Raising Error by Key Example

This example demonstrates how to raise an error by key using explicit validation. The code in examples/ExplictValidation/raising_by_key.c shows how to raise a custom error for a specific key in an object.

Code Explanation

#include "CHashManipulatorOne.c"

CHashNamespace hash;
CHashObjectModule obj;
CHashArrayModule array;
CHashValidatorModule validator;

int main() {
    hash = newCHashNamespace();
    obj = hash.object;
    array = hash.array;
    validator = hash.validator;

    CHashObject *person = newCHashObject("name", hash.newString("aaaaaaaaa"));

    int custom_code = 500;
    validator.raise_error_by_key(person, "name", custom_code, "my custom error at #path# with #arg1#", newCHashObject("arg1", hash.newString("aaaa")));

    CHash_catch(person) {
        short code = hash.get_error_code(person);
        char *message = hash.get_error_message(person);
        CHash *args = hash.get_error_args(person);

        printf("code: %d\n", code);
        printf("message: %s\n", message);
        printf("args:\n");
        CHash_print(args);
    }

    hash.free(person);
}

Error Raising

The validator.raise_error_by_key function is used to raise a custom error for the 'name' key of the object. The custom error code is set to 500, and the error message includes a placeholder for an argument (#arg1#). The newCHashObject function is used to provide the argument value ("aaaa").

Error Handling

The CHash_catch block is used to catch the raised error. It retrieves the error code, message, and arguments, then prints them to the console. This allows for detailed error reporting and handling.