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Diffstat (limited to 'src/cgil/rlhc-d.lm')
-rw-r--r-- | src/cgil/rlhc-d.lm | 511 |
1 files changed, 511 insertions, 0 deletions
diff --git a/src/cgil/rlhc-d.lm b/src/cgil/rlhc-d.lm new file mode 100644 index 00000000..2a047e68 --- /dev/null +++ b/src/cgil/rlhc-d.lm @@ -0,0 +1,511 @@ +include 'ril.lm' + +namespace d_out + token _IN_ /''/ + token _EX_ /''/ + + lex + token comment / + '//' any* :> '\n' | + '/*' any* :>> '*/' + / + + token id + /[a-zA-Z_][a-zA-Z_0-9]*/ + + token number / + [0-9]+ + / + + token symbol / + '!' | '#' | '$' | '%' | '&' | '(' | ')' | '*' | + '+' | ',' | '-' | '.' | '/' | ':' | ';' | '<' | + '=' | '>' | '?' | '@' | '[' | ']' | '^' | '|' | + '~' / + + literal `{ `} + + token string / + '"' ( [^"\\] | '\\' any ) * '"' | + "'" ( [^'\\] | '\\' any ) * "'" + / + + ignore + /[ \t\v\r\n]+/ + end + + def item + [comment] + | [id] + | [number] + | [symbol] + | [string] + | [`{ _IN_ item* _EX_ `} ] + + def d_out + [_IN_ _EX_ item*] +end + +namespace d_gen + + global Parser: parser<d_out::d_out> + + global HasDefault: list<int> = new list<int>() + + void pushHasDef( H: int ) + { + HasDefault->push( H ) + } + + int popHasDef() + { + return HasDefault->pop() + } + + void tok_list( TL: host::tok* ) + { + for Tok: host::tok in repeat(TL) { + switch Tok + case [host::`${ StmtList: stmt* host::`}$] + send Parser "{[stmt_list( StmtList )]}" + case [host::`={ Expr: expr host::`}=] + send Parser "([expr( Expr )])" + case [E: escape] { + Str: str = $E + send Parser + "[Str.suffix( 1 )]" + } + default { + send Parser [Tok] + } + } + } + + void embedded_host( EmbeddedHost: embedded_host ) + { + switch EmbeddedHost + case [`host `( string `, uint `) `={ TL: host::tok* host::`}=] + { + send Parser + "([tok_list( TL )])" + } + case [`host `( string `, uint `) `${ TL: host::tok* host::`}$] + { + send Parser + "{[tok_list( TL )]} + } + case [`host `( string `, uint `) `@{ TL: host::tok* host::`}@] + { + send Parser + [tok_list( TL )] + } + } + + void expr_factor( ExprFactor: expr_factor ) + { + switch ExprFactor + case [EH: embedded_host] + { + send Parser + [embedded_host(EH)] + } + case + [O:`( TL: expr C: `)] + { + send Parser + [O expr( TL ) C] + } + case + [ident O: `[ TL: expr C: `]] + { + send Parser + [ExprFactor.ident O expr(TL) C] + } + case + [`offset `( ident `, expr `)] + { + send Parser + "& [ExprFactor.ident] \[ [expr(ExprFactor.expr)] \] + } + case + [`deref `( ident `, expr `)] + { + send Parser + "(*( [expr(ExprFactor.expr)] )) + } + case + [T: `TRUE] + { + T.data = '1' + send Parser [T] + } + case + [F: `FALSE] + { + F.data = '0' + send Parser [F] + } + case + [N: `nil] + { + N.data = 'null' + send Parser [N] + } + case + [Number: number] + { + number( Number ) + } + case [E1: embedded_host `-> E2: expr_factor] + { + embedded_host( E1 ) + expr_factor( E2 ) + } + case [`cast Open: `( Type: type Close: `) expr_factor] + { + send Parser ['cast' Open] + type( Type ) + send Parser [Close] + expr_factor( ExprFactor._expr_factor ) + } + default { + # Catches cases not specified + send Parser [ExprFactor] + } + } + + void lvalue( ExprFactor: lvalue ) + { + switch ExprFactor + case [EH: embedded_host] + { + send Parser + [embedded_host(EH)] + } + case + [ident O: `[ TL: expr C: `]] + { + send Parser + [ExprFactor.ident O expr(TL) C] + } + case [E1: embedded_host `-> E2: lvalue] + { + embedded_host( E1 ) + lvalue( E2 ) + } + default { + # Catches cases not specified + send Parser [ExprFactor] + } + } + + void expr_factor_op( ExprFactorOp: expr_factor_op ) + { + switch ExprFactorOp + case [B: `! expr_factor_op] + { + send Parser [B] + expr_factor_op( ExprFactorOp._expr_factor_op ) + } + case [T: `~ expr_factor_op] + { + send Parser [T] + expr_factor_op( ExprFactorOp._expr_factor_op ) + } + case [expr_factor] + { + expr_factor( ExprFactorOp.expr_factor ) + } + } + + void expr_bitwise( ExprBitwise: expr_bitwise ) + { + switch ExprBitwise + case [expr_bitwise A: `& expr_factor_op] + { + expr_bitwise( ExprBitwise._expr_bitwise ) + send Parser [A] + expr_factor_op( ExprBitwise.expr_factor_op ) + } + case [expr_factor_op] + { + expr_factor_op( ExprBitwise.expr_factor_op ) + } + } + + void expr_mult( ExprMult: expr_mult ) + { + switch ExprMult + case [expr_mult T: `* expr_bitwise] + { + expr_mult( ExprMult._expr_mult ) + send Parser [T] + expr_bitwise( ExprMult.expr_bitwise ) + } + case [expr_bitwise] + { + expr_bitwise( ExprMult.expr_bitwise ) + } + } + + void expr_add( ExprAdd: expr_add ) + { + switch ExprAdd + case [expr_add Op: add_op expr_mult] + { + expr_add( ExprAdd._expr_add ) + send Parser [Op] + expr_mult( ExprAdd.expr_mult ) + } + case [expr_mult] + { + expr_mult( ExprAdd.expr_mult ) + } + } + + void expr_shift( ExprShift: expr_shift ) + { + switch ExprShift + case [expr_shift Op: shift_op expr_add] + { + expr_shift( ExprShift._expr_shift ) + send Parser [Op] + expr_add( ExprShift.expr_add ) + } + case [expr_add] + { + expr_add( ExprShift.expr_add ) + } + } + + void expr_test( ExprTest: expr_test ) + { + switch ExprTest + case [expr_test Op: test_op expr_shift] + { + expr_test( ExprTest._expr_test ) + send Parser [Op] + expr_shift( ExprTest.expr_shift ) + } + case [expr_shift] + { + expr_shift( ExprTest.expr_shift ) + } + } + + void expr( Expr: expr ) + { + expr_test( Expr.expr_test ) + } + + void type( Type: type ) + { + switch Type + case "s8" + send Parser ['byte '] + case "s16" + send Parser ['short '] + case "s32" + send Parser ['int '] + case "s64" + send Parser ['long '] + case "s128" + send Parser ['long long '] + default + send Parser [Type] + } + + void number( Number: number ) + { + switch Number + case [`u `( uint `) ] + send Parser "[Number.uint]u" + default + send Parser [Number] + } + + void num_list( NumList: num_list ) + { + for Number: number in NumList + send Parser "[number( Number )], " + } + + void stmt( Stmt: stmt ) + { + switch Stmt + case [EH: embedded_host] + { + send Parser + [embedded_host(EH)] + } + case [A: static_array] { + send Parser + "static const [type(A.type)]\[\] " + "[A.ident] = \[ [num_list( A.num_list )] \]; + } + case [V: static_value] { + send Parser + "static const [V.type] [V.ident] = [V.number]; + } + case [ + `if `( IfExpr: expr `) IfStmt: stmt + ElseIfClauseList: else_if_clause* ElseClauseOpt: else_clause? + ] { + send Parser + "if ( [expr(IfExpr)] ) + " [stmt(IfStmt)] + + for ElseIfClause: else_if_clause in repeat( ElseIfClauseList ) { + match ElseIfClause + [`else `if `( ElseIfExpr: expr `) ElseIfStmt: stmt] + + send Parser + "else if ( [expr(ElseIfExpr)] ) + " [stmt(ElseIfStmt)] + } + + if ( match ElseClauseOpt ['else' ElseStmt: stmt] ) { + send Parser + "else + " [stmt(ElseStmt)] + } + } + case [`while `( WhileExpr: expr `) WhileStmt: stmt] { + send Parser + "while ( [expr(WhileExpr)] ) + " [stmt(WhileStmt)] + } + case [`switch `( SwitchExpr: expr `) `{ StmtList: stmt* `}] { + pushHasDef( 0 ) + + send Parser + "switch ( [expr(SwitchExpr)] ) { + " [stmt_list(StmtList)] + + if ( popHasDef() == 0 ) { + send Parser + " default: break; + } + + send Parser + "} + } + case [ExprExpr: expr Semi: `;] { + send Parser + [expr( ExprExpr ) Semi] + } + case [L: `{ TL: stmt* R: `}] { + send Parser + [L stmt_list( TL ) R] + } + case [ + OptConst: opt_const Type: type + Ident: ident OptInit: opt_init Semi: `; + ] + { + if match OptConst ['const'] { + send Parser + "const( [type( Type )] ) + } + else { + type( Type ) + } + + send Parser [Ident] + + if match OptInit [E: `= expr] { + send Parser + [E expr(OptInit.expr)] + } + + send Parser [Semi] + } + case [case_block] + { + send Parser + "case [expr( Stmt.case_block.expr )]: + "[stmt_list( Stmt.case_block._repeat_stmt )] + "break; + } + case [default_block] + { + send Parser + "default: + "[stmt_list( Stmt.default_block._repeat_stmt )] + "break; + + popHasDef() + pushHasDef( 1 ) + } + case [case_label] + { + send Parser + "case [expr( Stmt.case_label.expr )]: + } + case [export_stmt] + { + send Parser + "static const [type(Stmt.export_stmt.type)] " + "[Stmt.export_stmt.ident] = [number(Stmt.export_stmt.number)]; + } + case ['fallthrough' ';'] + { + send Parser "goto case;" + } + case [Index: index_stmt] + { + send Parser + "const([type(Index.type)]) *[Index.ident]" + + if match Index.opt_init [E: `= expr] { + send Parser + [E expr(Index.opt_init.expr)] + } + + send Parser "; + } + case [AS: assign_stmt] + { + send Parser + "[lvalue(AS.LValue) AS.assign_op expr(AS.expr)]; + } + default { + # catches unspecified cases + send Parser [Stmt] + } + } + + void stmt_list( StmtList: stmt* ) + { + for Stmt: stmt in repeat( StmtList ) + stmt( Stmt ) + } + + void trans( Output: stream, Start: start ) + { + Parser = new parser<d_out::d_out>() + + if ( Start.opt_bom.bom ) + send Output [Start.opt_bom.bom] + + stmt_list( Start._repeat_stmt ) + + DO: d_out::d_out = Parser->finish() + + if DO { + send Output + [DO] + } + else { + send stderr + "failed to parse output: [Parser->error] + } + } +end + +void trans( Output: stream, Start: start ) +{ + d_gen::trans( Output, Start ) +} + +include 'rlhc-main.lm' |