Transpile procedures and statements
This commit is contained in:
parent
04a52d5ad7
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GPG Key ID:
A27FDC1E8EE902C0
@ -215,7 +215,8 @@ BEGIN
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INC(TokenStart);
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INC(Index)
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END;
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RETURN (Index = Length(Keyword)) AND (TokenStart = TokenEnd) AND Result
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Result := (Index = Length(Keyword)) AND (TokenStart = TokenEnd) AND Result;
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RETURN Result
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END CompareKeyword;
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(* Reached the end of file. *)
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@ -236,15 +237,20 @@ PROCEDURE TransitionActionFinalize(ALexer: PLexer; AToken: PLexerToken);
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BEGIN
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IF ALexer^.Start^ = ':' THEN
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AToken^.Kind := lexerKindColon
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ELSIF ALexer^.Start^ = '>' THEN
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END;
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IF ALexer^.Start^ = '>' THEN
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AToken^.Kind := lexerKindGreaterThan
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ELSIF ALexer^.Start^ = '<' THEN
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END;
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IF ALexer^.Start^ = '<' THEN
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AToken^.Kind := lexerKindLessThan
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ELSIF ALexer^.Start^ = '(' THEN
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END;
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IF ALexer^.Start^ = '(' THEN
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AToken^.Kind := lexerKindLeftParen
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ELSIF ALexer^.Start^ = '-' THEN
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END;
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IF ALexer^.Start^ = '-' THEN
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AToken^.Kind := lexerKindLeftParen
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ELSIF ALexer^.Start^ = '.' THEN
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END;
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IF ALexer^.Start^ = '.' THEN
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AToken^.Kind := lexerKindDot
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END
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END TransitionActionFinalize;
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@ -255,14 +261,18 @@ BEGIN
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IF ALexer^.Start^ = '<' THEN
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IF ALexer^.Current^ = '>' THEN
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AToken^.Kind := lexerKindNotEqual
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ELSIF ALexer^.Current^ = '=' THEN
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END;
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IF ALexer^.Current^ = '=' THEN
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AToken^.Kind := lexerKindLessEqual
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END
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ELSIF (ALexer^.Start^ = '>') AND (ALexer^.Current^ = '=') THEN
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END;
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IF (ALexer^.Start^ = '>') AND (ALexer^.Current^ = '=') THEN
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AToken^.Kind := lexerKindGreaterEqual
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ELSIF (ALexer^.Start^ = '.') AND (ALexer^.Current^ = '.') THEN
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END;
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IF (ALexer^.Start^ = '.') AND (ALexer^.Current^ = '.') THEN
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AToken^.Kind := lexerKindRange
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ELSIF (ALexer^.Start^ = ':') AND (ALexer^.Current^ = '=') THEN
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END;
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IF (ALexer^.Start^ = ':') AND (ALexer^.Current^ = '=') THEN
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AToken^.Kind := lexerKindAssignment
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END;
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INC(ALexer^.Current)
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@ -275,14 +285,16 @@ BEGIN
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INC(ALexer^.Start)
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END TransitionActionSkip;
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(* 0x04. Delimited string action. *)
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(* Delimited string action. *)
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PROCEDURE TransitionActionDelimited(ALexer: PLexer; AToken: PLexerToken);
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BEGIN
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IF ALexer^.Start^ = '(' THEN
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AToken^.Kind := lexerKindComment
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ELSIF ALexer^.Start^ = '"' THEN
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END;
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IF ALexer^.Start^ = '"' THEN
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AToken^.Kind := lexerKindCharacter
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ELSIF ALexer^.Start^ = "'" THEN
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END;
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IF ALexer^.Start^ = "'" THEN
