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Package: AbstractSymbol
AbstractSymbol
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| AbstractSymbol(Position) |
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| getPosition() |
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| hashCode() |
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| isPackageDescriptionFileSymbol() |
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| isPathSymbol() |
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| isRowEndSymbol() |
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| isValueSymbol() |
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| toCommentSymbol() |
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| toOptionSymbol() |
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| toPackageDescriptionFileSymbol() |
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| toPathSymbol() |
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| toValueSymbol() |
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| toVariableSymbol() |
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Coverage
1: package symbols;
2:
3: import model.Position;
4: import scanner.ScannerConstants;
5:
6: /**
7: * This abstract class represents the symbols.
8: *
9: * @author HFW410
10: *
11: */
12: public class AbstractSymbol {
13:
14: /**
15: * This attribute is the position of the symbol.
16: */
17: private final transient Position position;
18:
19: /**
20: * This constructor instantiate the Symbol.
21: *
22: * @param position
23: * (row and column) of the data in the datastream. The position of the first sign of
24: * the symbol inclusive of the \# or ' etc.
25: */
26: protected AbstractSymbol(final Position position) {
27: super();
28: this.position = position;
29: }
30:
31: /**
32: *
33: * @return the position
34: */
35: public Position getPosition() {
36: return this.position;
37: }
38:
39: /**
40: *
41: * @return true, if the Symbol is a value symbol.
42: */
43: public Boolean isValueSymbol() {
44: return Boolean.FALSE;
45: }
46:
47: /**
48: *
49: * @return true, if the Symbol is a path symbol.
50: */
51: public Boolean isPathSymbol() {
52: return Boolean.FALSE;
53: }
54:
55: /**
56: *
57: * @return true, if the Symbol is a row end symbol.
58: */
59: public Boolean isRowEndSymbol() {
60: return Boolean.FALSE;
61: }
62:
63: /**
64: *
65: * @return true, if the Symbol is a package description file symbol.
66: */
67: public Boolean isPackageDescriptionFileSymbol() {
68: return Boolean.FALSE;
69: }
70:
71: /**
72: * @return an error, if the symbol is not a variable symbol
73: */
74: public VariableSymbol toVariableSymbol() {
75: throw new WrongTypeError(ScannerConstants.WTE_VARIABLE);
76: }
77:
78: /**
79: * @return an error, if the symbol is not a value symbol
80: */
81: public ValueSymbol toValueSymbol() {
82: throw new WrongTypeError(ScannerConstants.WTE_VALUE);
83: }
84:
85: /**
86: * @return an error, if the symbol is not a path symbol
87: */
88: public PathSymbol toPathSymbol() {
89: throw new WrongTypeError(ScannerConstants.WTE_PATH);
90: }
91:
92: /**
93: * @return an error, if the symbol is not an option symbol
94: */
95: public OptionSymbol toOptionSymbol() {
96: throw new WrongTypeError(ScannerConstants.WTE_OPTION);
97: }
98:
99: /**
100: * @return an error, if the symbol is not a comment symbol
101: */
102: public CommentSymbol toCommentSymbol() {
103: throw new WrongTypeError(ScannerConstants.WTE_COMMENT);
104: }
105:
106: /**
107: *
108: * @return a PackageDescriptionFileSymbol or an error, if the symbol is not a package
109: * description file symbol.
110: */
111: public PackageDescriptionFileSymbol toPackageDescriptionFileSymbol() {
112: throw new WrongTypeError(ScannerConstants.WTE_PACKAGESYMBOL);
113: }
114:
115: @Override
116: public int hashCode() {
117: return this.position.hashCode();
118: }
119:
120: @Override
121: public boolean equals(final Object obj) {
122:• return obj instanceof AbstractSymbol
123:• && ((AbstractSymbol) obj).getPosition().equals(this.getPosition());
124: }
125:
126: }