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Code Issues Packages Projects Releases 10 Wiki Activity

Perform type-checking in place (#867)

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This commit is contained in:
Geoff Romer
2021-10-11 16:37:39 -07:00
committed by GitHub
parent d177a08e01
commit a99d882223
6 changed files with 189 additions and 319 deletions
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executable_semantics/interpreter/interpreter.cpp
+6 -7
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@@ -173,8 +173,7 @@ void Interpreter::InitEnv(const Declaration& d, Env* env) {
}
}
void Interpreter::InitGlobals(
const std::vector<Nonnull<const Declaration*>>& fs) {
void Interpreter::InitGlobals(llvm::ArrayRef<Nonnull<Declaration*>> fs) {
for (const auto d : fs) {
InitEnv(*d, &globals);
}
@@ -1150,8 +1149,9 @@ class Interpreter::DoTransition {
void Interpreter::Step() {
Nonnull<Frame*> frame = stack.Top();
if (frame->todo.IsEmpty()) {
FATAL_RUNTIME_ERROR_NO_LINE()
<< "fell off end of function " << frame->name << " without `return`";
std::visit(DoTransition(this),
Transition{UnwindFunctionCall{TupleValue::Empty()}});
return;
}
Nonnull<Action*> act = frame->todo.Top();
@@ -1171,9 +1171,8 @@ void Interpreter::Step() {
} // switch
}
auto Interpreter::InterpProgram(
const std::vector<Nonnull<const Declaration*>>& fs,
Nonnull<const Expression*> call_main) -> int {
auto Interpreter::InterpProgram(llvm::ArrayRef<Nonnull<Declaration*>> fs,
Nonnull<const Expression*> call_main) -> int {
// Check that the interpreter is in a clean state.
CHECK(globals.IsEmpty());
CHECK(stack.IsEmpty());