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compiler.rs
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compiler.rs
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use super::builtins::exports::*;
use super::constants::exports::*;
use super::contexts::exports::*;
use super::conversions::exports::*;
use super::errors::exports::*;
use super::expressions::exports::*;
use super::primitives::exports::*;
use super::runtime::exports::*;
use super::values::exports::*;
#[ cfg ( feature = "vonuvoli_values_lambda" ) ]
use super::lambdas::exports::*;
use super::prelude::*;
pub mod exports {
pub use super::compile;
pub use super::compile_script;
pub use super::Compiler;
pub use super::CompilerConfiguration;
pub use super::CompilerContext;
pub use super::CompilerBindings;
pub use super::CompilerBinding;
#[ cfg ( feature = "vonuvoli_optimizer" ) ]
pub use super::super::compiler_optimizer::exports::*;
}
#[ cfg ( feature = "vonuvoli_compiler_trace_enabled" ) ]
#[ cfg ( feature = "vonuvoli_transcript" ) ]
def_transcript! (transcript);
pub fn compile (context : &Context, token : &Value, configuration : Option<&CompilerConfiguration>) -> (Outcome<Expression>) {
let configuration = configuration.cloned () .unwrap_or_default ();
return Compiler::new (configuration) .compile (Some (context), token);
}
pub fn compile_script (context : &Context, tokens : &[Value], configuration : Option<&CompilerConfiguration>) -> (Outcome<ExpressionVec>) {
let configuration = configuration.cloned () .unwrap_or_default ();
return Compiler::new (configuration) .compile_slice (Some (context), tokens);
}
pub struct Compiler {
configuration : CompilerConfiguration,
}
impl Compiler {
pub fn new (configuration : CompilerConfiguration) -> (Compiler) {
return Compiler {
configuration : configuration,
};
}
pub fn compile (&self, context : Option<&Context>, token : &Value) -> (Outcome<Expression>) {
let token = token.clone ();
let compilation = CompilerContext::new_with_context (context);
let (_compilation, expression) = r#try! (self.compile_0 (compilation, token));
succeed! (expression);
}
pub fn compile_slice (&self, context : Option<&Context>, tokens : &[Value]) -> (Outcome<ExpressionVec>) {
let tokens = vec_clone_slice (tokens);
let compilation = CompilerContext::new_with_context (context);
let (_compilation, expressions) = r#try! (self.compile_0_vec (compilation, tokens));
succeed! (expressions);
}
fn compile_0 (&self, compilation : CompilerContext, token : Value) -> (Outcome<(CompilerContext, Expression)>) {
#[ cfg ( feature = "vonuvoli_compiler_trace_enabled" ) ]
#[ cfg ( feature = "vonuvoli_transcript" ) ]
{ if self.configuration.is_trace_enabled () {
let token_input = token.clone ();
if self.configuration.should_trace_input () {
trace_debugging! (transcript, 0x1d44f3ad => "compiling:\u{1e}{}" => (&token_input));
}
let outcome = self.compile_00 (compilation, token);
match outcome {
Ok ((_, ref expression)) if self.configuration.should_trace_output () =>
trace_debugging! (transcript, 0x1307865e => "compiling succeeded:\u{1e}{}\u{1e}{:#?}" => (&token_input, expression)),
Ok (_) =>
(),
Err (ref error) if self.configuration.should_trace_output_or_error () && error.is_traceable () && !error.was_reported () =>
trace_error! (transcript, 0xb1511d7c => "compiling failed:\u{1e}{}" => (&token_input), error = error),
Err (_) =>
(),
}
return outcome;
} else {
return self.compile_00 (compilation, token);
} }
#[ cfg ( not ( all ( feature = "vonuvoli_compiler_trace_enabled", feature = "vonuvoli_transcript" ) ) ) ]
return self.compile_00 (compilation, token);
}
fn compile_00 (&self, compilation : CompilerContext, token : Value) -> (Outcome<(CompilerContext, Expression)>) {
match token.class_match_into () {
ValueClassMatchInto::Null =>
return self.compile_syntax_quote_0 (compilation, NULL_VALUE),
ValueClassMatchInto::Void =>
return self.compile_syntax_quote_0 (compilation, VOID_VALUE),
ValueClassMatchInto::Undefined =>
