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importsNotUsedAsValue affects semantic diagnostics (#36001)

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* importsNotUsedAsValue affects semantic diagnostics

* add tests
This commit is contained in:
Klaus Meinhardt
2020-01-16 00:08:17 +01:00
committed by Sheetal Nandi
parent 81a942e7b9
commit f220e62ce7
3 changed files with 279 additions and 0 deletions
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1
src/compiler/commandLineParser.ts
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@@ -480,6 +480,7 @@ namespace ts {
error: importsNotUsedAsValues.Error
}),
affectsEmit: true,
affectsSemanticDiagnostics: true,
category: Diagnostics.Advanced_Options,
description: Diagnostics.Specify_emit_Slashchecking_behavior_for_imports_that_are_only_used_for_types
},

39
src/testRunner/unittests/tscWatch/programUpdates.ts
View File

@@ -1121,6 +1121,45 @@ foo().hello`
]
});
verifyTscWatch({
scenario,
subScenario: "updates errors and emit when importsNotUsedAsValues changes",
commandLineArgs: ["-w"],
sys: () => {
const aFile: File = {
path: `${projectRoot}/a.ts`,
content: `export class C {}`
};
const bFile: File = {
path: `${projectRoot}/b.ts`,
content: `import {C} from './a';
export function f(p: C) { return p; }`
};
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: JSON.stringify({ compilerOptions: {} })
};
return createWatchedSystem([aFile, bFile, config, libFile], { currentDirectory: projectRoot });
},
changes: [
sys => {
sys.writeFile(`${projectRoot}/tsconfig.json`, JSON.stringify({ compilerOptions: { importsNotUsedAsValues: "remove" } }));
sys.runQueuedTimeoutCallbacks();
return 'Set to "remove"';
},
sys => {
sys.writeFile(`${projectRoot}/tsconfig.json`, JSON.stringify({ compilerOptions: { importsNotUsedAsValues: "error" } }));
sys.runQueuedTimeoutCallbacks();
return 'Set to "error"';
},
sys => {
sys.writeFile(`${projectRoot}/tsconfig.json`, JSON.stringify({ compilerOptions: { importsNotUsedAsValues: "preserve" } }));
sys.runQueuedTimeoutCallbacks();
return 'Set to "preserve"';
},
]
});
verifyTscWatch({
scenario,
subScenario: "updates errors when ambient modules of program changes",