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Added 'writeJson' to write_stream.zig:

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Small addition to make writing a json value easier
This commit is contained in:
Sebastian Keller 2019-10-24 14:23:36 +02:00
parent 345042ecbc
commit b82b6a7093
1 changed files with 28 additions and 0 deletions
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28
lib/std/json/write_stream.zig
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@ -197,6 +197,34 @@ pub fn WriteStream(comptime OutStream: type, comptime max_depth: usize) type {
try self.stream.writeByte('"');
}
/// Writes the complete json into the output stream
pub fn writeJson(self: *Self, json: std.json.Value) std.os.WriteError!void {
switch (json) {
std.json.Value.Null => try self.emitNull(),
std.json.Value.Bool => |inner| try self.emitBool(inner),
std.json.Value.Integer => |inner| try self.emitNumber(inner),
std.json.Value.Float => |inner| try self.emitNumber(inner),
std.json.Value.String => |inner| try self.emitString(inner),
std.json.Value.Array => |inner| {
try self.beginArray();
for (inner.toSliceConst()) |elem| {
try self.arrayElem();
try self.writeJson(elem);
}
try self.endArray();
},
std.json.Value.Object => |inner| {
try self.beginObject();
var it = inner.iterator();
while (it.next()) |entry| {
try self.objectField(entry.key);
try self.writeJson(entry.value);
}
try self.endObject();
},
}
}
fn indent(self: *Self) !void {
assert(self.state_index >= 1);
try self.stream.write(self.newline);