return self.compile_syntax_quote_0 (compilation, UNDEFINED_VALUE),
ValueClassMatchInto::Singleton (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
ValueClassMatchInto::Boolean (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
ValueClassMatchInto::Number (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
#[ cfg ( feature = "vonuvoli_values_string" ) ]
ValueClassMatchInto::Character (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
ValueClassMatchInto::Symbol (value) =>
return self.compile_symbol (compilation, value),
#[ cfg ( feature = "vonuvoli_values_keyword" ) ]
ValueClassMatchInto::Keyword (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
#[ cfg ( feature = "vonuvoli_values_unique" ) ]
ValueClassMatchInto::Unique (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
#[ cfg ( feature = "vonuvoli_values_string" ) ]
ValueClassMatchInto::String (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
#[ cfg ( feature = "vonuvoli_values_bytes" ) ]
ValueClassMatchInto::Bytes (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
#[ cfg ( feature = "vonuvoli_builtins_regex" ) ]
#[ cfg ( feature = "vonuvoli_values_string" ) ]
ValueClassMatchInto::StringRegex (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
#[ cfg ( feature = "vonuvoli_builtins_regex" ) ]
#[ cfg ( feature = "vonuvoli_values_bytes" ) ]
ValueClassMatchInto::BytesRegex (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
ValueClassMatchInto::Pair (class) =>
match class {
PairMatchInto::Immutable (value) =>
return self.compile_form (compilation, value),
#[ cfg ( feature = "vonuvoli_values_mutable" ) ]
PairMatchInto::Mutable (value) =>
return self.compile_form (compilation, r#try! (value.into_immutable ())),
},
#[ cfg ( feature = "vonuvoli_values_array" ) ]
ValueClassMatchInto::Array (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
#[ cfg ( feature = "vonuvoli_values_values" ) ]
ValueClassMatchInto::Values (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
#[ cfg ( feature = "vonuvoli_builtins_records" ) ]
ValueClassMatchInto::RecordKind (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
#[ cfg ( feature = "vonuvoli_builtins_records" ) ]
ValueClassMatchInto::Record (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
#[ cfg ( feature = "vonuvoli_values_error" ) ]
ValueClassMatchInto::Error (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
ValueClassMatchInto::Procedure (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
ValueClassMatchInto::Syntax (_class) =>
fail! (0xc617f3c7),
#[ cfg ( feature = "vonuvoli_builtins_filesystem" ) ]
ValueClassMatchInto::Path (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
#[ cfg ( feature = "vonuvoli_builtins_ports" ) ]
ValueClassMatchInto::Port (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
ValueClassMatchInto::Resource (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
ValueClassMatchInto::Internal (class) =>
return self.compile_syntax_quote_0 (compilation, class.value ()),
#[ cfg ( feature = "vonuvoli_values_opaque" ) ]
ValueClassMatchInto::Opaque (value) =>
return self.compile_syntax_quote_0 (compilation, value.into ()),
}
}
fn compile_0_vec (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, ExpressionVec)>) {
let mut expressions = ExpressionVec::with_capacity (tokens.len ());
let mut compilation = compilation;
for token in tokens {
let (compilation_1, expression) = r#try! (self.compile_0 (compilation, token));
compilation = compilation_1;
expressions.push (expression);
}
succeed! ((compilation, expressions));
}
fn compile_symbol (&self, compilation : CompilerContext, identifier : Symbol) -> (Outcome<(CompilerContext, Expression)>) {
let (compilation, binding) = r#try! (compilation.resolve (identifier));
let expression = r#try! (self.compile_syntax_binding_get (binding));
succeed! ((compilation, expression));
}
fn compile_form (&self, compilation : CompilerContext, form : PairImmutable) -> (Outcome<(CompilerContext, Expression)>) {
