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package com.oracle.truffle.llvm.runtime.debug.debugexpr.nodes;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.ExecutableNode;
import com.oracle.truffle.llvm.runtime.LLVMLanguage;
import com.oracle.truffle.llvm.runtime.debug.LLVMDebuggerValue;
import com.oracle.truffle.llvm.runtime.debug.debugexpr.parser.DebugExprException;
import com.oracle.truffle.llvm.runtime.except.LLVMParserException;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;
public class DebugExprExecutableNode extends ExecutableNode {
@Child LLVMExpressionNode root;
public DebugExprExecutableNode(LLVMExpressionNode root) {
super(LLVMLanguage.getLanguage());
this.root = root;
}
@TruffleBoundary
private static String valueOf(Object objectToDisplay) {
return String.valueOf(objectToDisplay);
}
@Override
public Object execute(VirtualFrame frame) {
try {
// try to execute node
Object objectToDisplay = root.executeGeneric(frame);
if (objectToDisplay instanceof LLVMDebuggerValue) {
return objectToDisplay;
} else {
return valueOf(objectToDisplay);
}
} catch (DebugExprException | LLVMParserException e) {
// return message of exception that occurred during AST execution
return e.getMessage();
}
}
}