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AToken^.Kind := lexerKindString
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END;
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INC(ALexer^.Current)
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@ -291,93 +303,150 @@ END TransitionActionDelimited;
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(* Finalize keyword or identifier. *)
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PROCEDURE TransitionActionKeyId(ALexer: PLexer; AToken: PLexerToken);
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BEGIN
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AToken^.Kind := lexerKindIdentifier;
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IF CompareKeyword('PROGRAM', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindProgram
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ELSIF CompareKeyword('IMPORT', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('IMPORT', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindImport
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ELSIF CompareKeyword('CONST', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('CONST', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindConst
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ELSIF CompareKeyword('VAR', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('VAR', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindVar
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ELSIF CompareKeyword('IF', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('IF', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindIf
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ELSIF CompareKeyword('THEN', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('THEN', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindThen
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ELSIF CompareKeyword('ELSIF', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('ELSIF', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindElsif
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ELSIF CompareKeyword('ELSE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('ELSE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindElse
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ELSIF CompareKeyword('WHILE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('WHILE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindWhile
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ELSIF CompareKeyword('DO', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('DO', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindDo
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ELSIF CompareKeyword('PROCEDURE', ALexer^.Start, ALexer^.Current) OR CompareKeyword('proc', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('proc', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindProc
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ELSIF CompareKeyword('BEGIN', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('BEGIN', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindBegin
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ELSIF CompareKeyword('END', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('END', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindEnd
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ELSIF CompareKeyword('TYPE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('TYPE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindType
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ELSIF CompareKeyword('RECORD', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('RECORD', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindRecord
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ELSIF CompareKeyword('UNION', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('UNION', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindUnion
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ELSIF CompareKeyword('NIL', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('NIL', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindNull
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ELSIF CompareKeyword('AND', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('AND', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindAnd
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ELSIF CompareKeyword('OR', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('OR', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindOr
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ELSIF CompareKeyword('RETURN', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('RETURN', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindReturn
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ELSIF CompareKeyword('DEFINITION', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('DEFINITION', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindDefinition
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ELSIF CompareKeyword('TO', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('TO', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindTo
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ELSIF CompareKeyword('CASE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('CASE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindCase
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ELSIF CompareKeyword('OF', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('OF', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindOf
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ELSIF CompareKeyword('FROM', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('FROM', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindFrom
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ELSIF CompareKeyword('MODULE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('MODULE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindModule
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ELSIF CompareKeyword('IMPLEMENTATION', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('IMPLEMENTATION', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindImplementation
