assert working

cli.js

@@ -24,6 +24,7 @@
 const fs = require("fs");
 const path = require("path");
 const Scalar = require("ffjavascript").Scalar;
+const stringifyBigInts = require("ffjavascript").utils.stringifyBigInts;
 const fastFile = require("fastfile");
 
 const compiler = require("./src/compiler");
@@ -153,7 +154,7 @@ run().then(()=> {
         if (argv.verbose) console.log(err.stack);
     }
     if (err.ast) {
-        console.error(JSON.stringify(err.ast, null, 1));
+        console.error(JSON.stringify(stringifyBigInts(err.ast), null, 1));
     }
     process.exit(1);
 });

package-lock.json

@@ -203,11 +203,11 @@
       "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII="
     },
     "circom_runtime": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/circom_runtime/-/circom_runtime-0.1.2.tgz",
-      "integrity": "sha512-qh1GsfxXLGAhLBcIQWrFHO/zu6kuXQQL1xC3+P8KRETvynTbBVSb1ul3dCiXyetm7lVNNdhb1/UoOCEZ6yu1RQ==",
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/circom_runtime/-/circom_runtime-0.1.4.tgz",
+      "integrity": "sha512-sQWeEBD3o2jIdrKPf3VDu7DNfP+NfscYO/pxi73FE0qQW8TXTfwno8Grdl++h6OKWbzvWJdG5jQvS+WGKjpMOg==",
       "requires": {
-        "ffjavascript": "0.2.4",
+        "ffjavascript": "0.2.10",
         "fnv-plus": "^1.3.1"
       }
     },
@@ -334,9 +334,9 @@
       "dev": true
     },
     "ejs": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.3.tgz",
-      "integrity": "sha512-wmtrUGyfSC23GC/B1SMv2ogAUgbQEtDmTIhfqielrG5ExIM9TP4UoYdi90jLF1aTcsWCJNEO0UrgKzP0y3nTSg==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.5.tgz",
+      "integrity": "sha512-dldq3ZfFtgVTJMLjOe+/3sROTzALlL9E34V4/sDtUd/KlBSS0s6U1/+WPE1B4sj9CXHJpL1M6rhNJnc9Wbal9w==",
       "requires": {
         "jake": "^10.6.1"
       }
@@ -571,9 +571,9 @@
       "integrity": "sha512-0EZo2y5eW8X0oiDDRvcnufjVxlM96CQL5hvmRQtbRABWlCkH73IHwkzl0qOSdxtchaMr+0TSB7GVqaVEixRr1Q=="
     },
     "ffiasm": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/ffiasm/-/ffiasm-0.1.0.tgz",
-      "integrity": "sha512-fQI7b6oye7Yw3t28ku9XuhPSwwzKMeqB0pkIaGPrKl9s/ipV90o8J4Ge0s5F0UsH5Mu2wfr3hFQ2sGF+vQk5Sg==",
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ffiasm/-/ffiasm-0.1.1.tgz",
+      "integrity": "sha512-irMMHiR9JJ7BVBrAhtliUawxVdPYSdyl81taUYJ4C1mJ0iw2ueThE/qtr0J8B83tsIY8HJvh0lg5F+6ClK4xpA==",
       "requires": {
         "big-integer": "^1.6.48",
         "ejs": "^3.0.1",
@@ -581,13 +581,24 @@
       }
     },
     "ffjavascript": {
-      "version": "0.2.4",
-      "resolved": "https://registry.npmjs.org/ffjavascript/-/ffjavascript-0.2.4.tgz",
-      "integrity": "sha512-XFeWcjUDFPavN+DDOxhE8p5MOhZQJc9oO1Sj4ml1pyjqNhS1ujEamcjFyK0cctdnat61i7lvpTYzdtS3RYDC8w==",
+      "version": "0.2.10",
+      "resolved": "https://registry.npmjs.org/ffjavascript/-/ffjavascript-0.2.10.tgz",
+      "integrity": "sha512-GQI6gHYYG5/iD4Kt3VzezzK7fARJzP0zkc82V/+JAdjfeKBXhDSo5rpKFuK3cDcrdW0Fu2emuYNMEAuFqhEQvQ==",
       "requires": {
         "big-integer": "^1.6.48",
-        "wasmcurves": "0.0.4",
+        "wasmcurves": "0.0.5",
         "worker-threads": "^1.0.0"
+      },
+      "dependencies": {
+        "wasmcurves": {
+          "version": "0.0.5",
+          "resolved": "https://registry.npmjs.org/wasmcurves/-/wasmcurves-0.0.5.tgz",
+          "integrity": "sha512-BmI4GXLjLawGg2YkvHa8zRsnWec+d1uwoxE+Iov8cqOpDL7GA5XO2pk2yuDbXHMzwIug2exnKot3baRZ86R0pA==",
+          "requires": {
+            "big-integer": "^1.6.42",
+            "blakejs": "^1.1.0"
+          }
+        }
       }
     },
     "ffwasm": {
@@ -1163,6 +1174,16 @@
           "version": "0.0.7",
           "resolved": "https://registry.npmjs.org/fastfile/-/fastfile-0.0.7.tgz",
           "integrity": "sha512-Zk7sdqsV6DsN/rhjULDfCCowPiMDsziTMFicdkrKN80yybr/6YFf9H91ELXN85dVEf6EYkVR5EHkZNc0dMqZKA=="
+        },
+        "ffjavascript": {
+          "version": "0.2.4",
+          "resolved": "https://registry.npmjs.org/ffjavascript/-/ffjavascript-0.2.4.tgz",
+          "integrity": "sha512-XFeWcjUDFPavN+DDOxhE8p5MOhZQJc9oO1Sj4ml1pyjqNhS1ujEamcjFyK0cctdnat61i7lvpTYzdtS3RYDC8w==",
+          "requires": {
+            "big-integer": "^1.6.48",
+            "wasmcurves": "0.0.4",
+            "worker-threads": "^1.0.0"
+          }
         }
       }
     },

