Function loadImportedLualibFeatures

src/LuaLib.ts:229–258

(
    features: Iterable<LuaLibFeature>,
    luaTarget: LuaTarget,
    emitHost: EmitHost
)

}

export function loadImportedLualibFeatures(
    features: Iterable<LuaLibFeature>,
    luaTarget: LuaTarget,
    emitHost: EmitHost
): lua.Statement[] {
    const luaLibModuleInfo = getLuaLibModulesInfo(luaTarget, emitHost);

    const imports = Array.from(features).flatMap(feature => luaLibModuleInfo[feature].exports);
    if (imports.length === 0) {
        return [];
    }

    const requireCall = lua.createCallExpression(lua.createIdentifier("require"), [
        lua.createStringLiteral("lualib_bundle"),
    ]);

    const luaLibId = lua.createIdentifier("____lualib");
    const importStatement = lua.createVariableDeclarationStatement(luaLibId, requireCall);
    const statements: lua.Statement[] = [importStatement];
    // local <export> = ____luaLib.<export>
    for (const item of imports) {
        statements.push(
            lua.createVariableDeclarationStatement(
                lua.createIdentifier(item),
                lua.createTableIndexExpression(luaLibId, lua.createStringLiteral(item))
            )
        );
    }
    return statements;
}

const luaLibBundleContent = new Map<string, string>();