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45 lines
1 KiB
Go
45 lines
1 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package goobj
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// Builtin (compiler-generated) function references appear
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// frequently. We assign special indices for them, so they
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// don't need to be referenced by name.
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// NBuiltin returns the number of listed builtin
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// symbols.
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func NBuiltin() int {
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return len(builtins)
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}
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// BuiltinName returns the name and ABI of the i-th
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// builtin symbol.
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func BuiltinName(i int) (string, int) {
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return builtins[i].name, builtins[i].abi
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}
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// BuiltinIdx returns the index of the builtin with the
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// given name and abi, or -1 if it is not a builtin.
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func BuiltinIdx(name string, abi int) int {
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i, ok := builtinMap[name]
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if !ok {
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return -1
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}
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if builtins[i].abi != abi {
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return -1
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}
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return i
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}
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//go:generate go run mkbuiltin.go
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var builtinMap map[string]int
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func init() {
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builtinMap = make(map[string]int, len(builtins))
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for i, b := range builtins {
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builtinMap[b.name] = i
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}
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}
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