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add operator to comparsion (#1883)

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Implement operator <, <=, > and >=
This commit is contained in:
pmqtt
2022-08-04 09:56:16 -07:00
committed by GitHub
parent 8af9ebda88
commit 63da070671
12 changed files with 418 additions and 6 deletions
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explorer/interpreter/interpreter.cpp
+34
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@@ -214,6 +214,10 @@ auto Interpreter::EvalPrim(Operator op, Nonnull<const Value*> static_type,
return &cast<TypeOfConstraintType>(static_type)->constraint_type();
case Operator::As:
case Operator::Eq:
case Operator::Less:
case Operator::LessEq:
case Operator::Greater:
case Operator::GreaterEq:
case Operator::BitwiseOr:
case Operator::BitwiseXor:
case Operator::BitShiftLeft:
@@ -1227,6 +1231,36 @@ auto Interpreter::StepExp() -> ErrorOr<Success> {
auto result = arena_->New<BoolValue>(lhs == rhs);
return todo_.FinishAction(result);
}
case IntrinsicExpression::Intrinsic::IntCompare: {
CARBON_CHECK(args.size() == 2);
auto lhs = cast<IntValue>(*args[0]).value();
auto rhs = cast<IntValue>(*args[1]).value();
if (lhs < rhs) {
auto result = arena_->New<IntValue>(-1);
return todo_.FinishAction(result);
}
if (lhs == rhs) {
auto result = arena_->New<IntValue>(0);
return todo_.FinishAction(result);
}
auto result = arena_->New<IntValue>(1);
return todo_.FinishAction(result);
}
case IntrinsicExpression::Intrinsic::StrCompare: {
CARBON_CHECK(args.size() == 2);
auto& lhs = cast<StringValue>(*args[0]).value();
auto& rhs = cast<StringValue>(*args[1]).value();
if (lhs < rhs) {
auto result = arena_->New<IntValue>(-1);
return todo_.FinishAction(result);
}
if (lhs == rhs) {
auto result = arena_->New<IntValue>(0);
return todo_.FinishAction(result);
}
auto result = arena_->New<IntValue>(1);
return todo_.FinishAction(result);
}
case IntrinsicExpression::Intrinsic::IntBitComplement: {
CARBON_CHECK(args.size() == 1);
return todo_.FinishAction(