28 lines
899 B
Go
28 lines
899 B
Go
package core
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import (
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"git.akyoto.dev/cli/q/src/asm"
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"git.akyoto.dev/cli/q/src/errors"
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"git.akyoto.dev/cli/q/src/expression"
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"git.akyoto.dev/cli/q/src/types"
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)
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// CompileDelete compiles a `delete` function call which deallocates a struct.
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func (f *Function) CompileDelete(root *expression.Expression) error {
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parameters := root.Children[1:]
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variableName := parameters[0].Token.Text(f.File.Bytes)
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variable := f.VariableByName(variableName)
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if variable == nil {
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return errors.New(&errors.UnknownIdentifier{Name: variableName}, f.File, parameters[0].Token.Position)
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}
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defer f.UseVariable(variable)
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f.SaveRegister(f.CPU.Input[0])
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f.SaveRegister(f.CPU.Input[1])
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f.RegisterRegister(asm.MOVE, f.CPU.Input[0], variable.Register)
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f.RegisterNumber(asm.MOVE, f.CPU.Input[1], int(variable.Type.(*types.Pointer).To.Size()))
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f.CallSafe(f.Functions["mem.free"], f.CPU.Input[:2])
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return nil
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}
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