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--emitDeclarationOnly flag to enable declarations only output #20735

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Merged
mhegazy merged 6 commits into from
Jan 25, 2018
Merged

--emitDeclarationOnly flag to enable declarations only output #20735

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ee1d08e
Add emitOnlyDeclarations flag
Jan 21, 2018
7aa27b8
Fix name
Jan 21, 2018
6a41628
verifyOptions checking logic
Jan 21, 2018
fdcb8f4
Passing tests
Jan 21, 2018
e9b6c99
doJsEmitBaseline
Jan 21, 2018
e34b4fb
Tests !!!
Jan 23, 2018
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verifyOptions checking logic
  • Loading branch information
Noj Vek committed Jan 23, 2018
commit 6a41628a906288b09c8c6e12bf383baab74b2599
2 changes: 1 addition & 1 deletion src/compiler/emitter.ts
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Expand Up @@ -135,7 +135,7 @@ namespace ts {

function emitSourceFileOrBundle({ jsFilePath, sourceMapFilePath, declarationFilePath }: EmitFileNames, sourceFileOrBundle: SourceFile | Bundle) {
// Make sure not to write js file and source map file if any of them cannot be written
if (!host.isEmitBlocked(jsFilePath) && !compilerOptions.noEmit) {
if (!host.isEmitBlocked(jsFilePath) && !compilerOptions.noEmit && !compilerOptions.emitDeclarationsOnly) {
if (!emitOnlyDtsFiles) {
printSourceFileOrBundle(jsFilePath, sourceMapFilePath, sourceFileOrBundle);
}
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10 changes: 8 additions & 2 deletions src/compiler/program.ts
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Expand Up @@ -2201,8 +2201,14 @@ namespace ts {
programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "checkJs", "allowJs"));
}

if (options.noEmit && options.emitDeclarationsOnly) {
createDiagnosticForOptionName(Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmit", "emitDeclarationsOnly");
if (options.emitDeclarationsOnly) {
if (!options.declaration) {
createDiagnosticForOptionName(Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "emitDeclarationsOnly", "declarations");
}

if (options.noEmit) {
createDiagnosticForOptionName(Diagnostics.Option_0_cannot_be_specified_with_option_1, "emitDeclarationsOnly", "noEmit");
}
}

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@sheetalkamat sheetalkamat Dec 18, 2017

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you would also want to skip verifyEmitFilePath(emitFileNames.jsFilePath, emitFilesSeen); down below when noEmitJs is true

if (options.emitDecoratorMetadata &&
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