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Support while … else

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This commit is contained in:
Eugen Wissner
2025-04-13 18:40:49 +02:00
parent 8ec407515a
commit 1cd44508c3
6 changed files with 145 additions and 135 deletions
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36
include/elna/boot/ast.h
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@ -175,17 +175,22 @@ namespace elna::boot
virtual literal_expression *is_literal();
};
struct identifier_definition
{
std::string identifier;
bool exported;
};
/**
* Symbol definition.
*/
class definition : public node
{
protected:
definition(const struct position position, const std::string& identifier, const bool exported);
definition(const struct position position, identifier_definition identifier);
public:
const std::string identifier;
const bool exported;
const identifier_definition identifier;
};
/**
@ -298,8 +303,8 @@ namespace elna::boot
std::shared_ptr<type_expression> m_variable_type;
public:
variable_declaration(const struct position position, const std::string& identifier,
std::shared_ptr<type_expression> variable_type, const bool exported = false);
variable_declaration(const struct position position, identifier_definition identifier,
std::shared_ptr<type_expression> variable_type);
void accept(parser_visitor *visitor) override;
@ -326,8 +331,8 @@ namespace elna::boot
expression *m_body;
public:
constant_definition(const struct position position, const std::string& identifier,
const bool exported, expression *body);
constant_definition(const struct position position, identifier_definition identifier,
expression *body);
void accept(parser_visitor *visitor) override;
expression& body();
@ -364,8 +369,8 @@ namespace elna::boot
block *const body;
std::vector<std::string> parameter_names;
procedure_definition(const struct position position, const std::string& identifier,
const bool exported, procedure_type_expression *heading, block *body = nullptr);
procedure_definition(const struct position position, identifier_definition identifier,
procedure_type_expression *heading, block *body = nullptr);
void accept(parser_visitor *visitor) override;
procedure_type_expression& heading();
@ -381,8 +386,8 @@ namespace elna::boot
type_expression *m_body;
public:
type_definition(const struct position position, const std::string& identifier,
const bool exported, type_expression *expression);
type_definition(const struct position position, identifier_definition identifier,
type_expression *expression);
~type_definition();
void accept(parser_visitor *visitor) override;
@ -595,10 +600,11 @@ namespace elna::boot
conditional_statements *m_body;
public:
std::vector<conditional_statements *> branches;
const std::vector<conditional_statements *> branches;
const std::vector<statement *> *alternative;
if_statement(const struct position position, conditional_statements *body,
std::vector<conditional_statements *>&& branches,
std::vector<statement *> *alternative = nullptr);
void accept(parser_visitor *visitor) override;
@ -628,11 +634,13 @@ namespace elna::boot
public:
const std::vector<conditional_statements *> branches;
const std::optional<std::string> label;
const std::vector<statement *> *alternative;
while_statement(const struct position position, conditional_statements *body,
std::vector<conditional_statements *>&& branches);
std::vector<conditional_statements *>&& branches, std::vector<statement *> *alternative = nullptr);
while_statement(const struct position position, conditional_statements *body,
std::vector<conditional_statements *>&& branches, const std::string& label);
std::vector<conditional_statements *>&& branches, const std::string& label,
std::vector<statement *> *alternative = nullptr);
void accept(parser_visitor *visitor) override;
conditional_statements& body();