36 lines
685 B
Go
36 lines
685 B
Go
package compiler
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func (c *Compiler) currentInstructions() []byte {
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return c.scopes[c.scopeIndex].instructions
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}
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func (c *Compiler) enterScope() {
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scope := CompilationScope{
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instructions: make([]byte, 0),
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symbolInit: make(map[string]bool),
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}
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c.scopes = append(c.scopes, scope)
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c.scopeIndex++
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c.symbolTable = c.symbolTable.Fork(false)
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if c.trace != nil {
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c.printTrace("SCOPE", c.scopeIndex)
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}
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}
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func (c *Compiler) leaveScope() []byte {
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instructions := c.currentInstructions()
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c.scopes = c.scopes[:len(c.scopes)-1]
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c.scopeIndex--
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c.symbolTable = c.symbolTable.Parent(true)
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if c.trace != nil {
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c.printTrace("SCOPL", c.scopeIndex)
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}
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return instructions
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}
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