101 lines
2.8 KiB
JavaScript
101 lines
2.8 KiB
JavaScript
const { assert } = require("chai");
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const { parse } = require("@webassemblyjs/wast-parser");
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const { moduleContextFromModuleAST } = require("../lib");
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const contextFromWast = wast => moduleContextFromModuleAST(parse(wast).body[0]);
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describe("module context", () => {
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describe("start segment", () => {
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it("should return the start function offset", () => {
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const context = contextFromWast(`
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(module
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(func)
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(func)
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(start 1)
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)
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`);
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assert.isOk(context.getStart());
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assert.typeOf(context.getStart(), "number");
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assert.equal(context.getStart(), 1);
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});
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it("should return null if no start function", () => {
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const context = contextFromWast(`
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(module (func))
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`);
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assert.isNull(context.getStart());
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});
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it("should retrive the type of implemented functions", () => {
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const context = contextFromWast(`
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(module
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(func (param i32) (result i64))
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(func (param i64) (result i32))
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(func (result i64))
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(func)
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)
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`);
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assert.deepEqual(context.getFunction(0), {
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args: ["i32"],
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result: ["i64"]
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});
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assert.deepEqual(context.getFunction(1), {
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args: ["i64"],
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result: ["i32"]
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});
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assert.deepEqual(context.getFunction(2), { args: [], result: ["i64"] });
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assert.deepEqual(context.getFunction(3), { args: [], result: [] });
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});
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it("should retrive the type of imported functions", () => {
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const context = contextFromWast(`
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(module
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(import "a" "a" (func (param i32) (result i32)))
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(import "a" "b" (func (result i64)))
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(import "a" "c" (func))
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(func (result f32))
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)
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`);
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assert.deepEqual(context.getFunction(0), {
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args: ["i32"],
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result: ["i32"]
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});
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assert.deepEqual(context.getFunction(1), {
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args: [],
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result: ["i64"]
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});
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assert.deepEqual(context.getFunction(2), { args: [], result: [] });
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assert.deepEqual(context.getFunction(3), { args: [], result: ["f32"] });
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});
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it("should retrive the type of functions with type ref", () => {
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const context = contextFromWast(`
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(module
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(type (func (param i32) (result i32)))
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(type (func (result i64)))
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(type (func))
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(import "a" "a" (func (type 0)))
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(import "a" "b" (func (type 1)))
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(func (type 2))
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)
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`);
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assert.deepEqual(context.getFunction(0), {
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args: ["i32"],
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result: ["i32"]
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});
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assert.deepEqual(context.getFunction(1), {
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args: [],
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result: ["i64"]
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});
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assert.deepEqual(context.getFunction(2), { args: [], result: [] });
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});
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});
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});
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