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Minimize memory usage for AST nodes by using Slice<T> rather than Array<T> when the parameter doesn't need to grow

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This commit is contained in:
gingerBill
2020-11-16 15:18:25 +00:00
parent adf6c85fd3
commit ca4b0527e8
12 changed files with 218 additions and 119 deletions
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src/parser.hpp
+28 -29
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@@ -46,7 +46,7 @@ enum ParseFileError {
};
struct CommentGroup {
Array<Token> list; // Token_Comment
Slice<Token> list; // Token_Comment
};
@@ -98,8 +98,8 @@ struct AstFile {
bool in_foreign_block;
bool allow_type;
Array<Ast *> decls;
Array<Ast *> imports; // 'import' 'using import'
Slice<Ast *> decls;
Array<Ast *> imports; // 'import'
isize directive_count;
Ast * curr_proc;
@@ -277,7 +277,6 @@ char const *inline_asm_dialect_strings[InlineAsmDialect_COUNT] = {
AST_KIND(Undef, "undef", Token) \
AST_KIND(BasicLit, "basic literal", struct { \
Token token; \
ExactValue value; \
}) \
AST_KIND(BasicDirective, "basic directive", struct { \
Token token; \
@@ -291,7 +290,7 @@ char const *inline_asm_dialect_strings[InlineAsmDialect_COUNT] = {
Token token; \
Token open; \
Token close; \
Array<Ast *> args; \
Slice<Ast *> args; \
}) \
AST_KIND(ProcLit, "procedure literal", struct { \
Ast *type; \
@@ -299,12 +298,12 @@ char const *inline_asm_dialect_strings[InlineAsmDialect_COUNT] = {
u64 tags; \
ProcInlining inlining; \
Token where_token; \
Array<Ast *> where_clauses; \
Slice<Ast *> where_clauses; \
DeclInfo *decl; \
}) \
AST_KIND(CompoundLit, "compound literal", struct { \
Ast *type; \
Array<Ast *> elems; \
Slice<Ast *> elems; \
Token open, close; \
i64 max_count; \
}) \
@@ -327,7 +326,7 @@ AST_KIND(_ExprBegin, "", bool) \
}) \
AST_KIND(CallExpr, "call expression", struct { \
Ast * proc; \
Array<Ast *> args; \
Slice<Ast *> args; \
Token open; \
Token close; \
Token ellipsis; \
@@ -344,7 +343,7 @@ AST_KIND(_ExprBegin, "", bool) \
AST_KIND(InlineAsmExpr, "inline asm expression", struct { \
Token token; \
Token open, close; \
Array<Ast *> param_types; \
Slice<Ast *> param_types; \
Ast *return_type; \
Ast *asm_string; \
Ast *constraints_string; \
@@ -364,11 +363,11 @@ AST_KIND(_StmtBegin, "", bool) \
}) \
AST_KIND(AssignStmt, "assign statement", struct { \
Token op; \
Array<Ast *> lhs, rhs; \
Slice<Ast *> lhs, rhs; \
}) \
AST_KIND(_ComplexStmtBegin, "", bool) \
AST_KIND(BlockStmt, "block statement", struct { \
Array<Ast *> stmts; \
Slice<Ast *> stmts; \
Ast *label; \
Token open, close; \
}) \
@@ -390,7 +389,7 @@ AST_KIND(_ComplexStmtBegin, "", bool) \
}) \
AST_KIND(ReturnStmt, "return statement", struct { \
Token token; \
Array<Ast *> results; \
Slice<Ast *> results; \
}) \
AST_KIND(ForStmt, "for statement", struct { \
Token token; \
@@ -420,8 +419,8 @@ AST_KIND(_ComplexStmtBegin, "", bool) \
}) \
