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More exception handling ...

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This commit is contained in:
Markus Hauschild
2013-06-02 00:05:26 +02:00
parent 1a64ce0e17
commit c4e22b8627
1 changed files with 10 additions and 8 deletions
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18
src/AST/CodeGenVisitor.cpp
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@@ -79,7 +79,11 @@ void CodeGenVisitor::visit(ConstantExpression* e) {
} }
void CodeGenVisitor::visit(ExpressionStatement* e) { void CodeGenVisitor::visit(ExpressionStatement* e) {
value_ = 0;
e->getExpr()->accept(this); e->getExpr()->accept(this);
if (!value_) {
throw "error evaluating expression";
}
} }
void CodeGenVisitor::visit(ForStatement* e) void CodeGenVisitor::visit(ForStatement* e)
@@ -87,7 +91,11 @@ void CodeGenVisitor::visit(ForStatement* e)
value_ = 0; value_ = 0;
e->getInit()->accept(this); e->getInit()->accept(this);
value_ = 0;
e->getCond()->accept(this); e->getCond()->accept(this);
if (!value_) {
throw "error evaluating expression";
}
llvm::Function* f = builder_->GetInsertBlock()->getParent(); llvm::Function* f = builder_->GetInsertBlock()->getParent();
llvm::BasicBlock* loopBB = llvm::BasicBlock::Create(llvm::getGlobalContext(), "loop", f); llvm::BasicBlock* loopBB = llvm::BasicBlock::Create(llvm::getGlobalContext(), "loop", f);
@@ -97,20 +105,14 @@ void CodeGenVisitor::visit(ForStatement* e)
value_ = 0; value_ = 0;
e->getStmt()->accept(this); e->getStmt()->accept(this);
if (value_ == 0) {
// throw err
}
value_ = 0; value_ = 0;
e->getStep()->accept(this); e->getStep()->accept(this);
if (value_ == 0) {
// throw err
}
value_ = 0; value_ = 0;
e->getCond()->accept(this); e->getCond()->accept(this);
if (value_ == 0) { if (!value_) {
// throw err throw "error evaluating expression";
} }
llvm::BasicBlock* afterBB = llvm::BasicBlock::Create(llvm::getGlobalContext(), "afterLoop",f); llvm::BasicBlock* afterBB = llvm::BasicBlock::Create(llvm::getGlobalContext(), "afterLoop",f);