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Handle prepend in incremental build. Always emit when program uses project reference with prepend since it cant tell changes in js/map files

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This commit is contained in:
Sheetal Nandi 2018-12-21 17:22:17 -08:00
parent 7b290fdbd4
commit 0d9038c30a
1 changed files with 20 additions and 5 deletions
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25
src/compiler/builder.ts
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@ -66,6 +66,10 @@ namespace ts {
* Already seen affected files
*/
seenEmittedFiles: Map<true> | undefined;
/**
* true if program has been emitted
*/
programEmitComplete?: true;
}
function hasSameKeys<T, U>(map1: ReadonlyMap<T> | undefined, map2: ReadonlyMap<U> | undefined): boolean {
@ -352,6 +356,7 @@ namespace ts {
function doneWithAffectedFile(state: BuilderProgramState, affected: SourceFile | Program, isPendingEmit?: boolean) {
if (affected === state.program) {
state.changedFilesSet.clear();
state.programEmitComplete = true;
}
else {
state.seenAffectedFiles!.set((affected as SourceFile).path, true);
@ -487,12 +492,22 @@ namespace ts {
let affected = getNextAffectedFile(state, cancellationToken, computeHash);
let isPendingEmitFile = false;
if (!affected) {
affected = getNextAffectedFilePendingEmit(state);
// Done
if (!affected) {
return undefined;
if (!state.compilerOptions.out && !state.compilerOptions.outFile) {
affected = getNextAffectedFilePendingEmit(state);
if (!affected) {
return undefined;
}
isPendingEmitFile = true;
}
else {
const program = Debug.assertDefined(state.program);
// Check if program uses any prepend project references, if thats the case we cant track of the js files of those, so emit even though there are no changes
if (state.programEmitComplete || !some(program.getProjectReferences(), ref => !!ref.prepend)) {
state.programEmitComplete = true;
return undefined;
}
affected = program;
}
isPendingEmitFile = true;
}
// Mark seen emitted files if there are pending files to be emitted