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|
//go:build !wasip1
package wasm
import (
"context"
"fmt"
"github.com/tetratelabs/wazero/api"
)
func (value String) Load(module api.Module) string {
return string(value.LoadBytes(module))
}
func (value String) LoadBytes(module api.Module) []byte {
data, ok := module.Memory().Read(uint32(value>>32), uint32(value))
if !ok {
panic("memory read out of bounds")
}
return data
}
func (value String) Store(ctx context.Context, module api.Module, data string) (String, error) {
buffer, err := Store(ctx, module, []byte(data))
if err != nil {
return 0, err
}
return String(buffer), nil
}
func (buffer Buffer) Load(module api.Module) []byte {
data, ok := module.Memory().Read(buffer.Address(), buffer.Length())
if !ok {
panic("memory read out of bounds")
}
return data
}
func Store(ctx context.Context, module api.Module, data []byte) (Buffer, error) {
results, err := module.ExportedFunction("malloc").Call(ctx, uint64(len(data)))
if err != nil {
return 0, fmt.Errorf("wasm: failed to call malloc: %w", err)
}
buffer := Buffer(results[0])
module.Memory().Write(buffer.Address(), data)
return buffer, nil
}
|
