Implements skel functions for scope refactoring #358
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boohyunsik
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zeroFruit
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Feb 28, 2019
symbol/scope.go
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| } | ||
| // Define scope errors | ||
| type DupError struct { | ||
| Identifier ast.Identifier |
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I think it is better DupError has Symbol not Identifier
symbol/scope.go
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| s = NewEnclosedScope(s) | ||
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| if err := ScopingFunctionParameter(f.Parameters, s); err != nil { | ||
| return nil |
symbol/scope.go
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| } | ||
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| func (s *Scope) GetOuter() *Scope { | ||
| return s.outer | ||
| func ScopingFunctionParameter(f []*ast.ParameterLiteral, s *Scope) error { |
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why f ? could have better name
symbol/scope.go
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| for _, p := range f { | ||
| switch p.Type { | ||
| case ast.IntType: | ||
| { |
symbol/scope.go
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| err = ScopingIfStatement(implStmt, scope) | ||
| } | ||
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| if err != nil { |
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I think this if statement don't need, just return err enough
symbol/scope.go
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| func NewScope() *Scope { | ||
| return &Scope{ | ||
| store: make(map[string]Symbol), | ||
| parent: nil, |
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These are all WIP..:-)
boohyunsik
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hihiboss
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Mar 3, 2019
| } | ||
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| func (s *Scope) Get(name string) Object { | ||
| scope := s |
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Why use scope variable instead of s??
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If you want to clone Scope, scope := *s or func (s Scope) Get(name string) Object {} might be right
hihiboss
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Mar 3, 2019
| r.scope = NewEnclosedScope(r.scope) | ||
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| if err := ResolveFunctionParameter(f.Parameters, r); err != nil { | ||
| return nil |
hihiboss
reviewed
Mar 3, 2019
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| var obj Object | ||
| var t ObjectType | ||
| switch p.Type { |
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(refactor)
How about define func resolveParamObj like
func resolveParamObj(p ast.ParameterLiteral) (Object, ObjectType) {
switch p.Type {
case ast.IntType:
return &Integer{Name: p.Identifier}, IntegerObject
...
}And,
in func ResolveFunctionParameter()
for _, p := range p {
if obj, ok := r.scope.store[p.Identifier.Name]; ok {
return DupError{
object: obj,
}
}
obj, t := resolveParamObj(p)
r.scope.store[p.Identifier.Name] = obj
r.types[p] = t
r.defs[p.Identifier] = obj
}
return nil
hihiboss
reviewed
Mar 3, 2019
| return nil | ||
| } | ||
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| func ResolveFunctionParameter(p []*ast.ParameterLiteral, r *Resolver) error { | ||
| for _, p := range p { |
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Variable name is duplicated!
Although there is not any errors, i think it should be changed for readability.
ex) for _, param := params
hihiboss
reviewed
Mar 3, 2019
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| func ResolveStatement(stmt ast.Statement, r *Resolver) error { | ||
| var err error | ||
| switch implStmt := stmt.(type) { |
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case *ast.AssignStatement:
return ResolveAssignStatement(implStmt, r)is better!
boohyunsik
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[WIP] Refactoring scope