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34 lines
691 B
34 lines
691 B
package compiler
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import (
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"github.com/brettlangdon/gython/bytecode"
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"github.com/brettlangdon/gython/gython"
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)
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type Instruction struct {
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Opcode bytecode.Opcode
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Oparg *gython.Float
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Hasarg bool
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Line int
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}
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func NewInstruction(opcode bytecode.Opcode, oparg *gython.Float, hasarg bool) *Instruction {
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return &Instruction{
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Opcode: opcode,
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Oparg: oparg,
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Hasarg: hasarg,
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Line: 0,
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}
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}
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func (instruction *Instruction) Size() int {
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if instruction.Hasarg == false {
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// 1 byte for the opcode
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return 1
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} else if instruction.Oparg.Value > 0xffff {
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// 1 (opcode) + 1 (EXTENDED_ARG opcode) + 2 (oparg) + 2(oparg extended)
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return 6
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}
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// 1 (opcode) + 2 (oparg)
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return 3
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}
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