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Added accessor in Java to get vectors as ByteBuffers.

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Also cleaned up ByteBuffer usage in general: ByteBuffer.position
now universally indicates the start of a ByteBuffer.

Change-Id: Ic4bfb98f9df9501b8fc82de2c45db7d7311135ac
Tested: on Linux.
This commit is contained in:
Wouter van Oortmerssen
2014-09-10 16:38:37 -07:00
parent 32f2c1c3b9
commit 858e9961e2
7 changed files with 93 additions and 33 deletions
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17
src/idl_gen_java.cpp
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@@ -174,16 +174,16 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
// of a FlatBuffer
code += " public static " + struct_def.name + " getRootAs";
code += struct_def.name;
code += "(ByteBuffer _bb, int offset) { ";
code += "(ByteBuffer _bb) { ";
code += "_bb.order(ByteOrder.LITTLE_ENDIAN); ";
code += "return (new " + struct_def.name;
code += "()).__init(_bb.getInt(offset) + offset, _bb); }\n";
code += "()).__init(_bb.getInt(_bb.position()) + _bb.position(), _bb); }\n";
if (parser.root_struct_def == &struct_def) {
if (parser.file_identifier_.length()) {
// Check if a buffer has the identifier.
code += " public static boolean " + struct_def.name;
code += "BufferHasIdentifier(ByteBuffer _bb, int offset) { return ";
code += "__has_identifier(_bb, offset, \"" + parser.file_identifier_;
code += "BufferHasIdentifier(ByteBuffer _bb) { return ";
code += "__has_identifier(_bb, \"" + parser.file_identifier_;
code += "\"); }\n";
}
}
@@ -285,6 +285,15 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
code += offset_prefix;
code += "__vector_len(o) : 0; }\n";
}
if (field.value.type.base_type == BASE_TYPE_VECTOR ||
field.value.type.base_type == BASE_TYPE_STRING) {
code += " public ByteBuffer " + MakeCamel(field.name, false);
code += "AsByteBuffer() { return __vector_as_bytebuffer(";
code += NumToString(field.value.offset) + ", ";
code += NumToString(field.value.type.base_type == BASE_TYPE_STRING ? 1 :
InlineSize(field.value.type.VectorType()));
code += "); }\n";
}
}
code += "\n";
if (struct_def.fixed) {