Will Hawkins
137 lines
3.7 KiB
Swift
137 lines
3.7 KiB
Swift
// p4rse, Copyright 2026, Will Hawkins
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//
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// This file is part of p4rse.
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//
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// This file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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import Common
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public struct Declaration: P4DataType {
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public let identifier: TypedIdentifier
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public let extern: Bool
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public let ffi: P4FFI?
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public init(_ id: TypedIdentifier) {
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identifier = id
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ffi = .none
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self.extern = false
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}
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public init(extern: Declaration, ffi: P4FFI) {
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identifier = extern.identifier
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self.ffi = ffi
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self.extern = true
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}
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public func eq(rhs: any Common.P4DataType) -> Bool {
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return switch rhs {
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case let rrhs as Declaration:
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self.identifier.type.dataType().eq(rhs: rrhs.identifier.type.dataType())
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&& self.extern == rrhs.extern
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default: false
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}
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}
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public func def() -> any Common.P4DataValue {
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// TODO: Is a default of the extern'd type the right way to go?
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return self.identifier.type.dataType().def()
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}
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public func type() -> any Common.P4DataType {
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return self
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}
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public var description: String {
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return "Extern \(self.identifier)"
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}
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}
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public struct ExternDeclaration {}
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public struct FunctionDeclaration: P4DataType, P4DataValue {
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public func type() -> any Common.P4DataType {
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return self
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}
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public func eq(rhs: any Common.P4DataType) -> Bool {
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print("Checking a type: me: \(self) vs them: \(rhs)!")
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switch rhs {
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case let frhs as FunctionDeclaration:
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return frhs.tipe.eq(self.tipe) && frhs.params == self.params
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default: return false
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}
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}
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public func eq(rhs: any Common.P4DataValue) -> Bool {
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switch rhs {
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case let frhs as FunctionDeclaration: return self.eq(rhs: frhs as P4DataType)
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default: return false
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}
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}
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public func lt(rhs: any Common.P4DataValue) -> Bool {
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switch rhs {
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case let frhs as FunctionDeclaration: return self.name < frhs.name
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default: return false
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}
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}
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public func lte(rhs: any Common.P4DataValue) -> Bool {
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switch rhs {
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case let frhs as FunctionDeclaration: return self.name <= frhs.name
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default: return false
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}
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}
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public func gt(rhs: any Common.P4DataValue) -> Bool {
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switch rhs {
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case let frhs as FunctionDeclaration: return self.name > frhs.name
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default: return false
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}
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}
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public func gte(rhs: any Common.P4DataValue) -> Bool {
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switch rhs {
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case let frhs as FunctionDeclaration: return self.name >= frhs.name
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default: return false
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}
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}
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public func def() -> any Common.P4DataValue {
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return FunctionDeclaration(
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named: Identifier(name: ""), ofType: P4Type(P4Boolean()),
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withParameters: ParameterList([]),
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withBody: .none)
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}
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public var description: String {
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return "Function named \(self.name) that returns \(self.tipe) with parameters \(self.params)"
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}
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public var body: BlockStatement?
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public var params: ParameterList
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public var name: Identifier
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public var tipe: P4Type
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public init(
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named name: Identifier, ofType type: P4Type, withParameters parameters: ParameterList,
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withBody body: BlockStatement?
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) {
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self.name = name
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self.tipe = type
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self.params = parameters
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self.body = body
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}
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}
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