A command-line option to ignore compilation errors and generate byte code anyway.

Needed for: building jdk-headers

compiler/cli/src/org/jetbrains/jet/cli/KotlinCompiler.java

@@ -37,6 +37,9 @@ public class KotlinCompiler {
 
         @Argument(value = "help", alias = "h", description = "show help")
         public boolean help;
+
+        @Argument(value = "ignoreErrors", description = "Emit byte code even if there are compilation errors (not recommended)")
+        public boolean ignoreErrors;
     }
 
     private static void usage(PrintStream target) {
@@ -77,6 +80,7 @@ public class KotlinCompiler {
         }
 
         CompileEnvironment environment = new CompileEnvironment();
+        environment.setIgnoreErrors(arguments.ignoreErrors);
 
         if (arguments.stdlib != null) {
             environment.setStdlib(arguments.stdlib);

compiler/cli/src/org/jetbrains/jet/compiler/CompileEnvironment.java

@@ -37,6 +37,8 @@ public class CompileEnvironment {
     private PrintStream myErrorStream = System.out;
     private URL myStdlib;
 
+    private boolean ignoreErrors = false;
+
     public CompileEnvironment() {
         myRootDisposable = new Disposable() {
             @Override
@@ -50,6 +52,10 @@ public class CompileEnvironment {
         myErrorStream = errorStream;
     }
 
+    public void setIgnoreErrors(boolean ignoreErrors) {
+        this.ignoreErrors = ignoreErrors;
+    }
+
     public void dispose() {
         Disposer.dispose(myRootDisposable);
     }
@@ -199,7 +205,7 @@ public class CompileEnvironment {
 
         ensureRuntime();
 
-        if (!moduleCompileSession.analyze(myErrorStream)) {
+        if (!moduleCompileSession.analyze(myErrorStream) && !ignoreErrors) {
             return null;
         }
         return moduleCompileSession.generate();
@@ -296,7 +302,7 @@ public class CompileEnvironment {
 
         ensureRuntime();
 
-        if (!session.analyze(myErrorStream)) {
+        if (!session.analyze(myErrorStream) && !ignoreErrors) {
             return false;
         }