let (callable, arguments) = form.left_and_right_into ();
match r#try! (self.compile_form_match_callable (compilation, callable)) {
(compilation, Alternative2::Variant1 (syntax)) =>
return self.compile_syntax_call (compilation, syntax, arguments),
(compilation, Alternative2::Variant2 (callable)) =>
return self.compile_procedure_call (compilation, callable, arguments),
}
}
fn compile_form_match_callable (&self, compilation : CompilerContext, callable : Value) -> (Outcome<(CompilerContext, Alternative2<SyntaxPrimitive, Value>)>) {
match callable.class_match_into () {
ValueClassMatchInto::Symbol (symbol) => {
let (compilation, callable) = r#try! (compilation.resolve_value (symbol.clone ()));
if let Some (callable) = callable {
let class = callable.class_match_into ();
return self.compile_form_match_class (compilation, class);
} else {
succeed! ((compilation, Alternative2::Variant2 (symbol.into ())));
}
},
class =>
return self.compile_form_match_class (compilation, class),
}
}
fn compile_form_match_class (&self, compilation : CompilerContext, class : ValueClassMatchInto) -> (Outcome<(CompilerContext, Alternative2<SyntaxPrimitive, Value>)>) {
match class {
ValueClassMatchInto::Syntax (class) =>
match class {
SyntaxMatchInto::Primitive (syntax) =>
succeed! ((compilation, Alternative2::Variant1 (syntax))),
#[ cfg ( feature = "vonuvoli_values_extended" ) ]
SyntaxMatchInto::Extended (_syntax) =>
fail_unimplemented! (0xb9915ee0, (github_issue, 45)),
#[ cfg ( feature = "vonuvoli_values_native" ) ]
SyntaxMatchInto::Native (_syntax) =>
fail_unimplemented! (0x09bdd94b, (github_issue, 45)),
#[ cfg ( feature = "vonuvoli_values_lambda" ) ]
SyntaxMatchInto::Lambda (_syntax) =>
fail_unimplemented! (0xd3517f42, (github_issue, 46)),
},
class =>
succeed! ((compilation, Alternative2::Variant2 (class.value ()))),
}
}
fn compile_procedure_call (&self, compilation : CompilerContext, procedure : Value, arguments : Value) -> (Outcome<(CompilerContext, Expression)>) {
let arguments = r#try! (vec_list_clone (&arguments));
return self.compile_procedure_call_0 (compilation, procedure, arguments);
}
fn compile_procedure_call_0 (&self, compilation : CompilerContext, procedure : Value, arguments : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
let (compilation, procedure) = r#try! (self.compile_0 (compilation, procedure));
let (compilation, arguments) = r#try! (self.compile_0_vec (compilation, arguments));
let expression = ExpressionForProcedureGenericCall::ProcedureCall (procedure.into (), arguments.into_boxed_slice ()) .into ();
succeed! ((compilation, expression));
}
fn compile_syntax_call (&self, compilation : CompilerContext, syntax : SyntaxPrimitive, tokens : Value) -> (Outcome<(CompilerContext, Expression)>) {
let tokens = r#try! (vec_list_clone (&tokens));
match syntax {
SyntaxPrimitive::PrimitiveV (syntax) =>
match syntax {
SyntaxPrimitiveV::Quote =>
return self.compile_syntax_quote (compilation, tokens),
SyntaxPrimitiveV::QuasiQuote =>
return self.compile_syntax_quasi_quote (compilation, tokens),
SyntaxPrimitiveV::UnQuote |
SyntaxPrimitiveV::UnQuoteSplicing =>
fail! (0x99b4857b),
SyntaxPrimitiveV::Begin =>
return self.compile_syntax_sequence (compilation, ExpressionSequenceOperator::ReturnLast, tokens),
SyntaxPrimitiveV::And =>
return self.compile_syntax_sequence (compilation, ExpressionSequenceOperator::And, tokens),
SyntaxPrimitiveV::Or =>
return self.compile_syntax_sequence (compilation, ExpressionSequenceOperator::Or, tokens),
SyntaxPrimitiveV::If =>
return self.compile_syntax_if (compilation, tokens),
SyntaxPrimitiveV::When |
SyntaxPrimitiveV::Unless =>
return self.compile_syntax_when_unless (compilation, syntax, tokens),
SyntaxPrimitiveV::Cond =>
return self.compile_syntax_cond (compilation, tokens),
#[ cfg ( feature = "vonuvoli_builtins_comparisons" ) ]
SyntaxPrimitiveV::Case =>
return self.compile_syntax_case (compilation, tokens),
SyntaxPrimitiveV::Do =>
return self.compile_syntax_do (compilation, tokens, false),