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ELSIF CompareKeyword('POINTER', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('POINTER', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindPointer
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ELSIF CompareKeyword('ARRAY', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('ARRAY', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindArray
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ELSIF CompareKeyword('TRUE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('TRUE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindBoolean;
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AToken^.booleanKind := TRUE
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ELSIF CompareKeyword('FALSE', ALexer^.Start, ALexer^.Current) THEN
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END;
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IF CompareKeyword('FALSE', ALexer^.Start, ALexer^.Current) THEN
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AToken^.Kind := lexerKindBoolean;
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AToken^.booleanKind := FALSE
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ELSE
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AToken^.Kind := lexerKindIdentifier
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END;
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END
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END TransitionActionKeyId;
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(* Action for tokens containing only one character. The character cannot be
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* followed by other characters forming a composite token. *)
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PROCEDURE TransitionActionSingle(ALexer: PLexer; AToken: PLexerToken);
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BEGIN
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CASE ALexer^.Current^ OF
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'&': AToken^.Kind := lexerKindAnd |
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';': AToken^.Kind := lexerKindSemicolon |
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',': AToken^.Kind := lexerKindComma |
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')': AToken^.Kind := lexerKindRightParen |
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'[': AToken^.Kind := lexerKindLeftSquare |
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']': AToken^.Kind := lexerKindRightSquare |
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'^': AToken^.Kind := lexerKindHat |
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'=': AToken^.Kind := lexerKindEqual |
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'+': AToken^.Kind := lexerKindPlus |
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'/': AToken^.Kind := lexerKindDivision |
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'%': AToken^.Kind := lexerKindRemainder |
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'@': AToken^.Kind := lexerKindAt |
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'|': AToken^.Kind := lexerKindPipe
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IF ALexer^.Current^ = '&' THEN
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AToken^.Kind := lexerKindAnd
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END;
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IF ALexer^.Current^ = ';' THEN
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AToken^.Kind := lexerKindSemicolon
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END;
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IF ALexer^.Current^ = ',' THEN
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AToken^.Kind := lexerKindComma
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END;
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IF ALexer^.Current^ = ',' THEN
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AToken^.Kind := lexerKindComma
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END;
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IF ALexer^.Current^ = ')' THEN
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AToken^.Kind := lexerKindRightParen
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END;
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IF ALexer^.Current^ = '[' THEN
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AToken^.Kind := lexerKindLeftSquare
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END;
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IF ALexer^.Current^ = ']' THEN
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AToken^.Kind := lexerKindRightSquare
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END;
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IF ALexer^.Current^ = '^' THEN
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AToken^.Kind := lexerKindHat
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END;
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IF ALexer^.Current^ = '=' THEN
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AToken^.Kind := lexerKindEqual
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END;
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IF ALexer^.Current^ = '+' THEN
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AToken^.Kind := lexerKindPlus
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END;
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IF ALexer^.Current^ = '/' THEN
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AToken^.Kind := lexerKindDivision
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END;
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IF ALexer^.Current^ = '%' THEN
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AToken^.Kind := lexerKindRemainder
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END;
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IF ALexer^.Current^ = '@' THEN
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AToken^.Kind := lexerKindAt
