wgsl-plus/dist/tools/link.js

A WGSL preprocessor, prettifier, minifier, obfuscator, and compiler with C-style macros, conditional compilation, file linking, and multi-format output for WebGPU shaders.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = link;
const path_1 = __importDefault(require("path"));
const fs = __importStar(require("fs"));
// Process a WGSL file, resolving #include directives recursively
function getIncludedLines(filePath, processing, includedLines) {
    const absolutePath = path_1.default.resolve(filePath);
    // Detect circular dependencies
    if (processing.has(absolutePath)) {
        throw new Error(`Circular dependency detected: ${absolutePath}`);
    }
    // Check if file exists
    if (!fs.existsSync(absolutePath)) {
        throw new Error(`File not found: ${absolutePath}`);
    }
    processing.add(absolutePath);
    const content = fs.readFileSync(absolutePath, 'utf-8');
    const lines = content.split('\n');
    for (const line of lines) {
        const match = line.match(/^#include\s+"(.+)"\s*$/);
        if (match) {
            const includePath = match[1];
            const relativePath = path_1.default.resolve(path_1.default.dirname(absolutePath), includePath);
            if (!fs.existsSync(relativePath)) {
                throw new Error(`Linked file not found: ${includePath} in ${absolutePath}`);
            }
            getIncludedLines(relativePath, processing, includedLines);
        }
        else {
            includedLines.push(line);
        }
    }
    processing.delete(absolutePath);
}
function link(importFiles) {
    const processing = new Set();
    const includedLines = [];
    for (const importFile of importFiles) {
        getIncludedLines(importFile, processing, includedLines);
    }
    return includedLines.join('\n');
}