69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
package core
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import (
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"fmt"
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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/sizeof"
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"git.akyoto.dev/cli/q/src/token"
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"git.akyoto.dev/cli/q/src/types"
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)
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// ExpressionToMemory puts the result of an expression into the specified memory address.
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func (f *Function) ExpressionToMemory(node *expression.Expression, memory asm.Memory) (*types.Type, error) {
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if node.IsLeaf() {
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if node.Token.Kind == token.Identifier {
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name := node.Token.Text(f.File.Bytes)
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variable := f.VariableByName(name)
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if variable != nil {
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f.UseVariable(variable)
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f.MemoryRegister(asm.STORE, memory, variable.Register)
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return types.Pointer, nil
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}
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uniqueName := fmt.Sprintf("%s.%s", f.Package, name)
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_, exists := f.Functions[uniqueName]
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if exists {
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f.MemoryLabel(asm.STORE, memory, uniqueName)
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return types.Pointer, nil
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}
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return nil, errors.New(&errors.UnknownIdentifier{Name: name}, f.File, node.Token.Position)
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}
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if node.Token.IsNumeric() {
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number, err := f.Number(node.Token)
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if err != nil {
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return nil, err
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}
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size := byte(sizeof.Signed(int64(number)))
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if size != memory.Length {
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return nil, errors.New(&errors.NumberExceedsBounds{Number: number, ExpectedSize: memory.Length, Size: size}, f.File, node.Token.Position)
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}
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f.MemoryNumber(asm.STORE, memory, number)
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return types.Int, nil
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}
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}
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typ, register, isTemporary, err := f.Evaluate(node)
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if err != nil {
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return nil, err
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}
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f.MemoryRegister(asm.STORE, memory, register)
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if isTemporary {
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f.FreeRegister(register)
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}
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return typ, err
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}
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