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Split the parser from the code generator

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This commit is contained in:
Eugen Wissner
2025-06-11 22:36:35 +02:00
parent 00e557686b
commit e3f094c8a5
7 changed files with 409 additions and 230 deletions
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33
source/Parser.def
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@ -153,12 +153,12 @@ TYPE
PAstTypeExpression = POINTER TO AstTypeExpression;
PPAstTypeExpression = POINTER TO PAstTypeExpression;
AstTypeDeclaration = RECORD
AstTypedDeclaration = RECORD
identifier: Identifier;
type_expression: PAstTypeExpression
END;
PAstTypeDeclaration = POINTER TO AstTypeDeclaration;
PPAstTypeDeclaration = POINTER TO PAstTypeDeclaration;
PAstTypedDeclaration = POINTER TO AstTypedDeclaration;
PPAstTypedDeclaration = POINTER TO PAstTypedDeclaration;
AstVariableDeclaration = RECORD
variable_name: Identifier;
@ -167,23 +167,38 @@ TYPE
PAstVariableDeclaration = POINTER TO AstVariableDeclaration;
PPAstVariableDeclaration = POINTER TO PAstVariableDeclaration;
AstProcedureDeclaration = RECORD
name: Identifier;
parameter_count: CARDINAL;
parameters: PAstTypedDeclaration;
return_type: PAstTypeExpression;
constants: PPAstConstantDeclaration;
variables: PPAstVariableDeclaration;
statements: AstCompoundStatement
END;
PAstProcedureDeclaration = POINTER TO AstProcedureDeclaration;
PPAstProcedureDeclaration = POINTER TO PAstProcedureDeclaration;
AstModule = RECORD
main: BOOLEAN;
imports: PPAstImportStatement;
constants: PPAstConstantDeclaration;
types: PPAstTypeDeclaration;
variables: PPAstVariableDeclaration
types: PPAstTypedDeclaration;
variables: PPAstVariableDeclaration;
procedures: PPAstProcedureDeclaration;
statements: AstCompoundStatement
END;
PAstModule = POINTER TO AstModule;
PROCEDURE parse_type_expression(lexer: PLexer): PAstTypeExpression;
PROCEDURE parse_type_part(lexer: PLexer): PPAstTypeDeclaration;
PROCEDURE parse_type_part(lexer: PLexer): PPAstTypedDeclaration;
PROCEDURE parse_variable_part(lexer: PLexer): PPAstVariableDeclaration;
PROCEDURE parse_constant_part(lexer: PLexer): PPAstConstantDeclaration;
PROCEDURE parse_import_part(lexer: PLexer): PPAstImportStatement;
PROCEDURE parse_designator(lexer: PLexer): PAstExpression;
PROCEDURE parse_expression(lexer: PLexer): PAstExpression;
PROCEDURE parse_return_statement(lexer: PLexer): PAstStatement;
PROCEDURE parse_assignment_statement(lexer: PLexer; assignee: PAstExpression): PAstStatement;
PROCEDURE parse_call_statement(lexer: PLexer; call: PAstExpression): PAstStatement;
PROCEDURE parse_statement_part(lexer: PLexer): AstCompoundStatement;
PROCEDURE parse_procedure_part(lexer: PLexer): PPAstProcedureDeclaration;
PROCEDURE parse_module(lexer: PLexer): PAstModule;
END Parser.