zhengkai updated this revision to Diff 34943.
zhengkai marked 8 inline comments as done.
http://reviews.llvm.org/D12379
Files:
include/clang/Basic/SourceManager.h
lib/Basic/SourceManager.cpp
lib/Frontend/DiagnosticRenderer.cpp
test/Index/fix-its.m
test/Misc/caret-diags-macros.c
test/Misc/diag-macro-backtrace2.c
test/Misc/reduced-diags-macros.cpp
test/Misc/serialized-diags.c
Index: test/Misc/serialized-diags.c
===================================================================
--- test/Misc/serialized-diags.c
+++ test/Misc/serialized-diags.c
@@ -55,7 +55,6 @@
// CHECK: Range: {{.*[/\\]}}serialized-diags.c:22:3 {{.*[/\\]}}serialized-diags.c:22:6
// CHECK: Range: {{.*[/\\]}}serialized-diags.c:22:13 {{.*[/\\]}}serialized-diags.c:22:18
// CHECK: +-{{.*[/\\]}}serialized-diags.c:20:15: note: expanded from macro 'false' []
-// CHECK: +-Range: {{.*[/\\]}}serialized-diags.c:22:3 {{.*[/\\]}}serialized-diags.c:22:6
// CHECK: +-Range: {{.*[/\\]}}serialized-diags.c:20:15 {{.*[/\\]}}serialized-diags.c:20:16
// CHECK: +-{{.*[/\\]}}serialized-diags.c:19:1: note: 'taz' declared here []
// CHECK: {{.*[/\\]}}serialized-diags.h:5:7: warning: incompatible integer to pointer conversion initializing 'char *' with an expression of type 'int' [-Wint-conversion]
Index: test/Misc/reduced-diags-macros.cpp
===================================================================
--- test/Misc/reduced-diags-macros.cpp
+++ test/Misc/reduced-diags-macros.cpp
@@ -11,7 +11,7 @@
// CHECK-NEXT: ~~~~~~~~~~~~~~^~
// CHECK-NEXT: {{.*}}:3:34: note: expanded from macro 'NO_INITIATION'
// CHECK-NEXT: #define NO_INITIATION(x) int a = x * 2
-// CHECK-NEXT: ^
+// CHECK-NEXT: ~ ^
// CHECK: {{.*}}:7:15: error: use of undeclared identifier 'b'
// CHECK-NEXT: NO_DEFINITION(b);
@@ -27,3 +27,18 @@
// CHECK: {{.*}}:25:23: error: use of undeclared identifier 'x'
// CHECK-NEXT: int p = SWAP_ARGU(3, x);
// CHECK-NEXT: ^
+
+#define APPLY(f,x,y) x f y
+
+struct node {
+};
+
+node ff;
+
+int r = APPLY(+,ff,1);
+// CHECK: {{.*}}:38:15: error: invalid operands to binary expression ('node' and 'int')
+// CHECK-NEXT: int r = APPLY(+,ff,1);
+// CHECK-NEXT: ^ ~~ ~
+// CHECK-NEXT: {{.*}}:31:24: note: expanded from macro 'APPLY'
+// CHECK-NEXT: #define APPLY(f,x,y) x f y
+// CHECK-NEXT: ~ ^ ~
\ No newline at end of file
Index: test/Misc/diag-macro-backtrace2.c
===================================================================
--- test/Misc/diag-macro-backtrace2.c
+++ test/Misc/diag-macro-backtrace2.c
@@ -16,7 +16,7 @@
// CHECK: :15:3: error: invalid operands to binary expression
// CHECK: ('const char *' and 'int')
// CHECK: a(str);
- // CHECK: ^ ~~~
+ // CHECK: ^~~~~~
// CHECK: :3:11: note: expanded from macro 'a'
// CHECK: #define a b
// CHECK: ^
@@ -28,7 +28,7 @@
// CHECK: ^~~~
// CHECK: :6:15: note: expanded from macro 'd'
// CHECK: #define d(x) x*1
- // CHECK: ^~
+ // CHECK: ~^~
e(str);
// CHECK: :33:5: warning: expression result unused
Index: test/Misc/caret-diags-macros.c
===================================================================
--- test/Misc/caret-diags-macros.c
+++ test/Misc/caret-diags-macros.c
@@ -16,9 +16,6 @@
void bar() {
C(1);
// CHECK: {{.*}}:17:5: warning: expression result unused
- // CHECK: {{.*}}:15:16: note: expanded from macro 'C'
- // CHECK: {{.*}}:14:16: note: expanded from macro 'B'
- // CHECK: {{.*}}:13:14: note: expanded from macro 'A'
}
// rdar://7597492
@@ -41,62 +38,59 @@
void test() {
macro_args3(11);
- // CHECK: {{.*}}:43:15: warning: expression result unused
+ // CHECK: {{.*}}:40:15: warning: expression result unused
// Also check that the 'caret' printing agrees with the location here where
// its easy to FileCheck.
