Run rustfmt on schala.rs

This commit is contained in:
Greg Shuflin 2021-10-19 20:50:43 -07:00
parent 052a2feb23
commit 49a50deb04
1 changed files with 157 additions and 139 deletions

View File

@ -1,10 +1,11 @@
use stopwatch::Stopwatch;
use schala_repl::{ProgrammingLanguageInterface,
ComputationRequest, ComputationResponse,
LangMetaRequest, LangMetaResponse, GlobalOutputStats};
use crate::{reduced_ast, tokenizing, parsing, eval, typechecking, symbol_table};
use crate::error::SchalaError;
use crate::{eval, parsing, reduced_ast, symbol_table, tokenizing, typechecking};
use schala_repl::{
ComputationRequest, ComputationResponse, GlobalOutputStats, LangMetaRequest, LangMetaResponse,
ProgrammingLanguageInterface,
};
/// All the state necessary to parse and execute a Schala program are stored in this struct.
pub struct Schala {
@ -39,7 +40,7 @@ impl Schala {
symbol_table: symbol_table::SymbolTable::new(),
state: eval::State::new(),
type_context: typechecking::TypeContext::new(),
active_parser: parsing::Parser::new()
active_parser: parsing::Parser::new(),
}
}
@ -65,21 +66,26 @@ impl Schala {
// TODO tokenize should return its own error type
let tokens = tokenizing::tokenize(source);
if let Some(err) = SchalaError::from_tokens(&tokens) {
return Err(err)
return Err(err);
}
//2nd stage - parsing
self.active_parser.add_new_tokens(tokens);
let ast = self.active_parser.parse()
let ast = self
.active_parser
.parse()
.map_err(|err| SchalaError::from_parse_error(err, &self.source_reference))?;
//Perform all symbol table work
self.symbol_table.process_ast(&ast)
self.symbol_table
.process_ast(&ast)
.map_err(SchalaError::from_symbol_table)?;
// Typechecking
// TODO typechecking not working
let _overall_type = self.type_context.typecheck(&ast)
let _overall_type = self
.type_context
.typecheck(&ast)
.map_err(SchalaError::from_type_error);
// Reduce AST - TODO this doesn't produce an error yet, but probably should
@ -87,24 +93,21 @@ impl Schala {
// Tree-walking evaluator. TODO fix this
let evaluation_outputs = self.state.evaluate(reduced_ast, true);
let text_output: Result<Vec<String>, String> = evaluation_outputs
.into_iter()
.collect();
let text_output: Result<Vec<String>, String> = evaluation_outputs.into_iter().collect();
let text_output: Result<Vec<String>, SchalaError> = text_output
.map_err(|err| SchalaError::from_string(err, Stage::Evaluation));
let text_output: Result<Vec<String>, SchalaError> =
text_output.map_err(|err| SchalaError::from_string(err, Stage::Evaluation));
let eval_output: String = text_output
.map(|v| { Iterator::intersperse(v.into_iter(), "\n".to_owned()).collect() })?;
let eval_output: String =
text_output.map(|v| Iterator::intersperse(v.into_iter(), "\n".to_owned()).collect())?;
Ok(eval_output)
}
}
/// Represents lines of source code
pub(crate) struct SourceReference {
lines: Option<Vec<String>>
lines: Option<Vec<String>>,
}
impl SourceReference {
@ -114,10 +117,14 @@ impl SourceReference {
fn load_new_source(&mut self, source: &str) {
//TODO this is a lot of heap allocations - maybe there's a way to make it more efficient?
self.lines = Some(source.lines().map(|s| s.to_string()).collect()); }
self.lines = Some(source.lines().map(|s| s.to_string()).collect());
}
pub fn get_line(&self, line: usize) -> String {
self.lines.as_ref().and_then(|x| x.get(line).map(|s| s.to_string())).unwrap_or_else(|| "NO LINE FOUND".to_string())
self.lines
.as_ref()
.and_then(|x| x.get(line).map(|s| s.to_string()))
.unwrap_or_else(|| "NO LINE FOUND".to_string())
}
}
@ -138,14 +145,12 @@ fn stage_names() -> Vec<&'static str> {
"tokenizing",
"parsing",
"symbol-table",
"scope-resolution",
"typechecking",
"ast-reduction",
"ast-walking-evaluation"
"ast-walking-evaluation",
]
}
impl ProgrammingLanguageInterface for Schala {
type Config = ();
fn language_name() -> String {
@ -156,30 +161,43 @@ impl ProgrammingLanguageInterface for Schala {
"schala".to_owned()
}
fn run_computation(&mut self, request: ComputationRequest<Self::Config>) -> ComputationResponse {
let ComputationRequest { source, debug_requests: _, config: _ } = request;
fn run_computation(
&mut self,
request: ComputationRequest<Self::Config>,
) -> ComputationResponse {
let ComputationRequest {
source,
debug_requests: _,
config: _,
} = request;
self.source_reference.load_new_source(source);
let sw = Stopwatch::start_new();
let main_output = self.run_pipeline(source)
let main_output = self
.run_pipeline(source)
.map_err(|schala_err| schala_err.display());
let global_output_stats = GlobalOutputStats {
total_duration: sw.elapsed(),
stage_durations: vec![]
stage_durations: vec![],
};
ComputationResponse {
main_output,
global_output_stats,
debug_responses: vec![]
debug_responses: vec![],
}
}
fn request_meta(&mut self, request: LangMetaRequest) -> LangMetaResponse {
match request {
LangMetaRequest::StageNames => LangMetaResponse::StageNames(stage_names().iter().map(|s| s.to_string()).collect()),
_ => LangMetaResponse::Custom { kind: "not-implemented".to_string(), value: "".to_string() }
LangMetaRequest::StageNames => {
LangMetaResponse::StageNames(stage_names().iter().map(|s| s.to_string()).collect())
}
_ => LangMetaResponse::Custom {
kind: "not-implemented".to_string(),
value: "".to_string(),
},
}
}
}