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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,130 +1,131 @@ | ||
| use super::{ | ||
| expression::{tuple, tuple_init}, | ||
| *, | ||
| }; | ||
|
|
||
| // "signal" --> None | ||
| // "signal input" --> Some(true) | ||
| // "signal output" --> Some(false) | ||
| fn signal_header(p: &mut Parser) -> Option<bool> { | ||
| let mut res = None; | ||
| let m = p.open(); | ||
| p.expect(SignalKw); | ||
| if p.at_any(&[InputKw, OutputKw]) { | ||
| if p.at(InputKw) { | ||
| res = Some(true); | ||
| } else { | ||
| res = Some(false); | ||
| } | ||
| p.advance(); | ||
|
|
||
| if p.at(LCurly) { | ||
| p.expect(Identifier); | ||
| p.expect(RCurly); | ||
| } | ||
| } | ||
| p.close(m, SignalHeader); | ||
| res | ||
| } | ||
|
|
||
| /** | ||
| * Declaration := "var" (SimpleSymbol, ..., SimpleSymbol) TupleInitialization | | ||
| * | ||
| * | ||
| */ | ||
| pub(super) fn var_declaration(p: &mut Parser) { | ||
| let m = p.open(); | ||
| p.expect(VarKw); | ||
|
|
||
| if p.at(LParen) { | ||
| tuple(p); | ||
| if p.at(Assign) { | ||
| tuple_init(p); | ||
| } | ||
| } else { | ||
| p.expect(Identifier); | ||
| if p.at(Assign) { | ||
| p.expect(Assign); | ||
| expression::expression(p); | ||
| } | ||
| // list of var | ||
| while p.at(Comma) && !p.eof() { | ||
| p.expect(Comma); | ||
| p.expect(Identifier); | ||
| if p.at(Assign) { | ||
| p.expect(Assign); | ||
| expression::expression(p); | ||
| } | ||
| } | ||
| } | ||
| p.close(m, VarDecl); | ||
| } | ||
|
|
||
| pub(super) fn signal_declaration(p: &mut Parser) { | ||
| if !p.at(SignalKw) { | ||
| p.advance_with_error("Signal error"); | ||
| return; | ||
| } | ||
|
|
||
| let m = p.open(); | ||
| let io_signal = signal_header(p); | ||
|
|
||
| if p.at(LParen) { | ||
| tuple(p); | ||
| if p.at_any(&[Assign, RAssignSignal, RAssignConstraintSignal]) { | ||
| tuple_init(p); | ||
| } | ||
| } else { | ||
| p.expect(Identifier); | ||
| // list of var | ||
| while p.at(Comma) && !p.eof() { | ||
| p.skip(); | ||
| p.expect(Identifier); | ||
| } | ||
| } | ||
|
|
||
| if let Some(is_input) = io_signal { | ||
| if is_input { | ||
| p.close(m, InputSignalDecl); | ||
| } else { | ||
| p.close(m, OutputSignalDecl); | ||
| } | ||
| } else { | ||
| p.close(m, SignalDecl); | ||
| } | ||
| } | ||
|
|
||
| pub(super) fn component_declaration(p: &mut Parser) { | ||
| let m = p.open(); | ||
| p.expect(ComponentKw); | ||
| let m_c = p.open(); | ||
| p.expect(Identifier); | ||
| p.close(m_c, ComponentIdentifier); | ||
|
|
||
| p.expect(Assign); | ||
| let m_c = p.open(); | ||
| p.expect(Identifier); | ||
| p.close(m_c, TemplateName); | ||
| p.expect(LParen); | ||
|
|
||
| if p.at(Identifier) { | ||
| expression::expression(p); | ||
| while !p.at(RParen) && !p.eof() { | ||
| p.expect(Comma); | ||
| expression::expression(p); | ||
| } | ||
| } | ||
|
|
||
| p.expect(RParen); | ||
|
|
||
| p.close(m, ComponentDecl); | ||
| } | ||
|
|
||
| pub(super) fn declaration(p: &mut Parser) { | ||
| match p.current() { | ||
| SignalKw => signal_declaration(p), | ||
| VarKw => var_declaration(p), | ||
| ComponentKw => component_declaration(p), | ||
