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# File 'lib/jade/codegen.rb', line 82
def generate(node, registry, depth: 0)
case node
in AST::Module(name:, body:)
preamble = [
"require 'jade/runtime'",
*Stdlib.requires(name),
*namespace_setup_lines(name),
].reject(&:empty?).join(Pretty.newline)
shape_consts = collect_record_shapes(body)
.sort
.map { |keys|
"#{record_shape_constant(keys)} = Data.define(#{keys.map { ":#{it}" }.join(', ')})"
}
boundary_cache = Boundary::Cache.collect(body, registry)
boundary_consts = Boundary::Cache.constants(boundary_cache, registry)
boundary_helpers = Boundary::Specialized.collect_helpers(body, registry)
.then { Boundary::Specialized.emit_helpers(it, registry) }
outer, inner, wrappers =
with_boundary_cache(boundary_cache) do
with_dispatched_methods(collect_dispatched_methods(body, registry)) do
with_hoisted_records do
partition_module_body(body.expressions, registry, name.count('.'))
end
end
end
inner_module = ["extend self", *inner]
.join(Pretty.newline(2))
.then { Pretty.block("module Internal", it) }
[
"extend self",
*shape_consts,
*outer,
inner_module,
*boundary_consts,
*boundary_helpers,
*wrappers,
]
.reject(&:empty?)
.join(Pretty.newline(2))
.then { Pretty.block("module #{to_qualified(name)}", it) }
.then { [preamble, it].reject(&:empty?).join(Pretty.newline(2)) }
in AST::ImportDeclaration(module_name:)
entry = registry.get(module_name)
if Stdlib.is_stdlib?(entry)
""
else
entry.path
.then { relative_require(it, depth) }
.then { "require_relative '#{it}'" }
end
in AST::InteropImportDeclaration(module: mod)
Pretty.block("begin", "require '#{mod.name.gsub('::', '/').downcase}'\nrescue LoadError")
in AST::Implementation
Implementation.generate(node, registry)
in AST::Body(expressions:)
expressions
.map { generate(it, registry, depth:) }
.reject(&:empty?)
.join("\n")
in AST::VariableReference(name:) if name == self_var_name
'self'
in AST::VariableReference(symbol: ref, name:, dictionaries:)
resolved = ref.is_a?(Symbol::ValueRef) ? registry.lookup(ref) : ref
reference_emission(resolved, dictionaries, registry) do
case resolved
in Symbol::InteropFunction => sym
registry
.lookup(sym.to_ref)
.then { PortDecoder.task_call(it, registry) }
in Symbol::StdlibFunction(codegen:)
codegen
in Symbol::Function => fn
"#{to_qualified(fn.module_name)}::Internal.method(:#{fn.name})"
else
name
end
end
in AST::Assign(pattern:, expression:)
case pattern
in AST::Pattern::Binding(name:)
"#{name} = #{generate(expression, registry)}"
in AST::Pattern::Wildcard
generate(expression, registry)
else
"#{generate(expression, registry)} => #{generate(pattern, registry)}"
end
in AST::Literal(value:)
emit(value)
in AST::CharLiteral(value:)
emit(value)
in AST::FunctionDeclaration
FunctionDeclaration.generate(node, registry)
in AST::FunctionDeclarationParam(name:)
name
in AST::FunctionCall
FunctionCall.generate(node, registry)
in AST::ConstructorReference
ConstructorReference.generate(node, registry)
in AST::TypeDeclaration(variants:)
variants
.map { VariantDeclaration.generate(it, variants.map(&:name)) }
.join(Pretty.newline(2))
in AST::StructDeclaration(name:, record_type:, symbol:)
data_define_with_methods(name, record_type.fields.keys, "::#{to_qualified(symbol.qualified_name)}")
in AST::InterfaceDeclaration
""
in AST::QualifiedAccess(symbol:, dictionaries:)
resolved = registry.lookup(symbol)
reference_emission(resolved, dictionaries, registry) do
case resolved
in Symbol::StdlibFunction(codegen:)
codegen
in Symbol::Function => fn
"#{to_qualified(fn.module_name)}::Internal.method(:#{fn.name})"
in Symbol::Constructor => sym
ConstructorReference.from_symbol(sym)
end
end
in AST::IfThenElse(condition:, if_branch:, else_branch:)
[
"if (#{generate(condition, registry)})",
Pretty.indent(generate(if_branch, registry)),
"else",
Pretty.indent(generate(else_branch, registry)),
"end",
].join(Pretty.newline)
in AST::CaseOf(expression:, branches:)
branches
.map { generate(it, registry) }
.join("\n")
.then { "case #{generate(expression, registry)}\n#{it}\nend" }
in AST::CaseOfBranch(pattern:, body:)
pat = generate(pattern, registry)
body = generate(body, registry)
Pretty.multiline?(body) \
? "in #{pat} then\n#{Pretty.indent(body)}"
: "in #{pat} then #{body}"
in AST::Pattern::Literal(literal:)
generate(literal, registry)
in AST::Pattern::Wildcard
"_"
in AST::Pattern::Binding(name:)
name
in AST::Pattern::Record(fields:)
generate_many(fields, registry)
.then { "{ #{it} }"}
in AST::Pattern::RecordField(name:, pattern:)
"#{name}: #{generate(pattern, registry)}"
in AST::Pattern::List(patterns:, rest:)
rest_part =
case rest
in AST::Pattern::Binding(name:) then ["*#{name}"]
in AST::Pattern::Wildcard then ["*"]
in nil then []
end
Pretty.array(patterns.map { generate(it, registry) } + rest_part)
in AST::Pattern::Constructor
Pattern::Constructor.generate(node, registry)
in AST::Lambda(params:, body:)
param_strs = params.zip(0..).map { |p, i| param_name(p, i) }
params
.zip(0..)
.filter_map { |p, i| "#{param_synthetic_name(i)} => #{generate(p, registry)}" unless simple_pattern?(p) }
.then { (it + [generate(body, registry)]).join("\n") }
.then { Pretty.lambda(param_strs.join(', '), it) }
in AST::Grouping(expression:)
"(#{generate(expression, registry)})"
in AST::List(items:)
Pretty.array(items.map { generate(it, registry) })
in AST::RecordLiteral(fields:)
fields.sort_by(&:key).then do |sorted|
keys = sorted.map(&:key)
values = generate_many(sorted.map(&:value), registry)
hoist_records? \
? "#{record_shape_constant(keys)}[#{values}]"
: "Jade::Runtime.record(#{keys.map { ":#{it}" }.join(', ')})[#{values}]"
end
in AST::RecordField(key:, value:)
"#{key}: #{generate(value, registry)}"
in AST::RecordAccess(target:, name:)
if self_var_name && target.is_a?(AST::VariableReference) && target.name == self_var_name
name.name
else
"#{generate(target, registry)}.#{name.name}"
end
in AST::RecordUpdate(base:, fields:)
generate_many(fields, registry)
.then { "#{generate(base, registry)}.with(#{it})" }
end
end
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