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# File 'lib/jade/frontend/desugaring.rb', line 13
def desugar(node)
case node
in AST::Module(body:)
node.with(body: desugar(body))
in AST::Body(expressions:)
node.with(expressions: desugar_expressions(expressions))
in AST::InfixApplication(left:, right:, operator:)
case operator
in AST::InfixOperator(value: '|>')
case right
in AST::FunctionCall(args:)
right
.with(args: [left] + args)
.then { desugar(it) }
else
AST::FunctionCall.new(
callee: right,
args: [left],
infix: operator,
range: node.range,
)
end
.then { desugar(it) }
else
AST::FunctionCall.new(
callee: AST::VariableReference["(#{operator.value})", operator.range],
args: [desugar(left), desugar(right)],
infix: operator,
range: node.range,
)
end
in AST::FunctionCall(callee:, args:)
node
.with(callee: desugar(callee))
.with(args: args.map { desugar(it) })
.then { Placeholder.lift(it) }
in AST::KeyedCall(callee:, fields:)
node
.with(callee: desugar(callee))
.with(fields: fields.map { desugar(it) })
in AST::FunctionDeclaration(body:)
node
.with(body: desugar(body))
in AST::MemberAccess(target:)
node
.with(target: desugar(target))
in AST::CaseOf(expression:, branches:)
node
.with(expression: desugar(expression))
.with(branches: branches.map { desugar(it) })
in AST::CaseOfBranch(pattern:, body:)
node
.with(pattern: desugar(pattern))
.with(body: desugar(body))
in AST::IfThenElse(condition:, if_branch:, else_branch:)
node
.with(condition: desugar(condition))
.with(if_branch: desugar(if_branch))
.with(else_branch: desugar(else_branch))
in AST::Assign(pattern:, expression:)
node.with(pattern: desugar(pattern), expression: desugar(expression))
in AST::Grouping(expression:)
node.with(expression: desugar(expression))
in AST::Lambda(params:, body:)
node
.with(params: params.map { desugar(it) })
.with(body: desugar(body))
in AST::List(items:)
node
.with(items: items.map { desugar(it) })
in AST::RecordLiteral(fields:)
fields.map { desugar(it) }.then { node.with(fields: it) }
in AST::RecordUpdate(fields:)
fields.map { desugar(it) }.then { node.with(fields: it) }
in AST::RecordField(value:)
desugar(value).then { node.with(value: it) }
in AST::RecordAccessSugar(field_key:, range:)
AST::VariableReference['x', nil]
.then { AST::MemberAccess[it, AST::VariableReference[field_key, nil], range] }
.then { AST::Body[[it], nil] }
.then { AST::Lambda[[AST::Pattern::Binding['x', nil]], it, range] }
in AST::RecordUpdateSugar(field_key:, range:)
value_reference = AST::VariableReference['value', nil]
AST::VariableReference['x', nil]
.then { AST::RecordUpdate[it, [AST::RecordField[field_key, value_reference, nil]], range] }
.then { AST::Body[[it], nil] }
.then do |body|
AST::Lambda[
[
AST::Pattern::Binding['x', nil],
AST::Pattern::Binding[value_reference.name, nil],
],
body,
range,
]
end
in AST::Tuple(items:)
AST::FunctionCall.new(
callee: AST::ConstructorReference["Tuple.Tuple#{items.size}", node.range],
args: items.map { desugar(it) },
infix: false,
range: node.range,
)
in AST::Pattern::Tuple(patterns:)
AST::ConstructorReference[
"Tuple.Tuple#{patterns.size}",
node.range,
]
.then do
AST::Pattern::Constructor.new(
constructor: it,
patterns: patterns.map { desugar(it) },
range: node.range,
)
end
in AST::Pattern::Constructor(patterns:)
node.with(patterns: patterns.map { desugar(it) })
in AST::Pattern::Record(fields:)
fields
.map { it.with(pattern: desugar(it.pattern)) }
.then { node.with(fields: it) }
in AST::Pattern::List(patterns:, rest:)
node
.with(patterns: patterns.map { desugar(it) })
.with(rest: rest && desugar(rest))
in AST::Implementation(functions:)
functions
.map { desugar(it) }
.then { node.with(functions: it) }
in AST::ImplementationFunction(fn:)
node.with(fn: desugar(fn))
in AST::Literal | AST::CharLiteral | AST::VariableReference | AST::ConstructorReference |
AST::TypeDeclaration | AST::ImportDeclaration |
AST::Pattern::Literal | AST::Pattern::Binding | AST::Pattern::Wildcard |
AST::Pattern::Record | AST::InteropImportDeclaration | AST::StructDeclaration |
AST::QualifiedAccess | AST::Placeholder | AST::InterfaceDeclaration
node
end
end
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