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Perform only emit on js file if no decl file change

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This commit is contained in:
Sheetal Nandi
2019-02-01 14:46:58 -08:00
parent 00917a4649
commit aa5d62a72c
7 changed files with 383 additions and 97 deletions
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53
src/compiler/program.ts
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@@ -1443,30 +1443,16 @@ namespace ts {
return projectReferences;
}
function getPrependNodes(): InputFiles[] {
if (!projectReferences) {
return emptyArray;
}
const nodes: InputFiles[] = [];
for (let i = 0; i < projectReferences.length; i++) {
const ref = projectReferences[i];
const resolvedRefOpts = resolvedProjectReferences![i]!.commandLine;
if (ref.prepend && resolvedRefOpts && resolvedRefOpts.options) {
const out = resolvedRefOpts.options.outFile || resolvedRefOpts.options.out;
// Upstream project didn't have outFile set -- skip (error will have been issued earlier)
if (!out) continue;
const { jsFilePath, sourceMapFilePath, declarationFilePath, declarationMapPath, buildInfoPath } = getOutputPathsForBundle(resolvedRefOpts.options, /*forceDtsPaths*/ true, resolvedRefOpts.projectReferences);
const node = createInputFiles(fileName => {
const path = toPath(fileName);
const sourceFile = getSourceFileByPath(path);
return sourceFile ? sourceFile.text : filesByName.has(path) ? undefined : host.readFile(path);
}, jsFilePath! , sourceMapFilePath, declarationFilePath! , declarationMapPath, buildInfoPath);
nodes.push(node);
function getPrependNodes() {
return createPrependNodes(
projectReferences,
(_ref, index) => resolvedProjectReferences![index]!.commandLine,
fileName => {
const path = toPath(fileName);
const sourceFile = getSourceFileByPath(path);
return sourceFile ? sourceFile.text : filesByName.has(path) ? undefined : host.readFile(path);
}
}
return nodes;
);
}
function isSourceFileFromExternalLibrary(file: SourceFile): boolean {
@@ -1563,7 +1549,7 @@ namespace ts {
const emitResult = emitFiles(
emitResolver,
getEmitHost(writeFileCallback),
sourceFile!, // TODO: GH#18217
sourceFile,
emitOnlyDtsFiles,
transformers,
customTransformers && customTransformers.afterDeclarations
@@ -3141,6 +3127,25 @@ namespace ts {
fileExists(fileName: string): boolean;
}
/* @internal */
export function createPrependNodes(projectReferences: ReadonlyArray<ProjectReference> | undefined, getCommandLine: (ref: ProjectReference, index: number) => ParsedCommandLine | undefined, readFile: (path: string) => string | undefined) {
if (!projectReferences) return emptyArray;
let nodes: InputFiles[] | undefined;
for (let i = 0; i < projectReferences.length; i++) {
const ref = projectReferences[i];
const resolvedRefOpts = getCommandLine(ref, i);
if (ref.prepend && resolvedRefOpts && resolvedRefOpts.options) {
const out = resolvedRefOpts.options.outFile || resolvedRefOpts.options.out;
// Upstream project didn't have outFile set -- skip (error will have been issued earlier)
if (!out) continue;
const { jsFilePath, sourceMapFilePath, declarationFilePath, declarationMapPath, buildInfoPath } = getOutputPathsForBundle(resolvedRefOpts.options, /*forceDtsPaths*/ true, resolvedRefOpts.projectReferences);
const node = createInputFiles(readFile, jsFilePath!, sourceMapFilePath, declarationFilePath!, declarationMapPath, buildInfoPath);
(nodes || (nodes = [])).push(node);
}
}
return nodes || emptyArray;
}
/**
* Returns the target config filename of a project reference.
* Note: The file might not exist.