@Override
public IRubyObject interpret(
Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
// Serialization killed our dynamic scope. We can just create an empty one
// since serialization cannot serialize an eval (which is the only thing
// which is capable of having a non-empty dynamic scope).
if (scope == null) {
scope = DynamicScope.newDynamicScope(staticScope);
}
StaticScope theStaticScope = scope.getStaticScope();
// Each root node has a top-level scope that we need to push
context.preScopedBody(scope);
if (theStaticScope.getModule() == null) {
theStaticScope.setModule(runtime.getObject());
}
try {
return bodyNode.interpret(runtime, context, self, aBlock);
} finally {
context.postScopedBody();
}
}
/**
* Evaluate the given string.
*
* @param context the current thread's context
* @param self the self to evaluate under
* @param src The string containing the text to be evaluated
* @param file The filename to use when reporting errors during the evaluation
* @param lineNumber that the eval supposedly starts from
* @return An IRubyObject result from the evaluation
*/
public static IRubyObject evalSimple(
ThreadContext context, IRubyObject self, RubyString src, String file, int lineNumber) {
// this is ensured by the callers
assert file != null;
Ruby runtime = src.getRuntime();
// no binding, just eval in "current" frame (caller's frame)
RubyString source = src.convertToString();
DynamicScope evalScope = context.getCurrentScope().getEvalScope(runtime);
evalScope.getStaticScope().determineModule();
try {
Node node = runtime.parseEval(source.getByteList(), file, evalScope, lineNumber);
if (runtime.getInstanceConfig().getCompileMode() == CompileMode.OFFIR) {
// SSS FIXME: AST interpreter passed both a runtime (which comes from the source string)
// and the thread-context rather than fetch one from the other. Why is that?
return Interpreter.interpretSimpleEval(runtime, file, lineNumber, "(eval)", node, self);
} else {
return INTERPRET_EVAL(
runtime, context, file, lineNumber, node, "(eval)", self, Block.NULL_BLOCK);
}
} catch (JumpException.BreakJump bj) {
throw runtime.newLocalJumpError(
RubyLocalJumpError.Reason.BREAK, (IRubyObject) bj.getValue(), "unexpected break");
} catch (StackOverflowError soe) {
throw runtime.newSystemStackError("stack level too deep", soe);
}
}
public RootNode(ISourcePosition position, DynamicScope scope, Node bodyNode) {
super(position);
assert bodyNode != null : "bodyNode is not null";
this.scope = scope;
this.staticScope = scope.getStaticScope();
this.bodyNode = bodyNode;
}
/**
* Evaluate the given string under the specified binding object. If the binding is not a Proc or
* Binding object (RubyProc or RubyBinding) throw an appropriate type error.
*
* @param context the thread context for the current thread
* @param self the self against which eval was called; used as self in the eval in 1.9 mode
* @param src The string containing the text to be evaluated
* @param binding The binding object under which to perform the evaluation
* @return An IRubyObject result from the evaluation
*/
public static IRubyObject evalWithBinding(
ThreadContext context, IRubyObject self, IRubyObject src, Binding binding) {
Ruby runtime = src.getRuntime();
DynamicScope evalScope;
if (runtime.is1_9()) {
// in 1.9, eval scopes are local to the binding
evalScope = binding.getEvalScope(runtime);
} else {
// in 1.8, eval scopes are local to the parent scope
evalScope = binding.getDynamicScope().getEvalScope(runtime);
}
// FIXME: This determine module is in a strange location and should somehow be in block
evalScope.getStaticScope().determineModule();
Frame lastFrame = context.preEvalWithBinding(binding);
try {
// Binding provided for scope, use it
RubyString source = src.convertToString();
Node node =
runtime.parseEval(source.getByteList(), binding.getFile(), evalScope, binding.getLine());
Block block = binding.getFrame().getBlock();
if (runtime.getInstanceConfig().getCompileMode() == CompileMode.OFFIR) {
// SSS FIXME: AST interpreter passed both a runtime (which comes from the source string)
// and the thread-context rather than fetch one from the other. Why is that?
return Interpreter.interpretBindingEval(
runtime, binding.getFile(), binding.getLine(), binding.getMethod(), node, self, block);
} else {
return INTERPRET_EVAL(
runtime,
context,
binding.getFile(),
binding.getLine(),
node,
binding.getMethod(),
self,
block);
}
} catch (JumpException.BreakJump bj) {
throw runtime.newLocalJumpError(
RubyLocalJumpError.Reason.BREAK, (IRubyObject) bj.getValue(), "unexpected break");
} catch (JumpException.RedoJump rj) {
throw runtime.newLocalJumpError(
RubyLocalJumpError.Reason.REDO, (IRubyObject) rj.getValue(), "unexpected redo");
} catch (StackOverflowError soe) {
throw runtime.newSystemStackError("stack level too deep", soe);
} finally {
context.postEvalWithBinding(binding, lastFrame);
}
}
@Override
public Object interpret(
ThreadContext context,
StaticScope currScope,
DynamicScope currDynScope,
IRubyObject self,
Object[] temp) {
int i = 0;
while (!currDynScope.getStaticScope().isArgumentScope()) {
currDynScope = currDynScope.getParentScope();
i++;
}
return context.runtime.newFixnum(i);
}
@Override
public Object retrieve(
ThreadContext context, IRubyObject self, DynamicScope currDynScope, Object[] temp) {
return currDynScope.getStaticScope();
}