Library Reference

version 2.112.0

Internal API

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dmd.parse

Takes a token stream from the lexer, and parses it into an abstract syntax tree.

SpecificationD Grammar

Authors:

Walter Bright

License:

Boost License 1.0

Sourceparse.d

Documentationhttps://dlang.org/phobos/dmd_parse.html

Coveragehttps://codecov.io/gh/dlang/dmd/src/master/compiler/src/dmd/parse.d

classParser(AST, Lexer = dmd.lexer.Lexer): Lexer;

this(Locloc, AST.Module_module, const(char)[]input, booldoDocComment, ErrorSinkerrorSink, const CompileEnv*compileEnv, const booldoUnittests) scope;

Use this constructor for string mixins.

Inputloc = location in source file of mixin

this(AST.Module_module, const(char)[]input, booldoDocComment, ErrorSinkerrorSink, const CompileEnv*compileEnv, const booldoUnittests) scope;

Main Parser constructor.

AST.Dsymbols*parseModule();

Parse a module, i.e. the optionalmodule x.y.z declaration and all declarations found in the current file.

Returns:

the list of declarations or an empty list in case of malformed declarations, the module declaration will be stored asthis.md if found

final boolparseModuleDeclaration();

Parse the optional module declaration

Returns:

false if a malformed module declaration was found

final AST.Dsymbols*parseModuleContent();

Parse the content of a module, i.e. all declarations found until the end of file.

Returns:

the list of declarations or an empty list in case of malformed declarations

AST.Dsymbols*parseDeclDefs(intonce, AST.Dsymbol*pLastDecl = null, PrefixAttributes!AST*pAttrs = null);

Parse declarations and definitions

Parameters:

int`once`	!=0 means parse exactly one decl or def
AST.Dsymbol*`pLastDecl`	set to last decl or def parsed
PrefixAttributes!AST*`pAttrs`	keep track of attributes

Returns:

array of declared symbols

RootObjectparseTypeOrAssignExp(TOKendtoken = TOK.reserved);

Parse a Type or an Expression

Returns:

RootObject representing the AST

AST.ParameterparseAssignCondition();

Parse an assignment condition forif,switch orwhile statements.

Returns:

The variable that is declared inside the condition

AST.StatementparseStatement(intflags, const(char)**endPtr = null, Loc*pEndloc = null);

Inputflags PSxxxx

OutputpEndloc if { ... statements ... }, store location of closing brace, otherwise loc of last token of statement

AST.StatementparseAsm(boolendOfLine);

Parse inline assembler block. Enters with token on theasm.https://dlang.org/spec/iasm.html

AsmStatementasm FunctionAttributes(opt) { AsmInstructionListopt }

AsmInstructionListAsmInstruction ; AsmInstruction ; AsmInstruction

Parameters:

boolendOfLine true if EOL means end of asm statement

Returns:

inline assembler block as a Statement

voidcheck(Locloc, TOKvalue);

Issue error if the current token is notvalue, advance to next token.

Parameters:

Loc`loc`	location for error message
TOK`value`	token value to compare with

voidcheck(TOKvalue);

Issue error if the current token is notvalue, advance to next token.

Parameters:

TOKvalue token value to compare with

voidcheck(TOKvalue, const(char)*string);

Issue error if the current token is notvalue, advance to next token.

Parameters:

TOK`value`	token value to compare with
const(char)*`string`	for error message

enumNeedDeclaratorId;

boolskipParens(Token*t, Token**pt);

Skip parentheses.

Parameters:

Token*`t`	on opening (
Token**`pt`	*pt is set to token past ')' on true

Returns:

true successful false some parsing error

AST.ExpressionparsePrimaryExp();

Expression Parser

static STCisBuiltinAtAttribute(Identifierident);

Recognize builtin @ attributes

Parameters:

Identifierident identifier

Returns:

storage class for attribute, 0 if not

immutable PREC[EXP.max + 1]precedence;

Set operator precedence for each operator.

Used by hdrgen

structParsedLinkage(AST);

The result of theParseLinkage function

LINKlink;: What linkage was specified
CPPMANGLEcppmangle;: Ifextern(C++, class|struct), contains theclass|struct
AST.Identifiers*idents;: Ifextern(C++, some.identifier), will be the identifiers
AST.Expressions*identExps;: If `extern(C++, (some_tuple_expression)|"string"), will be the expressions

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Library Reference

dmd.parse