forked from OSchip/llvm-project
Dump actual line numbers when dumping the AST to JSON.
The "line" attribute is now the physical line within the source file for the location. A "presumedLine" attribute is printed when the presumed line number does not match the given source line number. We continue to not print repeated line information in subsequent source locations, but we track presumed and actual lines separately. llvm-svn: 365919
This commit is contained in:
Aaron Ballman
parent
8b76e622b3
commit
352f0a22b8
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@ -125,7 +125,7 @@ class JSONNodeDumper
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PrintingPolicy PrintPolicy;
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const comments::CommandTraits *Traits;
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StringRef LastLocFilename;
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unsigned LastLocLine;
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unsigned LastLocLine, LastLocPresumedLine;
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using InnerAttrVisitor = ConstAttrVisitor<JSONNodeDumper>;
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using InnerCommentVisitor =
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@ -142,7 +142,7 @@ class JSONNodeDumper
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}
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// Writes the attributes of a SourceLocation object without.
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void writeBareSourceLocation(SourceLocation Loc);
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void writeBareSourceLocation(SourceLocation Loc, bool IsSpelling);
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// Writes the attributes of a SourceLocation to JSON based on its presumed
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// spelling location. If the given location represents a macro invocation,
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@ -181,7 +181,7 @@ public:
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const PrintingPolicy &PrintPolicy,
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const comments::CommandTraits *Traits)
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: NodeStreamer(OS), SM(SrcMgr), Ctx(Ctx), PrintPolicy(PrintPolicy),
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Traits(Traits), LastLocLine(0) {}
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Traits(Traits), LastLocLine(0), LastLocPresumedLine(0) {}
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void Visit(const Attr *A);
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void Visit(const Stmt *Node);
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@ -171,20 +171,28 @@ void JSONNodeDumper::Visit(const GenericSelectionExpr::ConstAssociation &A) {
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attributeOnlyIfTrue("selected", A.isSelected());
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}
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void JSONNodeDumper::writeBareSourceLocation(SourceLocation Loc) {
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void JSONNodeDumper::writeBareSourceLocation(SourceLocation Loc,
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bool IsSpelling) {
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PresumedLoc Presumed = SM.getPresumedLoc(Loc);
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unsigned ActualLine = IsSpelling ? SM.getSpellingLineNumber(Loc)
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: SM.getExpansionLineNumber(Loc);
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if (Presumed.isValid()) {
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if (LastLocFilename != Presumed.getFilename()) {
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JOS.attribute("file", Presumed.getFilename());
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JOS.attribute("line", Presumed.getLine());
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} else if (LastLocLine != Presumed.getLine())
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JOS.attribute("line", Presumed.getLine());
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JOS.attribute("line", ActualLine);
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} else if (LastLocLine != ActualLine)
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JOS.attribute("line", ActualLine);
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unsigned PresumedLine = Presumed.getLine();
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if (ActualLine != PresumedLine && LastLocPresumedLine != PresumedLine)
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JOS.attribute("presumedLine", PresumedLine);
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JOS.attribute("col", Presumed.getColumn());
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JOS.attribute("tokLen",
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Lexer::MeasureTokenLength(Loc, SM, Ctx.getLangOpts()));
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LastLocFilename = Presumed.getFilename();
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LastLocLine = Presumed.getLine();
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LastLocPresumedLine = PresumedLine;
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LastLocLine = ActualLine;
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}
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}
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@ -195,17 +203,18 @@ void JSONNodeDumper::writeSourceLocation(SourceLocation Loc) {
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if (Expansion != Spelling) {
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// If the expansion and the spelling are different, output subobjects
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// describing both locations.
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JOS.attributeObject(
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"spellingLoc", [Spelling, this] { writeBareSourceLocation(Spelling); });
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JOS.attributeObject("spellingLoc", [Spelling, this] {
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writeBareSourceLocation(Spelling, /*IsSpelling*/ true);
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});
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JOS.attributeObject("expansionLoc", [Expansion, Loc, this] {
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writeBareSourceLocation(Expansion);
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writeBareSourceLocation(Expansion, /*IsSpelling*/ false);
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// If there is a macro expansion, add extra information if the interesting
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// bit is the macro arg expansion.
