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Merge branch 'master' into prependWithBundleInfo

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This commit is contained in:
Sheetal Nandi
2019-01-30 13:23:07 -08:00
parent 0d9cf96e74 26e546aeaa
commit 315a4dd226
6 changed files with 129 additions and 66 deletions
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6
src/compiler/program.ts
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@@ -230,18 +230,18 @@ namespace ts {
const readFileWithCache = (fileName: string): string | undefined => {
const key = toPath(fileName);
const value = readFileCache.get(key);
if (value !== undefined) return value || undefined;
if (value !== undefined) return value !== false ? value : undefined;
return setReadFileCache(key, fileName);
};
const setReadFileCache = (key: Path, fileName: string) => {
const newValue = originalReadFile.call(host, fileName);
readFileCache.set(key, newValue || false);
readFileCache.set(key, newValue !== undefined ? newValue : false);
return newValue;
};
host.readFile = fileName => {
const key = toPath(fileName);
const value = readFileCache.get(key);
if (value !== undefined) return value; // could be .d.ts from output
if (value !== undefined) return value !== false ? value : undefined; // could be .d.ts from output
if (!fileExtensionIs(fileName, Extension.Json)) {
return originalReadFile.call(host, fileName);
}