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getWritableStructPointer

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This commit is contained in:
David Renshaw 2014-06-05 18:25:29 -04:00
parent bbd0333077
commit d1e938130f
4 changed files with 27 additions and 6 deletions
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3
compiler/src/main/cpp/capnpc-java.c++
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@ -929,7 +929,8 @@ private:
spaces(indent), " }\n", spaces(indent), " }\n",
spaces(indent), " public final ", type, ".Builder get", titleCase, "() {\n", spaces(indent), " public final ", type, ".Builder get", titleCase, "() {\n",
spaces(indent), " return ", type, spaces(indent), " return ", type,
".Builder.factory.fromStructBuilder(_builder.getPointerField(", offset, ").getStruct());\n", ".Builder.factory.fromStructBuilder(_builder.getPointerField(", offset, ").getStruct(",
type, ".STRUCT_SIZE", "));\n",
spaces(indent), " }\n", spaces(indent), " }\n",
spaces(indent), " public final void set", titleCase, "(", type, ".Reader value) {\n", spaces(indent), " public final void set", titleCase, "(", type, ".Reader value) {\n",
unionDiscrim.set, unionDiscrim.set,

2
compiler/src/test/scala/org/capnproto/TestUtil.scala
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@ -56,7 +56,7 @@ object TestUtil {
//assert(builder.getTextField().toString() == "foo"); //assert(builder.getTextField().toString() == "foo");
{ {
// val subBuilder = builder.getStructField(); val subBuilder = builder.getStructField();
} }
} }

5
runtime/src/main/java/org/capnproto/PointerBuilder.java
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@ -17,9 +17,8 @@ public final class PointerBuilder {
return this.segment.buffer.getLong(this.pointer) == 0; return this.segment.buffer.getLong(this.pointer) == 0;
} }
public final StructBuilder getStruct() { public final StructBuilder getStruct(StructSize size) {
throw new Error(); return WireHelpers.getWritableStructPointer(this.pointer, this.segment, size);
// return WireHelpers.getWritableStructPointer();
} }
public final StructBuilder initStruct(StructSize size) { public final StructBuilder initStruct(StructSize size) {

21
runtime/src/main/java/org/capnproto/WireHelpers.java
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@ -37,7 +37,28 @@ final class WireHelpers {
public static StructBuilder getWritableStructPointer(int refOffset, public static StructBuilder getWritableStructPointer(int refOffset,
SegmentBuilder segment, SegmentBuilder segment,
StructSize size) { StructSize size) {
long ref = WirePointer.get(segment.buffer, refOffset);
int target = WirePointer.target(refOffset, ref);
if (WirePointer.isNull(ref)) {
return initStructPointer(refOffset, segment, size);
}
long oldRef = ref;
SegmentBuilder oldSegment = segment;
// TODO follow fars.
int oldPtrOffset = target;
short oldDataSize = StructPointer.dataSize(WirePointer.structPointer(oldRef));
short oldPointerCount = StructPointer.ptrCount(WirePointer.structPointer(oldRef));
int oldPointerSectionOffset = oldPtrOffset + oldDataSize;
if (oldDataSize < size.data || oldPointerCount < size.pointers) {
throw new Error("unimplemented"); throw new Error("unimplemented");
} else {
return new StructBuilder(oldSegment, oldPtrOffset * 8,
oldPointerSectionOffset, oldDataSize * 64,
oldPointerCount, (byte)0);
}
} }
public static ListBuilder initListPointer(int refOffset, public static ListBuilder initListPointer(int refOffset,