SyntaxPrimitiveV::DoCond =>
return self.compile_syntax_do (compilation, tokens, true),
SyntaxPrimitiveV::While =>
return self.compile_syntax_while (compilation, tokens, false, false),
SyntaxPrimitiveV::Until =>
return self.compile_syntax_while (compilation, tokens, true, false),
SyntaxPrimitiveV::WhileCond =>
return self.compile_syntax_while (compilation, tokens, false, true),
SyntaxPrimitiveV::UntilCond =>
return self.compile_syntax_while (compilation, tokens, true, true),
SyntaxPrimitiveV::Loop =>
return self.compile_syntax_loop (compilation, tokens),
#[ cfg ( feature = "vonuvoli_values_error" ) ]
SyntaxPrimitiveV::Guard =>
return self.compile_syntax_guard (compilation, tokens),
#[ cfg ( feature = "vonuvoli_values_error" ) ]
SyntaxPrimitiveV::GuardCond =>
return self.compile_syntax_guard_cond (compilation, tokens),
SyntaxPrimitiveV::Locals =>
return self.compile_syntax_locals (compilation, tokens),
SyntaxPrimitiveV::LetParallel |
SyntaxPrimitiveV::LetSequential |
SyntaxPrimitiveV::LetRecursiveParallel |
SyntaxPrimitiveV::LetRecursiveSequential =>
return self.compile_syntax_let (compilation, syntax, tokens),
#[ cfg ( feature = "vonuvoli_values_values" ) ]
SyntaxPrimitiveV::LetValuesParallel |
SyntaxPrimitiveV::LetValuesSequential =>
return self.compile_syntax_let_values (compilation, syntax, tokens),
#[ cfg ( feature = "vonuvoli_builtins_parameters" ) ]
SyntaxPrimitiveV::LetParameters =>
return self.compile_syntax_let_parameters (compilation, tokens),
SyntaxPrimitiveV::Define =>
return self.compile_syntax_define (compilation, tokens, false),
SyntaxPrimitiveV::ReDefine =>
return self.compile_syntax_define (compilation, tokens, true),
#[ cfg ( feature = "vonuvoli_values_values" ) ]
SyntaxPrimitiveV::DefineValues =>
return self.compile_syntax_define_values (compilation, tokens, false),
#[ cfg ( feature = "vonuvoli_values_values" ) ]
SyntaxPrimitiveV::ReDefineValues =>
return self.compile_syntax_define_values (compilation, tokens, true),
SyntaxPrimitiveV::Set =>
return self.compile_syntax_set (compilation, tokens),
#[ cfg ( feature = "vonuvoli_values_values" ) ]
SyntaxPrimitiveV::SetValues =>
return self.compile_syntax_set_values (compilation, tokens),
#[ cfg ( feature = "vonuvoli_values_lambda" ) ]
SyntaxPrimitiveV::Lambda =>
return self.compile_syntax_lambda (compilation, None, tokens),
#[ cfg ( feature = "vonuvoli_builtins_records" ) ]
SyntaxPrimitiveV::DefineRecord =>
return self.compile_syntax_define_record (compilation, tokens),
},
SyntaxPrimitive::Auxiliary =>
fail! (0xc64adbb8),
SyntaxPrimitive::Unimplemented =>
fail_unimplemented! (0xa4e41f62, github_issue_new),
SyntaxPrimitive::Unsupported =>
fail_unimplemented! (0x175a7f9e, github_issue_new),
SyntaxPrimitive::Reserved =>
fail! (0x1aed14f3),
}
}
fn compile_syntax_sequence (&self, compilation : CompilerContext, operator : ExpressionSequenceOperator, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
let (compilation, statements) = match operator {
ExpressionSequenceOperator::ReturnFirst | ExpressionSequenceOperator::ReturnLast =>
r#try! (self.compile_0_vec (compilation, tokens)),
ExpressionSequenceOperator::And | ExpressionSequenceOperator::Or => {
let compilation = r#try! (compilation.define_disable ());
let (compilation, statements) = r#try! (self.compile_0_vec (compilation, tokens));
let compilation = r#try! (compilation.define_enable ());
(compilation, statements)
},
};
let expression = Expression::Sequence (operator, statements.into_boxed_slice ());
succeed! ((compilation, expression));
}
fn compile_syntax_if (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
let tokens_count = tokens.len ();
if (tokens_count != 2) && (tokens_count != 3) {
fail! (0xe34389a7);
}
let compilation = r#try! (compilation.define_disable ());
let (compilation, statements) = r#try! (self.compile_0_vec (compilation, tokens));
let compilation = r#try! (compilation.define_enable ());
let clauses = if tokens_count == 3 {
