static void HandleTopLevelExpression(SessionContext &S, KaleidoscopeJIT &J) {
// Evaluate a top-level expression into an anonymous function.
if (auto F = ParseTopLevelExpr()) {
IRGenContext C(S);
if (auto ExprFunc = F->IRGen(C)) {
#ifndef MINIMAL_STDERR_OUTPUT
std::cerr << "Expression function:\n";
ExprFunc->dump();
#endif
// Add the CodeGen'd module to the JIT. Keep a handle to it: We can remove
// this module as soon as we've executed Function ExprFunc.
auto H = J.addModule(C.takeM());
// Get the address of the JIT'd function in memory.
auto ExprSymbol = J.findUnmangledSymbol("__anon_expr");
// Cast it to the right type (takes no arguments, returns a double) so we
// can call it as a native function.
double (*FP)() = (double (*)())(intptr_t)ExprSymbol.getAddress();
#ifdef MINIMAL_STDERR_OUTPUT
FP();
#else
std::cerr << "Evaluated to " << FP() << "\n";
#endif
// Remove the function.
J.removeModule(H);
}
} else {
// Skip token for error recovery.
getNextToken();
}
}
static void HandleDefinition(SessionContext &S, KaleidoscopeJIT &J) {
if (auto F = ParseDefinition()) {
S.addPrototypeAST(llvm::make_unique<PrototypeAST>(*F->Proto));
J.addFunctionAST(std::move(F));
} else {
// Skip token for error recovery.
getNextToken();
}
}