package.json

@@ -30,10 +30,10 @@
   },
   "dependencies": {
     "chai": "^4.2.0",
-    "circom_runtime": "0.1.2",
+    "circom_runtime": "0.1.4",
     "fastfile": "0.0.12",
-    "ffiasm": "0.1.0",
-    "ffjavascript": "0.2.4",
+    "ffiasm": "0.1.1",
+    "ffjavascript": "0.2.10",
     "ffwasm": "0.0.7",
     "fnv-plus": "^1.3.1",
     "r1csfile": "0.0.14",

ports/c/builder.js

@@ -95,6 +95,10 @@ class CodeBuilderC {
         this.ops.push({op: "CHECKCONSTRAINT", a, b, strErr});
     }
 
+    checkAssert(a, strErr) {
+        this.ops.push({op: "CHECKASSERT", a, strErr});
+    }
+
     log(val) {
         this.ops.push({op: "LOG", val});
     }
@@ -215,6 +219,8 @@ class CodeBuilderC {
                 code.push(`${o.fnName}(ctx, ${o.retLabel}, ${o.params.join(",")});`);
             } else if (o.op == "CHECKCONSTRAINT") {
                 code.push(`ctx->checkConstraint(__cIdx, ${ref2src(o.a)}, ${ref2src(o.b)}, "${o.strErr}");`);
+            } else if (o.op == "CHECKASSERT") {
+                code.push(`ctx->checkAssert(__cIdx, ${ref2src(o.a)}, "${o.strErr}");`);
             } else if (o.op == "LOG") {
                 code.push(`ctx->log(${ref2src(o.val)});`);
             }

ports/wasm/build_runtime.js

@@ -619,6 +619,35 @@ module.exports = function buildRuntime(module, builder) {
         ));
     }
 
