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Added eval package

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This commit is contained in:
Eduard Urbach 2025-02-27 19:45:18 +01:00
parent 891b4d9f90
commit 3d294eb35c
Signed by: eduard
GPG key ID: 49226B848C78F6C8
16 changed files with 274 additions and 148 deletions
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66
src/core/ExpressionToMemory.go
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@ -1,64 +1,38 @@
package core
import (
"fmt"
"git.urbach.dev/cli/q/src/asm"
"git.urbach.dev/cli/q/src/errors"
"git.urbach.dev/cli/q/src/eval"
"git.urbach.dev/cli/q/src/expression"
"git.urbach.dev/cli/q/src/token"
"git.urbach.dev/cli/q/src/types"
)
// ExpressionToMemory puts the result of an expression into the specified memory address.
func (f *Function) ExpressionToMemory(node *expression.Expression, memory asm.Memory) (types.Type, error) {
if node.IsLeaf() {
if node.Token.Kind == token.Identifier {
name := node.Token.Text(f.File.Bytes)
variable, function := f.Identifier(name)
if variable != nil {
f.MemoryRegister(asm.STORE, memory, variable.Register)
f.UseVariable(variable)
return types.AnyPointer, nil
}
if function != nil {
f.MemoryLabel(asm.STORE, memory, function.UniqueName)
return types.AnyPointer, nil
}
if name == "_exit" {
f.MemoryLabel(asm.STORE, memory, "_exit")
return types.AnyPointer, nil
}
return nil, errors.New(&errors.UnknownIdentifier{Name: name}, f.File, node.Token.Position)
}
if node.Token.IsNumeric() {
number, err := f.ToNumber(node.Token)
if err != nil {
return nil, err
}
// size := byte(sizeof.Signed(int64(number)))
// if size > memory.Length {
// return nil, errors.New(&errors.NumberExceedsBounds{Number: number, ExpectedSize: memory.Length, Size: size}, f.File, node.Token.Position)
// }
f.MemoryNumber(asm.STORE, memory, number)
return types.AnyInt, nil
}
}
value, err := f.Evaluate(node)
if err != nil {
return nil, err
}
f.MemoryRegister(asm.STORE, memory, value.Register)
f.FreeRegister(value.Register)
switch value.Kind {
case eval.Number:
f.MemoryNumber(asm.STORE, memory, value.Number)
case eval.Register:
f.MemoryRegister(asm.STORE, memory, value.Register)
f.FreeRegister(value.Register)
case eval.Memory:
tmp := f.NewRegister()
f.MemoryRegister(asm.LOAD, value.Memory, tmp)
f.MemoryRegister(asm.STORE, memory, tmp)
f.FreeRegister(tmp)
case eval.Label:
f.MemoryLabel(asm.STORE, memory, value.Label)
default:
panic(fmt.Errorf("%s: not implemented: %d", f.UniqueName, value.Kind))
}
return value.Type, err
}