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🤖 Pick PR #38984 (Remove non null assertion on oldSou...) into release-3.9 #39480

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🤖 Pick PR #38984 (Remove non null assertion on oldSou...) into release-3.9 #39480

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2 changes: 1 addition & 1 deletion src/compiler/program.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1110,7 +1110,7 @@ namespace ts {
const moduleName = moduleNames[i];
// If the source file is unchanged and doesnt have invalidated resolution, reuse the module resolutions
if (file === oldSourceFile && !hasInvalidatedResolution(oldSourceFile.path)) {
const oldResolvedModule = oldSourceFile && oldSourceFile.resolvedModules!.get(moduleName);
const oldResolvedModule = getResolvedModule(oldSourceFile, moduleName);
if (oldResolvedModule) {
if (isTraceEnabled(options, host)) {
trace(host, Diagnostics.Reusing_resolution_of_module_0_to_file_1_from_old_program, moduleName, containingFile);
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