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compiler, language, runtime: Separate Parser Type From Instances
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In P4, parsers are considered types. Those parsers are instantiated.
The instantiated parsers are values. Previously, gp4 treated a parser
type and a parser value as identical. This PR makes that difference
clear _and_ sets the stage for the future.

TODO: Make the same distinction between control and action types and
values.

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
This commit is contained in:
Will Hawkins
2026-05-27 05:41:23 -04:00
parent 925f20a13b
commit 61d8f601e8
36 changed files with 1058 additions and 796 deletions
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Sources/Common/Execution.swift
+6
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@@ -257,6 +257,12 @@ public typealias VarValueScope = Scope<P4Value>
/// Scopes that resolves variable identifiers to their values.
public typealias VarValueScopes = Scopes<P4Value>
/// A scope that resolves variable identifiers to their values.
public typealias StaticVarValueScope = Scope<(P4QualifiedType, P4Value?)>
/// Scopes that resolves variable identifiers to their values.
public typealias StaticVarValueScopes = Scopes<(P4QualifiedType, P4Value?)>
/// Indicate the control flow result of a particular statement.
public enum ControlFlow {
case Next