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Kyiro

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•Created by Kyiro on 9/30/2024 in #help

Migrating to EF Core migrations

Hello I'm rewriting a whole backend from TS into C# and I'm struggling at the migrations part after I scaffolded the db context. How would I start using the migrations system EF Core has without just nuking all the data?

16 replies

DDeno

•Created by Kyiro on 7/7/2023 in #help

FFI string corrupted?

Is there anything i'm doing wrong here? I'm confused on why it's crashing on setVerisonUE5 in particular. The code without FFI in C++ works fine

import { Dataminer } from "./mod.ts";

Dataminer.withLogs(true);
Dataminer.setOodle("...");

const core = new Dataminer("...");
console.log(core); // printed
core.setVersionUE5(1008); // crashes here?
console.log("set version"); // not printed

import { Dataminer } from "./mod.ts";

Dataminer.withLogs(true);
Dataminer.setOodle("...");

const core = new Dataminer("...");
console.log(core); // printed
core.setVersionUE5(1008); // crashes here?
console.log("set version"); // not printed

const DLL_PATH = "...";

const library = Deno.dlopen(DLL_PATH, {
    "dataminer_options_with_oodle": {
        parameters: ["buffer"],
        result: "void"
    },
    "dataminer_with_logging": {
        parameters: ["bool"],
        result: "void"
    },
    "dataminer_construct": {
        parameters: ["buffer"],
        result: "pointer"
    },
    "dataminer_set_version_ue5": {
        parameters: ["pointer", "i32"],
        result: "void"
    }
});

function encode(text: string) {
    return new TextEncoder().encode(text);
}

export class Dataminer {
    pointer: Deno.PointerValue;
    
    constructor(paksDir: string) {
        this.pointer = library.symbols.dataminer_construct(encode(paksDir));
    }
    
    checkPointer() {
        if (!this.pointer) throw new Error("pointer is null");
    }
    
    static setOodle(oodlePath: string) {
        library.symbols.dataminer_options_with_oodle(encode(oodlePath));
    }
    
    static withLogs(shouldLog: boolean) {
        library.symbols.dataminer_with_logging(shouldLog);
    }
    
    setVersionUE5(version: number) {
        this.checkPointer();
        library.symbols.dataminer_set_version_ue5(this.pointer, version);
    }
}

const DLL_PATH = "...";

const library = Deno.dlopen(DLL_PATH, {
    "dataminer_options_with_oodle": {
        parameters: ["buffer"],
        result: "void"
    },
    "dataminer_with_logging": {
        parameters: ["bool"],
        result: "void"
    },
    "dataminer_construct": {
        parameters: ["buffer"],
        result: "pointer"
    },
    "dataminer_set_version_ue5": {
        parameters: ["pointer", "i32"],
        result: "void"
    }
});

function encode(text: string) {
    return new TextEncoder().encode(text);
}

export class Dataminer {
    pointer: Deno.PointerValue;
    
    constructor(paksDir: string) {
        this.pointer = library.symbols.dataminer_construct(encode(paksDir));
    }
    
    checkPointer() {
        if (!this.pointer) throw new Error("pointer is null");
    }
    
    static setOodle(oodlePath: string) {
        library.symbols.dataminer_options_with_oodle(encode(oodlePath));
    }
    
    static withLogs(shouldLog: boolean) {
        library.symbols.dataminer_with_logging(shouldLog);
    }
    
    setVersionUE5(version: number) {
        this.checkPointer();
        library.symbols.dataminer_set_version_ue5(this.pointer, version);
    }
}

23 replies

DDeno

•Created by Kyiro on 6/19/2023 in #help

deno_core usage

Are there any repos using deno_core in their code + how would I enable the unstable features and URL imports?

20 replies

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