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selfhost/runtime: Stage 0-1 runner + MIR JSON loader (summary) with trace; compiler: scopebox/loopform prepass wiring (flags, child args); libs: add P1 standard boxes (console/string/array/map) as thin wrappers; runner: pass --box-pref via env; ops_calls dispatcher skeleton; docs: selfhost executor roadmap + scopebox/loopform notes; smokes: selfhost runner + identity prepasses; CURRENT_TASK: update plan and box lib schedule

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This commit is contained in:
Selfhosting Dev
2025-09-22 21:52:39 +09:00
parent b00dc4ec37
commit da78fc174b
72 changed files with 3163 additions and 2557 deletions
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376
src/parser/statements.rs
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@ -11,6 +11,78 @@ use crate::ast::{ASTNode, CatchClause, Span};
use crate::tokenizer::TokenType;
impl NyashParser {
/// Parse a standalone block `{ ... }` and optional postfix `catch/cleanup` sequence.
/// Returns Program(body) when no postfix keywords follow.
fn parse_standalone_block_statement(&mut self) -> Result<ASTNode, ParseError> {
// Parse the block body first
let try_body = self.parse_block_statements()?;
// Allow whitespace/newlines between block and postfix keywords
self.skip_newlines();
if crate::config::env::block_postfix_catch()
&& (self.match_token(&TokenType::CATCH) || self.match_token(&TokenType::CLEANUP))
{
// Parse at most one catch, then optional cleanup
let mut catch_clauses: Vec<CatchClause> = Vec::new();
if self.match_token(&TokenType::CATCH) {
self.advance(); // consume 'catch'
self.consume(TokenType::LPAREN)?;
let (exception_type, exception_var) = self.parse_catch_param()?;
self.consume(TokenType::RPAREN)?;
let catch_body = self.parse_block_statements()?;
catch_clauses.push(CatchClause {
exception_type,
variable_name: exception_var,
body: catch_body,
span: Span::unknown(),
});
// Single‑catch policy (MVP): disallow multiple catch in postfix form
self.skip_newlines();
if self.match_token(&TokenType::CATCH) {
let line = self.current_token().line;
return Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "single catch only after standalone block".to_string(),
line,
});
}
}
// Optional cleanup
let finally_body = if self.match_token(&TokenType::CLEANUP) {
self.advance(); // consume 'cleanup'
Some(self.parse_block_statements()?)
} else {
None
};
Ok(ASTNode::TryCatch {
try_body,
catch_clauses,
finally_body,
span: Span::unknown(),
})
} else {
// No postfix keywords. If gate is on, enforce MVP static check:
// direct top-level `throw` inside the standalone block must be followed by catch
if crate::config::env::block_postfix_catch()
&& try_body.iter().any(|n| matches!(n, ASTNode::Throw { .. }))
{
let line = self.current_token().line;
return Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "block with direct 'throw' must be followed by 'catch'".to_string(),
line,
});
}
Ok(ASTNode::Program {
statements: try_body,
span: Span::unknown(),
})
}
}
/// Helper: parse a block `{ stmt* }` and return its statements
pub(super) fn parse_block_statements(&mut self) -> Result<Vec<ASTNode>, ParseError> {
self.consume(TokenType::LBRACE)?;
@ -25,6 +97,151 @@ impl NyashParser {
Ok(body)
}
/// Grouped: declarations (box/interface/global/function/static/import)
fn parse_declaration_statement(&mut self) -> Result<ASTNode, ParseError> {
match &self.current_token().token_type {
TokenType::BOX => self.parse_box_declaration(),
TokenType::IMPORT => self.parse_import(),
TokenType::INTERFACE => self.parse_interface_box_declaration(),
TokenType::GLOBAL => self.parse_global_var(),
TokenType::FUNCTION => self.parse_function_declaration(),
TokenType::STATIC => self.parse_static_declaration(),
_ => {
let line = self.current_token().line;
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "declaration statement".to_string(),
line,
})
}
}
}
/// Grouped: control flow (if/loop/break/continue/return)
fn parse_control_flow_statement(&mut self) -> Result<ASTNode, ParseError> {
match &self.current_token().token_type {
TokenType::IF => self.parse_if(),
TokenType::LOOP => self.parse_loop(),
TokenType::BREAK => self.parse_break(),
TokenType::CONTINUE => self.parse_continue(),
TokenType::RETURN => self.parse_return(),
_ => {
let line = self.current_token().line;
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "control-flow statement".to_string(),
line,
})
}
}
}
/// Grouped: IO/module-ish (print/nowait/include)
fn parse_io_module_statement(&mut self) -> Result<ASTNode, ParseError> {