AST_KIND(CaseClause, "case clause", struct { \
Token token; \
Array<Ast *> list; \
Array<Ast *> stmts; \
Slice<Ast *> list; \
Slice<Ast *> stmts; \
Entity *implicit_entity; \
}) \
AST_KIND(SwitchStmt, "switch statement", struct { \
@@ -438,12 +437,12 @@ AST_KIND(_ComplexStmtBegin, "", bool) \
Ast *tag; \
Ast *body; \
bool partial; \
}) \
}) \
AST_KIND(DeferStmt, "defer statement", struct { Token token; Ast *stmt; }) \
AST_KIND(BranchStmt, "branch statement", struct { Token token; Ast *label; }) \
AST_KIND(UsingStmt, "using statement", struct { \
Token token; \
Array<Ast *> list; \
Slice<Ast *> list; \
}) \
AST_KIND(_ComplexStmtEnd, "", bool) \
AST_KIND(_StmtEnd, "", bool) \
@@ -461,9 +460,9 @@ AST_KIND(_DeclBegin, "", bool) \
Ast *name; \
}) \
AST_KIND(ValueDecl, "value declaration", struct { \
Array<Ast *> names; \
Slice<Ast *> names; \
Ast * type; \
Array<Ast *> values; \
Slice<Ast *> values; \
Array<Ast *> attributes; \
CommentGroup *docs; \
CommentGroup *comment; \
@@ -488,10 +487,10 @@ AST_KIND(_DeclBegin, "", bool) \
}) \
AST_KIND(ForeignImportDecl, "foreign import declaration", struct { \
Token token; \
Array<Token> filepaths; \
Slice<Token> filepaths; \
Token library_name; \
String collection_name; \
Array<String> fullpaths; \
Slice<String> fullpaths; \
Array<Ast *> attributes; \
CommentGroup *docs; \
CommentGroup *comment; \
@@ -499,11 +498,11 @@ AST_KIND(_DeclBegin, "", bool) \
AST_KIND(_DeclEnd, "", bool) \
AST_KIND(Attribute, "attribute", struct { \
Token token; \
Array<Ast *> elems; \
Slice<Ast *> elems; \
Token open, close; \
}) \
AST_KIND(Field, "field", struct { \
Array<Ast *> names; \
Slice<Ast *> names; \
Ast * type; \
Ast * default_value; \
Token tag; \
@@ -513,7 +512,7 @@ AST_KIND(_DeclEnd, "", bool) \
}) \
AST_KIND(FieldList, "field list", struct { \
Token token; \
Array<Ast *> list; \
Slice<Ast *> list; \
}) \
AST_KIND(_TypeBegin, "", bool) \
AST_KIND(TypeidType, "typeid", struct { \
@@ -567,34 +566,34 @@ AST_KIND(_TypeBegin, "", bool) \
}) \
AST_KIND(StructType, "struct type", struct { \
Token token; \
Array<Ast *> fields; \
Slice<Ast *> fields; \
isize field_count; \
Ast *polymorphic_params; \
Ast *align; \
Token where_token; \
Array<Ast *> where_clauses; \
Slice<Ast *> where_clauses; \
bool is_packed; \
bool is_raw_union; \
}) \
AST_KIND(UnionType, "union type", struct { \
Token token; \
Array<Ast *> variants; \
Slice<Ast *> variants; \
Ast *polymorphic_params; \
Ast * align; \
bool maybe; \
bool no_nil; \
Token where_token; \
Array<Ast *> where_clauses; \
Slice<Ast *> where_clauses; \
}) \
AST_KIND(EnumType, "enum type", struct { \
Token token; \
Ast * base_type; \
Array<Ast *> fields; /* FieldValue */ \
Slice<Ast *> fields; /* FieldValue */ \
bool is_using; \
}) \
AST_KIND(BitFieldType, "bit field type", struct { \
Token token; \
Array<Ast *> fields; /* FieldValue with : */ \
Slice<Ast *> fields; /* FieldValue with : */ \
Ast * align; \
}) \
AST_KIND(BitSetType, "bit set type", struct { \