let (guard, if_true, if_false) = r#try! (vec_explode_3 (statements));
vec! [
ExpressionConditionalIfClause::GuardAndExpression (
ExpressionConditionalIfGuard::Expression (guard, false),
ExpressionValueConsumer::Ignore,
if_true),
ExpressionConditionalIfClause::GuardAndExpression (
ExpressionConditionalIfGuard::Expression (TRUE_VALUE.into (), false),
ExpressionValueConsumer::Ignore,
if_false),
]
} else if tokens_count == 2 {
let (guard, if_true) = r#try! (vec_explode_2 (statements));
vec! [
ExpressionConditionalIfClause::GuardAndExpression (
ExpressionConditionalIfGuard::Expression (guard, false),
ExpressionValueConsumer::Ignore,
if_true),
]
} else {
fail_unreachable! (0xbc801c5d, github_issue_new);
};
let clauses = ExpressionConditionalIfClauses::Multiple (clauses.into_boxed_slice ());
let expression = Expression::ConditionalIf (clauses);
succeed! ((compilation, expression));
}
fn compile_syntax_when_unless (&self, compilation : CompilerContext, syntax : SyntaxPrimitiveV, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
let tokens_count = tokens.len ();
if tokens_count < 2 {
fail! (0x3c364a9f);
}
let compilation = r#try! (compilation.define_disable ());
let (compilation, statements) = r#try! (self.compile_0_vec (compilation, tokens));
let compilation = r#try! (compilation.define_enable ());
let (guard, statements) = r#try! (vec_explode_1n (statements));
let statements = Expression::Sequence (ExpressionSequenceOperator::ReturnLast, statements.into_boxed_slice ());
let negated = match syntax {
SyntaxPrimitiveV::When =>
false,
SyntaxPrimitiveV::Unless =>
true,
_ =>
fail_unreachable! (0x500d298f, github_issue_new),
};
let clauses = vec! [
ExpressionConditionalIfClause::GuardAndExpression (
ExpressionConditionalIfGuard::Expression (guard, negated),
ExpressionValueConsumer::Ignore,
statements),
];
let clauses = ExpressionConditionalIfClauses::Multiple (clauses.into_boxed_slice ());
let expression = Expression::ConditionalIf (clauses);
succeed! ((compilation, expression));
}
fn compile_syntax_cond (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
let (compilation, clauses) = r#try! (self.compile_syntax_cond_clauses (compilation, tokens, false));
let clauses = ExpressionConditionalIfClauses::Multiple (clauses.into_boxed_slice ());
let expression = Expression::ConditionalIf (clauses);
succeed! ((compilation, expression));
}
fn compile_syntax_cond_clauses (&self, compilation : CompilerContext, tokens : ValueVec, negated : bool) -> (Outcome<(CompilerContext, StdVec<ExpressionConditionalIfClause>)>) {
let mut compilation = r#try! (compilation.define_disable ());
let mut clauses = StdVec::new ();
for tokens in tokens {
let tokens = r#try! (vec_list_clone (&tokens));
if tokens.is_empty () {
fail! (0x86331f4b);
}
let (guard, statements) = r#try! (vec_explode_1n (tokens));
let (compilation_1, guard) = if ! is_symbol_eq ("else", &guard) {
let (compilation_1, guard) = r#try! (self.compile_0 (compilation, guard));
let guard = ExpressionConditionalIfGuard::Expression (guard, negated);
(compilation_1, guard)
} else {
let guard = ExpressionConditionalIfGuard::Expression (TRUE_VALUE.into (), false);
(compilation, guard)
};
let (compilation_1, guard_consumer) = if ! statements.is_empty () && is_symbol_eq ("=>", &statements[0]) {
fail_unimplemented! (0xfa332991, (github_issue, 24));
} else {
(compilation_1, ExpressionValueConsumer::Ignore)
};
let (compilation_1, statements) = r#try! (self.compile_0_vec (compilation_1, statements));
let clause = if ! statements.is_empty () {
let statements = Expression::Sequence (ExpressionSequenceOperator::ReturnLast, statements.into_boxed_slice ());
ExpressionConditionalIfClause::GuardAndExpression (guard, guard_consumer, statements)
} else {
ExpressionConditionalIfClause::GuardOnly (guard, ExpressionValueConsumer::Return)
};
clauses.push (clause);
compilation = compilation_1;
}
let compilation = r#try! (compilation.define_enable ());
succeed! ((compilation, clauses));
}