match &self.current_token().token_type {
TokenType::PRINT => self.parse_print(),
TokenType::NOWAIT => self.parse_nowait(),
TokenType::INCLUDE => self.parse_include(),
_ => {
let line = self.current_token().line;
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "io/module statement".to_string(),
line,
})
}
}
}
/// Grouped: variable-related (local/outbox)
fn parse_variable_declaration_statement(&mut self) -> Result<ASTNode, ParseError> {
match &self.current_token().token_type {
TokenType::LOCAL => self.parse_local(),
TokenType::OUTBOX => self.parse_outbox(),
_ => {
let line = self.current_token().line;
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "variable declaration".to_string(),
line,
})
}
}
}
/// Grouped: exception (try/throw) with gate checks preserved
fn parse_exception_statement(&mut self) -> Result<ASTNode, ParseError> {
match &self.current_token().token_type {
TokenType::TRY => {
if crate::config::env::parser_stage3() {
self.parse_try_catch()
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_PARSER_STAGE3=1 to use 'try'".to_string(),
line: self.current_token().line,
})
}
}
TokenType::THROW => {
if crate::config::env::parser_stage3() {
self.parse_throw()
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_PARSER_STAGE3=1 to use 'throw'".to_string(),
line: self.current_token().line,
})
}
}
_ => {
let line = self.current_token().line;
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "try/throw".to_string(),
line,
})
}
}
}
/// Error helpers for standalone postfix keywords (catch/cleanup)
fn parse_postfix_catch_cleanup_error(&mut self) -> Result<ASTNode, ParseError> {
match &self.current_token().token_type {
TokenType::CATCH => {
if crate::config::env::block_postfix_catch() {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "postfix 'catch' is only allowed immediately after a standalone block: { ... } catch (...) { ... } (wrap if/else/loop in a standalone block)".to_string(),
line: self.current_token().line,
})
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_BLOCK_CATCH=1 (or NYASH_PARSER_STAGE3=1) to use postfix 'catch' after a standalone block".to_string(),
line: self.current_token().line,
})
}
}
TokenType::CLEANUP => {
if crate::config::env::block_postfix_catch() {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "postfix 'cleanup' is only allowed immediately after a standalone block: { ... } cleanup { ... }".to_string(),
line: self.current_token().line,
})
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_BLOCK_CATCH=1 (or NYASH_PARSER_STAGE3=1) to use postfix 'cleanup' after a standalone block".to_string(),
line: self.current_token().line,
})
}
}
_ => unreachable!(),
}
}
/// Helper: parse catch parameter inside parentheses (after '(' consumed)
/// Forms: (Type ident) | (ident) | ()
pub(super) fn parse_catch_param(&mut self) -> Result<(Option<String>, Option<String>), ParseError> {
@ -66,149 +283,22 @@ impl NyashParser {
// For grammar diff: capture starting token to classify statement keyword
let start_tok = self.current_token().token_type.clone();
let result = match &start_tok {
TokenType::LBRACE => {
// Standalone block (Phase 15.5): may be followed by block‑postfix catch/finally
// Only enabled under gate; otherwise treat as error via expression fallback
// Parse the block body first
let try_body = self.parse_block_statements()?;
// Allow whitespace/newlines between block and postfix keywords
self.skip_newlines();
if crate::config::env::block_postfix_catch()
&& (self.match_token(&TokenType::CATCH) || self.match_token(&TokenType::CLEANUP))
{
// Parse at most one catch, then optional cleanup
let mut catch_clauses: Vec<CatchClause> = Vec::new();
if self.match_token(&TokenType::CATCH) {
self.advance(); // consume 'catch'
self.consume(TokenType::LPAREN)?;
let (exception_type, exception_var) = self.parse_catch_param()?;
self.consume(TokenType::RPAREN)?;
let catch_body = self.parse_block_statements()?;
catch_clauses.push(CatchClause {
exception_type,
variable_name: exception_var,
body: catch_body,
span: Span::unknown(),
});
// Single‑catch policy (MVP): disallow multiple catch in postfix form
self.skip_newlines();
if self.match_token(&TokenType::CATCH) {
let line = self.current_token().line;
return Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "single catch only after standalone block".to_string(),
line,
});
}
}
// Optional cleanup
let finally_body = if self.match_token(&TokenType::CLEANUP) {
self.advance(); // consume 'cleanup'
Some(self.parse_block_statements()?)