+    function buildCheckAssert() {
+        const f = module.addFunction("checkAssert");
+        f.addParam("cIdx", "i32");
+        f.addParam("pA", "i32");
+        f.addParam("pStr", "i32");
+
+        const c = f.getCodeBuilder();
+
+        f.addCode(ifSanityCheck(c,
+            c.if (
+                c.i32_eqz(
+                    c.call(
+                        "Fr_isTrue",
+                        c.getLocal("pA"),
+                    )
+                ),
+                c.call(
+                    "error",
+                    c.i32_const(errs.ASSERT_DOES_NOT_MATCH.code),
+                    c.i32_const(errs.ASSERT_DOES_NOT_MATCH.pointer),
+                    c.getLocal("cIdx"),
+                    c.getLocal("pA"),
+                    c.getLocal("pStr"),
+                    c.i32_const(0)
+                )
+            )
+        ));
+    }
+
     function buildGetNVars() {
         const f = module.addFunction("getNVars");
         f.setReturnType("i32");
@@ -823,6 +852,7 @@ module.exports = function buildRuntime(module, builder) {
     buildComponentFinished();
 
     buildCheckConstraint();
+    buildCheckAssert();
 
     buildGetNVars();
     buildGetFrLen();

ports/wasm/builder.js

@@ -98,6 +98,9 @@ class CodeBuilderWasm {
         this.ops.push({op: "CHECKCONSTRAINT", a, b, strErr});
     }
 
+    checkAssert(a, strErr) {
+        this.ops.push({op: "CHECKASSERT", a, strErr});
+    }
 
     concat(cb) {
         this.ops.push(...cb.ops);
@@ -332,6 +335,15 @@ class CodeBuilderWasm {
                         c.i32_const(this.fnBuilder.builder.module.allocString(o.strErr))
                     )
                 );
+            } else if (o.op == "CHECKASSERT") {
+                code.push(
+                    c.call(
+                        "checkAssert",
+                        c.getLocal("cIdx"),
+                        this.fnBuilder._deRefFr(c, o.a),
+                        c.i32_const(this.fnBuilder.builder.module.allocString(o.strErr))
+                    )
+                );
             } else if (o.op == "LOG") {
                 code.push(
                     c.call(

ports/wasm/errs.js

@@ -7,4 +7,5 @@ module.exports = {
     SIGNAL_ASSIGNED_TWICE:          {code: 6, str: "Signal assigned twice"},
     CONSTRAIN_DOES_NOT_MATCH:       {code: 7, str: "Constraint doesn't match"},
     MAPISINPUT_DONT_MATCH:          {code: 8, str: "MapIsInput don't match"},
+    ASSERT_DOES_NOT_MATCH:          {code: 9, str: "Assert not satisfied"},
 };

src/construction_phase.js

@@ -567,9 +567,13 @@ function execFunctionCall(ctx, ast) {
         return;
     }
     if (ast.name == "assert") {
+        ast.fileName = ctx.fileName;
+        ast.filePath = ctx.filePath;
+
         const v = exec(ctx, ast.params[0]);
         const ev = val(ctx, v, ast);
-        if (ctx.F.isZero(ev)) return ctx.throwError(ast, "Assertion failed");
+        if ((typeof ev.v !== "undefined")&&(ctx.F.isZero(ev.v))) return ctx.throwError(ast, "Assertion failed");
+        return;
     }
 
     const fnc = ctx.functions[ast.name];

src/gencode.js

@@ -871,6 +871,12 @@ function genFunctionCall(ctx, ast) {
         ctx.codeBuilder.log(toRefA_Fr1(ctx, ast.params[0], vRef));
         return vRef;
     }
+    if (ast.name == "assert") {
+        const strErr = ast.fileName + ":" + ast.first_line + ":" + ast.first_column;
+        const vRef = gen(ctx, ast.params[0]);
+        ctx.codeBuilder.checkAssert(toRefA_Fr1(ctx, ast.params[0], vRef), strErr);
+        return vRef;
+    }
     const params = [];
     for (let i=0; i<ast.params.length; i++) {
         const pRef = gen(ctx, ast.params[i]);