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Use prologue directive information in buildInfo to emit prologues when manipulating js output bundle file

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This commit is contained in:
Sheetal Nandi 2019-02-04 15:22:23 -08:00
parent a0a4e6b0c2
commit 3593685269
1 changed files with 33 additions and 9 deletions
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42
src/compiler/emitter.ts
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@ -467,6 +467,21 @@ namespace ts {
getNewLine(): string;
}
function createSourceFilesForPrologues(buildInfo: BuildInfo): ReadonlyArray<SourceFile> {
return map(buildInfo.sources.prologues, prologueInfo => {
const sourceFile = createNode(SyntaxKind.SourceFile, 0, prologueInfo.text.length) as SourceFile;
sourceFile.fileName = prologueInfo.file;
sourceFile.text = prologueInfo.text;
sourceFile.statements = createNodeArray(prologueInfo.directives.map(directive => {
const statement = createNode(SyntaxKind.ExpressionStatement, directive.pos, directive.end) as PrologueDirective;
statement.expression = createNode(SyntaxKind.StringLiteral, directive.expression.pos, directive.expression.end) as StringLiteral;
statement.expression.text = directive.expression.text;
return statement;
}));
return sourceFile;
}) || emptyArray;
}
/*@internal*/
export function emitUsingBuildInfo(config: ParsedCommandLine, host: EmitUsingBuildInfoHost, getCommandLine: (ref: ProjectReference) => ParsedCommandLine | undefined): EmitUsingBuildInfoResult {
const { buildInfoPath, jsFilePath, sourceMapFilePath, declarationFilePath, declarationMapPath } = getOutputPathsForBundle(config.options, /*forceDtsPaths*/ false, config.projectReferences);
@ -506,6 +521,7 @@ namespace ts {
let writeByteOrderMarkBuildInfo = false;
const prependNodes = createPrependNodes(config.projectReferences, getCommandLine, f => host.readFile(f));
const jsPrepend = createUnparsedJsSourceFile(ownPrependInput);
const sourceFilesForJsEmit = createSourceFilesForPrologues(buildInfo);
const emitHost: EmitHost = {
getPrependNodes: memoize(() => [...prependNodes, jsPrepend]),
getProjectReferences: () => config.projectReferences,
@ -516,9 +532,9 @@ namespace ts {
getNewLine: () => host.getNewLine(),
getSourceFile: notImplemented,
getSourceFileByPath: notImplemented,
getSourceFiles: () => emptyArray,
getSourceFiles: () => sourceFilesForJsEmit,
getLibFileFromReference: notImplemented,
isSourceFileFromExternalLibrary: notImplemented,
isSourceFileFromExternalLibrary: returnFalse,
writeFile: (name, text, writeByteOrderMark) => {
if (name !== buildInfoPath) {
outputFiles.push({ name, text, writeByteOrderMark });
@ -548,6 +564,7 @@ namespace ts {
if (declarationMapText) {
emitHost.getPrependNodes = memoize(() => [createUnparsedDtsSourceFileWithPrepend(ownPrependInput, prependNodes)]);
emitHost.getCompilerOptions = () => config.options;
emitHost.getSourceFiles = () => emptyArray;
emitHost.writeFile = (name, text, writeByteOrderMark) => {
// Same dts ignore
if (fileExtensionIs(name, Extension.Dts)) return;
@ -736,14 +753,21 @@ namespace ts {
print(EmitHint.SourceFile, sourceFile, sourceFile);
}
if (bundleFileInfo && bundle.sourceFiles.length) {
bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Text });
// Store prologues
const prologues = getPrologueDirectivesFromBundledSourceFiles(bundle);
if (prologues) bundleFileInfo.sources.prologues = prologues;
const end = writer.getTextPos();
if (pos !== end) {
bundleFileInfo.sections.push({ pos, end: writer.getTextPos(), kind: BundleFileSectionKind.Text });
// Store prologues
const prologues = getPrologueDirectivesFromBundledSourceFiles(bundle);
if (prologues) bundleFileInfo.sources.prologues = prologues;
// Store helpes
const helpers = getHelpersFromBundledSourceFiles(bundle);
if (helpers) bundleFileInfo.sources.helpers = helpers;
// Store helpes
const helpers = getHelpersFromBundledSourceFiles(bundle);
if (helpers) bundleFileInfo.sources.helpers = helpers;
}
else {
// Ensure we have text section
Debug.assert(!!bundleFileInfo.sections.length && last(bundleFileInfo.sections).kind === BundleFileSectionKind.Text);
}
}
reset();