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END;
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IF ALexer^.Current^ = '|' THEN
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AToken^.Kind := lexerKindPipe
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END;
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INC(ALexer^.Current)
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END TransitionActionSingle;
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@ -389,7 +458,8 @@ BEGIN
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END TransitionActionInteger;
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PROCEDURE SetDefaultTransition(CurrentState: TransitionState; DefaultAction: TransitionAction; NextState: TransitionState);
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VAR DefaultTransition: Transition;
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VAR
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DefaultTransition: Transition;
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BEGIN
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DefaultTransition.Action := DefaultAction;
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DefaultTransition.NextState := NextState;
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@ -415,7 +485,7 @@ BEGIN
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Transitions[ORD(CurrentState)][ORD(transitionClassDoubleQuote)] := DefaultTransition;
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Transitions[ORD(CurrentState)][ORD(transitionClassGreater)] := DefaultTransition;
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Transitions[ORD(CurrentState)][ORD(transitionClassLess)] := DefaultTransition;
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Transitions[ORD(CurrentState)][ORD(transitionClassOther)] := DefaultTransition;
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Transitions[ORD(CurrentState)][ORD(transitionClassOther)] := DefaultTransition
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END SetDefaultTransition;
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(*
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@ -705,6 +775,8 @@ BEGIN
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END LexerCurrent;
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PROCEDURE LexerLex(ALexer: PLexer): LexerToken;
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VAR
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Result: LexerToken;
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BEGIN
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IF ALexer^.Length = 0 THEN
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ALexer^.Length := ReadNBytes(ALexer^.Input, ChunkSize, ALexer^.Buffer);
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@ -712,7 +784,8 @@ BEGIN
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END;
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ALexer^.Start := ALexer^.Current;
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RETURN LexerCurrent(ALexer)
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Result := LexerCurrent(ALexer);
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RETURN Result
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END LexerLex;
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PROCEDURE LexerDestroy(ALexer: PLexer);
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@ -92,13 +92,15 @@ BEGIN
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WriteSemicolon()
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END TranspileConstant;
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PROCEDURE TranspileConstantPart(AContext: PTranspilerContext; ALexer: PLexer);
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PROCEDURE TranspileConstantPart(AContext: PTranspilerContext; ALexer: PLexer): BOOLEAN;
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VAR
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Token: LexerToken;
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Result: BOOLEAN;
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BEGIN
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Token := LexerCurrent(ALexer);
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Result := Token.Kind = lexerKindConst;
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IF Token.Kind = lexerKindConst THEN
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IF Result THEN
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WriteString('CONST');
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WriteLn();
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Token := TranspilerLex(ALexer);
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@ -106,9 +108,9 @@ BEGIN
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WHILE Token.Kind = lexerKindIdentifier DO
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TranspileConstant(AContext, ALexer);
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Token := TranspilerLex(ALexer)
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END;
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WriteLn()
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END
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END
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END;
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RETURN Result
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END TranspileConstantPart;
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PROCEDURE TranspileModule(AContext: PTranspilerContext; ALexer: PLexer);
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@ -120,8 +122,9 @@ BEGIN
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IF Token.Kind = lexerKindDefinition THEN
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WriteString('DEFINITION ');
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Token := TranspilerLex(ALexer);
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ELSIF Token.Kind = lexerKindImplementation THEN
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Token := TranspilerLex(ALexer)
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END;
