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Change 'switch' not to fall through between empty cases and always require at

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least one statement per case

rdar://16301313


Swift SVN r15266
This commit is contained in:
Dmitri Hrybenko
2014-03-20 11:44:59 +00:00
parent bf2568f8e9
commit 11fea869c1
16 changed files with 402 additions and 407 deletions
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8
include/swift/AST/DiagnosticsParse.def
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@@ -554,7 +554,7 @@ ERROR(init_expected_self,type_parsing,PointsToFirstBadToken,
// Pattern parsing diagnostics
//------------------------------------------------------------------------------
ERROR(expected_pattern,pattern_parsing,none,
ERROR(expected_pattern,pattern_parsing,PointsToFirstBadToken,
"expected pattern", ())
ERROR(expected_pattern_is_keyword,pattern_parsing,none,
"keyword '%0' cannot be used as an identifier", (StringRef))
@@ -690,15 +690,15 @@ ERROR(expected_case_where_expr,stmt_parsing,PointsToFirstBadToken,
"expected expression for 'where' guard of 'case'", ())
ERROR(expected_case_colon,stmt_parsing,PointsToFirstBadToken,
"expected ':' after '%0'", (StringRef))
ERROR(default_with_other_labels,stmt_parsing,none,
"'default' cannot appear with other 'case' or 'default' labels over the same block",
())
ERROR(default_with_where,stmt_parsing,none,
"'default' cannot be used with a 'where' guard expression",
())
ERROR(var_binding_with_multiple_case_patterns,stmt_parsing,none,
"'case' labels with multiple patterns cannot declare variables",
())
ERROR(case_stmt_without_body,stmt_parsing,none,
"'case' label in a 'switch' should have at least one executable "
"statement", ())
//------------------------------------------------------------------------------
// Expression parsing diagnostics