43 lines
836 B
Go
43 lines
836 B
Go
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package pass
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import (
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"github.com/mmcloughlin/avo/attr"
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"github.com/mmcloughlin/avo/ir"
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)
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// IncludeTextFlagHeader includes textflag.h if necessary.
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func IncludeTextFlagHeader(f *ir.File) error {
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const textflagheader = "textflag.h"
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// Check if we already have it.
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for _, path := range f.Includes {
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if path == textflagheader {
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return nil
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}
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}
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// Add it if necessary.
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if requirestextflags(f) {
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f.Includes = append(f.Includes, textflagheader)
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}
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return nil
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}
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// requirestextflags returns whether the file uses flags in the textflags.h header.
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func requirestextflags(f *ir.File) bool {
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for _, s := range f.Sections {
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var a attr.Attribute
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switch s := s.(type) {
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case *ir.Function:
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a = s.Attributes
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case *ir.Global:
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a = s.Attributes
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}
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if a.ContainsTextFlags() {
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return true
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}
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}
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return false
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}
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