// CHECK-NEXT: macro_args3(11);
// CHECK-NEXT: {{^ \^~}}
- // CHECK: {{.*}}:36:36: note: expanded from macro 'macro_args3'
- // CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2'
- // CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1'
macro_many_args3(
1,
2,
3);
- // CHECK: {{.*}}:55:5: warning: expression result unused
- // CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
- // CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
- // CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
+ // CHECK: {{.*}}:49:5: warning: expression result unused
+ // CHECK: {{.*}}:37:55: note: expanded from macro 'macro_many_args3'
+ // CHECK: {{.*}}:36:55: note: expanded from macro 'macro_many_args2'
+ // CHECK: {{.*}}:35:35: note: expanded from macro 'macro_many_args1'
macro_many_args3(
1,
M2,
3);
- // CHECK: {{.*}}:64:5: warning: expression result unused
+ // CHECK: {{.*}}:58:5: warning: expression result unused
// CHECK: {{.*}}:4:12: note: expanded from macro 'M2'
- // CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
- // CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
- // CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
+ // CHECK: {{.*}}:37:55: note: expanded from macro 'macro_many_args3'
+ // CHECK: {{.*}}:36:55: note: expanded from macro 'macro_many_args2'
+ // CHECK: {{.*}}:35:35: note: expanded from macro 'macro_many_args1'
macro_many_args3(
1,
macro_args2(22),
3);
- // CHECK: {{.*}}:74:17: warning: expression result unused
+ // CHECK: {{.*}}:68:17: warning: expression result unused
// This caret location needs to be printed *inside* a different macro's
// arguments.
// CHECK-NEXT: macro_args2(22),
// CHECK-NEXT: {{^ \^~}}
- // CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2'
- // CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1'
- // CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
- // CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
- // CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
+ // CHECK: {{.*}}:32:36: note: expanded from macro 'macro_args2'
+ // CHECK: {{.*}}:31:24: note: expanded from macro 'macro_args1'
+ // CHECK: {{.*}}:37:55: note: expanded from macro 'macro_many_args3'
+ // CHECK: {{.*}}:36:55: note: expanded from macro 'macro_many_args2'
+ // CHECK: {{.*}}:35:35: note: expanded from macro 'macro_many_args1'
}
#define variadic_args1(x, y, ...) y
#define variadic_args2(x, ...) variadic_args1(x, __VA_ARGS__)
#define variadic_args3(x, y, ...) variadic_args2(x, y, __VA_ARGS__)
void test2() {
variadic_args3(1, 22, 3, 4);
- // CHECK: {{.*}}:93:21: warning: expression result unused
+ // CHECK: {{.*}}:87:21: warning: expression result unused
// CHECK-NEXT: variadic_args3(1, 22, 3, 4);
// CHECK-NEXT: {{^ \^~}}
- // CHECK: {{.*}}:90:53: note: expanded from macro 'variadic_args3'
- // CHECK: {{.*}}:89:50: note: expanded from macro 'variadic_args2'
- // CHECK: {{.*}}:88:35: note: expanded from macro 'variadic_args1'
+ // CHECK: {{.*}}:84:53: note: expanded from macro 'variadic_args3'
+ // CHECK: {{.*}}:83:50: note: expanded from macro 'variadic_args2'
+ // CHECK: {{.*}}:82:35: note: expanded from macro 'variadic_args1'
}
#define variadic_pasting_args1(x, y, z) y
@@ -107,68 +101,68 @@
void test3() {
variadic_pasting_args3(1, 2, 3, 4);
- // CHECK: {{.*}}:109:32: warning: expression result unused
- // CHECK: {{.*}}:105:72: note: expanded from macro 'variadic_pasting_args3'
- // CHECK: {{.*}}:103:68: note: expanded from macro 'variadic_pasting_args2'
- // CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1'
+ // CHECK: {{.*}}:103:32: warning: expression result unused
+ // CHECK: {{.*}}:99:72: note: expanded from macro 'variadic_pasting_args3'
+ // CHECK: {{.*}}:97:68: note: expanded from macro 'variadic_pasting_args2'
