69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package core
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import (
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"git.urbach.dev/cli/q/src/asm"
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"git.urbach.dev/cli/q/src/ast"
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"git.urbach.dev/cli/q/src/errors"
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"git.urbach.dev/cli/q/src/expression"
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"git.urbach.dev/cli/q/src/token"
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)
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// CompileDefinition compiles a variable definition.
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func (f *Function) CompileDefinition(node *ast.Define) error {
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left := node.Expression.Children[0]
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right := node.Expression.Children[1]
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if left.IsLeaf() {
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variable, err := f.Define(left)
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if err != nil {
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return err
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}
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typ, err := f.ExpressionToRegister(right, variable.Register)
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if err != nil {
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return err
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}
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if typ == nil {
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return errors.New(errors.UntypedExpression, f.File, node.Expression.Token.End())
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}
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variable.Type = typ
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f.AddVariable(variable)
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return nil
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}
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if left.Token.Kind == token.Separator && right.Token.Kind == token.Div {
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return f.CompileAssignDivision(node.Expression)
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}
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if !ast.IsFunctionCall(right) {
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return errors.New(errors.NotImplemented, f.File, node.Expression.Token.Position)
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}
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count := 0
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types, err := f.CompileCall(right)
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if err != nil {
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return err
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}
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return left.EachLeaf(func(leaf *expression.Expression) error {
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variable, err := f.Define(leaf)
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if err != nil {
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return err
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}
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if count < len(types) {
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variable.Type = types[count]
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}
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f.RegisterRegister(asm.MOVE, variable.Register, f.CPU.Output[count])
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f.AddVariable(variable)
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count++
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return nil
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})
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}
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