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72
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1 module dmd.FileExp;
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2
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114
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3 import dmd.common;
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72
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4 import dmd.Expression;
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163
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5 import dmd.File;
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72
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6 import dmd.UnaExp;
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163
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7 import dmd.StringExp;
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8 import dmd.WANT;
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9 import dmd.Global;
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10 import dmd.FileName;
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72
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11 import dmd.OutBuffer;
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12 import dmd.Loc;
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13 import dmd.Scope;
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14 import dmd.HdrGenState;
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15 import dmd.TOK;
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16
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163
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17 import core.stdc.stdio;
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18
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0
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19 class FileExp : UnaExp
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20 {
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21 this(Loc loc, Expression e)
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22 {
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178
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23 register();
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162
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24 super(loc, TOKmixin, FileExp.sizeof, e);
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0
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25 }
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26
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72
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27 override Expression semantic(Scope sc)
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0
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28 {
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163
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29 StringExp se;
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30
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31 version (LOGSEMANTIC) {
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32 printf("FileExp.semantic('%.*s')\n", toChars());
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33 }
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34 UnaExp.semantic(sc);
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35 e1 = resolveProperties(sc, e1);
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36 e1 = e1.optimize(WANTvalue);
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37 if (e1.op != TOKstring)
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38 {
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39 error("file name argument must be a string, not (%s)", e1.toChars());
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40 goto Lerror;
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41 }
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42 se = cast(StringExp)e1;
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43 se = se.toUTF8(sc);
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44
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45 string name = (cast(immutable(char)*)se.string_)[0..se.len];
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46
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47 if (!global.params.fileImppath)
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48 {
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49 error("need -Jpath switch to import text file %s", name);
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50 goto Lerror;
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51 }
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52
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53 if (name != FileName.name(name))
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54 {
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55 error("use -Jpath switch to provide path for filename %s", name);
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56 goto Lerror;
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57 }
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58
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59 name = FileName.searchPath(global.filePath, name, 0);
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60 if (!name)
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61 {
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62 error("file %s cannot be found, check -Jpath", se.toChars());
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63 goto Lerror;
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64 }
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65
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66 if (global.params.verbose)
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67 printf("file %s\t(%s)\n", cast(char*)se.string_, name);
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68
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69 {
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70 scope File f = new File(name);
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71 if (f.read())
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72 {
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73 error("cannot read file %s", f.toChars());
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74 goto Lerror;
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75 }
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76 else
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77 {
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78 f.ref_ = 1;
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79 se = new StringExp(loc, (cast(immutable(char)*)f.buffer)[0..f.len]);
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80 }
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81 }
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82 Lret:
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83 return se.semantic(sc);
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84
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85 Lerror:
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86 se = new StringExp(loc, "");
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87 goto Lret;
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0
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88 }
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89
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72
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90 override void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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0
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91 {
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92 assert(false);
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93 }
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94 }
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95
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