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compiler, runtime, common, testing: Support Directions on Parameters and Attributed Types

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Add support for directions on parameters and attributed types. The
latter is necessary to support the former, but is not limited to
the direction use case. An attributed type is a P4 type with attributes
(like its direction, whether it is read only, etc.) Other attributes
will be added in the future.

Changes necessary to support attributed types include:
1. Global instances tracked during compilation are not attributed
types and not simply types.
2. (future) Type checking will have to make sure that a types
attributes do not affect type compatibility.

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
This commit is contained in:
Will Hawkins
2026-04-13 06:25:08 -04:00
parent 9669a99dfc
commit 35b2537754
17 changed files with 209 additions and 64 deletions
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Tests/p4rseTests/ArrayTests.swift
+8 -8
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@@ -40,7 +40,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Int()))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Int())))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
identifier: Identifier(name: "ta"),
@@ -68,7 +68,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Int())
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Int()))
#expect(
#RequireErrorResult(
Error(
@@ -91,7 +91,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Int()))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Int())))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
identifier: Identifier(name: "ta"),
@@ -118,7 +118,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Int()))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Int())))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
identifier: Identifier(name: "ta"),
@@ -145,7 +145,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Int()))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Int())))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
identifier: Identifier(name: "ta"),
@@ -173,7 +173,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Array(withValueType: P4Int())))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Array(withValueType: P4Int()))))
var test_values = VarValueScopes().enter()
let nested = P4ArrayValue(
@@ -206,7 +206,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Int()))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Int())))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
identifier: Identifier(name: "ta"),
@@ -235,7 +235,7 @@ import TreeSitterP4
};
"""
var test_declarations = VarTypeScopes().enter()
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4Array(withValueType: P4Array(withValueType: P4Int())))
test_declarations = test_declarations.declare(identifier: Identifier(name: "ta"), withValue: P4TypeAttributed.Attributeless(P4Array(withValueType: P4Array(withValueType: P4Int()))))
var test_values = VarValueScopes().enter()
let nested = P4ArrayValue(