ast.h File Reference

the ast for Potion code in-memory More...

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Data Structures
struct	PNArg
	PNArg - call a function (unused). See now macro PN_S(name,1), PN_S(name,2) More...

Macros
#define	PN_TOK_MISSING   0x10000
#define	PN_AST(T, A, N, L)   potion_source(P, AST_##T, A, PN_NIL, PN_NIL, N, L)
#define	PN_AST2(T, A, B, N, L)   potion_source(P, AST_##T, A, B, PN_NIL, N, L)
#define	PN_AST3(T, A, B, C, N, L)   potion_source(P, AST_##T, A, B, C, N, L)
#define	PN_AST_(T, A)   potion_source(P, AST_##T, A, PN_NIL, PN_NIL, -1, PN_NIL)
#define	PN_AST2_(T, A, B)   potion_source(P, AST_##T, A, B, PN_NIL, -1, PN_NIL)
#define	PN_AST3_(T, A, B, C)   potion_source(P, AST_##T, A, B, C, -1, PN_NIL)
#define	PN_OP(T, A, B)   potion_source(P, T, A, B, PN_NIL, 0, PN_NIL)
	Warning: This might conflict with the typedef struct PN_OP. More...
#define	PN_TUPIF(T)   PN_IS_TUPLE(T) ? T : PN_TUP(T)
#define	PN_SRC(S)   ((struct PNSource *)S)
#define	PN_PART(S)   ((struct PNSource *)S)->part
#define	PN_S_(S, N)   ((struct PNSource *)S)->a[N]
#define	PN_S(S, N)   (PN)(((struct PNSource *)S)->a[N])
#define	PN_CLOSE(B)

Functions
PN	potion_source (Potion *, u8, PN, PN, PN, int, PN)
	PNSource constructor. More...

Detailed Description

the ast for Potion code in-memory

(c) 2008 why the lucky stiff, the freelance professor

Definition in file ast.h.

Macro Definition Documentation

#define PN_TOK_MISSING   0x10000

Definition at line 19 of file ast.h.

#define PN_AST	(		T,
			A,
			N,
			L
	)		potion_source(P, AST_##T, A, PN_NIL, PN_NIL, N, L)

Definition at line 21 of file ast.h.

#define PN_AST2	(		T,
			A,
			B,
			N,
			L
	)		potion_source(P, AST_##T, A, B, PN_NIL, N, L)

Definition at line 22 of file ast.h.

#define PN_AST3	(		T,
			A,
			B,
			C,
			N,
			L
	)		potion_source(P, AST_##T, A, B, C, N, L)

Definition at line 23 of file ast.h.

#define PN_AST_	(		T,
			A
	)		potion_source(P, AST_##T, A, PN_NIL, PN_NIL, -1, PN_NIL)

Definition at line 24 of file ast.h.

#define PN_AST2_	(		T,
			A,
			B
	)		potion_source(P, AST_##T, A, B, PN_NIL, -1, PN_NIL)

Definition at line 25 of file ast.h.

#define PN_AST3_	(		T,
			A,
			B,
			C
	)		potion_source(P, AST_##T, A, B, C, -1, PN_NIL)

Definition at line 26 of file ast.h.

#define PN_OP	(		T,
			A,
			B
	)		potion_source(P, T, A, B, PN_NIL, 0, PN_NIL)

Warning: This might conflict with the typedef struct PN_OP.

Definition at line 28 of file ast.h.

#define PN_TUPIF

(

T

)

PN_IS_TUPLE(T) ? T : PN_TUP(T)

Definition at line 29 of file ast.h.

#define PN_SRC

(

S

)

((struct PNSource *)S)

Definition at line 30 of file ast.h.

#define PN_PART

(

S

)

((struct PNSource *)S)->part

Definition at line 31 of file ast.h.

#define PN_S_	(		S,
			N
	)		((struct PNSource *)S)->a[N]

Definition at line 32 of file ast.h.

#define PN_S	(		S,
			N
	)		(PN)(((struct PNSource *)S)->a[N])

Definition at line 33 of file ast.h.

#define PN_CLOSE

(

B

)

Value:

({ \
    PN endname = B; \
    if (PN_IS_TUPLE(endname)) endname = PN_TUPLE_AT(endname, 0); \
    if (endname != PN_NIL) { \
      if (PN_PART(endname) == AST_EXPR) endname = PN_TUPLE_AT(PN_S(endname, 0), 0); \
      if (PN_PART(endname) == AST_MSG || PN_PART(endname) == AST_PATH) \
        endname = PN_S(endname, 0); \
      if (P->unclosed == endname) { P->unclosed = PN_NIL; } \
    } \
  })

Definition at line 34 of file ast.h.

Function Documentation

PN potion_source	(	Potion *	P,
		u8	p,
		PN	a,
		PN	b,
		PN	c,
		int	lineno,
		PN	line
	)

PNSource constructor.

Parameters

p	AST type
a,b,c	AST operands
lineno	linenumber in src file
line	associated line PNString in src file

Returns

a new AST node with up to three operands

Definition at line 35 of file ast.c.