| 261 | } // namespace |
| 262 | |
| 263 | static RequireCompositionResult composeRequirement(const RequireEx& a, const RequireEx& b) |
| 264 | { |
| 265 | assert(a.uid == b.uid); |
| 266 | RequireEx out; |
| 267 | out.uid = a.uid; |
| 268 | out.indexOfFirstDependee = std::min(a.indexOfFirstDependee, b.indexOfFirstDependee); |
| 269 | if (a.equalsVersion.isEmpty()) { |
| 270 | out.equalsVersion = b.equalsVersion; |
| 271 | } else if (b.equalsVersion.isEmpty()) { |
| 272 | out.equalsVersion = a.equalsVersion; |
| 273 | } else if (a.equalsVersion == b.equalsVersion) { |
| 274 | out.equalsVersion = a.equalsVersion; |
| 275 | } else { |
| 276 | // FIXME: mark error as explicit version conflict |
| 277 | return { false, out }; |
| 278 | } |
| 279 | |
| 280 | if (a.suggests.isEmpty()) { |
| 281 | out.suggests = b.suggests; |
| 282 | } else if (b.suggests.isEmpty()) { |
| 283 | out.suggests = a.suggests; |
| 284 | } else { |
| 285 | Version aVer(a.suggests); |
| 286 | Version bVer(b.suggests); |
| 287 | out.suggests = (aVer < bVer ? b.suggests : a.suggests); |
| 288 | } |
| 289 | return { true, out }; |
| 290 | } |
| 291 | |
| 292 | // gather the requirements from all components, finding any obvious conflicts |
| 293 | static bool gatherRequirementsFromComponents(const ComponentContainer& input, RequireExSet& output) |
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