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section_test.go
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section_test.go
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// Copyright (c) 2018 Timo Savola. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package wag
import (
"bytes"
"os"
"testing"
"gate.computer/wag/compile"
"gate.computer/wag/internal/loader"
"gate.computer/wag/section"
)
func TestSection(t *testing.T) {
var (
sectionMap = new(section.Map)
nameSectionMapping = new(section.MappedNameSection)
imaginaryMapping = new(section.CustomMapping)
loadConfig = compile.Config{
ModuleMapper: sectionMap,
CustomSectionLoader: section.CustomLoader(map[string]section.CustomContentLoader{
section.CustomName: nameSectionMapping.Loader(sectionMap),
"imaginary": imaginaryMapping.Loader(sectionMap),
}),
}
)
data, err := os.ReadFile("testdata/hello.wasm")
if err != nil {
t.Fatal(err)
}
r := loader.New(bytes.NewReader(data), 0)
mod, err := compile.LoadInitialSections(&compile.ModuleConfig{Config: loadConfig}, r)
if err != nil {
t.Fatal(err)
}
for i := 0; i < mod.NumImportFuncs(); i++ {
// Arbitrary (but existing) implementation.
mod.SetImportFunc(i, uint32(testlib.NumImportFuncs()))
}
err = compile.LoadCodeSection(&compile.CodeConfig{Config: loadConfig}, r, mod, testlib)
if err != nil {
t.Fatal(err)
}
err = compile.LoadDataSection(&compile.DataConfig{Config: loadConfig}, r, mod)
if err != nil {
t.Fatal(err)
}
err = compile.LoadCustomSections(&loadConfig, r)
if err != nil {
t.Fatal(err)
}
t.Logf("section map: %#v", sectionMap.Sections)
t.Logf("name section mapping: %#v", nameSectionMapping.Mapping)
t.Logf("imaginary mapping: %#v", imaginaryMapping)
}