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Create local functions to validate the RawSyntax layout of nodes #2908

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Merged
merged 1 commit into from
Dec 6, 2024
Merged

Create local functions to validate the RawSyntax layout of nodes #2908

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120 changes: 64 additions & 56 deletions ...eration/Sources/generate-swift-syntax/templates/swiftsyntax/RawSyntaxValidationFile.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -190,75 +190,83 @@ let rawSyntaxValidationFile = try! SourceFileSyntax(leadingTrivia: copyrightHead
"""#
)

try SwitchExprSyntax("switch kind") {
SwitchCaseSyntax(
"""
case .token:
assertionFailure("validateLayout for .token kind is not supported")
"""
)

for node in NON_BASE_SYNTAX_NODES {
try SwitchCaseSyntax("case .\(node.enumCaseCallName):") {
if let node = node.layoutNode {
ExprSyntax("assert(layout.count == \(raw: node.children.count))")
for (index, child) in node.children.enumerated() {
switch child.kind {
case .nodeChoices(let choices, _):
let verifiedChoices = ArrayExprSyntax {
ArrayElementSyntax(
leadingTrivia: .newline,
expression: ExprSyntax(
"verify(layout[\(raw: index)], as: Raw\(child.buildableType.buildable).self)"
)
for node in NON_BASE_SYNTAX_NODES {
try FunctionDeclSyntax(
"func validate\(node.kind.syntaxType)(kind: SyntaxKind, layout: RawSyntaxBuffer)"
) {
if let node = node.layoutNode {
ExprSyntax("assert(layout.count == \(raw: node.children.count))")
for (index, child) in node.children.enumerated() {
switch child.kind {
case .nodeChoices(let choices, _):
let verifiedChoices = ArrayExprSyntax {
ArrayElementSyntax(
leadingTrivia: .newline,
expression: ExprSyntax(
"verify(layout[\(raw: index)], as: Raw\(child.buildableType.buildable).self)"
)
}
)
}

ExprSyntax("assertAnyHasNoError(kind, \(raw: index), \(verifiedChoices))")
case .token(choices: let choices, requiresLeadingSpace: _, requiresTrailingSpace: _):
let choices = ArrayExprSyntax {
for choice in choices {
switch choice {
case .keyword(let keyword):
ArrayElementSyntax(expression: ExprSyntax(".keyword(\(literal: keyword.spec.name))"))
case .token(let token):
ArrayElementSyntax(expression: ExprSyntax(".tokenKind(.\(token.spec.memberCallName))"))
}
ExprSyntax("assertAnyHasNoError(kind, \(raw: index), \(verifiedChoices))")
case .token(choices: let choices, requiresLeadingSpace: _, requiresTrailingSpace: _):
let choices = ArrayExprSyntax {
for choice in choices {
switch choice {
case .keyword(let keyword):
ArrayElementSyntax(expression: ExprSyntax(".keyword(\(literal: keyword.spec.name))"))
case .token(let token):
ArrayElementSyntax(expression: ExprSyntax(".tokenKind(.\(token.spec.memberCallName))"))
}
}
let verifyCall = ExprSyntax(
"verify(layout[\(raw: index)], as: Raw\(child.buildableType.buildable).self, tokenChoices: \(choices))"
)
ExprSyntax("assertNoError(kind, \(raw: index), \(verifyCall))")
default:
ExprSyntax(
"assertNoError(kind, \(raw: index), verify(layout[\(raw: index)], as: Raw\(child.buildableType.buildable).self))"
)
}
let verifyCall = ExprSyntax(
"verify(layout[\(raw: index)], as: Raw\(child.buildableType.buildable).self, tokenChoices: \(choices))"
)
ExprSyntax("assertNoError(kind, \(raw: index), \(verifyCall))")
default:
ExprSyntax(
"assertNoError(kind, \(raw: index), verify(layout[\(raw: index)], as: Raw\(child.buildableType.buildable).self))"
)
}
} else if let node = node.collectionNode {
try ForStmtSyntax("for (index, element) in layout.enumerated()") {
if let onlyElement = node.elementChoices.only {
ExprSyntax(
"assertNoError(kind, index, verify(element, as: \(onlyElement.raw.syntaxType).self))"
)
} else {
let verifiedChoices = ArrayExprSyntax {
for choiceName in node.elementChoices {
let choice = SYNTAX_NODE_MAP[choiceName]!
ArrayElementSyntax(
leadingTrivia: .newline,
expression: ExprSyntax("verify(element, as: \(choice.kind.raw.syntaxType).self)")
)
}
}
} else if let node = node.collectionNode {
try ForStmtSyntax("for (index, element) in layout.enumerated()") {
if let onlyElement = node.elementChoices.only {
ExprSyntax(
"assertNoError(kind, index, verify(element, as: \(onlyElement.raw.syntaxType).self))"
)
} else {
let verifiedChoices = ArrayExprSyntax {
for choiceName in node.elementChoices {
let choice = SYNTAX_NODE_MAP[choiceName]!
ArrayElementSyntax(
leadingTrivia: .newline,
expression: ExprSyntax("verify(element, as: \(choice.kind.raw.syntaxType).self)")
)
}
ExprSyntax("assertAnyHasNoError(kind, index, \(verifiedChoices))")
}
ExprSyntax("assertAnyHasNoError(kind, index, \(verifiedChoices))")
}
}
}
}
}

try SwitchExprSyntax("switch kind") {
SwitchCaseSyntax(
"""
case .token:
assertionFailure("validateLayout for .token kind is not supported")
"""
)

for node in NON_BASE_SYNTAX_NODES {
SwitchCaseSyntax("case .\(node.enumCaseCallName):") {
ExprSyntax("validate\(node.kind.syntaxType)(kind: kind, layout: layout)")
}
}
}
}
)
)
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