package ast import ( "fmt" "path/filepath" "github.com/elliotchance/c2go/util" ) // Position is type of position in source code type Position struct { File string // The relative or absolute file path. Line int // Start line LineEnd int // End line Column int // Start column ColumnEnd int // End column // This is the original string that was converted. This is used for // debugging. We could derive this value from the other properties to save // on a bit of memory, but let worry about that later. StringValue string } // GetSimpleLocation - return a string like : "file:line" in // according to position // Example : " /tmp/1.c:200 " func (p Position) GetSimpleLocation() (loc string) { file := p.File if f, err := filepath.Abs(p.File); err != nil { file = f } return fmt.Sprintf(" %s:%d ", file, p.Line) } func NewPositionFromString(s string) Position { re := util.GetRegex(`||`) if re.MatchString(s) || s == "" { return Position{} } re = util.GetRegex(`^col:(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Column: util.Atoi(groups[1]), } } re = util.GetRegex(`^col:(\d+), col:(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Column: util.Atoi(groups[1]), ColumnEnd: util.Atoi(groups[2]), } } re = util.GetRegex(`^line:(\d+), line:(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Line: util.Atoi(groups[1]), LineEnd: util.Atoi(groups[2]), } } re = util.GetRegex(`^col:(\d+), line:(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Column: util.Atoi(groups[1]), Line: util.Atoi(groups[2]), } } re = util.GetRegex(`^line:(\d+):(\d+), line:(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Line: util.Atoi(groups[1]), Column: util.Atoi(groups[2]), LineEnd: util.Atoi(groups[3]), ColumnEnd: util.Atoi(groups[4]), } } re = util.GetRegex(`^col:(\d+), line:(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Column: util.Atoi(groups[1]), LineEnd: util.Atoi(groups[2]), ColumnEnd: util.Atoi(groups[3]), } } re = util.GetRegex(`^line:(\d+):(\d+), col:(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Line: util.Atoi(groups[1]), Column: util.Atoi(groups[2]), ColumnEnd: util.Atoi(groups[3]), } } re = util.GetRegex(`^line:(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Line: util.Atoi(groups[1]), Column: util.Atoi(groups[2]), } } // This must be below all of the others. re = util.GetRegex(`^([^:]+):(\d+):(\d+), col:(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, File: groups[1], Line: util.Atoi(groups[2]), Column: util.Atoi(groups[3]), ColumnEnd: util.Atoi(groups[4]), } } re = util.GetRegex(`^([^:]+):(\d+):(\d+), line:(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, File: groups[1], Line: util.Atoi(groups[2]), Column: util.Atoi(groups[3]), LineEnd: util.Atoi(groups[4]), ColumnEnd: util.Atoi(groups[5]), } } re = util.GetRegex(`^([^:]+):(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, File: groups[1], Line: util.Atoi(groups[2]), Column: util.Atoi(groups[3]), } } re = util.GetRegex(`^([^:]+):(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, File: groups[1], Line: util.Atoi(groups[2]), Column: util.Atoi(groups[3]), } } re = util.GetRegex(`^col:(\d+), ([^:]+):(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, Column: util.Atoi(groups[1]), } } re = util.GetRegex(`^([^:]+):(\d+):(\d+), ([^:]+):(\d+):(\d+)$`) if groups := re.FindStringSubmatch(s); len(groups) > 0 { return Position{ StringValue: s, File: groups[1], Line: util.Atoi(groups[2]), Column: util.Atoi(groups[3]), LineEnd: util.Atoi(groups[5]), ColumnEnd: util.Atoi(groups[6]), } } panic("unable to understand position '" + s + "'") } func mergePositions(p1, p2 Position) Position { if p2.File != "" { p1.File = p2.File p1.Line = 0 p1.LineEnd = 0 p1.Column = 0 p1.ColumnEnd = 0 } if p2.Line != 0 { p1.Line = p2.Line p1.LineEnd = 0 } if p2.LineEnd != 0 { p1.LineEnd = p2.LineEnd } if p2.Column != 0 { p1.Column = p2.Column p1.ColumnEnd = 0 } if p2.ColumnEnd != 0 { p1.ColumnEnd = p2.ColumnEnd } return p1 } var pos Position // PositionBuiltIn - default value for fix position var PositionBuiltIn = "" func FixPositions(nodes []Node) { pos = Position{File: PositionBuiltIn} fixPositions(nodes) } func fixPositions(nodes []Node) { for _, node := range nodes { if node != nil { pos = mergePositions(pos, node.Position()) setPosition(node, pos) fixPositions(node.Children()) } } } func setPosition(node Node, position Position) { switch n := node.