Replaced std::exit() with return Carbon::ErrorOr for expected errors like invalid syntax (#1120)

* Replaced std::exit() with return llvm::Expected/llvm::Error<T> for expected errors like invalid syntax.

* Use llvm::formatv() for formatting lexer error messages.
x

* Addresed merge errors.

* Fixed impl scope.

* Made ErrorBuilder::operator<< nodiscard, to catch code forgetting 'return' in 'return FATAL_COMPILATION_ERROR()'.

* FatalComplationError() -> ParseAndLexContext::RecordLexerError().
Other usages of ERROR_TOKEN in lexer.lpp were actually supposed to be END_OF_FILE.

* Update executable_semantics/syntax/parse_and_lex_context.h

Co-authored-by: Jon Meow <jperkins@google.com>

* Code review fixes.

* Update executable_semantics/syntax/parser.ypp

Co-authored-by: Jon Meow <jperkins@google.com>

* More code review fixes.

* Update executable_semantics/interpreter/type_checker.h

Co-authored-by: Jon Meow <jperkins@google.com>

* Yet more code review fixes...

* Update executable_semantics/syntax/lexer.lpp

Co-authored-by: Jon Meow <jperkins@google.com>

* code review comments

* Update executable_semantics/interpreter/interpreter.cpp

Co-authored-by: Geoff Romer <gromer@google.com>

* Apply suggestions from code review

Co-authored-by: Jon Meow <jperkins@google.com>

* Update executable_semantics/syntax/lexer.lpp

Co-authored-by: Jon Meow <jperkins@google.com>

* code review

* code review

* Apply suggestions from code review

Co-authored-by: Jon Meow <jperkins@google.com>

* formatted code

* review comments

* Switched to the new ErrorOr<V> error implementation

* code review comments

* fixed comment

* restored ostream.h as #976 makes the change unnecesary

* review comments

Co-authored-by: Jon Meow <jperkins@google.com>
Co-authored-by: Geoff Romer <gromer@google.com>
This commit is contained in:
pk19604014
2022-03-22 16:17:04 -04:00
committed by GitHub
co-authored by Jon Meow Geoff Romer
parent e5a87af6fe
commit aa8a5f174d
43 changed files with 1324 additions and 873 deletions
+7 -8
View File
@@ -465,11 +465,15 @@ class IntrinsicExpression : public Expression {
Print,
};
explicit IntrinsicExpression(std::string_view intrinsic_name,
Nonnull<TupleLiteral*> args,
// Returns the enumerator corresponding to the intrinsic named `name`,
// or raises a fatal compile error if there is no such enumerator.
static auto FindIntrinsic(std::string_view name, SourceLocation source_loc)
-> ErrorOr<Intrinsic>;
explicit IntrinsicExpression(Intrinsic intrinsic, Nonnull<TupleLiteral*> args,
SourceLocation source_loc)
: Expression(AstNodeKind::IntrinsicExpression, source_loc),
intrinsic_(FindIntrinsic(intrinsic_name, source_loc)),
intrinsic_(intrinsic),
args_(args) {}
static auto classof(const AstNode* node) -> bool {
@@ -481,11 +485,6 @@ class IntrinsicExpression : public Expression {
auto args() -> TupleLiteral& { return *args_; }
private:
// Returns the enumerator corresponding to the intrinsic named `name`,
// or raises a fatal compile error if there is no such enumerator.
static auto FindIntrinsic(std::string_view name, SourceLocation source_loc)
-> Intrinsic;
Intrinsic intrinsic_;
Nonnull<TupleLiteral*> args_;
};