+ // CHECK: {{.*}}:96:41: note: expanded from macro 'variadic_pasting_args1'
variadic_pasting_args3a(1, 2, 3, 4);
- // CHECK: {{.*}}:115:3: warning: expression result unused
+ // CHECK: {{.*}}:109:3: warning: expression result unused
// CHECK-NEXT: variadic_pasting_args3a(1, 2, 3, 4);
- // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}
- // CHECK: {{.*}}:106:44: note: expanded from macro 'variadic_pasting_args3a'
+ // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~}}
+ // CHECK: {{.*}}:100:44: note: expanded from macro 'variadic_pasting_args3a'
// CHECK-NEXT: #define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__)
- // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}
- // CHECK: {{.*}}:104:70: note: expanded from macro 'variadic_pasting_args2a'
+ // CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~}}
+ // CHECK: {{.*}}:98:70: note: expanded from macro 'variadic_pasting_args2a'
// CHECK-NEXT: #define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__)
// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~}}
- // CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1'
+ // CHECK: {{.*}}:96:41: note: expanded from macro 'variadic_pasting_args1'
// CHECK-NEXT: #define variadic_pasting_args1(x, y, z) y
// CHECK-NEXT: {{ \^}}
}
#define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
int test4 = BAD_CONDITIONAL_OPERATOR+BAD_CONDITIONAL_OPERATOR;
-// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
+// CHECK: {{.*}}:124:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
// CHECK-NEXT: {{^ \^}}
-// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
+// CHECK: {{.*}}:124:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
// CHECK-NEXT: {{^ \^}}
-// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
+// CHECK: {{.*}}:124:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
// CHECK-NEXT: {{^ ~~~~~\^~~~}}
#define QMARK ?
#define TWOL (2<
#define X 1+TWOL 3) QMARK 4:5
int x = X;
-// CHECK: {{.*}}:145:9: note: place parentheses around the '+' expression to silence this warning
+// CHECK: {{.*}}:139:9: note: place parentheses around the '+' expression to silence this warning
// CHECK-NEXT: int x = X;
// CHECK-NEXT: {{^ \^}}
-// CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X'
+// CHECK-NEXT: {{.*}}:138:21: note: expanded from macro 'X'
// CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5
// CHECK-NEXT: {{^ ~~~~~~~~~ \^}}
-// CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK'
+// CHECK-NEXT: {{.*}}:136:15: note: expanded from macro 'QMARK'
// CHECK-NEXT: #define QMARK ?
// CHECK-NEXT: {{^ \^}}
-// CHECK-NEXT: {{.*}}:145:9: note: place parentheses around the '?:' expression to evaluate it first
+// CHECK-NEXT: {{.*}}:139:9: note: place parentheses around the '?:' expression to evaluate it first
// CHECK-NEXT: int x = X;
// CHECK-NEXT: {{^ \^}}
-// CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X'
+// CHECK-NEXT: {{.*}}:138:21: note: expanded from macro 'X'
// CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5
// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~}}
#define ONEPLUS 1+
#define Y ONEPLUS (2<3) QMARK 4:5
int y = Y;
-// CHECK: {{.*}}:164:9: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first
+// CHECK: {{.*}}:158:9: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first
// CHECK-NEXT: int y = Y;
// CHECK-NEXT: {{^ \^}}
-// CHECK-NEXT: {{.*}}:163:25: note: expanded from macro 'Y'
+// CHECK-NEXT: {{.*}}:157:25: note: expanded from macro 'Y'
// CHECK-NEXT: #define Y ONEPLUS (2<3) QMARK 4:5
// CHECK-NEXT: {{^ ~~~~~~~~~~~~~ \^}}
-// CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK'
+// CHECK-NEXT: {{.*}}:136:15: note: expanded from macro 'QMARK'
// CHECK-NEXT: #define QMARK ?
