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compiler, runtime, common, documentation: Refactor Type System

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The type system (and the value system) now include attributes
for each type (things like direction, const-ness).

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
This commit is contained in:
Will Hawkins
2026-04-13 23:53:31 -04:00
parent 35b2537754
commit 94086c8e17
34 changed files with 690 additions and 552 deletions
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Sources/P4Lang/Program.swift
+9 -9
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@@ -22,16 +22,16 @@ public struct ExpressionStatement {
}
public struct Program {
public var types: [P4Type] = Array()
public var instances: [P4TypeAttributed] = Array()
public var types: [P4DataType] = Array()
public var instances: [P4Type] = Array()
/// Type of closure for filtering results from ``Program/InstancesWithTypes(_:)``
public typealias AttributedTypeFilter = (P4TypeAttributed) -> Bool
public typealias AttributedTypeFilter = (P4Type) -> Bool
/// Type of closure for filtering results from ``Program/TypesWithTypes(_:)``
public typealias TypeFilter = (P4Type) -> Bool
public typealias TypeFilter = (P4DataType) -> Bool
/// Retrieve global instances in the compiled P4 program.
public func InstancesWithTypes() -> [P4TypeAttributed] {
public func InstancesWithTypes() -> [P4Type] {
return self.instances
}
@@ -47,14 +47,14 @@ public struct Program {
///
/// @Snippet(path: "use-program-instanceswithtypes", slice: "include")
///
public func InstancesWithTypes(_ filter: AttributedTypeFilter) -> [P4TypeAttributed] {
public func InstancesWithTypes(_ filter: AttributedTypeFilter) -> [P4Type] {
return self.instances.filter { instance in
filter(instance)
}
}
/// Retrieve global types in the compiled P4 program.
public func TypesWithTypes() -> [P4Type] {
public func TypesWithTypes() -> [P4DataType] {
return self.types
}
@@ -70,7 +70,7 @@ public struct Program {
///
/// @Snippet(path: "use-program-typeswithtypes", slice: "include")
///
public func TypesWithTypes(_ filter: TypeFilter) -> [P4Type] {
public func TypesWithTypes(_ filter: TypeFilter) -> [P4DataType] {
return self.types.filter { instance in
filter(instance)
}
@@ -85,7 +85,7 @@ public struct Program {
public func find_parser(withName name: Identifier) -> Result<Parser> {
for instance in self.instances {
guard let parser = instance.type as? Parser else {
guard let parser = instance.dataType() as? Parser else {
continue
}
if parser.name == name {