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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157

// 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::{
    ArrayDimensions,
    CircuitImpliedVariableDefinition,
    GroupValue,
    Identifier,
    IntegerType,
    PositiveNumber,
    Span,
    SpreadOrExpression,
};

use serde::{Deserialize, Serialize};
use std::fmt;

use crate::Node;

mod binary;
pub use binary::*;
mod unary;
pub use unary::*;
mod ternary;
pub use ternary::*;
mod array_access;
pub use array_access::*;
mod array_range_access;
pub use array_range_access::*;
mod array_inline;
pub use array_inline::*;
mod array_init;
pub use array_init::*;
mod tuple_access;
pub use tuple_access::*;
mod tuple_init;
pub use tuple_init::*;
mod circuit_static_function_access;
pub use circuit_static_function_access::*;
mod circuit_member_access;
pub use circuit_member_access::*;
mod circuit_init;
pub use circuit_init::*;
mod value;
pub use value::*;
mod call;
pub use call::*;
mod cast;
pub use cast::*;

/// Expression that evaluates to a value
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum Expression {
    Identifier(Identifier),
    Value(ValueExpression),
    Binary(BinaryExpression),
    Unary(UnaryExpression),
    Ternary(TernaryExpression),
    Cast(CastExpression),

    ArrayInline(ArrayInlineExpression),
    ArrayInit(ArrayInitExpression),
    ArrayAccess(ArrayAccessExpression),
    ArrayRangeAccess(ArrayRangeAccessExpression),

    TupleInit(TupleInitExpression),
    TupleAccess(TupleAccessExpression),

    CircuitInit(CircuitInitExpression),
    CircuitMemberAccess(CircuitMemberAccessExpression),
    CircuitStaticFunctionAccess(CircuitStaticFunctionAccessExpression),

    Call(CallExpression),
}

impl Node for Expression {
    fn span(&self) -> &Span {
        use Expression::*;
        match &self {
            Identifier(n) => n.span(),
            Value(n) => n.span(),
            Binary(n) => n.span(),
            Unary(n) => n.span(),
            Ternary(n) => n.span(),
            ArrayInline(n) => n.span(),
            ArrayInit(n) => n.span(),
            ArrayAccess(n) => n.span(),
            ArrayRangeAccess(n) => n.span(),
            TupleInit(n) => n.span(),
            TupleAccess(n) => n.span(),
            CircuitInit(n) => n.span(),
            CircuitMemberAccess(n) => n.span(),
            CircuitStaticFunctionAccess(n) => n.span(),
            Call(n) => n.span(),
            Cast(n) => n.span(),
        }
    }

    fn set_span(&mut self, span: Span) {
        use Expression::*;
        match self {
            Identifier(n) => n.set_span(span),
            Value(n) => n.set_span(span),
            Binary(n) => n.set_span(span),
            Unary(n) => n.set_span(span),
            Ternary(n) => n.set_span(span),
            ArrayInline(n) => n.set_span(span),
            ArrayInit(n) => n.set_span(span),
            ArrayAccess(n) => n.set_span(span),
            ArrayRangeAccess(n) => n.set_span(span),
            TupleInit(n) => n.set_span(span),
            TupleAccess(n) => n.set_span(span),
            CircuitInit(n) => n.set_span(span),
            CircuitMemberAccess(n) => n.set_span(span),
            CircuitStaticFunctionAccess(n) => n.set_span(span),
            Call(n) => n.set_span(span),
            Cast(n) => n.set_span(span),
        }
    }
}

impl fmt::Display for Expression {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        use Expression::*;
        match &self {
            Identifier(n) => n.fmt(f),
            Value(n) => n.fmt(f),
            Binary(n) => n.fmt(f),
            Unary(n) => n.fmt(f),
            Ternary(n) => n.fmt(f),
            ArrayInline(n) => n.fmt(f),
            ArrayInit(n) => n.fmt(f),
            ArrayAccess(n) => n.fmt(f),
            ArrayRangeAccess(n) => n.fmt(f),
            TupleInit(n) => n.fmt(f),
            TupleAccess(n) => n.fmt(f),
            CircuitInit(n) => n.fmt(f),
            CircuitMemberAccess(n) => n.fmt(f),
            CircuitStaticFunctionAccess(n) => n.fmt(f),
            Call(n) => n.fmt(f),
            Cast(n) => n.fmt(f),
        }
    }
}