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Implement global variables. Struct and Pointer initializers are not implemented yet though

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@818 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2001-10-15 05:51:48 +00:00
parent 8d2de8a82c
commit 2e42d3a306
6 changed files with 254 additions and 43 deletions
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45
lib/ExecutionEngine/Interpreter/UserInput.cpp
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@ -5,6 +5,7 @@
//===----------------------------------------------------------------------===//
#include "Interpreter.h"
#include "llvm/Bytecode/Reader.h"
#include "llvm/Assembly/Writer.h"
#include <algorithm>
@ -81,9 +82,14 @@ void Interpreter::handleUserInput() {
switch (E->CID) {
case Quit: UserQuit = true; break;
case Load:
cin >> Command;
loadModule(Command);
break;
case Flush: flushModule(); break;
case Print:
cin >> Command;
printValue(Command);
print(Command);
break;
case Info:
cin >> Command;
@ -118,6 +124,43 @@ void Interpreter::handleUserInput() {
} while (!UserQuit);
}
//===----------------------------------------------------------------------===//
// loadModule - Load a new module to execute...
//
void Interpreter::loadModule(const string &Filename) {
if (CurMod && !flushModule()) return; // Kill current execution
CurMod = ParseBytecodeFile(Filename);
if (CurMod == 0) {
cout << "Error parsing '" << Filename << "': No module loaded.\n";
return;
}
// TODO: link in support library...
}
//===----------------------------------------------------------------------===//
// flushModule - Return true if the current program has been unloaded.
//
bool Interpreter::flushModule() {
if (CurMod == 0) {
cout << "Error flushing: No module loaded!\n";
return false;
}
if (!ECStack.empty()) {
// TODO: if use is not sure, return false
cout << "Killing current execution!\n";
ECStack.clear();
CurFrame = -1;
}
delete CurMod;
CurMod = 0;
ExitCode = 0;
return true;
}
//===----------------------------------------------------------------------===//
// setBreakpoint - Enable a breakpoint at the specified location