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1 module dmd.expression.ArrayLength;
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2
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3 import dmd.Type;
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4 import dmd.Expression;
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5 import dmd.StringExp;
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6 import dmd.IntegerExp;
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7 import dmd.ArrayLiteralExp;
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8 import dmd.Loc;
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9 import dmd.TOK;
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10 import dmd.AssocArrayLiteralExp;
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11 import dmd.GlobalExpressions;
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12
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13 Expression ArrayLength(Type type, Expression e1)
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14 {
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15 Expression e;
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16 Loc loc = e1.loc;
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17
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18 if (e1.op == TOKstring)
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19 {
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20 StringExp es1 = cast(StringExp)e1;
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21 e = new IntegerExp(loc, es1.len, type);
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22 }
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23 else if (e1.op == TOKarrayliteral)
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24 {
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25 ArrayLiteralExp ale = cast(ArrayLiteralExp)e1;
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26 size_t dim = ale.elements ? ale.elements.dim : 0;
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27 e = new IntegerExp(loc, dim, type);
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28 }
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29 else if (e1.op == TOKassocarrayliteral)
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30 {
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31 AssocArrayLiteralExp ale = cast(AssocArrayLiteralExp)e1;
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32 size_t dim = ale.keys.dim;
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33 e = new IntegerExp(loc, dim, type);
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34 }
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35 else
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36 e = EXP_CANT_INTERPRET;
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37
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38 return e;
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39 } |