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IF Token.Kind = lexerKindImplementation THEN
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WriteString('IMPLEMENTATION ');
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Token := TranspilerLex(ALexer)
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END;
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@ -138,9 +141,13 @@ BEGIN
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(* Write the module body. *)
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Token := TranspilerLex(ALexer);
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TranspileImportPart(AContext, ALexer);
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TranspileConstantPart(AContext, ALexer);
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IF TranspileConstantPart(AContext, ALexer) THEN
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WriteLn()
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END;
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TranspileTypePart(AContext, ALexer);
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TranspileVariablePart(AContext, ALexer);
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IF TranspileVariablePart(AContext, ALexer) THEN
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WriteLn()
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END;
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TranspileProcedurePart(AContext, ALexer);
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Token := LexerCurrent(ALexer);
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@ -169,10 +176,9 @@ BEGIN
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IF Token.Kind = lexerKindSemicolon THEN
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Token := TranspilerLex(ALexer);
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WriteSemicolon()
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ELSE
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WriteLn()
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END
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Write(';')
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END;
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WriteLn()
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END
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END TranspileTypeFields;
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@ -285,15 +291,20 @@ BEGIN
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Token := TranspilerLex(ALexer);
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IF Token.Kind = lexerKindRecord THEN
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TranspileRecordType(AContext, ALexer)
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ELSIF Token.Kind = lexerKindLeftParen THEN
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END;
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IF Token.Kind = lexerKindLeftParen THEN
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TranspileEnumerationType(AContext, ALexer)
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ELSIF Token.Kind = lexerKindArray THEN
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END;
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IF Token.Kind = lexerKindArray THEN
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TranspileArrayType(AContext, ALexer)
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ELSIF (Token.Kind = lexerKindPointer) OR (Token.Kind = lexerKindHat) THEN
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END;
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IF (Token.Kind = lexerKindPointer) OR (Token.Kind = lexerKindHat) THEN
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TranspilePointerType(AContext, ALexer)
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ELSIF Token.Kind = lexerKindProc THEN
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END;
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IF Token.Kind = lexerKindProc THEN
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TranspileProcedureType(AContext, ALexer)
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ELSE
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END;
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IF Token.Kind = lexerKindIdentifier THEN
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WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start)
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END
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END TranspileTypeExpression;
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@ -349,13 +360,15 @@ BEGIN
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WriteSemicolon()
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END TranspileVariableDeclaration;
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PROCEDURE TranspileVariablePart(AContext: PTranspilerContext; ALexer: PLexer);
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PROCEDURE TranspileVariablePart(AContext: PTranspilerContext; ALexer: PLexer): BOOLEAN;
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VAR
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Token: LexerToken;
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||||
Result: BOOLEAN;
|
||||
BEGIN
|
||||
Token := LexerCurrent(ALexer);
|
||||
Result := Token.Kind = lexerKindVar;
|
||||
|
||||
IF Token.Kind = lexerKindVar THEN
|
||||
IF Result THEN
|
||||
WriteString('VAR');
|
||||
WriteLn();
|
||||
Token := TranspilerLex(ALexer);
|
||||
@ -363,12 +376,12 @@ BEGIN
|
||||
WHILE Token.Kind = lexerKindIdentifier DO
|
||||
TranspileVariableDeclaration(AContext, ALexer);
|
||||
Token := TranspilerLex(ALexer)
|
||||
END;
|
||||
WriteLn()
|
||||
END
|
||||
END
|
||||
END;
|
||||
RETURN Result
|
||||
END TranspileVariablePart;
|
||||
|
||||
PROCEDURE TranspileProcedureDeclaration(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
PROCEDURE TranspileProcedureHeading(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
@ -388,8 +401,7 @@ BEGIN
|
||||
Token := TranspilerLex(ALexer);
|
||||
WriteString(': ');
|
||||
|