// CHECK-NEXT: {{^ \^}}
@@ -179,10 +173,10 @@
#define /* */ BARC(c, /* */b, a) (a + b ? c : c)
iequals(__LINE__, BARC(123, (456 < 345), 789), 8);
}
-// CHECK: {{.*}}:180:21: warning: operator '?:' has lower precedence than '+'
+// CHECK: {{.*}}:174:21: warning: operator '?:' has lower precedence than '+'
// CHECK-NEXT: iequals(__LINE__, BARC(123, (456 < 345), 789), 8);
// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~~~~~~~~~~}}
-// CHECK-NEXT: {{.*}}:179:41: note: expanded from macro 'BARC'
+// CHECK-NEXT: {{.*}}:173:41: note: expanded from macro 'BARC'
// CHECK-NEXT: #define /* */ BARC(c, /* */b, a) (a + b ? c : c)
// CHECK-NEXT: {{^ ~~~~~ \^}}
@@ -193,16 +187,16 @@
#if UTARG_MAX_U
#endif
-// CHECK: {{.*}}:193:5: warning: left side of operator converted from negative value to unsigned: -1 to 18446744073709551615
+// CHECK: {{.*}}:187:5: warning: left side of operator converted from negative value to unsigned: -1 to 18446744073709551615
// CHECK-NEXT: #if UTARG_MAX_U
// CHECK-NEXT: {{^ \^~~~~~~~~~~}}
-// CHECK-NEXT: {{.*}}:191:21: note: expanded from macro 'UTARG_MAX_U'
+// CHECK-NEXT: {{.*}}:185:21: note: expanded from macro 'UTARG_MAX_U'
// CHECK-NEXT: #define UTARG_MAX_U APPEND (MAX_UINT, UL)
// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~~~~}}
-// CHECK-NEXT: {{.*}}:190:27: note: expanded from macro 'APPEND'
+// CHECK-NEXT: {{.*}}:184:27: note: expanded from macro 'APPEND'
// CHECK-NEXT: #define APPEND(NUM, SUFF) APPEND2(NUM, SUFF)
// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~}}
-// CHECK-NEXT: {{.*}}:189:31: note: expanded from macro 'APPEND2'
+// CHECK-NEXT: {{.*}}:183:31: note: expanded from macro 'APPEND2'
// CHECK-NEXT: #define APPEND2(NUM, SUFF) -1 != NUM ## SUFF
// CHECK-NEXT: {{^ ~~ \^ ~~~~~~~~~~~}}
@@ -213,15 +207,15 @@
#define Cstrlen(a) strlen_test(a)
#define Csprintf sprintf2
void f(char* pMsgBuf, char* pKeepBuf) {
-Csprintf(pMsgBuf,"\nEnter minimum anagram length (2-%1d): ", Cstrlen(pKeepBuf));
+Csprintf(pMsgBuf,"\nEnter minimum anagram length (2-%1d): ", strlen_test(pKeepBuf));
}
-// CHECK: {{.*}}:216:62: warning: format specifies type 'int' but the argument has type 'unsigned long'
-// CHECK-NEXT: Csprintf(pMsgBuf,"\nEnter minimum anagram length (2-%1d): ", Cstrlen(pKeepBuf));
-// CHECK-NEXT: {{^ ~~~ \^}}
+// CHECK: {{.*}}:210:62: warning: format specifies type 'int' but the argument has type 'unsigned long'
+// CHECK-NEXT: Csprintf(pMsgBuf,"\nEnter minimum anagram length (2-%1d): ", strlen_test(pKeepBuf));
+// CHECK-NEXT: {{^ ~~~ \^~~~~~~~~~~~~~~~~~~~~}}
// CHECK-NEXT: {{^ %1lu}}
-// CHECK-NEXT: {{.*}}:213:21: note: expanded from macro 'Cstrlen'
-// CHECK-NEXT: #define Cstrlen(a) strlen_test(a)
+// CHECK-NEXT: {{.*}}:208:21: note: expanded from macro 'Csprintf'
+// CHECK-NEXT: #define Csprintf sprintf2
// CHECK-NEXT: {{^ \^}}
-// CHECK-NEXT: {{.*}}:212:56: note: expanded from macro 'sprintf2'
+// CHECK-NEXT: {{.*}}:206:56: note: expanded from macro 'sprintf2'
// CHECK-NEXT: __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
-// CHECK-NEXT: {{^ \^}}
+// CHECK-NEXT: {{^ \^~~~~~~~~~~}}
Index: test/Index/fix-its.m
===================================================================
--- test/Index/fix-its.m
+++ test/Index/fix-its.m
@@ -20,7 +20,3 @@
@end
// CHECK: FIX-IT: Insert "@" at 18:22
-// CHECK: fix-its.m:9:28: note: expanded from macro '_rdar_12584554_C'
-// CHECK: Number FIX-ITs = 0
-// CHECK: fix-its.m:7:77: note: expanded from macro '_rdar_12584554_B'
-// CHECK: Number FIX-ITs = 0
Index: lib/Frontend/DiagnosticRenderer.cpp
===================================================================
--- lib/Frontend/DiagnosticRenderer.cpp
+++ lib/Frontend/DiagnosticRenderer.cpp
@@ -306,6 +306,54 @@
}
}
+/// A recursive function to trace all possible backtrace locations
+/// to match the \p CaretLocFileID.
