2aa4656eeb
[wasm] Binary 11: br_table takes a value. [wasm] Binary 11: Add implicit blocks to if arms. [wasm] Binary 11: Add arities to call, return, and breaks [wasm] Binary 11: Add experimental version. This CL changes the encoder, decoder, and tests to use a postorder encoding of the AST, which is more efficient in decode time and space. R=bradnelson@chromium.org,rossberg@chromium.org,binji@chromium.org BUG=chromium:575167 LOG=Y Review-Url: https://codereview.chromium.org/1830663002 Cr-Commit-Position: refs/heads/master@{#35896}
112 lines
2.7 KiB
JavaScript
112 lines
2.7 KiB
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-wasm
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load("test/mjsunit/wasm/wasm-constants.js");
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load("test/mjsunit/wasm/wasm-module-builder.js");
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function instantiate(sig, body) {
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var builder = new WasmModuleBuilder();
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var func = builder.addFunction("", sig)
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.addBody(body);
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builder.addStart(func.index);
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return builder.instantiate();
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}
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function assertFails(sig, body) {
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try {
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var module = instantiate(sig, body);
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print("expected failure, but passes");
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assertFalse(true);
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} catch (expected) {
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print("ok: " + expected);
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}
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}
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function assertVerifies(sig, body) {
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var module = instantiate(sig, body);
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assertFalse(module === undefined);
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assertFalse(module === null);
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assertFalse(module === 0);
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assertEquals("object", typeof module);
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return module;
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}
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assertVerifies([kAstStmt], [kExprNop]);
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assertVerifies([kAstI32], [kExprI8Const, 0]);
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// Arguments aren't allow to start functions.
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assertFails([kAstI32, kAstI32], [kExprGetLocal, 0]);
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assertFails([kAstI32, kAstI32, kAstF32], [kExprGetLocal, 0]);
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assertFails([kAstI32, kAstI32, kAstF32, kAstF64], [kExprGetLocal, 0]);
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(function testInvalidIndex() {
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print("testInvalidIndex");
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var builder = new WasmModuleBuilder();
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var func = builder.addFunction("", [kAstStmt])
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.addBody([kExprNop]);
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builder.addStart(func.index + 1);
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assertThrows(builder.instantiate);
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})();
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(function testTwoStartFuncs() {
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print("testTwoStartFuncs");
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var builder = new WasmModuleBuilder();
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var func = builder.addFunction("", [kAstStmt])
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.addBody([kExprNop]);
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builder.addExplicitSection([kDeclStartFunction, 0]);
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builder.addExplicitSection([kDeclStartFunction, 0]);
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assertThrows(builder.instantiate);
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})();
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(function testRun() {
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print("testRun");
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var builder = new WasmModuleBuilder();
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builder.addMemory(12, 12, true);
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var func = builder.addFunction("", [kAstStmt])
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.addBody([kExprI8Const, 0, kExprI8Const, 77, kExprI32StoreMem, 0, 0]);
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builder.addStart(func.index);
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var module = builder.instantiate();
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var memory = module.exports.memory;
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var view = new Int8Array(memory);
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assertEquals(77, view[0]);
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})();
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(function testStartFFI() {
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print("testStartFFI");
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var ranned = false;
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var ffi = { foo : function() {
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print("we ranned at stert!");
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ranned = true;
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}};
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var builder = new WasmModuleBuilder();
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var sig_index = builder.addSignature([kAstStmt]);
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builder.addImport("foo", sig_index);
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var func = builder.addFunction("", sig_index)
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.addBody([kExprCallImport, kArity0, 0]);
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builder.addStart(func.index);
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var module = builder.instantiate(ffi);
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assertTrue(ranned);
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})();
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