125 lines
3.7 KiB
Plaintext
125 lines
3.7 KiB
Plaintext
module IBAF-Statements
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imports
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libstratego-gpp
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signatures/-
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pp/IBAF-parenthesize
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pp/IBAF-pp
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imports
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cbs-gen/IBAF-Expressions
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// Language "IBAFlang"
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rules
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// # Statements
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to-funcons:
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|[ execute[: (:Block:) :] ]| ->
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|[ execute-block[: (:Block:) :] ]|
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to-funcons:
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|[ execute[: print((:Exp:)); :] ]| ->
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|[ print eval-exp[: (:Exp:) :] ]|
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to-funcons:
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|[ execute[: int(:Id:); :] ]| ->
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|[ assign (bound id[: (:Id:) :],
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0) ]|
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to-funcons:
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|[ execute[: (:Id:)=(:Exp:); :] ]| ->
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|[ assign (bound id[: (:Id:) :],
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eval-exp[: (:Exp:) :]) ]|
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to-funcons:
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|[ execute[: int(:Id:)=(:Exp:); :] ]| ->
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|[ assign (bound id[: (:Id:) :],
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eval-exp[: (:Exp:) :]) ]|
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to-funcons:
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|[ execute[: return(:Exp:); :] ]| ->
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|[ return eval-exp[: (:Exp:) :] ]|
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to-funcons:
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|[ execute[: return; :] ]| ->
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|[ return null ]|
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to-funcons:
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|[ execute[: fun(:Id:)((:Params:))(:Block:) :] ]| ->
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|[ null ]|
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to-funcons:
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|[ execute[: if((:Exp:))(:Block:) :] ]| ->
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|[ if-else (eval-exp[: (:Exp:) :],
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execute-block[: (:Block:) :],
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null) ]|
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to-funcons:
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|[ execute[: if((:Exp:))(:Block1:)else(:Block2:) :] ]| ->
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|[ if-else (eval-exp[: (:Exp:) :],
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execute-block[: (:Block1:) :],
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execute-block[: (:Block2:) :]) ]|
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to-funcons:
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|[ execute[: while((:Exp:))(:Block:) :] ]| ->
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|[ while (eval-exp[: (:Exp:) :],
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execute-block[: (:Block:) :]) ]|
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to-funcons:
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|[ execute[: for(int(:Id:)=(:Exp1:);(:Exp2:))(:Block:) :] ]| ->
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|[ scope (bind (id[: (:Id:) :],
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allocate-initialised-variable (integers,
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eval-exp[: (:Exp1:) :])),
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while (eval-exp[: (:Exp2:) :],
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sequential (execute-block[: (:Block:) :],
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assign (bound id[: (:Id:) :],
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int-add (1,
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assigned bound id[: (:Id:) :]))))) ]|
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to-funcons:
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|[ execute[: :] ]| ->
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|[ null ]|
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to-funcons:
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|[ execute[: (:Stmt:)(:Stmt+:) :] ]| ->
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|[ sequential (execute[: (:Stmt:) :],
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execute[: (:Stmt+:) :]) ]|
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to-funcons:
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|[ execute-block[: {(:Stmt*:)} :] ]| ->
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|[ scope (collateral (collect-declared-vars[: (:Stmt*:) :]),
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execute[: (:Stmt*:) :]) ]|
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// # Handling parameter declarations
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to-funcons:
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|[ collect-params[: (:Id:) :] ]| ->
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|[ bind (id[: (:Id:) :],
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allocate-initialised-variable (integers,
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checked head given)) ]|
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to-funcons:
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|[ collect-params[: (:Id:),(:Params:) :] ]| ->
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|[ collect-params[: (:Id:) :],
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give (checked tail given,
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collect-params[: (:Params:) :]) ]|
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// # Handling variable declarations
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to-funcons:
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|[ collect-declared-vars[: int(:Id:)=(:Exp:); :] ]| ->
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|[ bind (id[: (:Id:) :],
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allocate-variable (integers)) ]|
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to-funcons:
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|[ collect-declared-vars[: int(:Id:); :] ]| ->
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|[ bind (id[: (:Id:) :],
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allocate-variable (integers)) ]|
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to-funcons:
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|[ collect-declared-vars[: fun(:Id:)((:Params:)){(:Stmt*:)} :] ]| ->
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|[ bind (id[: (:Id:) :],
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function abstraction (scope (collateral (collect-declared-vars[: (:Stmt*:) :],
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collect-params[: (:Params:) :]),
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execute[: (:Stmt*:) :]))) ]|
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to-funcons:
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|[ collect-declared-vars[: :] ]| ->
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|[ map () ]|
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to-funcons:
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|[ collect-declared-vars[: (:Stmt:) :] ]| ->
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|[ map () ]|
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to-funcons:
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|[ collect-declared-vars[: (:Stmt1:)(:Stmt2:)(:Stmt*:) :] ]| ->
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|[ collect-declared-vars[: (:Stmt1:) :],
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collect-declared-vars[: (:Stmt2:) :],
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collect-declared-vars[: (:Stmt*:) :] ]|
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