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Support variable declaration initializer

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This commit is contained in:
Eugen Wissner
2025-08-19 22:58:39 +02:00
parent 569139d44a
commit 0c2a396320
10 changed files with 175 additions and 102 deletions
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9
include/elna/boot/ast.h
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@@ -340,17 +340,20 @@ namespace elna::boot
/**
* Variable declaration.
*/
class variable_declaration : public declaration
class variable_declaration : public node
{
std::shared_ptr<type_expression> m_variable_type;
public:
variable_declaration(const struct position position, identifier_definition identifier,
std::shared_ptr<type_expression> variable_type);
variable_declaration(const struct position position,
std::vector<identifier_definition>&& identifier, std::shared_ptr<type_expression> variable_type,
expression *body = nullptr);
void accept(parser_visitor *visitor) override;
const std::vector<identifier_definition> identifiers;
type_expression& variable_type();
expression *const body;
};
/**

10
include/elna/boot/semantic.h
View File

@@ -79,6 +79,14 @@ namespace elna::boot
std::string what() const override;
};
class variable_initializer_error : public error
{
public:
variable_initializer_error(const char *path, const struct position position);
std::string what() const override;
};
/**
* Checks types.
*/
@@ -174,5 +182,7 @@ namespace elna::boot
void visit(program *program) override;
void visit(import_declaration *) override;
void visit(unit *unit) override;
void visit(variable_declaration *declaration) override;
void visit(procedure_declaration *definition) override;
};
}