} else {
None
};
Ok(ASTNode::TryCatch {
try_body,
catch_clauses,
finally_body,
span: Span::unknown(),
})
} else {
// No postfix keywords. If gate is on, enforce MVP static check:
// direct top-level `throw` inside the standalone block must be followed by catch
if crate::config::env::block_postfix_catch()
&& try_body.iter().any(|n| matches!(n, ASTNode::Throw { .. }))
{
let line = self.current_token().line;
return Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "block with direct 'throw' must be followed by 'catch'".to_string(),
line,
});
}
Ok(ASTNode::Program {
statements: try_body,
span: Span::unknown(),
})
}
}
TokenType::BOX => self.parse_box_declaration(),
TokenType::IMPORT => self.parse_import(),
TokenType::INTERFACE => self.parse_interface_box_declaration(),
TokenType::GLOBAL => self.parse_global_var(),
TokenType::FUNCTION => self.parse_function_declaration(),
TokenType::STATIC => {
self.parse_static_declaration() // 🔥 静的宣言 (function/box)
}
TokenType::IF => self.parse_if(),
TokenType::LOOP => self.parse_loop(),
TokenType::BREAK => self.parse_break(),
TokenType::CONTINUE => self.parse_continue(),
TokenType::RETURN => self.parse_return(),
TokenType::PRINT => self.parse_print(),
TokenType::NOWAIT => self.parse_nowait(),
TokenType::INCLUDE => self.parse_include(),
TokenType::LOCAL => self.parse_local(),
TokenType::OUTBOX => self.parse_outbox(),
TokenType::TRY => {
if crate::config::env::parser_stage3() {
self.parse_try_catch()
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_PARSER_STAGE3=1 to use 'try'".to_string(),
line: self.current_token().line,
})
}
}
TokenType::THROW => {
if crate::config::env::parser_stage3() {
self.parse_throw()
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_PARSER_STAGE3=1 to use 'throw'".to_string(),
line: self.current_token().line,
})
}
}
TokenType::CATCH => {
// Provide a friendlier error when someone writes: if { .. } catch { .. }
if crate::config::env::block_postfix_catch() {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "postfix 'catch' is only allowed immediately after a standalone block: { ... } catch (...) { ... } (wrap if/else/loop in a standalone block)".to_string(),
line: self.current_token().line,
})
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_BLOCK_CATCH=1 (or NYASH_PARSER_STAGE3=1) to use postfix 'catch' after a standalone block".to_string(),
line: self.current_token().line,
})
}
}
TokenType::CLEANUP => {
if crate::config::env::block_postfix_catch() {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "postfix 'cleanup' is only allowed immediately after a standalone block: { ... } cleanup { ... }".to_string(),
line: self.current_token().line,
})
} else {
Err(ParseError::UnexpectedToken {
found: self.current_token().token_type.clone(),
expected: "enable NYASH_BLOCK_CATCH=1 (or NYASH_PARSER_STAGE3=1) to use postfix 'cleanup' after a standalone block".to_string(),
line: self.current_token().line,
})
}
}
TokenType::LBRACE => self.parse_standalone_block_statement(),
TokenType::BOX
| TokenType::IMPORT
| TokenType::INTERFACE
| TokenType::GLOBAL
| TokenType::FUNCTION
| TokenType::STATIC => self.parse_declaration_statement(),
TokenType::IF
| TokenType::LOOP
| TokenType::BREAK
| TokenType::CONTINUE
| TokenType::RETURN => self.parse_control_flow_statement(),
TokenType::PRINT | TokenType::NOWAIT | TokenType::INCLUDE => self.parse_io_module_statement(),
TokenType::LOCAL | TokenType::OUTBOX => self.parse_variable_declaration_statement(),
TokenType::TRY | TokenType::THROW => self.parse_exception_statement(),
TokenType::CATCH | TokenType::CLEANUP => self.parse_postfix_catch_cleanup_error(),
TokenType::USING => self.parse_using(),
TokenType::FROM => {
// 🔥 from構文: from Parent.method(args) または from Parent.constructor(args)