37 lines
745 B
Go
37 lines
745 B
Go
package operand
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import "fmt"
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// Constant represents a constant literal.
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type Constant interface {
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Op
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Bytes() int
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constant()
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}
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//go:generate go run make_const.go -output zconst.go
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// String is a string constant.
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type String string
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// Asm returns an assembly syntax representation of the string s.
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func (s String) Asm() string { return fmt.Sprintf("$%q", s) }
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// Bytes returns the length of s.
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func (s String) Bytes() int { return len(s) }
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func (s String) constant() {}
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// Imm returns an unsigned integer constant with size guessed from x.
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func Imm(x uint64) Constant {
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switch {
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case uint64(uint8(x)) == x:
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return U8(x)
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case uint64(uint16(x)) == x:
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return U16(x)
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case uint64(uint32(x)) == x:
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return U32(x)
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}
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return U64(x)
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}
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