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}
50 lines
1.6 KiB
JavaScript
50 lines
1.6 KiB
JavaScript
// Copyright 2015 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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var module = (function () {
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var builder = new WasmModuleBuilder();
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var sig_index = builder.addSignature([kAstI32, kAstI32, kAstI32]);
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builder.addImport("add", sig_index);
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builder.addFunction("add", sig_index)
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.addBody([
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kExprGetLocal, 0, kExprGetLocal, 1, kExprCallImport, kArity2, 0
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]);
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builder.addFunction("sub", sig_index)
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.addBody([
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kExprGetLocal, 0, // --
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kExprGetLocal, 1, // --
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kExprI32Sub, // --
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]);
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builder.addFunction("main", [kAstI32, kAstI32, kAstI32, kAstI32])
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.addBody([
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kExprGetLocal, 0,
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kExprGetLocal, 1,
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kExprGetLocal, 2,
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kExprCallIndirect, kArity2, sig_index
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])
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.exportFunc()
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builder.appendToFunctionTable([0, 1, 2]);
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return builder.instantiate({add: function(a, b) { return a + b | 0; }});
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})();
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// Check the module exists.
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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.exports);
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assertEquals("function", typeof module.exports.main);
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assertEquals(5, module.exports.main(1, 12, 7));
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assertEquals(19, module.exports.main(0, 12, 7));
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assertTraps(kTrapFuncSigMismatch, "module.exports.main(2, 12, 33)");
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assertTraps(kTrapFuncInvalid, "module.exports.main(3, 12, 33)");
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