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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/StructTests.swift
+10 -10
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@@ -45,7 +45,7 @@ import TreeSitterP4
P4StructFieldIdentifier(name: "count", withType: P4Int()),
])
let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(struct_type))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
@@ -139,7 +139,7 @@ import TreeSitterP4
P4StructFieldIdentifier(name: "count", withType: P4Int()),
])
let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(struct_type))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
@@ -174,7 +174,7 @@ import TreeSitterP4
P4StructFieldIdentifier(name: "count", withType: P4Int()),
])
let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(struct_type))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
@@ -208,7 +208,7 @@ import TreeSitterP4
P4StructFieldIdentifier(name: "count", withType: P4Int()),
])
let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(struct_type))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
@@ -248,7 +248,7 @@ import TreeSitterP4
let ts_fields = P4StructFields([P4StructFieldIdentifier(name: "ty", withType: ty_struct_type)])
let ts_struct_type = P4Struct(withName: Identifier(name: "outer"), andFields: ts_fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: ts_struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(ts_struct_type))
var test_values = VarValueScopes().enter()
@@ -290,7 +290,7 @@ import TreeSitterP4
P4StructFieldIdentifier(name: "count", withType: P4Int()),
])
let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(struct_type))
var test_values = VarValueScopes().enter()
test_values = test_values.declare(
@@ -322,7 +322,7 @@ import TreeSitterP4
P4StructFieldIdentifier(name: "count", withType: P4Int()),
])
let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(struct_type))
#expect(
#RequireErrorResult(
@@ -357,7 +357,7 @@ import TreeSitterP4
let ts_fields = P4StructFields([P4StructFieldIdentifier(name: "ty", withType: ty_struct_type)])
let ts_struct_type = P4Struct(withName: Identifier(name: "outer"), andFields: ts_fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: ts_struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(ts_struct_type))
var test_values = VarValueScopes().enter()
@@ -405,7 +405,7 @@ import TreeSitterP4
let ts_fields = P4StructFields([P4StructFieldIdentifier(name: "ty", withType: ty_struct_type)])
let ts_struct_type = P4Struct(withName: Identifier(name: "outer"), andFields: ts_fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: ts_struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(ts_struct_type))
var test_values = VarValueScopes().enter()
@@ -452,7 +452,7 @@ import TreeSitterP4
let ts_fields = P4StructFields([P4StructFieldIdentifier(name: "ty", withType: ty_struct_type)])
let ts_struct_type = P4Struct(withName: Identifier(name: "outer"), andFields: ts_fields)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: ts_struct_type)
test_declarations = test_declarations.declare(identifier: Identifier(name: "ts"), withValue: P4TypeAttributed.Attributeless(ts_struct_type))
#expect(
#RequireErrorResult(