#[ cfg ( feature = "vonuvoli_builtins_comparisons" ) ]
fn compile_syntax_case (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
if tokens.is_empty () {
fail! (0xeb8569a2);
}
let (actual, tokens) = r#try! (vec_explode_1n (tokens));
let compilation = r#try! (compilation.define_disable ());
let (compilation, actual) = r#try! (self.compile_0 (compilation, actual));
let compilation = r#try! (compilation.define_enable ());
let (compilation, clauses) = r#try! (self.compile_syntax_case_clauses (compilation, tokens, false));
let clauses = ExpressionConditionalMatchClauses::Multiple (clauses.into_boxed_slice ());
let expression = Expression::ConditionalMatch (actual.into (), clauses);
succeed! ((compilation, expression));
}
#[ cfg ( feature = "vonuvoli_builtins_comparisons" ) ]
fn compile_syntax_case_clauses (&self, compilation : CompilerContext, tokens : ValueVec, negated : bool) -> (Outcome<(CompilerContext, StdVec<ExpressionConditionalMatchClause>)>) {
let mut compilation = r#try! (compilation.define_disable ());
let mut clauses = StdVec::new ();
for tokens in tokens {
let tokens = r#try! (vec_list_clone (&tokens));
if tokens.is_empty () {
fail! (0x17388f6a);
}
let (expected, statements) = r#try! (vec_explode_1n (tokens));
let guard = if ! is_symbol_eq ("else", &expected) {
let expected = r#try! (vec_list_clone (&expected));
ExpressionConditionalMatchGuard::Values (expected.into_boxed_slice (), negated)
} else {
ExpressionConditionalMatchGuard::True
};
let (compilation_1, guard_consumer) = if ! statements.is_empty () && is_symbol_eq ("=>", &statements[0]) {
fail_unimplemented! (0xef5d468c, (github_issue, 24));
} else {
(compilation, ExpressionValueConsumer::Ignore)
};
let (compilation_1, statements) = r#try! (self.compile_0_vec (compilation_1, statements));
let clause = if ! statements.is_empty () {
let statements = Expression::Sequence (ExpressionSequenceOperator::ReturnLast, statements.into_boxed_slice ());
ExpressionConditionalMatchClause::GuardAndExpression (guard, guard_consumer, statements)
} else {
ExpressionConditionalMatchClause::GuardOnly (guard, ExpressionValueConsumer::Return)
};
clauses.push (clause);
compilation = compilation_1;
}
let compilation = r#try! (compilation.define_enable ());
succeed! ((compilation, clauses));
}
fn compile_syntax_do (&self, compilation : CompilerContext, tokens : ValueVec, break_uses_cond : bool) -> (Outcome<(CompilerContext, Expression)>) {
let (definitions, break_statements, loop_statements) = r#try! (vec_explode_2n (tokens));
let definitions = r#try! (vec_list_clone (&definitions));
let mut identifiers = StdVec::with_capacity (definitions.len ());
let mut initializers = StdVec::with_capacity (definitions.len ());
let mut updaters = StdVec::with_capacity (definitions.len ());
for definition in definitions {
let definition = r#try! (vec_list_clone (&definition));
let (identifier, initializer, updater) = match definition.len () {
2 => {
let (identifier, initializer) = r#try! (vec_explode_2 (definition));
(identifier, initializer, None)
},
3 => {
let (identifier, initializer, updater) = r#try! (vec_explode_3 (definition));
(identifier, initializer, Some (updater))
},
_ =>
fail! (0x0735df7b),
};
let identifier = try_into_symbol! (identifier);
let updater = if let Some (updater) = updater {
updater
} else {
identifier.clone () .into ()
};
identifiers.push (identifier);
initializers.push (initializer);
updaters.push (updater);
}
let (compilation, has_definitions) = if identifiers.is_empty () {
(compilation, false)
} else {
let compilation = r#try! (compilation.fork_locals (true));
(compilation, true)
};
let (compilation, binding_initializers, binding_updaters) = if has_definitions {
let mut binding_templates = StdVec::new ();
let mut binding_initializers = StdVec::new ();
let mut binding_updaters = StdVec::new ();
let mut compilation = compilation;
for initializer in initializers {
let compilation_1 = r#try! (compilation.define_disable ());
