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Allow path to ct.sym to be specified via a system property #296

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Allow path to ct.sym to be specified via a system property #296

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19 changes: 14 additions & 5 deletions java/com/google/turbine/binder/CtSymClassBinder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -48,11 +48,20 @@ public final class CtSymClassBinder {
private static final int FEATURE_VERSION = Runtime.version().feature();

public static @Nullable ClassPath bind(int version) throws IOException {
String javaHome = JAVA_HOME.value();
requireNonNull(javaHome, "attempted to use --release, but JAVA_HOME is not set");
Path ctSym = Paths.get(javaHome).resolve("lib/ct.sym");
if (!Files.exists(ctSym)) {
throw new IllegalStateException("lib/ct.sym does not exist in " + javaHome);
Path ctSym;
String explicitCtSymPath = System.getProperty("turbine.ctSymPath");
if (explicitCtSymPath == null) {
String javaHome = JAVA_HOME.value();
requireNonNull(javaHome, "attempted to use --release, but JAVA_HOME is not set");
ctSym = Paths.get(javaHome).resolve("lib/ct.sym");
if (!Files.exists(ctSym)) {
throw new IllegalStateException("lib/ct.sym does not exist in " + javaHome);
}
} else {
ctSym = Paths.get(explicitCtSymPath);
if (!Files.exists(ctSym)) {
throw new IllegalStateException("ct.sym does not exist at " + ctSym);
}
}
Map<ClassSymbol, BytecodeBoundClass> map = new HashMap<>();
Map<ModuleSymbol, ModuleInfo> modules = new HashMap<>();
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