public static SettingSyntaxTree ParseSettings(string json, SettingSchema schema)
{
RootJsonSyntax rootNode = JsonParser.Parse(json);
var errors = rootNode.Errors;
// It is important to use green nodes here, so the schema doesn't need to create the entire parse tree to type-check its values.
// Instead, schema.TryCreateValue accepts a rootNodeStart parameter to generate errors at the right locations.
if (rootNode.Syntax.Green.ValueNode.ContentNode is GreenJsonMissingValueSyntax)
{
return(new SettingSyntaxTree(rootNode, null));
}
int rootNodeStart = rootNode.Syntax.Green.ValueNode.BackgroundBefore.Length;
if (schema.TryCreateValue(
json,
rootNode.Syntax.Green.ValueNode.ContentNode,
out SettingObject settingObject,
rootNodeStart,
errors).IsOption1(out ITypeErrorBuilder typeError))
{
errors.Add(ValueTypeError.Create(typeError, rootNode.Syntax.Green.ValueNode.ContentNode, json, rootNodeStart));
return(new SettingSyntaxTree(rootNode, null));
}
return(new SettingSyntaxTree(rootNode, settingObject));
}
public void ParseTreeTests(string json, ExpectedJsonTree parseTree, JsonErrorCode[] expectedErrors)
{
RootJsonSyntax rootSyntax = JsonParser.Parse(json);
AssertParseTree(parseTree, null, 0, rootSyntax.Syntax);
// Assert expected errors.
Assert.Collection(
rootSyntax.Errors,
Enumerable.Range(0, expectedErrors.Length)
.Select <int, Action <JsonErrorInfo> >(i => errorInfo => Assert.Equal(expectedErrors[i], errorInfo.ErrorCode))
.ToArray());
}
private SettingSyntaxTree(RootJsonSyntax jsonSyntaxTree, SettingObject settingObject)
{
JsonSyntaxTree = jsonSyntaxTree;
SettingObject = settingObject;
}
