1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132

// Copyright (C) 2019-2021 Aleo Systems Inc.
// This file is part of the Leo library.

// The Leo library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// The Leo library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.

use crate::{AsgConvertError, Expression, FromAst, Node, PartialType, Scope, Span, Statement, Type};
use leo_ast::{ConsoleFunction as AstConsoleFunction, FormatStringPart};

use std::cell::Cell;

// TODO (protryon): Refactor to not require/depend on span
#[derive(Clone)]
pub struct FormatString<'a> {
    pub parts: Vec<FormatStringPart>,
    pub parameters: Vec<Cell<&'a Expression<'a>>>,
    pub span: Span,
}

#[derive(Clone)]
pub enum ConsoleFunction<'a> {
    Assert(Cell<&'a Expression<'a>>),
    Debug(FormatString<'a>),
    Error(FormatString<'a>),
    Log(FormatString<'a>),
}

#[derive(Clone)]
pub struct ConsoleStatement<'a> {
    pub parent: Cell<Option<&'a Statement<'a>>>,
    pub span: Option<Span>,
    pub function: ConsoleFunction<'a>,
}

impl<'a> Node for ConsoleStatement<'a> {
    fn span(&self) -> Option<&Span> {
        self.span.as_ref()
    }
}

impl<'a> FromAst<'a, leo_ast::FormatString> for FormatString<'a> {
    fn from_ast(
        scope: &'a Scope<'a>,
        value: &leo_ast::FormatString,
        _expected_type: Option<PartialType<'a>>,
    ) -> Result<Self, AsgConvertError> {
        let expected_param_len = value
            .parts
            .iter()
            .filter(|x| matches!(x, FormatStringPart::Container))
            .count();
        if value.parameters.len() != expected_param_len {
            // + 1 for formatting string as to not confuse user
            return Err(AsgConvertError::unexpected_call_argument_count(
                expected_param_len + 1,
                value.parameters.len() + 1,
                &value.span,
            ));
        }
        let mut parameters = vec![];
        for parameter in value.parameters.iter() {
            parameters.push(Cell::new(<&Expression<'a>>::from_ast(scope, parameter, None)?));
        }
        Ok(FormatString {
            parts: value.parts.clone(),
            parameters,
            span: value.span.clone(),
        })
    }
}

impl<'a> Into<leo_ast::FormatString> for &FormatString<'a> {
    fn into(self) -> leo_ast::FormatString {
        leo_ast::FormatString {
            parts: self.parts.clone(),
            parameters: self.parameters.iter().map(|e| e.get().into()).collect(),
            span: self.span.clone(),
        }
    }
}

impl<'a> FromAst<'a, leo_ast::ConsoleStatement> for ConsoleStatement<'a> {
    fn from_ast(
        scope: &'a Scope<'a>,
        statement: &leo_ast::ConsoleStatement,
        _expected_type: Option<PartialType<'a>>,
    ) -> Result<Self, AsgConvertError> {
        Ok(ConsoleStatement {
            parent: Cell::new(None),
            span: Some(statement.span.clone()),
            function: match &statement.function {
                AstConsoleFunction::Assert(expression) => ConsoleFunction::Assert(Cell::new(
                    <&Expression<'a>>::from_ast(scope, expression, Some(Type::Boolean.into()))?,
                )),
                AstConsoleFunction::Debug(formatted_string) => {
                    ConsoleFunction::Debug(FormatString::from_ast(scope, formatted_string, None)?)
                }
                AstConsoleFunction::Error(formatted_string) => {
                    ConsoleFunction::Error(FormatString::from_ast(scope, formatted_string, None)?)
                }
                AstConsoleFunction::Log(formatted_string) => {
                    ConsoleFunction::Log(FormatString::from_ast(scope, formatted_string, None)?)
                }
            },
        })
    }
}

impl<'a> Into<leo_ast::ConsoleStatement> for &ConsoleStatement<'a> {
    fn into(self) -> leo_ast::ConsoleStatement {
        use ConsoleFunction::*;
        leo_ast::ConsoleStatement {
            function: match &self.function {
                Assert(e) => AstConsoleFunction::Assert(e.get().into()),
                Debug(formatted_string) => AstConsoleFunction::Debug(formatted_string.into()),
                Error(formatted_string) => AstConsoleFunction::Error(formatted_string.into()),
                Log(formatted_string) => AstConsoleFunction::Log(formatted_string.into()),
            },
            span: self.span.clone().unwrap_or_default(),
        }
    }
}