38f2ea34f4
This is in preparation for making some of Value's members into refcounted ('smart') pointers.
Change-Id: Ibc54e23ac35766a2fd4e14871c9a7c936a603778
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1743
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
121 lines
2.3 KiB
C++
121 lines
2.3 KiB
C++
#include "libexpr/value.hh"
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#include <glog/logging.h>
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namespace nix {
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Value::Value(const Value& copy) { *this = copy; }
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Value::Value(Value&& move) { *this = move; }
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Value& Value::operator=(const Value& copy) {
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if (type != copy.type) {
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memset(this, 0, sizeof(*this));
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}
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type = copy.type;
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switch (type) {
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case tInt:
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integer = copy.integer;
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break;
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case tBool:
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boolean = copy.boolean;
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break;
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case tString:
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string = copy.string;
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break;
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case tPath:
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path = copy.path;
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break;
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case tNull:
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/* no fields */
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break;
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case tAttrs:
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attrs = copy.attrs;
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break;
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case tList:
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list = copy.list;
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break;
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case tThunk:
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thunk = copy.thunk;
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break;
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case tApp:
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app = copy.app;
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break;
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case tLambda:
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lambda = copy.lambda;
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break;
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case tBlackhole:
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/* no fields */
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break;
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case tPrimOp:
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primOp = copy.primOp;
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break;
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case tPrimOpApp:
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primOpApp = copy.primOpApp;
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break;
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case _reserved1:
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LOG(FATAL) << "attempted to assign a tExternal value";
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break;
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case tFloat:
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fpoint = copy.fpoint;
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break;
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}
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return *this;
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}
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Value& Value::operator=(Value&& move) {
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if (type != move.type) {
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memset(this, 0, sizeof(*this));
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}
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type = move.type;
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switch (type) {
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case tInt:
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integer = move.integer;
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break;
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case tBool:
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boolean = move.boolean;
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break;
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case tString:
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string = move.string;
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break;
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case tPath:
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path = move.path;
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break;
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case tNull:
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/* no fields */
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break;
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case tAttrs:
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attrs = move.attrs;
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break;
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case tList:
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list = move.list;
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break;
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case tThunk:
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thunk = move.thunk;
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break;
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case tApp:
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app = move.app;
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break;
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case tLambda:
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lambda = move.lambda;
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break;
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case tBlackhole:
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/* no fields */
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break;
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case tPrimOp:
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primOp = move.primOp;
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break;
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case tPrimOpApp:
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primOpApp = move.primOpApp;
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break;
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case _reserved1:
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LOG(FATAL) << "attempted to assign a tExternal value";
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break;
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case tFloat:
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fpoint = move.fpoint;
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break;
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}
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return *this;
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}
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} // namespace nix
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