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if (SM.isMacroArgExpansion(Loc))
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JOS.attribute("isMacroArgExpansion", true);
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});
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} else
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writeBareSourceLocation(Spelling);
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writeBareSourceLocation(Spelling, /*IsSpelling*/ true);
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}
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void JSONNodeDumper::writeSourceRange(SourceRange R) {
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@ -133,6 +133,20 @@ void TestMiscStmts(void) {
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({int a = 10; a;});
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}
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void TestLineNumbers(void) {
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int a;
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#define FOO(x) x
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#line 100000
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int b;
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#line 200000
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FOO(1);
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#undef FOO
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}
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// NOTE: CHECK lines have been autogenerated by gen_ast_dump_json_test.py
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// using --filters=VarDecl,CompoundStmt
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@ -4777,3 +4791,136 @@ void TestMiscStmts(void) {
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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// CHECK-NEXT: }
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// CHECK: "kind": "CompoundStmt",
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// CHECK-NEXT: "range": {
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// CHECK-NEXT: "begin": {
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// CHECK-NEXT: "line": 136,
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// CHECK-NEXT: "col": 28,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: },
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// CHECK-NEXT: "end": {
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// CHECK-NEXT: "line": 148,
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// CHECK-NEXT: "presumedLine": 200003,
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// CHECK-NEXT: "col": 1,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "inner": [
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// CHECK-NEXT: {
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// CHECK-NEXT: "id": "0x{{.*}}",
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// CHECK-NEXT: "kind": "DeclStmt",
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// CHECK-NEXT: "range": {
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// CHECK-NEXT: "begin": {
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// CHECK-NEXT: "line": 137,
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// CHECK-NEXT: "col": 3,
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// CHECK-NEXT: "tokLen": 3
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// CHECK-NEXT: },
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// CHECK-NEXT: "end": {
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// CHECK-NEXT: "col": 8,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "inner": [
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// CHECK-NEXT: {
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// CHECK-NEXT: "id": "0x{{.*}}",
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// CHECK-NEXT: "kind": "VarDecl",
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// CHECK-NEXT: "loc": {
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// CHECK-NEXT: "col": 7,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: },
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// CHECK-NEXT: "range": {
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// CHECK-NEXT: "begin": {
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// CHECK-NEXT: "col": 3,
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// CHECK-NEXT: "tokLen": 3
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// CHECK-NEXT: },
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// CHECK-NEXT: "end": {
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// CHECK-NEXT: "col": 7,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "name": "a",
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// CHECK-NEXT: "type": {
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// CHECK-NEXT: "qualType": "int"
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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// CHECK-NEXT: },
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// CHECK-NEXT: {
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// CHECK-NEXT: "id": "0x{{.*}}",
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// CHECK-NEXT: "kind": "DeclStmt",
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// CHECK-NEXT: "range": {
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// CHECK-NEXT: "begin": {
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// CHECK-NEXT: "line": 142,
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// CHECK-NEXT: "presumedLine": 100000,
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// CHECK-NEXT: "col": 3,
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// CHECK-NEXT: "tokLen": 3
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// CHECK-NEXT: },
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// CHECK-NEXT: "end": {
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// CHECK-NEXT: "col": 8,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "inner": [
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// CHECK-NEXT: {
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// CHECK-NEXT: "id": "0x{{.*}}",
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// CHECK-NEXT: "kind": "VarDecl",
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// CHECK-NEXT: "loc": {
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// CHECK-NEXT: "col": 7,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: },
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// CHECK-NEXT: "range": {
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// CHECK-NEXT: "begin": {
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// CHECK-NEXT: "col": 3,
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// CHECK-NEXT: "tokLen": 3
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// CHECK-NEXT: },
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// CHECK-NEXT: "end": {
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// CHECK-NEXT: "col": 7,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "name": "b",
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// CHECK-NEXT: "type": {
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// CHECK-NEXT: "qualType": "int"
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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// CHECK-NEXT: },
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// CHECK-NEXT: {
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// CHECK-NEXT: "id": "0x{{.*}}",
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// CHECK-NEXT: "kind": "IntegerLiteral",
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// CHECK-NEXT: "range": {
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// CHECK-NEXT: "begin": {
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// CHECK-NEXT: "spellingLoc": {
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// CHECK-NEXT: "line": 145,
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// CHECK-NEXT: "presumedLine": 200000,
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// CHECK-NEXT: "col": 7,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: },
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// CHECK-NEXT: "expansionLoc": {
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// CHECK-NEXT: "col": 3,
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// CHECK-NEXT: "tokLen": 3,
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// CHECK-NEXT: "isMacroArgExpansion": true
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "end": {
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// CHECK-NEXT: "spellingLoc": {
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// CHECK-NEXT: "col": 7,
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// CHECK-NEXT: "tokLen": 1
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// CHECK-NEXT: },
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// CHECK-NEXT: "expansionLoc": {
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// CHECK-NEXT: "col": 3,
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// CHECK-NEXT: "tokLen": 3,
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// CHECK-NEXT: "isMacroArgExpansion": true
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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// CHECK-NEXT: },
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// CHECK-NEXT: "type": {
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// CHECK-NEXT: "qualType": "int"
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// CHECK-NEXT: },
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// CHECK-NEXT: "valueCategory": "rvalue",
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// CHECK-NEXT: "value": "1"
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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// CHECK-NEXT: }
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