenames to compile, then your local tsconfig is not used.

See https://www.typescriptlang.org/docs/handbook/compiler-options.html:

When input files are specified on the command line, tsconfig.json files are ignored.

[typescript-bot]

This issue has been marked as "Working as Intended" and has seen no recent activity. It has been automatically closed for house-keeping purposes.