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Add WebAssembly/TypeScript bindings (#5762)

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* Add TypeScript bindings

* mark Z3_eval_smtlib2_string as async
This commit is contained in:
Kevin Gibbons 2022-01-09 17:16:38 -08:00 • committed by GitHub
parent 9ac57fc510
commit 2b934b601d
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GPG key ID: 4AEE18F83AFDEB23
18 changed files with 1722 additions and 33 deletions
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82
src/api/js/scripts/make-cc-wrapper.js Normal file
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@ -0,0 +1,82 @@
'use strict';
// generates c wrappers with off-thread versions of specified functions
let path = require('path');
let { functions } = require('./parse-api.js');
let asyncFns = require('./async-fns.js');
let wrappers = [];
for (let fnName of asyncFns) {
let fn = functions.find(f => f.name === fnName);
if (fn == null) {
throw new Error(`could not find definition for ${fnName}`);
}
let wrapper;
if (fn.cRet === 'Z3_string') {
wrapper = `wrapper_str`;
} else if (['int', 'unsigned', 'void'].includes(fn.cRet) || fn.cRet.startsWith('Z3_')) {
wrapper = `wrapper`;
} else {
throw new Error(`async function with unknown return type ${fn.cRet}`);
}
wrappers.push(
`
extern "C" void async_${fn.name}(${fn.params
.map(p => `${p.isConst ? 'const ' : ''}${p.cType}${p.isPtr ? '*' : ''} ${p.name}${p.isArray ? '[]' : ''}`)
.join(', ')}) {
${wrapper}<decltype(&${fn.name}), &${fn.name}>(${fn.params.map(p => `${p.name}`).join(', ')});
}
`.trim(),
);
}
console.log(`// THIS FILE IS AUTOMATICALLY GENERATED BY ${path.basename(__filename)}
// DO NOT EDIT IT BY HAND
#include <thread>
#include <emscripten.h>
#include "../../z3.h"
template<typename Fn, Fn fn, typename... Args>
void wrapper(Args&&... args) {
std::thread t([...args = std::forward<Args>(args)] {
try {
auto result = fn(args...);
MAIN_THREAD_ASYNC_EM_ASM({
resolve_async($0);
}, result);
} catch (...) {
MAIN_THREAD_ASYNC_EM_ASM({
reject_async('failed with unknown exception');
});
throw;
}
});
t.detach();
}
template<typename Fn, Fn fn, typename... Args>
void wrapper_str(Args&&... args) {
std::thread t([...args = std::forward<Args>(args)] {
try {
auto result = fn(args...);
MAIN_THREAD_ASYNC_EM_ASM({
resolve_async(UTF8ToString($0));
}, result);
} catch (...) {
MAIN_THREAD_ASYNC_EM_ASM({
reject_async('failed with unknown exception');
});
throw;
}
});
t.detach();
}
${wrappers.join('\n\n')}`);