| _ => unreachable!(), | ||
| } | ||
| } | ||
| use super::{ | ||
| expression::{tuple, tuple_init}, | ||
| *, | ||
| }; | ||
|
|
||
| // "signal" --> None | ||
| // "signal input" --> Some(true) | ||
| // "signal output" --> Some(false) | ||
| fn signal_header(p: &mut Parser) -> Option<bool> { | ||
| let mut res = None; | ||
| let m = p.open(); | ||
| p.expect(SignalKw); | ||
| if p.at_any(&[InputKw, OutputKw]) { | ||
| if p.at(InputKw) { | ||
| res = Some(true); | ||
| } else { | ||
| res = Some(false); | ||
| } | ||
| p.advance(); | ||
|
|
||
| if p.at(LCurly) { | ||
| p.expect(Identifier); | ||
| p.expect(RCurly); | ||
| } | ||
| } | ||
| p.close(m, SignalHeader); | ||
| res | ||
| } | ||
|
|
||
| /** | ||
| * Declaration := "var" (SimpleSymbol, ..., SimpleSymbol) TupleInitialization | | ||
| * | ||
| * | ||
| */ | ||
| pub(super) fn var_declaration(p: &mut Parser) { | ||
| let m = p.open(); | ||
| p.expect(VarKw); | ||
|
|
||
| if p.at(LParen) { | ||
| tuple(p); | ||
| if p.at(Assign) { | ||
| tuple_init(p); | ||
| } | ||
| } else { | ||
| p.expect(Identifier); | ||
| if p.at(Assign) { | ||
| p.expect(Assign); | ||
| expression::expression(p); | ||
| } | ||
| // list of var | ||
| while p.at(Comma) && !p.eof() { | ||
| p.expect(Comma); | ||
| p.expect(Identifier); | ||
| if p.at(Assign) { | ||
| p.expect(Assign); | ||
| expression::expression(p); | ||
| } | ||
| } | ||
| } | ||
| p.close(m, VarDecl); | ||
| } | ||
|
|
||
| pub(super) fn signal_declaration(p: &mut Parser) { | ||
| if !p.at(SignalKw) { | ||
| p.advance_with_error("Signal error"); | ||
| return; | ||
| } | ||
|
|
||
| let m = p.open(); | ||
| let io_signal = signal_header(p); | ||
|
|
||
| if p.at(LParen) { | ||
| tuple(p); | ||
| if p.at_any(&[Assign, RAssignSignal, RAssignConstraintSignal]) { | ||
| tuple_init(p); | ||
| } | ||
| } else { | ||
| p.expect(Identifier); | ||
| // list of var | ||
| while p.at(Comma) && !p.eof() { | ||
| p.skip(); | ||
| p.expect(Identifier); | ||
| } | ||
| } | ||
|
|
||
| if let Some(is_input) = io_signal { | ||
| if is_input { | ||
| p.close(m, InputSignalDecl); | ||
| } else { | ||
| p.close(m, OutputSignalDecl); | ||
| } | ||
| } else { | ||
| p.close(m, SignalDecl); | ||
| } | ||
| } | ||
|
|
||
| pub(super) fn component_declaration(p: &mut Parser) { | ||
| let m = p.open(); | ||
| p.expect(ComponentKw); | ||
| let m_c = p.open(); | ||
| p.expect(Identifier); | ||
| p.close(m_c, ComponentIdentifier); | ||
|
|
||
| p.expect(Assign); | ||
| let m_c = p.open(); | ||
| p.expect(Identifier); | ||
| p.close(m_c, TemplateName); | ||
| p.expect(LParen); | ||
|
|
||
| if p.at(Identifier) { | ||
| expression::expression(p); | ||
| while !p.at(RParen) && !p.eof() { | ||
| p.expect(Comma); | ||
| expression::expression(p); | ||
| } | ||
| } | ||
|
|
||
| p.expect(RParen); | ||
|
|
||
| p.close(m, ComponentDecl); | ||
| } | ||
|
|
||
| pub(super) fn declaration(p: &mut Parser) { | ||
| match p.current() { | ||
| SignalKw => signal_declaration(p), | ||
| VarKw => var_declaration(p), | ||
| ComponentKw => component_declaration(p), | ||
| _ => unreachable!(), | ||
| } | ||
| } | ||
|
|
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