mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
43e2d107e1
Like switch cases, a catch clause may now include a comma- separated list of patterns. The body will be executed if any one of those patterns is matched. This patch replaces `CatchStmt` with `CaseStmt` as the children of `DoCatchStmt` in the AST. This necessitates a number of changes throughout the compiler, including: - Parser & libsyntax support for the new syntax and AST structure - Typechecking of multi-pattern catches, including those which contain bindings. - SILGen support - Code completion updates - Profiler updates - Name lookup changes
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//===--- StmtNodes.def - Swift Statement AST Metaprogramming ----*- C++ -*-===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines macros used for macro-metaprogramming with statements.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// STMT(Id, Parent)
|
|
/// If the statement node is not abstract, its enumerator value is
|
|
/// StmtKind::Id. The node's class name is Id##Stmt, and the name of
|
|
/// its base class (in the Stmt hierarchy) is Parent.
|
|
|
|
/// An abstract statement node is an abstract base class in the hierarchy;
|
|
/// it is never a most-derived type, and it does not have an enumerator in
|
|
/// StmtKind.
|
|
///
|
|
/// Most metaprograms do not care about abstract statements, so the default
|
|
/// is to ignore them.
|
|
#ifndef ABSTRACT_STMT
|
|
#define ABSTRACT_STMT(Id, Parent)
|
|
#endif
|
|
|
|
/// A subclass of LabeledStmt. Forwards to STMT by default.
|
|
#ifndef LABELED_STMT
|
|
#define LABELED_STMT(Id, Parent) STMT(Id, Parent)
|
|
#endif
|
|
|
|
/// A convenience for determining the range of statements. These will always
|
|
/// appear immediately after the last member.
|
|
#ifndef STMT_RANGE
|
|
#define STMT_RANGE(Id, First, Last)
|
|
#endif
|
|
|
|
#ifndef LAST_STMT
|
|
#define LAST_STMT(Id)
|
|
#endif
|
|
|
|
STMT(Brace, Stmt)
|
|
STMT(Return, Stmt)
|
|
STMT(Yield, Stmt)
|
|
STMT(Defer, Stmt)
|
|
ABSTRACT_STMT(Labeled, Stmt)
|
|
ABSTRACT_STMT(LabeledConditional, LabeledStmt)
|
|
LABELED_STMT(If, LabeledConditionalStmt)
|
|
LABELED_STMT(Guard, LabeledConditionalStmt)
|
|
LABELED_STMT(While, LabeledConditionalStmt)
|
|
STMT_RANGE(LabeledConditional, If, While)
|
|
LABELED_STMT(Do, LabeledStmt)
|
|
LABELED_STMT(DoCatch, LabeledStmt)
|
|
LABELED_STMT(RepeatWhile, LabeledStmt)
|
|
LABELED_STMT(ForEach, LabeledStmt)
|
|
LABELED_STMT(Switch, LabeledStmt)
|
|
STMT_RANGE(Labeled, If, Switch)
|
|
STMT(Case, Stmt)
|
|
STMT(Break, Stmt)
|
|
STMT(Continue, Stmt)
|
|
STMT(Fallthrough, Stmt)
|
|
STMT(Fail, Stmt)
|
|
STMT(Throw, Stmt)
|
|
STMT(PoundAssert, Stmt)
|
|
LAST_STMT(PoundAssert)
|
|
|
|
#undef STMT_RANGE
|
|
#undef LABELED_STMT
|
|
#undef ABSTRACT_STMT
|
|
#undef STMT
|
|
#undef LAST_STMT
|