27 lines
685 B
Go
27 lines
685 B
Go
package binary
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import (
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"bytes"
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"github.com/tetratelabs/wazero/internal/wasm"
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)
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// decodeMemory returns the api.Memory decoded with the WebAssembly 1.0 (20191205) Binary Format.
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//
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// See https://www.w3.org/TR/2019/REC-wasm-core-1-20191205/#binary-memory
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func decodeMemory(
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r *bytes.Reader,
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memorySizer func(minPages uint32, maxPages *uint32) (min, capacity, max uint32),
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memoryLimitPages uint32,
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) (*wasm.Memory, error) {
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min, maxP, err := decodeLimitsType(r)
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if err != nil {
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return nil, err
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}
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min, capacity, max := memorySizer(min, maxP)
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mem := &wasm.Memory{Min: min, Cap: capacity, Max: max, IsMaxEncoded: maxP != nil}
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return mem, mem.Validate(memoryLimitPages)
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}
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