(type) { case *AlignedAttr: n.Pos = position case *AllocSizeAttr: n.Pos = position case *AlwaysInlineAttr: n.Pos = position case *ArraySubscriptExpr: n.Pos = position case *AsmLabelAttr: n.Pos = position case *AvailabilityAttr: n.Pos = position case *BinaryOperator: n.Pos = position case *BlockCommandComment: n.Pos = position case *BreakStmt: n.Pos = position case *CallExpr: n.Pos = position case *CaseStmt: n.Pos = position case *CharacterLiteral: n.Pos = position case *CompoundStmt: n.Pos = position case *ConditionalOperator: n.Pos = position case *ConstAttr: n.Pos = position case *ContinueStmt: n.Pos = position case *CompoundAssignOperator: n.Pos = position case *CompoundLiteralExpr: n.Pos = position case *CStyleCastExpr: n.Pos = position case *DeclRefExpr: n.Pos = position case *DeclStmt: n.Pos = position case *DefaultStmt: n.Pos = position case *DeprecatedAttr: n.Pos = position case *DisableTailCallsAttr: n.Pos = position case *DoStmt: n.Pos = position case *EmptyDecl: n.Pos = position case *EnumConstantDecl: n.Pos = position case *EnumDecl: n.Pos = position case *FieldDecl: n.Pos = position case *FloatingLiteral: n.Pos = position case *FormatAttr: n.Pos = position case *FormatArgAttr: n.Pos = position case *FullComment: n.Pos = position case *FunctionDecl: n.Pos = position case *ForStmt: n.Pos = position case *GCCAsmStmt: n.Pos = position case *HTMLStartTagComment: n.Pos = position case *HTMLEndTagComment: n.Pos = position case *GotoStmt: n.Pos = position case *IfStmt: n.Pos = position case *ImplicitCastExpr: n.Pos = position case *ImplicitValueInitExpr: n.Pos = position case *IndirectFieldDecl: n.Pos = position case *InitListExpr: n.Pos = position case *InlineCommandComment: n.Pos = position case *IntegerLiteral: n.Pos = position case *LabelStmt: n.Pos = position case *MallocAttr: n.Pos = position case *MaxFieldAlignmentAttr: n.Pos = position case *MemberExpr: n.Pos = position case *ModeAttr: n.Pos = position case *NoInlineAttr: n.Pos = position case *NoThrowAttr: n.Pos = position case *NotTailCalledAttr: n.Pos = position case *NonNullAttr: n.Pos = position case *OffsetOfExpr: n.Pos = position case *PackedAttr: n.Pos = position case *ParagraphComment: n.Pos = position case *ParamCommandComment: n.Pos = position case *ParenExpr: n.Pos = position case *ParmVarDecl: n.Pos = position case *PredefinedExpr: n.Pos = position case *PureAttr: n.Pos = position case *RecordDecl: n.Pos = position case *RestrictAttr: n.Pos = position case *ReturnStmt: n.Pos = position case *ReturnsTwiceAttr: n.Pos = position case *SentinelAttr: n.Pos = position case *StmtExpr: n.Pos = position case *StringLiteral: n.Pos = position case *SwitchStmt: n.Pos = position case *TextComment: n.Pos = position case *TransparentUnionAttr: n.Pos = position case *TypedefDecl: n.Pos = position case *UnaryExprOrTypeTraitExpr: n.Pos = position case *UnaryOperator: n.Pos = position case *UnusedAttr: n.Pos = position case *VAArgExpr: n.Pos = position case *VarDecl: n.Pos = position case *VerbatimBlockComment: n.Pos = position case *VerbatimBlockLineComment: n.Pos = position case *VerbatimLineComment: n.Pos = position case *VisibilityAttr: n.Pos = position case *WarnUnusedResultAttr: n.Pos = position case *WeakAttr: n.Pos = position case *WhileStmt: n.Pos = position case *TypedefType, *Typedef, *TranslationUnitDecl, *RecordType, *Record, *QualType, *PointerType, *DecayedType, *ParenType, *IncompleteArrayType, *FunctionProtoType, *EnumType, *Enum, *ElaboratedType, *ConstantArrayType, *BuiltinType, *ArrayFiller, *Field: // These do not have positions so they can be ignored. default: panic(fmt.Sprintf("unknown node type: %+#v", node)) } }