26 lines
683 B
Go
26 lines
683 B
Go
package binaryencoding
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import (
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"github.com/tetratelabs/wazero/internal/leb128"
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)
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// EncodeLimitsType returns the `limitsType` (min, max) encoded in 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/#limits%E2%91%A6
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//
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// Extended in threads proposal: https://webassembly.github.io/threads/core/binary/types.html#limits
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func EncodeLimitsType(min uint32, max *uint32, shared bool) []byte {
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var flag uint32
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if max != nil {
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flag = 0x01
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}
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if shared {
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flag |= 0x02
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}
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ret := append(leb128.EncodeUint32(flag), leb128.EncodeUint32(min)...)
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if max != nil {
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ret = append(ret, leb128.EncodeUint32(*max)...)
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}
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return ret
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}
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