||||
Token := TranspilerLex(ALexer);
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
TranspileTypeExpression(AContext, ALexer);
|
||||
|
||||
Token := TranspilerLex(ALexer);
|
||||
IF Token.Kind = lexerKindSemicolon THEN
|
||||
@ -409,6 +421,188 @@ BEGIN
|
||||
END;
|
||||
Token := TranspilerLex(ALexer);
|
||||
WriteSemicolon()
|
||||
END TranspileProcedureHeading;
|
||||
|
||||
PROCEDURE TranspileIfStatement(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
WriteString(' IF ');
|
||||
Token := TranspilerLex(ALexer);
|
||||
|
||||
WHILE Token.Kind <> lexerKindThen DO
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Write(' ');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END;
|
||||
WriteString('THEN');
|
||||
WriteLn();
|
||||
TranspileStatements(AContext, ALexer);
|
||||
WriteString(' END');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END TranspileIfStatement;
|
||||
|
||||
PROCEDURE TranspileWhileStatement(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
WriteString(' WHILE ');
|
||||
Token := TranspilerLex(ALexer);
|
||||
|
||||
WHILE Token.Kind <> lexerKindDo DO
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Write(' ');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END;
|
||||
WriteString('DO');
|
||||
WriteLn();
|
||||
TranspileStatements(AContext, ALexer);
|
||||
WriteString(' END');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END TranspileWhileStatement;
|
||||
|
||||
PROCEDURE TranspileAssignmentStatement(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
WriteString(' := ');
|
||||
Token := TranspilerLex(ALexer);
|
||||
|
||||
WHILE (Token.Kind <> lexerKindSemicolon) AND (Token.Kind <> lexerKindEnd) DO
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Write(' ');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END
|
||||
END TranspileAssignmentStatement;
|
||||
|
||||
PROCEDURE TranspileCallStatement(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
WriteString('(');
|
||||
Token := TranspilerLex(ALexer);
|
||||
|
||||
WHILE (Token.Kind <> lexerKindSemicolon) AND (Token.Kind <> lexerKindEnd) DO
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Token := TranspilerLex(ALexer)
|
||||
END
|
||||
END TranspileCallStatement;
|
||||
|
||||
PROCEDURE TranspileReturnStatement(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
WriteString(' RETURN ');
|
||||
Token := TranspilerLex(ALexer);
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Token := TranspilerLex(ALexer)
|
||||
END TranspileReturnStatement;
|
||||
|
||||
PROCEDURE TranspileStatement(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
Token := TranspilerLex(ALexer);
|
||||
|
||||
IF Token.Kind = lexerKindIf THEN
|
||||
TranspileIfStatement(AContext, ALexer)
|
||||
END;
|
||||
IF Token.Kind = lexerKindWhile THEN
|
||||
TranspileWhileStatement(AContext, ALexer)
|
||||
END;
|
||||
IF Token.Kind = lexerKindReturn THEN
|
||||
TranspileReturnStatement(AContext, ALexer)
|
||||
END;
|
||||
IF Token.Kind = lexerKindIdentifier THEN
|
||||
WriteString(' ');
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Token := TranspilerLex(ALexer);
|
||||
|
||||
WHILE Token.Kind = lexerKindLeftSquare DO
|
||||
Write('[');
|
||||
Token := TranspilerLex(ALexer);
|
||||
WHILE Token.Kind <> lexerKindRightSquare DO
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Token := TranspilerLex(ALexer)
|
||||
END;
|
||||
Write(']');
|
||||
Token := TranspilerLex(ALexer);
|
||||
END;
|
||||
IF Token.Kind = lexerKindHat THEN
|
||||
Write('^');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END;
|
||||
IF Token.Kind = lexerKindDot THEN
|
||||
Write('.');
|
||||
Token := TranspilerLex(ALexer);
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Token := TranspilerLex(ALexer);
|
||||
END;
|
||||
IF Token.Kind = lexerKindHat THEN
|
||||
Write('^');
|
||||
Token := TranspilerLex(ALexer)
|
||||
END;
|
||||
|
||||
IF Token.Kind = lexerKindAssignment THEN
|
||||
TranspileAssignmentStatement(AContext, ALexer)
|
||||
END;
|
||||
IF Token.Kind = lexerKindLeftParen THEN
|
||||
TranspileCallStatement(AContext, ALexer)
|
||||
END
|
||||
END
|
||||
END TranspileStatement;
|
||||
|
||||
PROCEDURE TranspileStatements(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
BEGIN
|
||||
Token := LexerCurrent(ALexer);
|
||||
|
||||
WHILE Token.Kind <> lexerKindEnd DO
|
||||
TranspileStatement(AContext, ALexer);
|
||||
Token := LexerCurrent(ALexer);
|
||||
|
||||
IF Token.Kind = lexerKindSemicolon THEN
|
||||
Write(';')
|
||||
END;
|
||||
WriteLn()
|
||||
END
|
||||
END TranspileStatements;
|
||||
|
||||
PROCEDURE TranspileStatementPart(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
BEGIN
|
||||
Token := LexerCurrent(ALexer);
|
||||
IF Token.Kind = lexerKindBegin THEN
|
||||
WriteString('BEGIN');
|
||||
WriteLn();
|
||||
TranspileStatements(AContext, ALexer)
|
||||
END
|
||||
END TranspileStatementPart;
|
||||
|
||||
PROCEDURE TranspileProcedureDeclaration(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
VAR
|
||||
Token: LexerToken;
|
||||
SeenPart: BOOLEAN;
|
||||
WrittenBytes: CARDINAL;
|
||||
BEGIN
|
||||
TranspileProcedureHeading(AContext, ALexer);
|
||||
SeenPart := TranspileConstantPart(AContext, ALexer);
|
||||
SeenPart := TranspileVariablePart(AContext, ALexer);
|
||||
TranspileStatementPart(AContext, ALexer);
|
||||
WriteString('END ');
|
||||
Token := TranspilerLex(ALexer);
|
||||
WrittenBytes := WriteNBytes(StdOut, ADDRESS(ALexer^.Current - ALexer^.Start), ALexer^.Start);
|
||||
Token := TranspilerLex(ALexer);
|
||||
WriteSemicolon();
|
||||
Token := TranspilerLex(ALexer)
|
||||
END TranspileProcedureDeclaration;
|
||||
|
||||
PROCEDURE TranspileProcedurePart(AContext: PTranspilerContext; ALexer: PLexer);
|
||||
@ -417,8 +611,10 @@ VAR
|
||||
BEGIN
|
||||
Token := LexerCurrent(ALexer);
|
||||
|
||||
IF Token.Kind = lexerKindProc THEN
|
||||
TranspileProcedureDeclaration(AContext, ALexer)
|
||||
WHILE Token.Kind = lexerKindProc DO
|
||||
TranspileProcedureDeclaration(AContext, ALexer);
|
||||
Token := LexerCurrent(ALexer);
|
||||
WriteLn()
|
||||
END
|
||||
END TranspileProcedurePart;
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user