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parameterize Parser on an Error type

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This commit is contained in:
Folkert 2021-02-07 22:08:28 +01:00
parent da28486184
commit 148fffe969
17 changed files with 372 additions and 271 deletions
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16
compiler/parse/src/test_helpers.rs
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@ -2,17 +2,23 @@ use crate::ast::{self, Attempting};
use crate::blankspace::space0_before;
use crate::expr::expr;
use crate::module::{header, module_defs};
use crate::parser::{loc, Bag, Parser, State};
use crate::parser::{loc, Bag, Parser, State, SyntaxError};
use bumpalo::collections::Vec;
use bumpalo::Bump;
use roc_region::all::Located;
#[allow(dead_code)]
pub fn parse_expr_with<'a>(arena: &'a Bump, input: &'a str) -> Result<ast::Expr<'a>, Bag<'a>> {
pub fn parse_expr_with<'a>(
arena: &'a Bump,
input: &'a str,
) -> Result<ast::Expr<'a>, Bag<'a, SyntaxError>> {
parse_loc_with(arena, input).map(|loc_expr| loc_expr.value)
}
pub fn parse_header_with<'a>(arena: &'a Bump, input: &'a str) -> Result<ast::Module<'a>, Bag<'a>> {
pub fn parse_header_with<'a>(
arena: &'a Bump,
input: &'a str,
) -> Result<ast::Module<'a>, Bag<'a, SyntaxError>> {
let state = State::new_in(arena, input.trim().as_bytes(), Attempting::Module);
let answer = header().parse(arena, state);
@ -25,7 +31,7 @@ pub fn parse_header_with<'a>(arena: &'a Bump, input: &'a str) -> Result<ast::Mod
pub fn parse_defs_with<'a>(
arena: &'a Bump,
input: &'a str,
) -> Result<Vec<'a, Located<ast::Def<'a>>>, Bag<'a>> {
) -> Result<Vec<'a, Located<ast::Def<'a>>>, Bag<'a, SyntaxError>> {
let state = State::new_in(arena, input.trim().as_bytes(), Attempting::Module);
let answer = module_defs().parse(arena, state);
answer
@ -37,7 +43,7 @@ pub fn parse_defs_with<'a>(
pub fn parse_loc_with<'a>(
arena: &'a Bump,
input: &'a str,
) -> Result<Located<ast::Expr<'a>>, Bag<'a>> {
) -> Result<Located<ast::Expr<'a>>, Bag<'a, SyntaxError>> {
let state = State::new_in(arena, input.trim().as_bytes(), Attempting::Module);
let parser = space0_before(loc(expr(0)), 0);
let answer = parser.parse(&arena, state);