@Nullable
private ScriptDescriptor doAnalyze(
@NotNull JetFile psiFile, @NotNull MessageCollector messageCollector) {
WritableScope scope =
new WritableScopeImpl(
JetScope.EMPTY,
module,
new TraceBasedRedeclarationHandler(trace),
"Root scope in analyzePackage");
scope.changeLockLevel(WritableScope.LockLevel.BOTH);
// Import a scope that contains all top-level packages that come from dependencies
// This makes the packages visible at all, does not import themselves
scope.importScope(module.getPackage(FqName.ROOT).getMemberScope());
if (lastLineScope != null) {
scope.importScope(lastLineScope);
}
scope.changeLockLevel(WritableScope.LockLevel.READING);
// dummy builder is used because "root" is module descriptor,
// packages added to module explicitly in
injector
.getTopDownAnalyzer()
.doProcess(
topDownAnalysisContext,
scope,
new PackageLikeBuilderDummy(),
Collections.singletonList(psiFile));
boolean hasErrors =
AnalyzerWithCompilerReport.reportDiagnostics(trace.getBindingContext(), messageCollector);
if (hasErrors) {
return null;
}
ScriptDescriptor scriptDescriptor =
topDownAnalysisContext.getScripts().get(psiFile.getScript());
lastLineScope = trace.get(BindingContext.SCRIPT_SCOPE, scriptDescriptor);
if (lastLineScope == null) {
throw new IllegalStateException("last line scope is not initialized");
}
return scriptDescriptor;
}
@NotNull
public LineResult eval(@NotNull String line) {
++lineNumber;
FqName scriptFqName = new FqName("Line" + lineNumber);
Type scriptClassType = asmTypeByFqNameWithoutInnerClasses(scriptFqName);
StringBuilder fullText = new StringBuilder();
for (String prevLine : previousIncompleteLines) {
fullText.append(prevLine + "\n");
}
fullText.append(line);
LightVirtualFile virtualFile =
new LightVirtualFile(
"line" + lineNumber + JetParserDefinition.STD_SCRIPT_EXT,
JetLanguage.INSTANCE,
fullText.toString());
virtualFile.setCharset(CharsetToolkit.UTF8_CHARSET);
JetFile psiFile =
(JetFile)
((PsiFileFactoryImpl) PsiFileFactory.getInstance(jetCoreEnvironment.getProject()))
.trySetupPsiForFile(virtualFile, JetLanguage.INSTANCE, true, false);
MessageCollectorToString errorCollector = new MessageCollectorToString();
AnalyzerWithCompilerReport.SyntaxErrorReport syntaxErrorReport =
AnalyzerWithCompilerReport.reportSyntaxErrors(psiFile, errorCollector);
if (syntaxErrorReport.isOnlyErrorAtEof()) {
previousIncompleteLines.add(line);
return LineResult.incomplete();
}
previousIncompleteLines.clear();
if (syntaxErrorReport.isHasErrors()) {
return LineResult.error(errorCollector.getString());
}
prepareForTheNextReplLine(topDownAnalysisContext);
trace.clearDiagnostics();
psiFile.getScript().putUserData(ScriptHeaderResolver.PRIORITY_KEY, lineNumber);
ScriptDescriptor scriptDescriptor = doAnalyze(psiFile, errorCollector);
if (scriptDescriptor == null) {
return LineResult.error(errorCollector.getString());
}
List<Pair<ScriptDescriptor, Type>> earlierScripts = Lists.newArrayList();
for (EarlierLine earlierLine : earlierLines) {
earlierScripts.add(
Pair.create(earlierLine.getScriptDescriptor(), earlierLine.getClassType()));
}
BindingContext bindingContext =
AnalyzeExhaust.success(trace.getBindingContext(), module).getBindingContext();
GenerationState generationState =
new GenerationState(
psiFile.getProject(),
ClassBuilderFactories.BINARIES,
bindingContext,
Collections.singletonList(psiFile),
CompilerArgumentsUtil.DEFAULT_INLINE_FLAG);
compileScript(
psiFile.getScript(),
scriptClassType,
earlierScripts,
generationState,
CompilationErrorHandler.THROW_EXCEPTION);
for (OutputFile outputFile : generationState.getFactory().asList()) {
classLoader.addClass(
JvmClassName.byInternalName(outputFile.getRelativePath().replaceFirst("\\.class$", "")),
outputFile.asByteArray());
}
try {
Class<?> scriptClass = classLoader.loadClass(scriptFqName.asString());
Class<?>[] constructorParams = new Class<?>[earlierLines.size()];
Object[] constructorArgs = new Object[earlierLines.size()];
for (int i = 0; i < earlierLines.size(); ++i) {
constructorParams[i] = earlierLines.get(i).getScriptClass();
constructorArgs[i] = earlierLines.get(i).getScriptInstance();
}
Constructor<?> scriptInstanceConstructor = scriptClass.getConstructor(constructorParams);
Object scriptInstance;
try {
scriptInstance = scriptInstanceConstructor.newInstance(constructorArgs);
} catch (Throwable e) {
return LineResult.error(Throwables.getStackTraceAsString(e));
}
Field rvField = scriptClass.getDeclaredField("rv");
rvField.setAccessible(true);
Object rv = rvField.get(scriptInstance);
earlierLines.add(
new EarlierLine(line, scriptDescriptor, scriptClass, scriptInstance, scriptClassType));
return LineResult.successful(
rv,
KotlinBuiltIns.getInstance()
.getUnitType()
.equals(scriptDescriptor.getScriptCodeDescriptor().getReturnType()));
} catch (Throwable e) {
PrintWriter writer = new PrintWriter(System.err);
classLoader.dumpClasses(writer);
writer.flush();
throw UtilsPackage.rethrow(e);
}
}