+static bool retrieveBeginLocation(SourceLocation &Begin,
+ FileID BeginFileID,
+ FileID CaretLocFileID,
+ const SourceManager *SM) {
+ if (BeginFileID == CaretLocFileID) return true;
+ if (!Begin.isMacroID()) return false;
+
+ SourceLocation Backup = Begin;
+ Begin = SM->getImmediateMacroCallerLoc(Begin);
+ if (SM->isMacroArgExpansion(Backup))
+ Backup = SM->getImmediateExpansionRange(Backup).first;
+ else
+ Backup = SM->getImmediateSpellingLoc(Backup);
+
+ BeginFileID = SM->getFileID(Begin);
+ if (retrieveBeginLocation(Begin,BeginFileID,CaretLocFileID,SM)) return true;
+
+ Begin = Backup;
+ BeginFileID = SM->getFileID(Backup);
+ return retrieveBeginLocation(Begin,BeginFileID,CaretLocFileID,SM);
+}
+
+static bool retrieveEndLocation(SourceLocation &End,
+ FileID EndFileID,
+ FileID CaretLocFileID,
+ const SourceManager *SM) {
+ if (EndFileID == CaretLocFileID) return true;
+ if (!End.isMacroID()) return false;
+
+ SourceLocation Backup = End;
+ End = SM->getImmediateMacroCallerLoc(End);
+ if (SM->isMacroArgExpansion(Backup))
+ Backup = SM->getImmediateExpansionRange(Backup).second;
+ else {
+ End = SM->getImmediateExpansionRange(Backup).second;
+ Backup = SM->getImmediateSpellingLoc(Backup);
+ }
+
+ EndFileID = SM->getFileID(End);
+ if (retrieveEndLocation(End,EndFileID,CaretLocFileID,SM)) return true;
+
+ End = Backup;
+ EndFileID = SM->getFileID(Backup);
+ return retrieveEndLocation(End,EndFileID,CaretLocFileID,SM);
+}
+
// Helper function to fix up source ranges. It takes in an array of ranges,
// and outputs an array of ranges where we want to draw the range highlighting
// around the location specified by CaretLoc.
@@ -323,9 +371,9 @@
const SourceManager *SM) {
FileID CaretLocFileID = SM->getFileID(CaretLoc);
- for (ArrayRef<CharSourceRange>::const_iterator I = Ranges.begin(),
- E = Ranges.end();
- I != E; ++I) {
+ for (auto I = Ranges.begin(), E = Ranges.end(); I != E; ++I) {
+ if (I->isInvalid()) continue;
+
SourceLocation Begin = I->getBegin(), End = I->getEnd();
bool IsTokenRange = I->isTokenRange();
@@ -354,27 +402,14 @@
}
}
- while (Begin.isMacroID() && BeginFileID != CaretLocFileID) {
- if (SM->isMacroArgExpansion(Begin)) {
- Begin = SM->getImmediateSpellingLoc(Begin);
- End = SM->getImmediateSpellingLoc(End);
- } else {
- Begin = SM->getImmediateExpansionRange(Begin).first;
- End = SM->getImmediateExpansionRange(End).second;
- }
- BeginFileID = SM->getFileID(Begin);
- if (BeginFileID != SM->getFileID(End)) {
- // FIXME: Ugly hack to stop a crash; this code is making bad
- // assumptions and it's too complicated for me to reason
- // about.
- Begin = End = SourceLocation();
- break;
- }
- }
+ // Do the backtracking.
+ if (!retrieveBeginLocation(Begin,BeginFileID,CaretLocFileID,SM)) continue;
+ if (!retrieveEndLocation(End,EndFileID,CaretLocFileID,SM)) continue;
// Return the spelling location of the beginning and end of the range.
