81 lines
1.9 KiB
Zig
81 lines
1.9 KiB
Zig
const std = @import("std");
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const Allocator = std.mem.Allocator;
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const json = std.json;
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pub fn getInteger(object: json.ObjectMap, name: []const u8) ?i64 {
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const value = object.get(name);
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if (value == null) {
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return null;
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}
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if (value.? != json.Value.integer) {
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return null;
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}
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return value.?.integer;
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}
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pub fn getIntegerRequired(object: json.ObjectMap, name: []const u8) !i64 {
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return getInteger(object, name) orelse return error.MissingProperty;
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}
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pub fn asObject(value: json.Value) ?json.ObjectMap {
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if (value != json.Value.object) {
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return null;
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}
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return value.object;
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}
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pub fn asArray(value: json.Value) ?json.Array {
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if (value != json.Value.array) {
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return null;
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}
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return value.array;
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}
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pub fn getObject(object: json.ObjectMap, name: []const u8) ?json.ObjectMap {
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const value = object.get(name);
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if (value == null) {
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return null;
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}
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return asObject(value.?);
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}
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pub fn getArray(object: json.ObjectMap, name: []const u8) ?json.Array {
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const value = object.get(name);
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if (value == null) {
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return null;
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}
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return asArray(value.?);
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}
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pub fn getString(object: json.ObjectMap, name: []const u8) ?[]const u8 {
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const value = object.get(name);
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if (value == null) {
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return null;
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}
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if (value.? != json.Value.string) {
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return null;
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}
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return value.?.string;
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}
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pub fn getStringRequired(object: json.ObjectMap, name: []const u8) ![]const u8 {
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return getString(object, name) orelse return error.MissingProperty;
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}
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pub fn dupeString(allocator: Allocator, object: json.ObjectMap, name: []const u8) !?[]u8 {
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const str = getString(object, name) orelse return null;
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return try allocator.dupe(u8, str);
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}
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pub fn dupeStringRequired(allocator: Allocator, object: json.ObjectMap, name: []const u8) ![]u8 {
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return (try dupeString(allocator, object, name)) orelse return error.MissingProperty;
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}
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