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@ -58,8 +58,50 @@ NSData *GPBEmptyNSData(void) { |
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return defaultNSData; |
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} |
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// -- About Version Checks -- |
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// There's actually 3 places these checks all come into play: |
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// 1. When the generated source is compile into .o files, the header check |
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// happens. This is checking the protoc used matches the library being used |
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// when making the .o. |
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// 2. Every place a generated proto header is included in a developer's code, |
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// the header check comes into play again. But this time it is checking that |
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// the current library headers being used still support/match the ones for |
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// the generated code. |
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// 3. At runtime the final check here (GPBCheckRuntimeVersionsInternal), is |
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// called from the generated code passing in values captured when the |
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// generated code's .o was made. This checks that at runtime the generated |
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// code and runtime library match. |
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void GPBCheckRuntimeVersionSupport(int32_t objcRuntimeVersion) { |
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// NOTE: This is passing the value captured in the compiled code to check |
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// against the values captured when the runtime support was compiled. This |
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// ensures the library code isn't in a different framework/library that |
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// was generated with a non matching version. |
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if (GOOGLE_PROTOBUF_OBJC_VERSION < objcRuntimeVersion) { |
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// Library is too old for headers. |
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[NSException raise:NSInternalInconsistencyException |
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format:@"Linked to ProtocolBuffer runtime version %d," |
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@" but code compiled needing atleast %d!", |
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GOOGLE_PROTOBUF_OBJC_VERSION, objcRuntimeVersion]; |
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} |
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if (objcRuntimeVersion < GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION) { |
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// Headers are too old for library. |
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[NSException raise:NSInternalInconsistencyException |
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format:@"Proto generation source compiled against runtime" |
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@" version %d, but this version of the runtime only" |
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@" supports back to %d!", |
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objcRuntimeVersion, |
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GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION]; |
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} |
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} |
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// This api is no longer used for version checks. 30001 is the last version |
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// using this old versioning model. When that support is removed, this function |
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// can be removed (along with the declaration in GPBUtilities_PackagePrivate.h). |
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void GPBCheckRuntimeVersionInternal(int32_t version) { |
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if (version != GOOGLE_PROTOBUF_OBJC_GEN_VERSION) { |
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GPBInternalCompileAssert(GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION == 30001, |
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time_to_remove_this_old_version_shim); |
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if (version != GOOGLE_PROTOBUF_OBJC_MIN_SUPPORTED_VERSION) { |
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[NSException raise:NSInternalInconsistencyException |
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format:@"Linked to ProtocolBuffer runtime version %d," |
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@" but code compiled with version %d!", |
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Thomas Van Lenten
9 years ago
committed by
GitHub