Begin = SM->getSpellingLoc(Begin);
End = SM->getSpellingLoc(End);
+
SpellingRanges.push_back(CharSourceRange(SourceRange(Begin, End),
IsTokenRange));
}
@@ -417,34 +452,63 @@
SpellingRanges, None, &SM);
}
+static bool checkLocForMacroArgExpansion(SourceLocation Loc,
+ const SourceManager &SM,
+ SourceLocation &PreLoc) {
+ SourceLocation NewLoc;
+ if (SM.isMacroArgExpansion(Loc, &NewLoc)) {
+ if (PreLoc.isInvalid() || NewLoc == SourceLocation()
+ || PreLoc == NewLoc) {
+ if (PreLoc.isInvalid()) PreLoc = NewLoc;
+ return true;
+ }
+ }
+ return false;
+}
+
static bool checkRangeForMacroArgExpansion(CharSourceRange Range,
- const SourceManager &SM) {
+ const SourceManager &SM,
+ SourceLocation &Loc) {
SourceLocation BegLoc = Range.getBegin(), EndLoc = Range.getEnd();
while (BegLoc != EndLoc) {
- if (!SM.isMacroArgExpansion(BegLoc))
+ if (!checkLocForMacroArgExpansion(BegLoc, SM, Loc))
return false;
BegLoc.getLocWithOffset(1);
}
- return SM.isMacroArgExpansion(BegLoc);
+ return checkLocForMacroArgExpansion(BegLoc, SM, Loc);
}
-/// A helper function to check if the current ranges are all inside
+/// A helper function to check if the current ranges are all inside
/// the macro expansions.
+
static bool checkRangesForMacroArgExpansion(SourceLocation Loc,
ArrayRef<CharSourceRange> Ranges,
const SourceManager &SM) {
assert(Loc.isMacroID() && "Must be a macro expansion!");
SmallVector<CharSourceRange, 4> SpellingRanges;
mapDiagnosticRanges(Loc, Ranges, SpellingRanges, &SM);
- if (!SM.isMacroArgExpansion(Loc))
+ /// Count all valid ranges.
+ unsigned ValidCount = 0;
+ for (auto I:Ranges)
+ if (I.isValid()) ValidCount++;
+
+ if (ValidCount > SpellingRanges.size())
return false;
- for (auto I = SpellingRanges.begin(), E = SpellingRanges.end(); I != E; ++I)
- if (!checkRangeForMacroArgExpansion(*I, SM))
+ /// To store the source location of the argument location.
+ SourceLocation ArgumentLoc = SourceLocation();
+
+ if (!SM.isMacroArgExpansion(Loc,&ArgumentLoc))
+ return false;
+
+ for (auto I = SpellingRanges.begin(), E = SpellingRanges.end();
+ I != E; ++I) {
+ if (!checkRangeForMacroArgExpansion(*I, SM, ArgumentLoc))
return false;
+ }
return true;
}
@@ -491,7 +555,7 @@
assert(!Loc.isInvalid() && "must have a valid source location here");
}
- LocationStack.erase(LocationStack.begin(),
+ LocationStack.erase(LocationStack.begin(),
LocationStack.begin() + IgnoredEnd);
unsigned MacroDepth = LocationStack.size();
Index: lib/Basic/SourceManager.cpp
===================================================================
--- lib/Basic/SourceManager.cpp
+++ lib/Basic/SourceManager.cpp
@@ -1004,12 +1004,16 @@
return Res;
}
-bool SourceManager::isMacroArgExpansion(SourceLocation Loc) const {
+bool SourceManager::isMacroArgExpansion(SourceLocation Loc,
+ SourceLocation *NewLoc) const {
if (!Loc.isMacroID()) return false;
FileID FID = getFileID(Loc);
const SrcMgr::ExpansionInfo &Expansion = getSLocEntry(FID).getExpansion();
- return Expansion.isMacroArgExpansion();
+ if (!Expansion.isMacroArgExpansion()) return false;
+ if (NewLoc)
+ *NewLoc = Expansion.getExpansionLocStart();
+ return true;
}
bool SourceManager::isMacroBodyExpansion(SourceLocation Loc) const {
Index: include/clang/Basic/SourceManager.h
===================================================================
--- include/clang/Basic/SourceManager.h
+++ include/clang/Basic/SourceManager.h
@@ -1149,7 +1149,10 @@
/// Such source locations only appear inside of the expansion
/// locations representing where a particular function-like macro was
/// expanded.
- bool isMacroArgExpansion(SourceLocation Loc) const;
+ /// If the return value is true, the NewLoc will store
+ /// the source location of the expanded argument.
+ bool isMacroArgExpansion(SourceLocation Loc,
+ SourceLocation *NewLoc = nullptr) const;
/// \brief Tests whether the given source location represents the expansion of
/// a macro body.
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