let (compilation_1, initializer) = r#try! (self.compile_0 (compilation_1, initializer));
compilation = r#try! (compilation_1.define_enable ());
binding_initializers.push (initializer);
}
for identifier in identifiers {
let (compilation_1, binding) = r#try! (compilation.define (identifier));
compilation = compilation_1;
binding_templates.push (binding);
}
for updater in updaters {
let compilation_1 = r#try! (compilation.define_disable ());
let (compilation_1, updater) = r#try! (self.compile_0 (compilation_1, updater));
compilation = r#try! (compilation_1.define_enable ());
binding_updaters.push (updater);
}
let binding_initializers = r#try! (self.compile_syntax_binding_set_n (binding_templates.clone (), binding_initializers, true, true));
let binding_updaters = r#try! (self.compile_syntax_binding_set_n (binding_templates.clone (), binding_updaters, true, false));
(compilation, Some (binding_initializers.into ()), Some (binding_updaters.into ()))
} else {
(compilation, None, None)
};
let break_statements = r#try! (vec_list_clone (&break_statements));
let (compilation, break_clauses) = if break_uses_cond {
let (compilation, break_clauses) = r#try! (self.compile_syntax_cond_clauses (compilation, break_statements, false));
let break_clauses = ExpressionConditionalIfClauses::Multiple (break_clauses.into_boxed_slice ());
(compilation, Some (break_clauses))
} else if ! break_statements.is_empty () {
let (break_guard, break_statements) = r#try! (vec_explode_1n (break_statements));
let compilation = r#try! (compilation.define_disable ());
let (compilation, break_guard) = r#try! (self.compile_0 (compilation, break_guard));
let compilation = r#try! (compilation.define_enable ());
let break_guard = ExpressionConditionalIfGuard::Expression (break_guard, false);
let (compilation, break_clause) = if break_statements.is_empty () {
let clause = ExpressionConditionalIfClause::GuardOnly (break_guard, ExpressionValueConsumer::Return);
(compilation, clause)
} else {
FIXME! ("add support for `(guard => expression)` just like for `cond`");
let compilation = r#try! (compilation.define_disable ());
let (compilation, break_statements) = r#try! (self.compile_0_vec (compilation, break_statements));
let compilation = r#try! (compilation.define_enable ());
let break_statements = Expression::Sequence (ExpressionSequenceOperator::ReturnLast, break_statements.into_boxed_slice ());
let clause = ExpressionConditionalIfClause::GuardAndExpression (break_guard, ExpressionValueConsumer::Ignore, break_statements);
(compilation, clause)
};
let break_clauses = ExpressionConditionalIfClauses::Multiple (StdBox::new ([break_clause]));
(compilation, Some (break_clauses))
} else {
(compilation, None)
};
let (compilation, loop_statement) = r#try! (self.compile_syntax_loop_statements (compilation, loop_statements));
let loop_statement = option_box_new (loop_statement);
let expression = Expression::Loop (binding_initializers, binding_updaters, loop_statement, break_clauses);
let (compilation, expression) = if has_definitions {
let (compilation, registers) = r#try! (compilation.unfork_locals ());
let expression = ExpressionForContexts::RegisterClosure (expression.into (), registers.into_boxed_slice ()) .into ();
(compilation, expression)
} else {
(compilation, expression)
};
succeed! ((compilation, expression));
}
fn compile_syntax_while (&self, compilation : CompilerContext, tokens : ValueVec, negated : bool, break_uses_cond : bool) -> (Outcome<(CompilerContext, Expression)>) {
let (break_guard, loop_statements) = r#try! (vec_explode_1n (tokens));
let (compilation, break_clauses) = if break_uses_cond {
let break_clauses = r#try! (vec_list_clone (&break_guard));
let (compilation, break_clauses) = r#try! (self.compile_syntax_cond_clauses (compilation, break_clauses, ! negated));
let break_clauses = ExpressionConditionalIfClauses::Multiple (break_clauses.into_boxed_slice ());
(compilation, break_clauses)
} else {
let compilation = r#try! (compilation.define_disable ());
