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Reorganize related functions

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vilicvane
2016-02-11 16:38:21 +08:00
parent 0282c0463d
commit a481305292
1 changed files with 32 additions and 24 deletions
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56
src/compiler/program.ts
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@@ -615,42 +615,50 @@ namespace ts {
}
}
const outputFingerprints: Map<OutputFingerprint> =
options.watch && sys.createHash && sys.getModifiedTime ? {} : undefined;
let outputFingerprints: Map<OutputFingerprint>;
const fileWriter: typeof sys.writeFile = outputFingerprints ?
(fileName, data, writeByteOrderMark) => {
const hash = sys.createHash(data);
const mtimeBefore = sys.getModifiedTime(fileName);
function writeFileIfUpdated(fileName: string, data: string, writeByteOrderMark: boolean): void {
if (!outputFingerprints) {
outputFingerprints = {};
}
if (mtimeBefore && hasProperty(outputFingerprints, fileName)) {
const fingerprint = outputFingerprints[fileName];
const hash = sys.createHash(data);
const mtimeBefore = sys.getModifiedTime(fileName);
// If output has not been changed, and the file has no external modification
if (fingerprint.byteOrderMark === writeByteOrderMark &&
fingerprint.hash === hash &&
fingerprint.mtime.getTime() === mtimeBefore.getTime()) {
return;
}
if (mtimeBefore && hasProperty(outputFingerprints, fileName)) {
const fingerprint = outputFingerprints[fileName];
// If output has not been changed, and the file has no external modification
if (fingerprint.byteOrderMark === writeByteOrderMark &&
fingerprint.hash === hash &&
fingerprint.mtime.getTime() === mtimeBefore.getTime()) {
return;
}
}
sys.writeFile(fileName, data, writeByteOrderMark);
sys.writeFile(fileName, data, writeByteOrderMark);
const mtimeAfter = sys.getModifiedTime(fileName);
const mtimeAfter = sys.getModifiedTime(fileName);
outputFingerprints[fileName] = {
hash,
byteOrderMark: writeByteOrderMark,
mtime: mtimeAfter
};
} :
(fileName, data, writeByteOrderMark) => sys.writeFile(fileName, data, writeByteOrderMark);
outputFingerprints[fileName] = {
hash,
byteOrderMark: writeByteOrderMark,
mtime: mtimeAfter
};
}
function writeFile(fileName: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void) {
try {
const start = new Date().getTime();
ensureDirectoriesExist(getDirectoryPath(normalizePath(fileName)));
fileWriter(fileName, data, writeByteOrderMark);
if (options.watch && sys.createHash && sys.getModifiedTime) {
writeFileIfUpdated(fileName, data, writeByteOrderMark);
}
else {
sys.writeFile(fileName, data, writeByteOrderMark);
}
ioWriteTime += new Date().getTime() - start;
}
catch (e) {