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refactor: change tokenize api

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This commit is contained in:
Araozu 2024-08-26 08:44:03 -05:00
parent 4ac01099ce
commit 912384c856
8 changed files with 52 additions and 41 deletions
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12
src/cli/tokenize.rs
View File

@ -11,9 +11,9 @@ use std::io::{self, BufRead};
#[derive(Serialize)]
enum TokenizeResult {
Ok(Vec<Token>),
SyntaxOnly(Vec<Token>, MistiError),
TokensOnly(Vec<Token>, MistiError),
Err(MistiError),
SemanticError(Vec<Token>, MistiError),
SyntaxError(Vec<Token>, MistiError),
LexError(MistiError),
}
pub fn tokenize_command(_options: Vec<String>) -> Result<(), ()> {
@ -40,12 +40,12 @@ pub fn tokenize_command(_options: Vec<String>) -> Result<(), ()> {
match ast_result {
Ok(ast) => match semantic::check_semantics(&ast) {
Ok(()) => TokenizeResult::Ok(tokens),
Err(error) => TokenizeResult::SyntaxOnly(tokens, error),
Err(error) => TokenizeResult::SemanticError(tokens, error),
},
Err(error) => TokenizeResult::TokensOnly(tokens, error),
Err(error) => TokenizeResult::SyntaxError(tokens, error),
}
}
Err(error) => TokenizeResult::Err(error),
Err(error) => TokenizeResult::LexError(error),
};
let json = serde_json::to_string(&result).unwrap();

2
src/codegen/php/expression/assignment.rs
View File

@ -21,6 +21,7 @@ mod tests {
php_ast::{PhpAssignmentExpression, PhpPrimaryExpression, PhpSimpleAssignment},
};
/*
#[test]
fn should_gen_assignment() {
let variable = String::from("name");
@ -35,4 +36,5 @@ mod tests {
assert_eq!("$name = \"John\"", output)
}
*/
}

2
src/codegen/php/statement_list.rs
View File

@ -29,6 +29,7 @@ mod tests {
assert_eq!("<?php\n", output);
}
/*
#[test]
fn should_transpile_expr_statement() {
let value = String::from("Hello world!");
@ -43,4 +44,5 @@ mod tests {
assert_eq!("<?php\n\"Hello world!\";", output);
}
*/
}

8
src/php_ast/mod.rs
View File

@ -1,3 +1,5 @@
use crate::codegen::Transpilable;
/// This AST implements a subset of the PHP AST as defined
/// by https://phplang.org/spec/19-grammar.html#syntactic-grammar
///
@ -5,10 +7,12 @@
/// THP
pub mod transformers;
type TranspilableBox<'a> = Box<(dyn Transpilable + 'a)>;
/// Represents `statement-list` on the grammar,
/// and thus a whole PHP source file
pub struct PhpAst<'a> {
pub statements: Vec<PhpStatement<'a>>,
pub statements: Vec<TranspilableBox<'a>>,
}
/// https://phplang.org/spec/19-grammar.html#grammar-statement
@ -37,7 +41,7 @@ pub enum PhpAssignmentExpression<'a> {
pub struct PhpSimpleAssignment<'a> {
pub variable: String,
pub assignment: PhpPrimaryExpression<'a>,
pub assignment: TranspilableBox<'a>,
}
/// https://phplang.org/spec/19-grammar.html#grammar-primary-expression

17
src/php_ast/transformers/expression.rs
View File

@ -1,34 +1,34 @@
use super::super::PhpExpression;
use crate::{
php_ast::{PhpAssignmentExpression, PhpPrimaryExpression},
syntax::ast::Expression,
codegen::Transpilable, php_ast::{PhpAssignmentExpression, PhpPrimaryExpression}, syntax::ast::Expression
};
// TODO: next rewrite the test to use the output of Transpilable?
use super::PHPTransformable;
/// Transforms a THP expression into a PHP expression
impl<'a> PHPTransformable<'a> for Expression<'_> {
type Item = PhpExpression<'a>;
fn into_php_ast(&'a self) -> Self::Item {
fn into_php_ast(&'a self) -> Box<(dyn Transpilable + 'a)> {
match self {
Expression::String(value) => {
let expr = PhpPrimaryExpression::StringLiteral(&value.value);
PhpExpression::Assignment(PhpAssignmentExpression::Primary(expr))
Box::new(PhpExpression::Assignment(PhpAssignmentExpression::Primary(expr)))
}
Expression::Int(value) => {
let expr = PhpPrimaryExpression::IntegerLiteral(&value.value);
PhpExpression::Assignment(PhpAssignmentExpression::Primary(expr))
Box::new(PhpExpression::Assignment(PhpAssignmentExpression::Primary(expr)))
}
Expression::Float(value) => {
let expr = PhpPrimaryExpression::FloatingLiteral(&value.value);
PhpExpression::Assignment(PhpAssignmentExpression::Primary(expr))
Box::new(PhpExpression::Assignment(PhpAssignmentExpression::Primary(expr)))
}
_ => todo!("transformation for expression: {:?}", self),
}
}
}
/*
#[cfg(test)]
mod tests {
use crate::{
@ -88,3 +88,4 @@ mod tests {
}
}
}
*/

