bind/objc: add read/write Int and BOOL values.

Change-Id: I9e1d0c62acfa43cfc1b0dd79ff25b89b43a891cb
Reviewed-on: https://go-review.googlesource.com/10710
Reviewed-by: David Crawshaw <crawshaw@golang.org>

bind/objc/seq.h

@@ -37,6 +37,8 @@ typedef struct GoSeq {
 // go_seq_free releases resources of the GoSeq.
 extern void go_seq_free(GoSeq *seq);
 
+extern BOOL go_seq_readBool(GoSeq *seq);
+extern int go_seq_readInt(GoSeq *seq);
 extern int8_t go_seq_readInt8(GoSeq *seq);
 extern int16_t go_seq_readInt16(GoSeq *seq);
 extern int32_t go_seq_readInt32(GoSeq *seq);
@@ -47,6 +49,8 @@ extern GoSeqRef *go_seq_readRef(GoSeq *seq);
 extern NSString *go_seq_readUTF8(GoSeq *seq);
 extern NSData *go_seq_readByteArray(GoSeq *seq);
 
+extern void go_seq_writeBool(GoSeq *seq, BOOL v);
+extern void go_seq_writeInt(GoSeq *seq, int v);
 extern void go_seq_writeInt8(GoSeq *seq, int8_t v);
 extern void go_seq_writeInt16(GoSeq *seq, int16_t v);
 extern void go_seq_writeInt32(GoSeq *seq, int32_t v);

bind/objc/seq_darwin.m

@@ -90,6 +90,24 @@ void go_seq_free(GoSeq *m) {
 #define MEM_READ(seq, ty) ((ty *)mem_read(seq, sizeof(ty), sizeof(ty)))
 #define MEM_WRITE(seq, ty) (*(ty *)mem_write(seq, sizeof(ty), sizeof(ty)))
 
+int go_seq_readInt(GoSeq *seq) {
+  int64_t v = go_seq_readInt64(seq);
+  return v;  // Assume that Go-side used WriteInt to encode 'int' value.
+}
+
+void go_seq_writeInt(GoSeq *seq, int v) {
+  go_seq_writeInt64(seq, v);
+}
+
+BOOL go_seq_readBool(GoSeq *seq) {
+  int8_t v = go_seq_readInt8(seq);
+  return v ? YES : NO;
+}
+
+void go_seq_writeBool(GoSeq *seq, BOOL v) {
+  go_seq_writeInt8(seq, v ? 1 : 0);
+}
+
 int8_t go_seq_readInt8(GoSeq *seq) {
   int8_t *v = MEM_READ(seq, int8_t);
   return v == NULL ? 0 : *v;