carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-10-04 17:13:16 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity

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

Browse Source 
* 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
Download Patch File Download Diff File Expand all files Collapse all files
executable_semantics/ast/pattern.h
+16 -6
View File
@@ -218,6 +218,19 @@ auto ParenExpressionToParenPattern(Nonnull<Arena*> arena,
// A pattern that matches an alternative of a choice type.
class AlternativePattern : public Pattern {
public:
// Constructs an AlternativePattern that matches the alternative specified
// by `alternative`, if its arguments match `arguments`.
static auto Create(Nonnull<Arena*> arena, SourceLocation source_loc,
Nonnull<Expression*> alternative,
Nonnull<TuplePattern*> arguments)
-> ErrorOr<Nonnull<AlternativePattern*>> {
ASSIGN_OR_RETURN(Nonnull<FieldAccessExpression*> field_access,
RequireFieldAccess(alternative));
return arena->New<AlternativePattern>(source_loc,
&field_access->aggregate(),
field_access->field(), arguments);
}
// Constructs an AlternativePattern that matches a value of the type
// specified by choice_type if it represents an alternative named
// alternative_name, and its arguments match `arguments`.
@@ -230,12 +243,6 @@ class AlternativePattern : public Pattern {
alternative_name_(std::move(alternative_name)),
arguments_(arguments) {}
// Constructs an AlternativePattern that matches the alternative specified
// by `alternative`, if its arguments match `arguments`.
AlternativePattern(SourceLocation source_loc,
Nonnull<Expression*> alternative,
Nonnull<TuplePattern*> arguments);
static auto classof(const AstNode* node) -> bool {
return InheritsFromAlternativePattern(node->kind());
}
@@ -249,6 +256,9 @@ class AlternativePattern : public Pattern {
auto arguments() -> TuplePattern& { return *arguments_; }
private:
static auto RequireFieldAccess(Nonnull<Expression*> alternative)
-> ErrorOr<Nonnull<FieldAccessExpression*>>;
Nonnull<Expression*> choice_type_;
std::string alternative_name_;
Nonnull<TuplePattern*> arguments_;