let (compilation, break_guard) = r#try! (self.compile_0 (compilation, break_guard));
let compilation = r#try! (compilation.define_enable ());
let break_guard = ExpressionConditionalIfGuard::Expression (break_guard, ! negated);
let break_clause = ExpressionConditionalIfClause::GuardOnly (break_guard, ExpressionValueConsumer::Return);
let break_clauses = ExpressionConditionalIfClauses::Multiple (StdBox::new ([break_clause]));
(compilation, break_clauses)
};
let (compilation, loop_statement) = r#try! (self.compile_syntax_loop_statements (compilation, loop_statements));
let loop_statement = option_box_new (loop_statement);
let expression = Expression::Loop (None, None, loop_statement, Some (break_clauses));
succeed! ((compilation, expression));
}
fn compile_syntax_loop (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
let (compilation, loop_statement) = r#try! (self.compile_syntax_loop_statements (compilation, tokens));
let loop_statement = option_box_new (loop_statement);
let expression = Expression::Loop (None, None, loop_statement, None);
succeed! ((compilation, expression));
}
fn compile_syntax_loop_statements (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Option<Expression>)>) {
let (compilation, loop_statement) = if tokens.is_empty () {
(compilation, None)
} else {
let compilation = r#try! (compilation.define_disable ());
let (compilation, loop_statements) = r#try! (self.compile_0_vec (compilation, tokens));
let compilation = r#try! (compilation.define_enable ());
let loop_statements = Expression::Sequence (ExpressionSequenceOperator::ReturnLast, loop_statements.into_boxed_slice ());
(compilation, Some (loop_statements))
};
succeed! ((compilation, loop_statement));
}
#[ cfg ( feature = "vonuvoli_values_error" ) ]
fn compile_syntax_guard (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
match tokens.len () {
0 =>
fail! (0x4065b3e7),
1 => {
let token = r#try! (vec_explode_1 (tokens));
return self.compile_syntax_guard_return (compilation, token);
},
3 =>
(),
_ =>
fail! (0xa6056cfd),
}
let (error_identifier, statement, error_statement) = r#try! (vec_explode_3 (tokens));
let error_identifier = try_into_symbol! (error_identifier);
let compilation = r#try! (compilation.fork_locals (true));
let compilation = r#try! (compilation.define_disable ());
let (compilation, statement) = r#try! (self.compile_0 (compilation, statement));
let compilation = r#try! (compilation.define_enable ());
let (compilation, error_binding) = r#try! (compilation.define (error_identifier));
let compilation = r#try! (compilation.define_disable ());
let (compilation, error_statement) = r#try! (self.compile_0 (compilation, error_statement));
let compilation = r#try! (compilation.define_enable ());
let (compilation, registers) = r#try! (compilation.unfork_locals ());
let error_consumer = r#try! (self.compile_syntax_binding_consumer (error_binding));
let expression = Expression::ErrorCatch (statement.into (), error_consumer, error_statement.into ());
let expression = ExpressionForContexts::RegisterClosure (expression.into (), registers.into_boxed_slice ()) .into ();
succeed! ((compilation, expression));
}
#[ cfg ( feature = "vonuvoli_values_error" ) ]
fn compile_syntax_guard_cond (&self, compilation : CompilerContext, tokens : ValueVec) -> (Outcome<(CompilerContext, Expression)>) {
match tokens.len () {
0 =>
fail! (0xa10959b0),
1 => {
let token = r#try! (vec_explode_1 (tokens));
return self.compile_syntax_guard_return (compilation, token);
},
_ =>
(),
}
let (error_handler, statements) = r#try! (vec_explode_1n (tokens));
let error_handler = r#try! (vec_list_clone (&error_handler));
let (error_identifier, error_clauses) = r#try! (vec_explode_1n (error_handler));
let error_identifier = try_into_symbol! (error_identifier);
let compilation = r#try! (compilation.fork_locals (true));
let compilation = r#try! (compilation.define_disable ());
let (compilation, statements) = r#try! (self.compile_0_vec (compilation, statements));