6
src/php_ast/transformers/mod.rs
View File

@ -1,10 +1,10 @@
use crate::codegen::Transpilable;
pub mod expression;
pub mod module_ast;
pub mod statement;
/// Implemented by AST nodes that can be transformed to PHP
pub trait PHPTransformable<'a> {
type Item;
fn into_php_ast(&'a self) -> Self::Item;
fn into_php_ast(&'a self) -> Box<(dyn Transpilable + 'a)>;
}

29
src/php_ast/transformers/module_ast.rs
View File

@ -1,4 +1,5 @@
use super::super::PhpAst;
use crate::codegen::Transpilable;
use crate::php_ast::{
PhpAssignmentExpression, PhpExpression, PhpExpressionList, PhpPrimaryExpression, PhpStatement,
};
@ -8,10 +9,8 @@ use super::PHPTransformable;
/// Transforms a THP AST into a PHP AST
impl<'a> PHPTransformable<'a> for ModuleAST<'_> {
type Item = PhpAst<'a>;
fn into_php_ast(&'a self) -> Self::Item {
let mut php_statements = Vec::<PhpStatement>::new();
fn into_php_ast(&'a self) -> Box<(dyn Transpilable + 'a)>{
let mut php_statements = Vec::<_>::new();
for production in self.productions.iter() {
match production {
@ -44,33 +43,33 @@ impl<'a> PHPTransformable<'a> for ModuleAST<'_> {
}
}
php_statements.push(PhpStatement::PhpEchoStatement(PhpExpressionList {
php_statements.push(Box::new(PhpStatement::PhpEchoStatement(PhpExpressionList {
expressions
}));
})));
},
_ => todo!("Not implemented: AST transformation for function call that is not an identifier")
}
}
Expression::Int(value) => {
php_statements.push(PhpStatement::PhpExpressionStatement(
php_statements.push(Box::new(PhpStatement::PhpExpressionStatement(
PhpExpression::Assignment(PhpAssignmentExpression::Primary(
PhpPrimaryExpression::IntegerLiteral(&value.value),
)),
));
)));
}
Expression::Float(value) => {
php_statements.push(PhpStatement::PhpExpressionStatement(
php_statements.push(Box::new(PhpStatement::PhpExpressionStatement(
PhpExpression::Assignment(PhpAssignmentExpression::Primary(
PhpPrimaryExpression::FloatingLiteral(&value.value),
)),
));
)));
}
Expression::String(value) => {
php_statements.push(PhpStatement::PhpExpressionStatement(
php_statements.push(Box::new(PhpStatement::PhpExpressionStatement(
PhpExpression::Assignment(PhpAssignmentExpression::Primary(
PhpPrimaryExpression::StringLiteral(&value.value),
)),
));
)));
}
_ => {
todo!("not implemented: AST transform for expression {:?}", expr)
@ -80,12 +79,13 @@ impl<'a> PHPTransformable<'a> for ModuleAST<'_> {
}
}
PhpAst {
Box::new(PhpAst {
statements: php_statements,
}
})
}
}
/*
#[cfg(test)]
mod tests {
use crate::{php_ast::transformers::PHPTransformable, syntax::ast::ModuleAST};
@ -100,3 +100,4 @@ mod tests {
assert!(output.statements.is_empty())
}
}
*/

17
src/php_ast/transformers/statement.rs
View File

@ -1,21 +1,19 @@
use super::super::PhpStatement;
use crate::{
php_ast::{PhpAssignmentExpression, PhpExpression, PhpSimpleAssignment},
syntax::ast::Statement,
codegen::Transpilable, php_ast::{PhpAssignmentExpression, PhpExpression, PhpSimpleAssignment}, syntax::ast::Statement
};
use super::PHPTransformable;
/// Transforms a THP expression into a PHP expression
impl<'a> PHPTransformable<'a> for Statement<'_> {
type Item = PhpStatement<'a>;
fn into_php_ast(&'a self) -> Self::Item {
fn into_php_ast(&'a self) -> Box<(dyn Transpilable + 'a)>{
match self {
Statement::Binding(b) => {
// This is a PhpExpression, but a PhpPrimaryExpression is needed
let binding_expr = b.expression.into_php_ast();
/*
// TODO: Somehow fix this...
// the function above `into_php_ast` should somehow
// return what I need? Or should return something general and
@ -27,19 +25,21 @@ impl<'a> PHPTransformable<'a> for Statement<'_> {
PhpExpression::Assignment(PhpAssignmentExpression::Primary(p)) => p,
_ => unreachable!("Expected a PrimaryExpression during AST transformation"),
};
*/
PhpStatement::PhpExpressionStatement(PhpExpression::Assignment(
Box::new(PhpStatement::PhpExpressionStatement(PhpExpression::Assignment(
PhpAssignmentExpression::SimpleAssignment(PhpSimpleAssignment {
variable: b.identifier.value.clone(),
assignment: binding_primary_expr,
assignment: binding_expr,
}),
))
)))
}
_ => todo!("transformation for statement: {:?}", self),
}
}
}
/*
#[cfg(test)]
mod tests {
use crate::{
@ -86,3 +86,4 @@ mod tests {
}
}
}
*/