TeaWeb/tools/trgen/ts_transformer.ts

76 lines
2.7 KiB
TypeScript

import * as ts from "typescript";
import * as ts_generator from "./ts_generator";
import * as path from "path";
import * as mkdirp from "mkdirp";
import {writeFileSync} from "fs";
import {TranslationEntry} from "./generator";
export interface Config {
target_file?: string;
verbose?: boolean;
optimized?: boolean;
}
let process_config: Config;
export default function(program: ts.Program, config?: Config) : (context: ts.TransformationContext) => (sourceFile: ts.SourceFile) => ts.SourceFile {
process_config = config as any || {};
const base_path = path.dirname(program.getCompilerOptions().project || program.getCurrentDirectory());
if(process_config.verbose) {
console.log("TRGen transformer called");
console.log("Base path: %s", base_path);
}
process.on('exit', function () {
if(!process_config.target_file) return;
const target = path.isAbsolute(process_config.target_file) ? process_config.target_file : path.join(base_path, process_config.target_file);
if(process_config.target_file) {
if(process_config.verbose)
console.log("Writing translation file to " + target);
mkdirp.sync(path.dirname(target));
writeFileSync(target, JSON.stringify(translations, null, 2));
}
});
return ctx => transformer(ctx) as any;
}
let processed = [];
const translations: TranslationEntry[] = [];
const transformer = (context: ts.TransformationContext) =>
(rootNode: ts.Node) => {
const handler = (rootNode: ts.Node) => {
if(rootNode.kind == ts.SyntaxKind.Bundle) {
const bundle = rootNode as ts.Bundle;
const result = [];
for(const file of bundle.sourceFiles)
result.push(handler(file));
return ts.updateBundle(bundle, result as any, bundle.prepends as any);
} else if(rootNode.kind == ts.SyntaxKind.SourceFile) {
const file = rootNode as ts.SourceFile;
if(processed.findIndex(e => e === file.fileName) !== -1) {
console.log("Skipping %s (already processed)", file.fileName);
return rootNode;
}
processed.push(file.fileName);
console.log("Processing " + file.fileName);
const result = ts_generator.transform({
use_window: false,
replace_cache: true,
module: true,
optimized: process_config.optimized
}, context, file);
translations.push(...result.translations);
return result.node;
} else {
console.warn("Invalid transform input: %s", ts.SyntaxKind[rootNode.kind]);
}
};
return handler(rootNode);
};